Explore APIs
16,395 OpenAPI descriptions. Read the docs, compare revisions or generate a client.
Collections
New this month
6,972 APIs added in the last 30 days.
The biggest APIs
The APIs with the most operations.
Most active
Most new revisions in the last 90 days.
All APIs
16,395- AR31 operations1 revisionArroyo REST API@arroyosystems/arroyo-rest-api
Streaming pipelines: create SQL pipelines, manage connection profiles and tables, run jobs and UDFs
- NE61 operations24 revisionsNex Developer API@nex/nex-developer-api
Nex data: manage objects, records, lists, tasks, notes and AI-driven context search
- OP388 operations107 revisionsOpenAI API@omnistack-sh/openai-api
AI models: generate text and speech, transcribe audio, embed text, and manage files and batches
- OP388 operations594 revisionsOpenAI API@openai/openai-api-4
AI models: generate text, speech and embeddings, manage files, batches and fine-tuning jobs
- WI10 operations1 revisionWingbits Customer API@wingbits/wingbits-customer-api
Flight tracking: live aircraft positions, flight search, flight paths, aircraft details and GPS interference
- ZA98 operations1 revisionZahlo Merchant API@zahlo/zahlo-merchant-api
Payments: accept checkout, payment links, subscriptions, invoices, refunds and reconciliation exports
- WH233 operations1 revisionWhispa API@whispa/whispa-api
Contact-center platform: manage calls, campaigns, scenarios, QA scorecards and CRM lookups
- JO7 operations81 revisionsJoliGEN server@jolibrain/joligen-server
Image-to-image GAN: start, monitor and delete training runs, run inference, manage server files
- TE465 operations190 revisionsTessl API@tessl/tessl-api
Agent skills, tiles and eval runs: manage workspaces, projects, orgs, API keys and code reviews
- RU39 operations21 revisionsRush API@getrush/rush-api
Agents: start sessions, stream events, read transcripts and artifacts, manage secrets and keys
- AC13 operations543 revisionsAccounts@rdstationmentoria/accounts
Account management: members, invitations, roles, workspaces and subscriptions
- MA122 operations538 revisionsManagem API@managem/managem-api
Marketplace: search listings, manage baskets, orders, reviews, disputes and seller listings
- BI528 operations91 revisionsBird API@messagebird/bird-api
Email, SMS, WhatsApp and realtime messaging: send messages, manage contacts and templates, and track delivery stats
- ST158 operations122 revisionsStats API for the Battlefield series@gametools/stats-api-for-the-battlefield-series
Battlefield games: look up player stats, profiles and server lists across the series
- SO300 operations14 revisionsSocial Fetch Public API@socialfetch/social-fetch-public-api
Social media data: fetch profiles, posts and search results across 12 platforms via one API
- KI772 operations627 revisionsKibana API@elastic/kibana-apis
Admin: manage alerting rules, cases, connectors, data views, APM and saved objects
- AG23 operations535 revisionsAgents@rdstationmentoria/agents
CRM: manage AI assistants, leads, custom fields, conversations and channels
- ST209 operations591 revisionsStream API@getstream/stream-api
Chat: channels, messages, members, moderation blocklists and campaigns
- VI14 operations20 revisionsVisor Public API@visor/visor-public-api
US vehicle listings: search, count and price-aggregate dealer inventory, look up VINs and specs
- RO118 operations22 revisionsRodz API@rodz/rodz-api
Lead generation: create intent signals, watchlists, and enrich contacts, companies and emails
- GR206 operations125 revisionsGrid API@lightsparkdev/grid-api
Payments: move money across currencies, manage customers, KYC checks, accounts and statements
- PH333 operations482 revisionsPhoenix API by Phone.com@phone/phoenix-api-by-phone-com
Telephony: manage calls, numbers, SMS, voicemail, faxes, devices and call logs
- SE4 operations151 revisionsSequences@hubspot/automation-sequences
Sales automation: list outreach flows, enroll contacts and check their enrollment status
- AD27 operations13 revisionsAdaptive API@adaptivesecurity/adaptive-api
Security awareness training, phishing simulations, user and group sync, audit logs and email security events
Showing 1 to 24 of 16,395
Load more