specification: API Commons Rate Limits specificationVersion: '0.1' schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits provider: tyntec providerId: tyntec created: '2026-07-11' modified: '2026-07-11' reconciled: false tags: - CPaaS - SMS - WhatsApp - Number Verification - Rate Limiting - Quotas description: >- tyntec does not publish fixed numeric per-second request limits for its public REST APIs in the general reference. Throughput on the messaging surfaces (SMS and Conversations) is governed primarily by carrier and channel constraints - A2P SMS throughput allocated to your account and, for WhatsApp, the messaging limits and quality rating that Meta assigns to your WhatsApp Business phone number. Number verification and HLR lookups are metered per transaction against account balance rather than a documented per-minute cap. Clients should handle 429 responses with backoff. notes: >- Concrete numeric limits are account- and channel-specific and are not published in the public reference as of the review date. WhatsApp messaging tiers (e.g. 1K / 10K / 100K / unlimited unique recipients per 24h) are set by Meta on the business phone number, not by tyntec. Confirm allocations with tyntec support. sources: - https://api.tyntec.com/reference/ - https://api.tyntec.com/reference/conversations/current.html - https://www.tyntec.com/helpcenter/docs/ responseCodes: throttled: 429 limits: - name: REST API Requests scope: account metric: requests limit: not published notes: No fixed numeric request-rate limit is documented in the public API reference. - name: SMS Throughput scope: account metric: messages limit: carrier / account allocated notes: A2P SMS send rate depends on the throughput allocated to your account and destination network. - name: WhatsApp Messaging Limit scope: phone_number metric: unique_recipients limit: Meta-assigned tier notes: Meta sets the WhatsApp Business messaging tier and quality rating per phone number, not tyntec. - name: Number Verification / HLR Lookups scope: account metric: lookups limit: metered per transaction notes: Billed per lookup against account balance; no documented per-minute cap. policies: - name: Backoff Strategy description: On HTTP 429, retry with exponential backoff and jitter. - name: Channel Compliance description: WhatsApp and SMS traffic must comply with channel and carrier policy (opt-in, template approval for WhatsApp) or delivery is throttled or blocked. maintainers: - FN: Kin Lane email: kin@apievangelist.com