Clearstream

Clearstream API Platform (Playground)

The Clearstream API Platform is the REST tier of ClearstreamXact, reachable at https://api.clearstream.com with a pre-production twin at https://api-t2s-test.clearstream.com. It issues JWT bearer tokens from /authmanager/oauth2/access_token using an OAuth 2.0 resource-owner password grant that Clearstream has hardened by requiring mutual TLS on every call, with the client certificate Common Name bound to the Xact user id in the token subject. The free Clearstream API Playground (scope ocapi-playground-v1, endpoints /playground/v1/info and /playground/v1/echo) is the recommended first integration and the resource Clearstream asks new clients to request during onboarding. Access is not self-service: a client enables the service for its Xact Organisation Unit by SWIFT MT599 message to CEDELULLXXX.

GitHub

Documentation

📖
Documentation
https://www.clearstream.com/clearstream-en/res-library/connectivity/clearstream-api-services-2916788
📖
GettingStarted
https://www.clearstream.com/caas/v1/media/2934048/data/3fa3fec668d8dd198e9bed4df879b26b/api-developer-guide.pdf
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/authentication/clearstream-authentication.yml

Other Resources

🔗
DeveloperPortal
https://console.developer.deutsche-boerse.com
🔗
OAuthScopes
https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/scopes/clearstream-scopes.yml
🔗
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/errors/clearstream-problem-types.yml
🔗
Sandbox
https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/sandbox/clearstream-sandbox.yml
🔗
X-MCPServerCandidate
https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/mcp/clearstream-mcp.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/api-platform"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑ 
aid: clearstream:api-platform
name: Clearstream API Platform (Playground)
tags:
- API Platform
- Mutual TLS
- OAuth 2.0
- Sandbox
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.clearstream.com/clearstream-en/res-library/connectivity/clearstream-api-services-2916788
baseURL: https://api.clearstream.com
properties:
- url: https://www.clearstream.com/clearstream-en/res-library/connectivity/clearstream-api-services-2916788
  type: Documentation
- url: https://www.clearstream.com/caas/v1/media/2934048/data/3fa3fec668d8dd198e9bed4df879b26b/api-developer-guide.pdf
  type: GettingStarted
- url: https://console.developer.deutsche-boerse.com
  type: DeveloperPortal
- url: authentication/clearstream-authentication.yml
  type: Authentication
- url: scopes/clearstream-scopes.yml
  type: OAuthScopes
- url: errors/clearstream-problem-types.yml
  type: ErrorCatalog
- url: sandbox/clearstream-sandbox.yml
  type: Sandbox
- url: mcp/clearstream-mcp.yml
  type: X-MCPServerCandidate
description: 'The Clearstream API Platform is the REST tier of ClearstreamXact, reachable at https://api.clearstream.com
  with a pre-production twin at https://api-t2s-test.clearstream.com. It issues JWT bearer tokens from
  /authmanager/oauth2/access_token using an OAuth 2.0 resource-owner password grant that Clearstream has
  hardened by requiring mutual TLS on every call, with the client certificate Common Name bound to the
  Xact user id in the token subject. The free Clearstream API Playground (scope ocapi-playground-v1, endpoints
  /playground/v1/info and /playground/v1/echo) is the recommended first integration and the resource Clearstream
  asks new clients to request during onboarding. Access is not self-service: a client enables the service
  for its Xact Organisation Unit by SWIFT MT599 message to CEDELULLXXX.'