First Street · Rate Limits

First Street Rate Limits

First Street's published rate limits, replacing the 2026-05-04 scaffold that carried invented free/pro/enterprise tiers. The real contract has ONE published default — 150 requests per minute — and everything else is negotiated. It also carries a second, independent ceiling most catalogs miss: a query-complexity budget of 700 that can reject a single request no matter how slowly you send them.

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

It captures 2 rate-limit definitions, across the default tier, measuring requests_per_minute and complexity_score.

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

The profile also includes 3 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Environment, Modeling, Risk, Climate, and Rate Limiting.

2 Limits Exhausted: HTTP 429 limitremainingresetretryAfter
Transcribed from the provider's documentation on 2026-09-10 — docs.firststreet.org/api/climate-risk-api/getting-started....
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EnvironmentModelingRiskClimateRate LimitingQuotasThrottling

Limits

Default request limit api-key
requests_per_minute · per minute
150/minute
"Default request limiting starts at 150 requests per minute but is adjusted based on individual contract agreements."
Query complexity budget request
complexity_score · per per-request
700/per-request
"Query complexity is based off of the data fields requested in a query ... The current query complexity limit is set to 700 which should satisfy 99% of all user requests." A second, orthogonal ceiling: a wide GraphQL selection can be rejected even when the caller is well inside the per-minute limit. The scoring algorithm is internal and not published, so the cost of a given query cannot be computed client side.

Policies

Contractual adjustment
Every published number is a starting point. Actual limits are set per contract and bound to the key at issuance, so two keys against the same endpoint can have different ceilings.
Playground counts against usage
Requests made through the GraphiQL Playground are ordinary API requests and count toward account usage; there is no free evaluation lane.
Tile usage counts
Map tile requests, including those made from the published Mapbox/Google Maps examples, count toward overall API usage.

Work with this as data

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

MCP server

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

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