# Clearstream API Platform (Playground)

**Canonical:** https://apis.io/apis/clearstream/api-platform/  
**Provider:** Clearstream — https://apis.io/providers/clearstream/  
**Base URL:** https://api.clearstream.com  
**Documentation:** https://www.clearstream.com/clearstream-en/res-library/connectivity/clearstream-api-services-2916788

Clearstream API Platform (Playground) is one of 8 APIs that [Clearstream](https://apis.io/providers/clearstream/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include API Platform, Mutual TLS, OAuth 2.0, and Sandbox. The published artifact set on APIs.io includes API documentation, a getting-started guide, and authentication docs.

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.

## Machine-readable artifacts (8)

- **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
- **DeveloperPortal** — https://console.developer.deutsche-boerse.com
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/clearstream/refs/heads/main/authentication/clearstream-authentication.yml
- **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

## Other Clearstream APIs (7)

- [Clearstream Xact via SWIFT](https://apis.io/apis/clearstream/xact-via-swift/)
- [Clearstream Xact File Transfer](https://apis.io/apis/clearstream/xact-file-transfer/)
- [Clearstream Xact Web Portal](https://apis.io/apis/clearstream/xact-web-portal/)
- [Clearstream CASCADE (CSD)](https://apis.io/apis/clearstream/cascade/)
- [Clearstream Vestima](https://apis.io/apis/clearstream/vestima/)
- [Clearstream CmaX (Triparty Collateral)](https://apis.io/apis/clearstream/cmax/)
- [Clearstream Xact User Management (SCIM 2.0)](https://apis.io/apis/clearstream/scim2-user-management/)

## Tags

API Platform, Mutual TLS, OAuth 2.0, Sandbox

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/clearstream/api-platform/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/clearstream/.