Astronomy API · Rate Limits

Astronomy Api Rate Limits

Astronomy API ENFORCES rate limiting but PUBLISHES NO NUMBERS. The docs confirm the mechanism, the scope and the status code, and state nothing about the threshold, the window, the burst allowance or any response header.

Astronomy Api Rate Limits is the rate-limit profile for Astronomy API on the APIs.io network.

The provider publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.

Limit state is signalled in the documented, limit, remaining, and reset response headers, and an exhausted limit returns HTTP 429.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled, throttled_documented, timeout, timeout_note, quotaExceeded, and serviceUnavailable.

Tagged areas include Astronomy, Celestial Data, Space, Moon Phases, and Star Charts.

0 Limits Exhausted: HTTP 429 documentedlimitremainingreset
Transcribed from the provider's documentation on 2026-09-04 — docs.astronomyapi.com/known-issues (Known Issues → "Too m....
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Limits

Astronomy API publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.
This file previously carried five invented per-tier limits (10/100/1000 rpm, 1,000 and 100,000 requests/month, burst values) and a full set of X-RateLimit-* headers, written by the 2026-05-04 bulk sweep and marked `method: generated`. Astronomy API publishes none of those numbers and returns none of those headers. The scaffold has been replaced with what the provider actually documents.
AstronomyCelestial DataSpaceMoon PhasesStar Charts

Policies

Backoff
The docs say only "Retrying after some time will resolve this error". No Retry-After header, no interval, no backoff algorithm is specified.
Escalation
Higher throughput is obtained by emailing contact@astronomyapi.com; there is no self-serve upgrade path and no published tier ceiling.

Work with this as data

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

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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

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