List dated API versions
Every dated version this deployment serves, oldest first.
Send one as X-Mesh-Version to pin a request, or store it on an API key to pin
every request that key makes. Omit it and you get the baseline entry.
An unsupported or malformed value is rejected with 400 invalid_api_version
rather than falling back silently, so a typo cannot leave you believing you are
pinned when you are not.
Authorizations
Enter your MeshAPI key (rsk_...) — sent as Authorization: Bearer <key>.
Headers
Dated version of the API contract to pin this request to. Omit it and the request is served under 2026-08 — the oldest supported version, so an existing integration is never moved by a release. A malformed or unsupported value is rejected with 400 invalid_api_version rather than falling back silently. The version actually served is echoed as X-Mesh-Version on every response, including errors.
2026-08 Response
Successful Response
The value to send as X-Mesh-Version, e.g. 2026-08.
ga | deprecated | sunset.
ISO date this version became available.
True for the version a caller gets with no X-Mesh-Version header and no stored pin. This is the OLDEST supported version, so an existing integration is never moved by a release.
True for the newest released version. Note this is NOT the default — pin it explicitly to receive it.
ISO date this version was deprecated, or null. Feeds the Deprecation response header.
ISO date this version stops being served, or null. Feeds the Sunset response header.
Migration guide for leaving this version, or null.