Signal · Rate Limits
Signal Rate Limits
Signal does not publish a public rate-limits document for a commercial API surface. The Signal service applies abuse-mitigation throttling (e.g., on registration, message send, group operations) internally; thresholds are intentionally not published and may change without notice. There is no developer-facing rate-limit contract.
Signal Rate Limits is the machine-readable rate-limit profile for Signal on the APIs.io network, conforming to the API Commons Rate Limits specification.
It captures 1 rate-limit definition, measuring varies.
The profile also includes 1 backoff/retry policy defined.
Tagged areas include Messaging, Encryption, Privacy, and Rate Limiting.
1 Limits
MessagingEncryptionPrivacyRate Limiting
Limits
Anti-abuse throttling client
not publicly documented
Registration, send, and group operations may be throttled to mitigate spam/abuse; thresholds are not published.
Policies
Anti-Abuse, Not SLA
Signal's rate limits exist to protect end users from spam and abuse rather than to partition a billable API; clients must not rely on specific thresholds.