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: Respond.io
providerId: respond
created: '2026-06-20'
modified: '2026-06-20'
reconciled: false
tags:
- Messaging
- Omnichannel
- Customer Conversations
- WhatsApp
- AI
- Rate Limiting
- Quotas
- Throttling
description: >-
  The respond.io Developer API limits each API call method to 5 requests per
  second. When the limit is exceeded the API returns HTTP 429 (Too Many
  Requests) with a Retry-After header indicating how long to wait. Enterprise
  agreements can negotiate higher API limits. Per-channel messaging is
  additionally subject to the upstream channel provider's limits (for example
  WhatsApp Business Platform messaging tiers), which are not reconciled here.
notes: >-
  The 5 req/s per-method limit is documented; verify whether it is per token,
  per workspace, or per method endpoint and confirm any per-channel or
  Enterprise overrides during reconciliation.
sources:
- https://developers.respond.io/
- https://respond.io/help/integrations/developer-api
responseCodes:
  throttled: 429
limits:
- name: Requests Per Second (per method)
  scope: method
  metric: requests
  limit: 5
  notes: Each API call method is limited to 5 requests per second.
- name: Channel Messaging Limits
  scope: channel
  metric: messages
  limit: see channel provider documentation
  notes: >-
    Outbound messaging is also bounded by the connected channel provider's
    limits (e.g. WhatsApp messaging tiers, Messenger policies).
- name: Enterprise API Limits
  scope: account
  metric: requests
  limit: negotiated
  notes: Enterprise plans can negotiate higher API limits.
policies:
- name: Retry-After Header
  description: >-
    On 429 responses the API returns a Retry-After header; clients should wait
    the indicated duration before retrying.
- name: Backoff Strategy
  description: Clients should implement exponential backoff with jitter and honor Retry-After.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com