uChecker · Rate Limits
Uchecker Rate Limits
Uchecker Rate Limits is the rate-limit profile for uChecker 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 observed, probe, and status_on_exhaustion response headers.
Tagged areas include Email Verification, Email, SMTP, DNS, and Deliverability.
0 Limits
observedprobestatus_on_exhaustion
Transcribed from the provider's documentation on 2026-08-16 — api.uchecker.net/docs/openapi.json — info.description, se....
View Source
Limits
uChecker publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.
limit_count is ZERO because uChecker explicitly states it enforces NO request-rate limit. This is a documented policy, not an undocumented gap: throughput is governed by the prepaid credit balance instead of by a request-per-window ceiling. Exhaustion therefore surfaces as HTTP 403 ("insufficient credits"), never as 429.
Email VerificationEmailSMTPDNSDeliverabilitymxSPFDKIMDMARCMCPAgent-NativeData Quality
Work with this as data
Every rate limit here is available over the APIs.io API and to AI agents over MCP.