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Y Combinator companies API

This repository contains an unofficial API for Y Combinator companies fetched from the Y Combinator website's Algolia search index. It only includes publicly launched companies with pages on the Y Combinator website. It does not scrape the Y Combinator website, instead it uses the Algolia search index to fetch the companies in a GitHub Actions workflow that runs every day.

ℹ️ Metadata

API endpoint: https://yc-oss.github.io/api/meta.json

  • Last updated: February 13, 2025 at 12:50 AM
  • Companies: 5121
  • Batches: 44
  • Industries: 58
  • Tags: 330

💻 APIs

🏢 Companies

List of companies API endpoint
All launched companies https://yc-oss.github.io/api/companies/all.json
Top companies https://yc-oss.github.io/api/companies/top.json
Black-founded companies https://yc-oss.github.io/api/companies/black-founded.json
Hispanic/Latino-founded companies https://yc-oss.github.io/api/companies/hispanic-latino-founded.json
Women-founded companies https://yc-oss.github.io/api/companies/women-founded.json
Not-for-profit companies https://yc-oss.github.io/api/companies/nonprofit.json
Companies currently hiring https://yc-oss.github.io/api/companies/hiring.json

🎓 Batches

Companies per batch
Batch Count API endpoint
X25 1 https://yc-oss.github.io/api/batches/x25.json
W25 106 https://yc-oss.github.io/api/batches/w25.json
W24 252 https://yc-oss.github.io/api/batches/w24.json
S24 253 https://yc-oss.github.io/api/batches/s24.json
F24 95 https://yc-oss.github.io/api/batches/f24.json
W23 275 https://yc-oss.github.io/api/batches/w23.json
S23 221 https://yc-oss.github.io/api/batches/s23.json
W22 400 https://yc-oss.github.io/api/batches/w22.json
S22 236 https://yc-oss.github.io/api/batches/s22.json
W21 336 https://yc-oss.github.io/api/batches/w21.json
S21 391 https://yc-oss.github.io/api/batches/s21.json
W20 229 https://yc-oss.github.io/api/batches/w20.json
S20 208 https://yc-oss.github.io/api/batches/s20.json
S19 174 https://yc-oss.github.io/api/batches/s19.json
W19 194 https://yc-oss.github.io/api/batches/w19.json
W18 147 https://yc-oss.github.io/api/batches/w18.json
S18 131 https://yc-oss.github.io/api/batches/s18.json
S17 125 https://yc-oss.github.io/api/batches/s17.json
W17 116 https://yc-oss.github.io/api/batches/w17.json
W16 122 https://yc-oss.github.io/api/batches/w16.json
S16 102 https://yc-oss.github.io/api/batches/s16.json
W15 111 https://yc-oss.github.io/api/batches/w15.json
S15 105 https://yc-oss.github.io/api/batches/s15.json
W14 74 https://yc-oss.github.io/api/batches/w14.json
S14 80 https://yc-oss.github.io/api/batches/s14.json
W13 46 https://yc-oss.github.io/api/batches/w13.json
S13 52 https://yc-oss.github.io/api/batches/s13.json
W12 66 https://yc-oss.github.io/api/batches/w12.json
S12 83 https://yc-oss.github.io/api/batches/s12.json
S11 60 https://yc-oss.github.io/api/batches/s11.json
W11 45 https://yc-oss.github.io/api/batches/w11.json
S10 36 https://yc-oss.github.io/api/batches/s10.json
W10 27 https://yc-oss.github.io/api/batches/w10.json
S09 26 https://yc-oss.github.io/api/batches/s09.json
W09 16 https://yc-oss.github.io/api/batches/w09.json
S08 22 https://yc-oss.github.io/api/batches/s08.json
W08 21 https://yc-oss.github.io/api/batches/w08.json
S07 19 https://yc-oss.github.io/api/batches/s07.json
W07 13 https://yc-oss.github.io/api/batches/w07.json
S06 11 https://yc-oss.github.io/api/batches/s06.json
W06 7 https://yc-oss.github.io/api/batches/w06.json
S05 8 https://yc-oss.github.io/api/batches/s05.json
IK12 76 https://yc-oss.github.io/api/batches/ik12.json
Unspecified 3 https://yc-oss.github.io/api/batches/unspecified.json

🏭 Industries

Companies per industry
Industry Count API endpoint
Agriculture 26 https://yc-oss.github.io/api/industries/agriculture.json
Analytics 118 https://yc-oss.github.io/api/industries/analytics.json
Apparel and Cosmetics 49 https://yc-oss.github.io/api/industries/apparel-and-cosmetics.json
Asset Management 49 https://yc-oss.github.io/api/industries/asset-management.json
Automotive 20 https://yc-oss.github.io/api/industries/automotive.json
Aviation and Space 49 https://yc-oss.github.io/api/industries/aviation-and-space.json
B2B 2453 https://yc-oss.github.io/api/industries/b2b.json
Banking and Exchange 73 https://yc-oss.github.io/api/industries/banking-and-exchange.json
Climate 54 https://yc-oss.github.io/api/industries/climate.json
Construction 42 https://yc-oss.github.io/api/industries/construction.json
Consumer 813 https://yc-oss.github.io/api/industries/consumer.json
Consumer Electronics 38 https://yc-oss.github.io/api/industries/consumer-electronics.json
Consumer Finance 79 https://yc-oss.github.io/api/industries/consumer-finance.json
Consumer Health and Wellness 112 https://yc-oss.github.io/api/industries/consumer-health-and-wellness.json
Content 106 https://yc-oss.github.io/api/industries/content.json
Credit and Lending 71 https://yc-oss.github.io/api/industries/credit-and-lending.json
Diagnostics 53 https://yc-oss.github.io/api/industries/diagnostics.json
Drones 17 https://yc-oss.github.io/api/industries/drones.json
Drug Discovery and Delivery 46 https://yc-oss.github.io/api/industries/drug-discovery-and-delivery.json
Education 194 https://yc-oss.github.io/api/industries/education.json
Energy 33 https://yc-oss.github.io/api/industries/energy.json
Engineering, Product and Design 513 https://yc-oss.github.io/api/industries/engineering-product-and-design.json
Finance and Accounting 110 https://yc-oss.github.io/api/industries/finance-and-accounting.json
Fintech 578 https://yc-oss.github.io/api/industries/fintech.json
Food and Beverage 96 https://yc-oss.github.io/api/industries/food-and-beverage.json
Gaming 67 https://yc-oss.github.io/api/industries/gaming.json
Government 37 https://yc-oss.github.io/api/industries/government.json
Healthcare 606 https://yc-oss.github.io/api/industries/healthcare.json
Healthcare IT 121 https://yc-oss.github.io/api/industries/healthcare-it.json
Healthcare Services 65 https://yc-oss.github.io/api/industries/healthcare-services.json
Home and Personal 129 https://yc-oss.github.io/api/industries/home-and-personal.json
Housing and Real Estate 79 https://yc-oss.github.io/api/industries/housing-and-real-estate.json
Human Resources 84 https://yc-oss.github.io/api/industries/human-resources.json
Industrial Bio 32 https://yc-oss.github.io/api/industries/industrial-bio.json
Industrials 281 https://yc-oss.github.io/api/industries/industrials.json
Infrastructure 222 https://yc-oss.github.io/api/industries/infrastructure.json
Insurance 47 https://yc-oss.github.io/api/industries/insurance.json
Job and Career Services 17 https://yc-oss.github.io/api/industries/job-and-career-services.json
Legal 35 https://yc-oss.github.io/api/industries/legal.json
Manufacturing and Robotics 69 https://yc-oss.github.io/api/industries/manufacturing-and-robotics.json
Marketing 142 https://yc-oss.github.io/api/industries/marketing.json
Medical Devices 42 https://yc-oss.github.io/api/industries/medical-devices.json
Office Management 25 https://yc-oss.github.io/api/industries/office-management.json
Operations 117 https://yc-oss.github.io/api/industries/operations.json
Payments 115 https://yc-oss.github.io/api/industries/payments.json
Productivity 192 https://yc-oss.github.io/api/industries/productivity.json
Real Estate and Construction 140 https://yc-oss.github.io/api/industries/real-estate-and-construction.json
Recruiting and Talent 68 https://yc-oss.github.io/api/industries/recruiting-and-talent.json
Retail 124 https://yc-oss.github.io/api/industries/retail.json
Sales 118 https://yc-oss.github.io/api/industries/sales.json
Security 92 https://yc-oss.github.io/api/industries/security.json
Social 112 https://yc-oss.github.io/api/industries/social.json
Supply Chain and Logistics 118 https://yc-oss.github.io/api/industries/supply-chain-and-logistics.json
Therapeutics 63 https://yc-oss.github.io/api/industries/therapeutics.json
Transportation Services 26 https://yc-oss.github.io/api/industries/transportation-services.json
Travel, Leisure and Tourism 32 https://yc-oss.github.io/api/industries/travel-leisure-and-tourism.json
Unspecified 19 https://yc-oss.github.io/api/industries/unspecified.json
Virtual and Augmented Reality 22 https://yc-oss.github.io/api/industries/virtual-and-augmented-reality.json

🏷️ Tags

Companies per tag
Tag Count API endpoint
3D Printed Foods 1 https://yc-oss.github.io/api/tags/3d-printed-foods.json
3D Printing 9 https://yc-oss.github.io/api/tags/3d-printing.json
Advanced Materials 4 https://yc-oss.github.io/api/tags/advanced-materials.json
Advertising 30 https://yc-oss.github.io/api/tags/advertising.json
Aerospace 27 https://yc-oss.github.io/api/tags/aerospace.json
Agriculture 29 https://yc-oss.github.io/api/tags/agriculture.json
AI 517 https://yc-oss.github.io/api/tags/ai.json
AI Assistant 114 https://yc-oss.github.io/api/tags/ai-assistant.json
AI-Enhanced Learning 41 https://yc-oss.github.io/api/tags/ai-enhanced-learning.json
AI-powered Drug Discovery 35 https://yc-oss.github.io/api/tags/ai-powered-drug-discovery.json
AIOps 41 https://yc-oss.github.io/api/tags/aiops.json
Air Taxis 5 https://yc-oss.github.io/api/tags/air-taxis.json
Airlines 3 https://yc-oss.github.io/api/tags/airlines.json
Airplanes 11 https://yc-oss.github.io/api/tags/airplanes.json
Alternative Battery Tech 2 https://yc-oss.github.io/api/tags/alternative-battery-tech.json
Alternative Fuels 1 https://yc-oss.github.io/api/tags/alternative-fuels.json
Analytics 179 https://yc-oss.github.io/api/tags/analytics.json
Anti-Aging 8 https://yc-oss.github.io/api/tags/anti-aging.json
API 146 https://yc-oss.github.io/api/tags/api.json
APIs 6 https://yc-oss.github.io/api/tags/apis.json
Apparel 4 https://yc-oss.github.io/api/tags/apparel.json
AR 5 https://yc-oss.github.io/api/tags/ar.json
Architecture 3 https://yc-oss.github.io/api/tags/architecture.json
Art Trading Platforms 2 https://yc-oss.github.io/api/tags/art-trading-platforms.json
Artificial Intelligence 646 https://yc-oss.github.io/api/tags/artificial-intelligence.json
Assistive Tech 7 https://yc-oss.github.io/api/tags/assistive-tech.json
Augmented Reality 20 https://yc-oss.github.io/api/tags/augmented-reality.json
Auto Commerce 6 https://yc-oss.github.io/api/tags/auto-commerce.json
Automation 61 https://yc-oss.github.io/api/tags/automation.json
Automotive 18 https://yc-oss.github.io/api/tags/automotive.json
Autonomous Delivery 9 https://yc-oss.github.io/api/tags/autonomous-delivery.json
Autonomous Trucking 12 https://yc-oss.github.io/api/tags/autonomous-trucking.json
B2B 994 https://yc-oss.github.io/api/tags/b2b.json
Banking as a Service 25 https://yc-oss.github.io/api/tags/banking-as-a-service.json
Batteryless IoT Sensors 1 https://yc-oss.github.io/api/tags/batteryless-iot-sensors.json
Beauty 10 https://yc-oss.github.io/api/tags/beauty.json
Big Data 24 https://yc-oss.github.io/api/tags/big-data.json
Billing 7 https://yc-oss.github.io/api/tags/billing.json
Biometrics 6 https://yc-oss.github.io/api/tags/biometrics.json
Bioplastic 3 https://yc-oss.github.io/api/tags/bioplastic.json
Biotech 127 https://yc-oss.github.io/api/tags/biotech.json
Biotechnology 9 https://yc-oss.github.io/api/tags/biotechnology.json
Blockchain 2 https://yc-oss.github.io/api/tags/blockchain.json
Booking 2 https://yc-oss.github.io/api/tags/booking.json
Calendar 7 https://yc-oss.github.io/api/tags/calendar.json
Call Center 6 https://yc-oss.github.io/api/tags/call-center.json
Cannabis 7 https://yc-oss.github.io/api/tags/cannabis.json
Carbon Capture and Removal 14 https://yc-oss.github.io/api/tags/carbon-capture-and-removal.json
Careers 4 https://yc-oss.github.io/api/tags/careers.json
Cashierless Checkout 5 https://yc-oss.github.io/api/tags/cashierless-checkout.json
Cell Therapy 5 https://yc-oss.github.io/api/tags/cell-therapy.json
Cellular Agriculture 6 https://yc-oss.github.io/api/tags/cellular-agriculture.json
Chat 3 https://yc-oss.github.io/api/tags/chat.json
Chatbot 7 https://yc-oss.github.io/api/tags/chatbot.json
Chatbots 2 https://yc-oss.github.io/api/tags/chatbots.json
China 3 https://yc-oss.github.io/api/tags/china.json
Civic Tech 9 https://yc-oss.github.io/api/tags/civic-tech.json
Clean Meat 1 https://yc-oss.github.io/api/tags/clean-meat.json
Climate 158 https://yc-oss.github.io/api/tags/climate.json
ClimateTech 32 https://yc-oss.github.io/api/tags/climatetech.json
Cloud Computing 39 https://yc-oss.github.io/api/tags/cloud-computing.json
Cloud Gaming 3 https://yc-oss.github.io/api/tags/cloud-gaming.json
Cloud Workload Protection 5 https://yc-oss.github.io/api/tags/cloud-workload-protection.json
Coding Bootcamps 2 https://yc-oss.github.io/api/tags/coding-bootcamps.json
Collaboration 50 https://yc-oss.github.io/api/tags/collaboration.json
Commercial Space Launch 7 https://yc-oss.github.io/api/tags/commercial-space-launch.json
Community 61 https://yc-oss.github.io/api/tags/community.json
Compliance 57 https://yc-oss.github.io/api/tags/compliance.json
Computational Storage 1 https://yc-oss.github.io/api/tags/computational-storage.json
Computer Vision 64 https://yc-oss.github.io/api/tags/computer-vision.json
Construction 60 https://yc-oss.github.io/api/tags/construction.json
Consumer 194 https://yc-oss.github.io/api/tags/consumer.json
Consumer Finance 22 https://yc-oss.github.io/api/tags/consumer-finance.json
Consumer Health Services 103 https://yc-oss.github.io/api/tags/consumer-health-services.json
Consumer Products 10 https://yc-oss.github.io/api/tags/consumer-products.json
Conversational AI 30 https://yc-oss.github.io/api/tags/conversational-ai.json
Conversational Banking 2 https://yc-oss.github.io/api/tags/conversational-banking.json
COVID-19 4 https://yc-oss.github.io/api/tags/covid-19.json
Creator Economy 27 https://yc-oss.github.io/api/tags/creator-economy.json
CRISPR 2 https://yc-oss.github.io/api/tags/crispr.json
CRM 16 https://yc-oss.github.io/api/tags/crm.json
Crowdfunding 10 https://yc-oss.github.io/api/tags/crowdfunding.json
Crowdsourcing 3 https://yc-oss.github.io/api/tags/crowdsourcing.json
Crypto / Web3 94 https://yc-oss.github.io/api/tags/crypto-web3.json
Cryptocurrency 8 https://yc-oss.github.io/api/tags/cryptocurrency.json
Cryptography 3 https://yc-oss.github.io/api/tags/cryptography.json
Cultivated Meat 2 https://yc-oss.github.io/api/tags/cultivated-meat.json
Culture 2 https://yc-oss.github.io/api/tags/culture.json
Cultured Meat 3 https://yc-oss.github.io/api/tags/cultured-meat.json
Customer Service 20 https://yc-oss.github.io/api/tags/customer-service.json
Customer Success 26 https://yc-oss.github.io/api/tags/customer-success.json
Customer Support 31 https://yc-oss.github.io/api/tags/customer-support.json
Customization 2 https://yc-oss.github.io/api/tags/customization.json
Cyber Insurance 1 https://yc-oss.github.io/api/tags/cyber-insurance.json
Cybersecurity 31 https://yc-oss.github.io/api/tags/cybersecurity.json
DAO 4 https://yc-oss.github.io/api/tags/dao.json
Data Engineering 90 https://yc-oss.github.io/api/tags/data-engineering.json
Data Labeling 8 https://yc-oss.github.io/api/tags/data-labeling.json
Data Science 29 https://yc-oss.github.io/api/tags/data-science.json
Data Visualization 31 https://yc-oss.github.io/api/tags/data-visualization.json
Databases 27 https://yc-oss.github.io/api/tags/databases.json
Dating 8 https://yc-oss.github.io/api/tags/dating.json
Deep Learning 39 https://yc-oss.github.io/api/tags/deep-learning.json
Deepfake Detection 1 https://yc-oss.github.io/api/tags/deepfake-detection.json
DeFi 15 https://yc-oss.github.io/api/tags/defi.json
Delivery 54 https://yc-oss.github.io/api/tags/delivery.json
Dental 5 https://yc-oss.github.io/api/tags/dental.json
Design 23 https://yc-oss.github.io/api/tags/design.json
Design Tools 59 https://yc-oss.github.io/api/tags/design-tools.json
Developer Tools 488 https://yc-oss.github.io/api/tags/developer-tools.json
DevOps 45 https://yc-oss.github.io/api/tags/devops.json
DevSecOps 31 https://yc-oss.github.io/api/tags/devsecops.json
Diagnostics 32 https://yc-oss.github.io/api/tags/diagnostics.json
Digital Freight Brokerage 2 https://yc-oss.github.io/api/tags/digital-freight-brokerage.json
Digital Health 101 https://yc-oss.github.io/api/tags/digital-health.json
Diversity & Inclusion 5 https://yc-oss.github.io/api/tags/diversity-and-inclusion.json
Documents 33 https://yc-oss.github.io/api/tags/documents.json
Drones 20 https://yc-oss.github.io/api/tags/drones.json
Drug Delivery 6 https://yc-oss.github.io/api/tags/drug-delivery.json
Drug discovery 31 https://yc-oss.github.io/api/tags/drug-discovery.json
E-Commerce 46 https://yc-oss.github.io/api/tags/e-commerce.json
Edge Computing Semiconductors 2 https://yc-oss.github.io/api/tags/edge-computing-semiconductors.json
Edtech 16 https://yc-oss.github.io/api/tags/edtech.json
Education 172 https://yc-oss.github.io/api/tags/education.json
eLearning 49 https://yc-oss.github.io/api/tags/elearning.json
Election Tech 2 https://yc-oss.github.io/api/tags/election-tech.json
Electric Vehicles 24 https://yc-oss.github.io/api/tags/electric-vehicles.json
Electronics 6 https://yc-oss.github.io/api/tags/electronics.json
Email 23 https://yc-oss.github.io/api/tags/email.json
Emerging Markets 8 https://yc-oss.github.io/api/tags/emerging-markets.json
Energy 31 https://yc-oss.github.io/api/tags/energy.json
Energy Storage 12 https://yc-oss.github.io/api/tags/energy-storage.json
Enterprise 103 https://yc-oss.github.io/api/tags/enterprise.json
Enterprise Software 86 https://yc-oss.github.io/api/tags/enterprise-software.json
Entertainment 47 https://yc-oss.github.io/api/tags/entertainment.json
eSports 4 https://yc-oss.github.io/api/tags/esports.json
Fashion 21 https://yc-oss.github.io/api/tags/fashion.json
Feedback 7 https://yc-oss.github.io/api/tags/feedback.json
Femtech 6 https://yc-oss.github.io/api/tags/femtech.json
Fertility Tech 8 https://yc-oss.github.io/api/tags/fertility-tech.json
Finance 69 https://yc-oss.github.io/api/tags/finance.json
FinOps 29 https://yc-oss.github.io/api/tags/finops.json
Fintech 686 https://yc-oss.github.io/api/tags/fintech.json
Fitness 19 https://yc-oss.github.io/api/tags/fitness.json
Food 7 https://yc-oss.github.io/api/tags/food.json
Food & Beverage 25 https://yc-oss.github.io/api/tags/food-and-beverage.json
Food Service Robots & Machines 10 https://yc-oss.github.io/api/tags/food-service-robots-and-machines.json
Food Tech 48 https://yc-oss.github.io/api/tags/food-tech.json
Fraud Detection 8 https://yc-oss.github.io/api/tags/fraud-detection.json
Fraud Prevention 5 https://yc-oss.github.io/api/tags/fraud-prevention.json
Fundraising 3 https://yc-oss.github.io/api/tags/fundraising.json
Furniture 7 https://yc-oss.github.io/api/tags/furniture.json
Fusion Energy 1 https://yc-oss.github.io/api/tags/fusion-energy.json
Gaming 84 https://yc-oss.github.io/api/tags/gaming.json
Gardening 2 https://yc-oss.github.io/api/tags/gardening.json
Gene Therapy 13 https://yc-oss.github.io/api/tags/gene-therapy.json
Generative AI 265 https://yc-oss.github.io/api/tags/generative-ai.json
Genetic Engineering 3 https://yc-oss.github.io/api/tags/genetic-engineering.json
Genomics 27 https://yc-oss.github.io/api/tags/genomics.json
Geographic Information System 4 https://yc-oss.github.io/api/tags/geographic-information-system.json
Ghost Kitchens 11 https://yc-oss.github.io/api/tags/ghost-kitchens.json
GovTech 41 https://yc-oss.github.io/api/tags/govtech.json
GraphQL 3 https://yc-oss.github.io/api/tags/graphql.json
Grocery 29 https://yc-oss.github.io/api/tags/grocery.json
Hard Tech 82 https://yc-oss.github.io/api/tags/hard-tech.json
Hardware 108 https://yc-oss.github.io/api/tags/hardware.json
Health & Wellness 35 https://yc-oss.github.io/api/tags/health-and-wellness.json
Health Insurance 21 https://yc-oss.github.io/api/tags/health-insurance.json
Health Tech 160 https://yc-oss.github.io/api/tags/health-tech.json
Healthcare 185 https://yc-oss.github.io/api/tags/healthcare.json
Healthcare IT 26 https://yc-oss.github.io/api/tags/healthcare-it.json
Home Automation 3 https://yc-oss.github.io/api/tags/home-automation.json
Home Services 7 https://yc-oss.github.io/api/tags/home-services.json
Housing 19 https://yc-oss.github.io/api/tags/housing.json
HR Tech 69 https://yc-oss.github.io/api/tags/hr-tech.json
Human Resources 21 https://yc-oss.github.io/api/tags/human-resources.json
Hydrogen Energy 3 https://yc-oss.github.io/api/tags/hydrogen-energy.json
Identity 15 https://yc-oss.github.io/api/tags/identity.json
Immigration 5 https://yc-oss.github.io/api/tags/immigration.json
Income Share Agreements 4 https://yc-oss.github.io/api/tags/income-share-agreements.json
India 38 https://yc-oss.github.io/api/tags/india.json
Indoor Mapping 3 https://yc-oss.github.io/api/tags/indoor-mapping.json
Industrial 10 https://yc-oss.github.io/api/tags/industrial.json
Industrial Workplace Safety 4 https://yc-oss.github.io/api/tags/industrial-workplace-safety.json
Infrastructure 68 https://yc-oss.github.io/api/tags/infrastructure.json
Insurance 66 https://yc-oss.github.io/api/tags/insurance.json
International 7 https://yc-oss.github.io/api/tags/international.json
Investing 51 https://yc-oss.github.io/api/tags/investing.json
Investments 7 https://yc-oss.github.io/api/tags/investments.json
IoT 45 https://yc-oss.github.io/api/tags/iot.json
IoT Security 1 https://yc-oss.github.io/api/tags/iot-security.json
Kids 9 https://yc-oss.github.io/api/tags/kids.json
Kubernetes 15 https://yc-oss.github.io/api/tags/kubernetes.json
Lab-on-a-chip 1 https://yc-oss.github.io/api/tags/lab-on-a-chip.json
Latin America 21 https://yc-oss.github.io/api/tags/latin-america.json
Legal 24 https://yc-oss.github.io/api/tags/legal.json
LegalTech 46 https://yc-oss.github.io/api/tags/legaltech.json
Lending 18 https://yc-oss.github.io/api/tags/lending.json
Lidar 1 https://yc-oss.github.io/api/tags/lidar.json
Live 5 https://yc-oss.github.io/api/tags/live.json
Location-based 3 https://yc-oss.github.io/api/tags/location-based.json
Logistics 110 https://yc-oss.github.io/api/tags/logistics.json
Machine Learning 224 https://yc-oss.github.io/api/tags/machine-learning.json
Manufacturing 54 https://yc-oss.github.io/api/tags/manufacturing.json
Maritime 2 https://yc-oss.github.io/api/tags/maritime.json
Market Research 12 https://yc-oss.github.io/api/tags/market-research.json
Marketing 72 https://yc-oss.github.io/api/tags/marketing.json
Marketplace 304 https://yc-oss.github.io/api/tags/marketplace.json
Media 40 https://yc-oss.github.io/api/tags/media.json
Medical Devices 68 https://yc-oss.github.io/api/tags/medical-devices.json
Medical Robotics 4 https://yc-oss.github.io/api/tags/medical-robotics.json
Mental Health 9 https://yc-oss.github.io/api/tags/mental-health.json
Mental Health Tech 42 https://yc-oss.github.io/api/tags/mental-health-tech.json
Messaging 44 https://yc-oss.github.io/api/tags/messaging.json
Metaverse 8 https://yc-oss.github.io/api/tags/metaverse.json
Microfluidics 5 https://yc-oss.github.io/api/tags/microfluidics.json
Microinsurance 3 https://yc-oss.github.io/api/tags/microinsurance.json
Mining 4 https://yc-oss.github.io/api/tags/mining.json
ML 12 https://yc-oss.github.io/api/tags/ml.json
Mobility 11 https://yc-oss.github.io/api/tags/mobility.json
Monitoring 8 https://yc-oss.github.io/api/tags/monitoring.json
Music 21 https://yc-oss.github.io/api/tags/music.json
Nanomedicine 5 https://yc-oss.github.io/api/tags/nanomedicine.json
Nanosensors 4 https://yc-oss.github.io/api/tags/nanosensors.json
Nanotechnology 10 https://yc-oss.github.io/api/tags/nanotechnology.json
Navigation 2 https://yc-oss.github.io/api/tags/navigation.json
Neobank 49 https://yc-oss.github.io/api/tags/neobank.json
Networks 3 https://yc-oss.github.io/api/tags/networks.json
Neurotechnology 14 https://yc-oss.github.io/api/tags/neurotechnology.json
Next-gen Network Security 5 https://yc-oss.github.io/api/tags/next-gen-network-security.json
NFT 5 https://yc-oss.github.io/api/tags/nft.json
NLP 23 https://yc-oss.github.io/api/tags/nlp.json
No-code 28 https://yc-oss.github.io/api/tags/no-code.json
Nonprofit 28 https://yc-oss.github.io/api/tags/nonprofit.json
Note-taking 6 https://yc-oss.github.io/api/tags/note-taking.json
Notifications 2 https://yc-oss.github.io/api/tags/notifications.json
Oncology 20 https://yc-oss.github.io/api/tags/oncology.json
Open Source 154 https://yc-oss.github.io/api/tags/open-source.json
Operations 22 https://yc-oss.github.io/api/tags/operations.json
Payments 132 https://yc-oss.github.io/api/tags/payments.json
Payroll 15 https://yc-oss.github.io/api/tags/payroll.json
Pediatrics 3 https://yc-oss.github.io/api/tags/pediatrics.json
Personalization 7 https://yc-oss.github.io/api/tags/personalization.json
Plant-based Meat 2 https://yc-oss.github.io/api/tags/plant-based-meat.json
Podcasts 8 https://yc-oss.github.io/api/tags/podcasts.json
Primary Care 8 https://yc-oss.github.io/api/tags/primary-care.json
Privacy 16 https://yc-oss.github.io/api/tags/privacy.json
Procurement 14 https://yc-oss.github.io/api/tags/procurement.json
Productivity 138 https://yc-oss.github.io/api/tags/productivity.json
Proptech 84 https://yc-oss.github.io/api/tags/proptech.json
Psychedelics 2 https://yc-oss.github.io/api/tags/psychedelics.json
Quantum Computing 4 https://yc-oss.github.io/api/tags/quantum-computing.json
Radar 2 https://yc-oss.github.io/api/tags/radar.json
Real Estate 74 https://yc-oss.github.io/api/tags/real-estate.json
Recommendation System 3 https://yc-oss.github.io/api/tags/recommendation-system.json
Recruiting 59 https://yc-oss.github.io/api/tags/recruiting.json
Referrals 2 https://yc-oss.github.io/api/tags/referrals.json
Regtech 13 https://yc-oss.github.io/api/tags/regtech.json
Reinforcement Learning 8 https://yc-oss.github.io/api/tags/reinforcement-learning.json
Remittances 4 https://yc-oss.github.io/api/tags/remittances.json
Remote 7 https://yc-oss.github.io/api/tags/remote.json
Remote Work 18 https://yc-oss.github.io/api/tags/remote-work.json
Renewable Energy 15 https://yc-oss.github.io/api/tags/renewable-energy.json
Restaurant Tech 10 https://yc-oss.github.io/api/tags/restaurant-tech.json
Retail 48 https://yc-oss.github.io/api/tags/retail.json
Retail Tech 20 https://yc-oss.github.io/api/tags/retail-tech.json
Reviews 3 https://yc-oss.github.io/api/tags/reviews.json
Ridesharing 3 https://yc-oss.github.io/api/tags/ridesharing.json
Robotic Process Automation 25 https://yc-oss.github.io/api/tags/robotic-process-automation.json
Robotic Surgery 2 https://yc-oss.github.io/api/tags/robotic-surgery.json
Robotics 70 https://yc-oss.github.io/api/tags/robotics.json
Rocketry 3 https://yc-oss.github.io/api/tags/rocketry.json
SaaS 1081 https://yc-oss.github.io/api/tags/saas.json
Sales 97 https://yc-oss.github.io/api/tags/sales.json
Sales Enablement 29 https://yc-oss.github.io/api/tags/sales-enablement.json
Satellites 18 https://yc-oss.github.io/api/tags/satellites.json
Scheduling 11 https://yc-oss.github.io/api/tags/scheduling.json
Search 18 https://yc-oss.github.io/api/tags/search.json
Security 84 https://yc-oss.github.io/api/tags/security.json
Security Orchestration, Automation and Response (SOAR) 1 https://yc-oss.github.io/api/tags/security-orchestration-automation-and-response-(soar).json
Self-Driving Vehicles 6 https://yc-oss.github.io/api/tags/self-driving-vehicles.json
Semiconductors 7 https://yc-oss.github.io/api/tags/semiconductors.json
SEO 2 https://yc-oss.github.io/api/tags/seo.json
Skincare 1 https://yc-oss.github.io/api/tags/skincare.json
Sleep Tech 9 https://yc-oss.github.io/api/tags/sleep-tech.json
Small Modular Reactors 2 https://yc-oss.github.io/api/tags/small-modular-reactors.json
Smart Clothing 5 https://yc-oss.github.io/api/tags/smart-clothing.json
Smart Home Assistants 6 https://yc-oss.github.io/api/tags/smart-home-assistants.json
Smart Locks 1 https://yc-oss.github.io/api/tags/smart-locks.json
SMB 13 https://yc-oss.github.io/api/tags/smb.json
SMS 7 https://yc-oss.github.io/api/tags/sms.json
Social 68 https://yc-oss.github.io/api/tags/social.json
Social Media 27 https://yc-oss.github.io/api/tags/social-media.json
Social Network 20 https://yc-oss.github.io/api/tags/social-network.json
Solar Power 15 https://yc-oss.github.io/api/tags/solar-power.json
Space Exploration 17 https://yc-oss.github.io/api/tags/space-exploration.json
Speech Recognition 3 https://yc-oss.github.io/api/tags/speech-recognition.json
Sports Tech 19 https://yc-oss.github.io/api/tags/sports-tech.json
Stocks 4 https://yc-oss.github.io/api/tags/stocks.json
Subscriptions 39 https://yc-oss.github.io/api/tags/subscriptions.json
Supply Chain 72 https://yc-oss.github.io/api/tags/supply-chain.json
Sustainability 14 https://yc-oss.github.io/api/tags/sustainability.json
Sustainable Agriculture 2 https://yc-oss.github.io/api/tags/sustainable-agriculture.json
Sustainable Fashion 9 https://yc-oss.github.io/api/tags/sustainable-fashion.json
Sustainable Tourism 3 https://yc-oss.github.io/api/tags/sustainable-tourism.json
Swarm Robotics 1 https://yc-oss.github.io/api/tags/swarm-robotics.json
Synthetic Biology 30 https://yc-oss.github.io/api/tags/synthetic-biology.json
Talent Acquisition 6 https://yc-oss.github.io/api/tags/talent-acquisition.json
Team Collaboration 10 https://yc-oss.github.io/api/tags/team-collaboration.json
Telecommunications 22 https://yc-oss.github.io/api/tags/telecommunications.json
Telehealth 24 https://yc-oss.github.io/api/tags/telehealth.json
Telemedicine 29 https://yc-oss.github.io/api/tags/telemedicine.json
Therapeutics 44 https://yc-oss.github.io/api/tags/therapeutics.json
Ticketing 4 https://yc-oss.github.io/api/tags/ticketing.json
Time Series 4 https://yc-oss.github.io/api/tags/time-series.json
Trading 7 https://yc-oss.github.io/api/tags/trading.json
Transportation 39 https://yc-oss.github.io/api/tags/transportation.json
Travel 45 https://yc-oss.github.io/api/tags/travel.json
Trust & Safety 6 https://yc-oss.github.io/api/tags/trust-and-safety.json
Unmanned Vehicle 3 https://yc-oss.github.io/api/tags/unmanned-vehicle.json
Vertical Farming 4 https://yc-oss.github.io/api/tags/vertical-farming.json
Video 78 https://yc-oss.github.io/api/tags/video.json
Virtual Reality 14 https://yc-oss.github.io/api/tags/virtual-reality.json
VR Health 2 https://yc-oss.github.io/api/tags/vr-health.json
Warehouse Management Tech 14 https://yc-oss.github.io/api/tags/warehouse-management-tech.json
Weather 3 https://yc-oss.github.io/api/tags/weather.json
Web Development 19 https://yc-oss.github.io/api/tags/web-development.json
Women's Health 13 https://yc-oss.github.io/api/tags/women's-health.json
Workflow Automation 54 https://yc-oss.github.io/api/tags/workflow-automation.json

📀 Schema

Each endpoint (with the exception of meta.json) returns an array of objects. Each object has the following properties:

Property Type Description
id number The company's ID decided by Y Combinator
name string The company's name
slug string The company's human-readable slug
former_names string[] The company's former names, if the company was renamed
small_logo_thumb_url string The URL of the company's logo as a square hosted by Y Combinator
website string The company's website URL
all_locations string The company's locations separated by colons (;)
long_description string The company's long description
one_liner string The company's one-liner description
team_size number The company's team size
highlight_black boolean Whether the company is highlighted for Black founders
highlight_latinx boolean Whether the company is highlighted for Hispanic/Latino founders
highlight_women boolean Whether the company is highlighted for women founders
industry string The company's industry
subindustry string The company's subindustry
launched_at number The company's launch date as a Unix timestamp
tags string[] The company's tags
top_company boolean Whether the company is a top company
isHiring boolean Whether the company is hiring
nonprofit boolean Whether the company is a nonprofit
batch string The company's batch
status string The company's status
industries string[] The company's industries
regions string[] The company's regions
stage string The company's stage
app_video_public boolean Whether the company's app video is public
demo_day_video_public boolean Whether the company's demo day video is public
app_answers object The company's app answers
question_answers boolean Whether the company's question answers are public
url string The company's URL on the Y Combinator website
api string The company's API endpoint from this repository

For example, the airbnb.json endpoint returns the following object:

{
  "id": 271,
  "name": "Airbnb",
  "slug": "airbnb",
  "former_names": [],
  "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3e9a0092bee2ccf926e650e59c06503ec6b9ee65.png",
  "website": "http://airbnb.com",
  "all_locations": "San Francisco, CA, USA",
  "long_description": "Founded in August of 2008 and based in San Francisco, California, Airbnb is a trusted community marketplace for people to list, discover, and book unique accommodations around the world — online or from a mobile phone. Whether an apartment for a night, a castle for a week, or a villa for a month, Airbnb connects people to unique travel experiences, at any price point, in more than 33,000 cities and 192 countries. And with world-class customer service and a growing community of users, Airbnb is the easiest way for people to monetize their extra space and showcase it to an audience of millions.  \r\n\r\nNo global movement springs from individuals. It takes an entire team united behind something big. Together, we work hard, we laugh a lot, we brainstorm nonstop, we use hundreds of Post-Its a week, and we give the best high-fives in town. Headquartered in San Francisco, we have satellite offices in Dublin, London, Barcelona, Paris, Milan, Copenhagen, Berlin, Moscow, São Paolo, Sydney, and Singapore.",
  "one_liner": "Book accommodations around the world.",
  "team_size": 6132,
  "highlight_black": false,
  "highlight_latinx": false,
  "highlight_women": false,
  "industry": "Consumer",
  "subindustry": "Consumer -> Travel, Leisure and Tourism",
  "launched_at": 1326790856,
  "tags": ["Marketplace", "Travel"],
  "tags_highlighted": [],
  "top_company": true,
  "isHiring": false,
  "nonprofit": false,
  "batch": "W09",
  "status": "Public",
  "industries": ["Consumer", "Travel, Leisure and Tourism"],
  "regions": ["United States of America", "America / Canada"],
  "stage": "Growth",
  "app_video_public": false,
  "demo_day_video_public": false,
  "app_answers": null,
  "question_answers": false,
  "url": "https://www.ycombinator.com/companies/airbnb",
  "api": "https://yc-oss.github.io/api/batches/w09/airbnb.json"
}

Here are first 10 companies from the Top Companies API (https://yc-oss.github.io/api/companies/top.json):

Logo Name One-liner
PlanGrid Mobile applications for the construction industry.
Gusto Provides growing businesses with everything to take care of their team.
Matterport Turn physical objects and environments into 3D models in seconds.
Amplitude Digital Analytics Platform.
Sendwave Instant, no fee international remittances.
Codecademy The leading online learning platform for technical skills.
Segment Software and APIs to collect, clean, and control customer data.
HelloSign eSignature software for small and mid-market businesses.
Fivestars Customer loyalty and payments platform for small businesses.
GOAT Group Platform for the greatest products from the past, present and future.