API registry
Published OpenAPI specifications with version history and changelogs — official specs mirrored from their owners, and APIs published by organisations on spec0.
All published APIs
Transfer webhooks
3-5b85d5a100MirroredAdyen
Adyen sends webhooks to inform your system about incoming and outgoing transfers in your platform.
Updated mirrored by Adyen
Adyen Checkout API v72
72-a9866a197MirroredAdyen
Adyen's online-payments API — sessions, payments, modifications. Mirrored from Adyen's official OpenAPI repository.
Updated mirrored by Adyen
Amazon Selling Partner API — Orders
v0100MirroredAmazon
Order retrieval and management for Amazon sellers. Mirrored from the official Selling Partner API models repository (Orders v0).
Updated mirrored by Amazon
Recruitment Registry
1.095MirroredAmida Technology Solutions
Survey Based Match of Participants to Clinical Trials
Updated mirrored by Amida Technology Solutions
AAP on Azure - Deployment Driver API
1.098MirroredAnsible
Mirrored from Ansible's official OpenAPI specification.
Updated mirrored by Ansible
HRIS API
10.72.199MirroredApideck Libraries
Welcome to the HRIS API.
Updated mirrored by Apideck Libraries
arista.softwaremanagement.v1 Resources
CV_RESOURCE_VER_DEV95MirroredArista Networks
A successful response.
Updated mirrored by Arista Networks
bunq API
1.0100Mirroredbunq
***UPDATE:*** *We have released a beta version of the new bunq API documentation.* ***NOTICE:*** *We have updated the sandbox base url to `https://public-api.sandbox.bunq.com/v1/`.
Updated mirrored by bunq
Rosetta
1.5.199MirroredCoinbase
Build Once. Integrate Your Blockchain Everywhere.
Updated mirrored by Coinbase
Discord HTTP API
10-8ce345099MirroredDiscord
Channels, guilds, messages, and interactions. Mirrored from Discord's official API specification (published as work-in-progress by Discord).
Updated mirrored by Discord
Docusign eSignature REST API
v2.187MirroredDocusign Inc.
The Docusign eSignature REST API provides you with a powerful, convenient, and simple Web services API for interacting with Docusign.
Updated mirrored by Docusign Inc.
Zevvy app API
1.0.0100MirroredBuildingPro Suites
API to access and configure the Zevvy app
Updated mirrored by BuildingPro Suites
Fire Financial Services Business API
1.0-9326fd099MirroredFire Financial Services
The fire.com API allows you to deeply integrate Business Account features
Updated mirrored by Fire Financial Services
Flickr API Schema
1.0.074MirroredFlickr
A subset of Flickr's API defined in Swagger format.
Updated mirrored by Flickr
Google Maps Platform APIs
1.22.398MirroredGoogle
Directions, distance matrix, geocoding, places, and more. Mirrored from the official Google Maps Platform OpenAPI specification (pinned release).
Updated mirrored by Google
Hivelocity API for Partners
2.093MirroredHivelocity
You have not been granted permission to complete this action.
Updated mirrored by Hivelocity
Intercom API v2.16
2.16-0d9d62b96MirroredIntercom
Contacts, conversations, tickets, and messaging. Mirrored from Intercom's official OpenAPI repository.
Updated mirrored by Intercom
smartCARS 3 Public API
1.0.295MirroredTFDi Design
Get the current API version
Updated mirrored by TFDi Design
kusk-gateway-api
1.0.070MirroredTestkube
This is the Kusk Gateway Management API
Updated mirrored by Testkube
AIDE Gateway
1.0.099MirroredLandingAI
AIDE Gateway — proxy surface + Temporal job surface.
Updated mirrored by LandingAI
Agent Protocol
0.1.699MirroredLangChain
A run is an invocation of an agent, optionally, on a thread.
Updated mirrored by LangChain
photon-indexer
0.50.096MirroredLight Protocol
Solana indexer for general compression
Updated mirrored by Light Protocol
Mailgun API
3.0.099MirroredMailgun
Email sending, domains, routes, and validation. Mirrored from Mailgun's official OpenAPI document.
Updated mirrored by Mailgun
Blackbeard API
1.0.099MirroredMeetic
A REST API served from Blackbeard.
Updated mirrored by Meetic
Mermaid Chart
0.1.099MirroredMermaid
These are the subset of MermaidChart APIs that's required to create plugins to display diagrams for users.
Updated mirrored by Mermaid
Netlify's API documentation
2.62.088MirroredNetlify
Netlify is a hosting service for the programmable web.
Updated mirrored by Netlify
Okta Admin Management API
2026.42.198MirroredOkta
Users, groups, apps, and policies for Okta orgs. Mirrored from Okta's official management OpenAPI specification (minimal variant).
Updated mirrored by Okta
PayPal Orders API v2
2.3299MirroredPayPal
Create, update, and capture orders — PayPal's flagship checkout surface. Mirrored from PayPal's official REST API specifications.
Updated mirrored by PayPal
PocketSmith
2.095MirroredPocketSmith
If you want to build a tool just for yourself, be it a desktop widget to display your balances or a tool to import transactions from a bank without a bank feed, you can use our developer keys feature.
Updated mirrored by PocketSmith
Twilio SendGrid v3 Mail API
1.0.098MirroredSendGrid
Transactional email sending (Mail Send v3). Mirrored from the official sendgrid-oai specifications.
Updated mirrored by SendGrid
seven
1.0.099Mirroredsms77io
seven.io offers you the possibility to send SMS, RCS, text-to-speech messages, perform home register lookups, mobile number portability status lookups, phone number formats and much more.
Updated mirrored by sms77io
spec0-platform
1.20.093spec0-posthog
Updated
SpecStory Cloud API
0.1.099MirroredSpecStory
## **Overview** SpecStory Cloud provides a REST API for core CRUD operations for projects and AI chat sessions, and a GraphQL API for querying.
Updated mirrored by SpecStory
Square Connect API
2.0-8f6546099MirroredSquare
The full Square commerce surface — payments, orders, catalog, customers — in one bundled specification. Mirrored from Square's official spec.
Updated mirrored by Square
Stripe API
2026-09-30.endive-585b58199MirroredStripe
Payments infrastructure — charges, customers, subscriptions, invoicing. Mirrored from Stripe's official OpenAPI specification.
Updated mirrored by Stripe
openweather-spec
0.1.098tempora
Updated
Discovery API
v247MirroredTicketmaster Tech
The Ticketmaster Discovery API allows you to search for events, attractions, or venues.
Updated mirrored by Ticketmaster Tech
Twilio - Voice
1.0.0100MirroredTwilio
The absolute URL of the resource.
Updated mirrored by Twilio
Twilio API (v2010)
1.0.0-052b29499MirroredTwilio
Twilio's core REST API — messaging, voice, accounts. Mirrored from Twilio's official OpenAPI (twilio-oai).
Updated mirrored by Twilio
Gateway REST API
1.982MirroredTyk Technologies
Mirrored from Tyk Technologies's official OpenAPI specification.
Updated mirrored by Tyk Technologies
Up API
v198MirroredUp
The Up API gives you programmatic access to your balances and transaction data.
Updated mirrored by Up
UPS Shipping API
2026-10-2694MirroredUPS
Create and manage shipments on the UPS network. Mirrored from the official UPS API documentation repository.
Updated mirrored by UPS
Velo Payments APIs
2.38.18324MirroredVelo Payments Open API
## Terms and Definitions
Updated mirrored by Velo Payments Open API
Xero Assets API
19.1.0100MirroredXero Developer API
The Assets API exposes fixed asset related functions of the Xero Accounting application and can be used for a variety of purposes such as creating assets, retrieving asset valuations etc.
Updated mirrored by Xero Developer API
Looking for an organisation that isn't listed? Unlisted registries open by slug.