Explore APIs
16,231 OpenAPI descriptions. Read the docs, compare revisions or generate a client.
Collections
New this month
6,808 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
16,231- FO27 operations26 revisionsforms@nextcloud/forms
Questionnaires: build question sets, share them, and collect and export responses
- AI46 operations70 revisionsAivisSpeech Engine@aivis-project/aivisspeech-engine
Speech synthesis: create audio queries, manage voice models and speakers, and synthesize multiple audio clips
- PR44 operations99 revisionsProxy Manager@brightdata/proxy-manager
Proxy servers: create and manage proxy ports, IP bans, whitelists, zones and sessions
- WE125 operations2 revisionsWeaviate REST API@weaviate/weaviate-rest-api
Vector database: store objects, search collections, run backups, manage users and roles
- SC262 operations286 revisionsScanopy API@scanopy/scanopy-api
Network discovery: scan hosts, services and ports, map subnets, VLANs and topology
- ST17 operations2 revisionsStatOrigin API@statorigin/statorigin-api
Statistics: query data points with source provenance, indicators, regions and industries, plus exports
- CU13 operations260 revisionsCustom Objects@hubspot/crm-custom-objects
CRM: create, read, update, search and merge custom object records
- TR283 operations53 revisionsTraceability Schemas@w3c/traceability-schemas
Supply-chain documents: agriculture inspections, bills of lading, CBP import entries and verifiable credentials
- PA136 operations124 revisionsParadex REST API@tradeparadex/paradex-rest-api-2
Trading API: place and cancel orders, RFQs, block trades, vaults, algo orders, and account balances
- GI1,257 operations396 revisionsGitHub v3 REST API@github/rest
Code hosting: repos, pull requests, issues, Actions, Gists, security alerts and Git data
- CL3,766 operations1,419 revisionsCloudflare API@cloudflare/cloudflare
Networking, security and edge services: manage DNS, tunnels, Workers, WAF rules, Access policies and Radar threat data
- KO980 operations69 revisionsKonnect API@kong/konnect-api
Platform: control planes, cloud gateway networks, AI gateways, event gateways, teams, and API products
- SA152 operations76 revisionsSafe Client Gateway@safe-global/safe-client-gateway
Multisig wallets: query Safe balances, positions, transactions, owners and decode transaction data
- OP146 operations605 revisionsOpenRouter API@openrouterteam/openrouter-api
LLM gateway: chat, embeddings, images, audio, plus keys, credits, batches and analytics
- PE49 operations70 revisionsPersonal Artificial Intelligence Operating System (pAI-OS) API@pai-os/personal-artificial-intelligence-operating-system-pai-os-api
Personal AI OS admin: install abilities, manage assets, personas, users, downloads and share links
- WI947 operations527 revisionsWindmill API@windmill/windmill-api
Workflow automation: run scripts and flows, schedule jobs, and wire up triggers for HTTP, Kafka, SQS and more
- TE1,509 operations337 revisionsTelnyx API@team-telnyx/telnyx-api-2
Telephony: place calls, send SMS and MMS, manage phone numbers, SIP trunks and conferences
- CO14 operations272 revisionsCommerce Payments@hubspot/crm-commerce-payments
CRM: create, read, search and batch-manage commerce payment records and their associations
- OP17 operations69 revisionsOpenTrials API@opentrials/opentrials-api
Clinical trials: search trials, publications, conditions, interventions and FDA application records
- SC6 operations145 revisionsScheduler Meetings@hubspot/scheduler-meetings
Meeting scheduling pages: list availability, book meetings and create calendar events
- AN477 operations902 revisionsAnyAPI@getanyapi-com/anyapi
Data APIs for social, e-commerce, ads, SEO and lead data: one wallet, pay per call in USD
- GI1,554 operations387 revisionsGitHub v3 REST API@github/enterprise-cloud
Code hosting: manage repositories, pull requests, issues, Actions, gists and Git data
- IN22 operations131 revisionsInference Gateway API@inference-gateway/inference-gateway-api
AI gateway: route chat, image, audio, and video requests to many LLM providers
- KO1,107 operations136 revisionsKonnect API - Go SDK@kong/konnect-api-go-sdk
Platform management: control planes, teams, users and roles, plus gateway configs, billing and event policies
Showing 1 to 24 of 16,231
Load more