Changelog - Mesh API

Subscribe at /changelog/rss.xml to hear about deprecations and breaking changes without checking back. Every entry that removes or changes an existing shape is tagged Deprecated or Changed — see API versioning for what those mean and how to pin a version so a change cannot reach your code unannounced.

AddedAPI

Dated API versions

Pin the API contract to a date

Mesh now versions its public contract by date, in a request header. The current version is 2026-08:

curl https://api.meshapi.ai/v1/models \
  -H "Authorization: Bearer rsk_..." \
  -H "X-Mesh-Version: 2026-08"

A pinned request states which response shapes your code can parse, so a future change to those shapes cannot reach it. /v1 stays exactly where it is — it is a namespace, not a version, and there is no /v2 planned.You do not have to do anything. Sending no header gets you the oldest supported version, so publishing a new one never moves existing traffic.

GET /v1/api-versions lists every version served, and which one is the default.
An API key can carry a pin, so code you do not control still gets a fixed contract — set it on the key’s API Version field under API Keys.
Every response echoes X-Mesh-Version with the version that served it.
A version Mesh does not serve is rejected with 400 invalid_api_version rather than silently downgraded, so a typo’d pin fails immediately instead of quietly serving you something else.

When a version is eventually retired, its responses will carry standard Deprecation and Sunset headers first, so monitoring can notice before anyone reads a page. Nothing is deprecated today.Full detail: API versioning.

AddedAudioSDKs

Audio translations, SDK releases

Translate audio to English

POST /v1/audio/translations accepts audio in any language and returns the speech translated to English. This is distinct from the transcribe-and-translate helper at POST /v1/audio/transcriptions/translate.

client.audio.audio_translate(audio_bytes, AudioTranslationsParams(model="..."), filename="...")

client.audio.translations(audioBytes, { model: "..." }, { filename: "..." });

client.Audio.Translations(ctx, audioBytes, "filename.mp3", meshapi.AudioTranslationParams{Model: "..."})

model is required — check GET /v1/models for models that support translation.

SDK releases

Python 0.1.8 — audio translations.
Go v0.1.9 — audio translations.

​Pin the API contract to a date

​Translate audio to English

​SDK releases

Pin the API contract to a date

Translate audio to English

SDK releases