Fullcontact Rate Limits
FullContact publishes both its default ceiling and the exact response headers it returns, which is the part an agent needs. The signalling is unusual: rather than reject immediately, FullContact DELAYS a request up to 1000ms to keep it inside the configured limit and reports the delay it applied in X-FullContact-RateDelay. A 429 is only returned when the required delay would exceed 1000ms, and that 429 is itself delayed by the maximum latency so the caller can retry immediately and safely.
Fullcontact Rate Limits is the machine-readable rate-limit profile for FullContact on the APIs.io network, in the API Commons Rate Limits shape.
It captures 1 rate-limit definition.
Limit state is signalled in the X-FullContact-RateDelay, X-Rate-Limit, X-Rate-Limit-Remaining, and X-Rate-Limit-Reset response headers.
Tagged areas include Identity Resolution, Customer Data, Data Enrichment, Person API, and Company API.
X-FullContact-RateDelayX-Rate-LimitX-Rate-Limit-RemainingX-Rate-Limit-Reset
Limits
Work with this as data
Every rate limit here is available over the APIs.io API and to AI agents over MCP.