Buttondown · Rate Limits

Buttondown Rate Limits

Buttondown's published API rate limits, read from its rate-limits documentation. This replaces the 2026-05-04 scaffold, whose values were placeholders. Buttondown enforces one global per-minute limit plus one endpoint-specific daily cap on subscriber creation, and returns rate-limit state on every response.

Buttondown Rate Limits is the machine-readable rate-limit profile for Buttondown on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 3 rate-limit definitions, measuring requests_per_minute, requests_per_day, and requests_per_hour.

The profile also includes response codes documented for throttled and quotaExceeded.

Tagged areas include Email, Newsletters, Rate Limiting, and Throttling.

3 Limits Throttle: 429 Quota: 400
EmailNewslettersRate LimitingThrottling

Limits

Global API limit api-key
requests_per_minute
600
Subscriber creation daily cap newsletter
requests_per_day
100
Firewall bypass limit newsletter
requests_per_hour
5

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

4 MCP tools reach this
  • 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.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

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

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