Acast · Rate Limits

Acast Rate Limits

The Acast Publishing API documents a single published rate limit of 60 requests per minute. Beyond the request-rate cap, episode creation is bounded by a maximum audio file size of 150 MB (MP3 recommended at 128 kbps). API keys are scoped to a user and only reach the shows assigned to that user, which further bounds the data any single key can act on.

Acast Rate Limits is the machine-readable rate-limit profile for Acast on the APIs.io network, in the API Commons Rate Limits shape.

It captures 3 rate-limit definitions, measuring requests, bytes, and shows.

An exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Podcasting, Publishing, Rate Limiting, and Quotas.

3 Limits Exhausted: HTTP 429
Method: generated, dated 2026-07-05.
Written by API Evangelist on 2026-07-05 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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PodcastingPublishingRate LimitingQuotas

Limits

Publishing API Requests user
requests
60 per minute
The documented rate limit across the Publishing API.
Episode Audio Upload Size request
bytes
150 MB maximum per audio file
MP3 format recommended at 128 kbps.
Show Access Scope user
shows
shows assigned to the API key's user
API keys are user-level; they cannot reach shows not assigned to that user.

Policies

Backoff Strategy
On a 429 response, back off and retry with exponential backoff and jitter, staying under 60 requests per minute.
User-Scoped Keys
Keys are issued per user by Acast customer success and are limited to that user's assigned shows.

Sources

Work with this as data

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

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Tools for rate limits

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  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • 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.
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Call it yourself

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curl "https://apis.io/api/v1/rate-limits/acast-rate-limits"
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curl "https://apis.io/api/v1/rate-limits?limit=25"

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