Basecamp · Rate Limits

Basecamp Rate Limits

Basecamp's bc3-api enforces multiple rate limits simultaneously, scoped per IP address with separate windows for GET vs POST and per-second/hour/day buckets. The most commonly hit limit is 50 requests per 10-second window per IP. Thresholds are dynamic and not published per-plan; integrators must handle backpressure rather than rely on static numbers.

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

It captures 2 rate-limit definitions, measuring requests_per_10_seconds and varies.

Limit state is signalled in the retryAfter response header, and 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 4 backoff/retry policies defined and response codes documented for throttled and serviceUnavailable.

Tagged areas include Collaboration, Project Management, REST, SaaS, and Team Communication.

2 Limits Exhausted: HTTP 429 retryAfter
Method: generated, dated 2026-05-05.
Written by API Evangelist on 2026-05-05 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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CollaborationProject ManagementRESTSaaSTeam CommunicationRate Limiting

Limits

Default per-IP throttle IP
requests_per_10_seconds · 10-seconds
50
Most commonly encountered limit. Multiple per-second/hour/day limits operate concurrently and are dynamically adjusted by Basecamp.
Per-method dynamic limits IP
varies
dynamic — separate buckets for GET and POST, per-second/hour/day
Documentation does not publish the exact thresholds; clients must observe 429 + Retry-After and back off.

Policies

Backoff Strategy
Implement exponential backoff with jitter and honor the Retry-After header on 429 responses.
Retry on 5xx
500, 502, 503, and 504 responses should be retried with exponential backoff. Do not retry 404s automatically.
Dynamic Backpressure
Basecamp explicitly warns thresholds adjust dynamically. Treat rate limits as observed runtime signals rather than static configuration.
User-Agent Identification
Basecamp requires a descriptive User-Agent header identifying the integration; missing/anonymous User-Agents may be blocked before rate limiting applies.

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

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