generated: '2026-09-02' method: probed source: >- Live unauthenticated probes of https://formboost.app/f/{alias} on 2026-09-02, plus the published plan quotas at https://formboost.app/pricing and the rate-limit statement at https://formboost.app/security limit_count: 5 response_headers: standard: draft-ietf-httpapi-ratelimit-headers (RateLimit-*) observed: - header: RateLimit-Limit example: '10' note: Requests permitted in the current window. - header: RateLimit-Policy example: 10;w=60 note: Quota and window in seconds, in the draft RateLimit-Policy form. - header: RateLimit-Remaining example: '9' note: Requests left in the current window. - header: RateLimit-Reset example: '60' note: Seconds until the window resets. retry_after: false retry_after_note: >- No Retry-After header was observed. An agent should read RateLimit-Reset instead. status_on_exhaustion: 429 status_evidence: https://formboost.app/docs/api-reference-and-config note: >- These are the modern IETF draft RateLimit-* headers, not the legacy X-RateLimit-* family. Emitting them on an anonymous endpoint is a genuinely good agent-readiness signal: a client can pace itself without a key and without reading the docs. limits: - scope: per-ip surface: POST https://formboost.app/f/{alias} window: 60s limit: 10 burst: null policy_header: 10;w=60 method: probed evidence: >- Live POST to https://formboost.app/f/nonexistent-probe-aeio on 2026-09-02 returned 202 with ratelimit-limit: 10, ratelimit-policy: 10;w=60, ratelimit-remaining: 9, ratelimit-reset: 60. note: The submission rate limit. Ten form posts per minute per source IP. - scope: per-ip surface: GET https://formboost.app/f/{alias} (non-POST methods on the endpoint host) window: 1s limit: 100 burst: null policy_header: 100;w=1 method: probed evidence: >- Live GET to https://formboost.app/f/nonexistent-probe-aeio on 2026-09-02 returned 404 with ratelimit-limit: 100, ratelimit-policy: 100;w=1, ratelimit-reset: 1. note: >- A separate, much looser bucket applies to non-submission traffic on the same host. Undocumented — observed only. - scope: per-account surface: submissions across all forms window: 1 month limit: 500 plan: Free method: searched evidence: https://formboost.app/pricing note: Also capped at 10 forms on this plan. - scope: per-account surface: submissions across all forms window: 1 month limit: 5000 plan: Starter method: searched evidence: https://formboost.app/pricing - scope: per-account surface: submissions across all forms window: 1 month limit: 50000 plan: Pro method: searched evidence: https://formboost.app/pricing undocumented_note: >- Formboost documents that the public endpoint "is rate limited per IP" (https://formboost.app/security) but publishes no number anywhere in the docs. The per-IP figures above were read off live response headers, not from documentation. The monthly submission figures are published plan quotas.