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: Outreach
providerId: outreach
created: '2026-05-08'
modified: '2026-08-13'
generated: '2026-08-13'
method: searched
source: https://developers.outreach.io/api/getting-started#rate-limiting
reconciled: true
tags:
- Sales
- Sales Engagement
- Sequences
- CRM
- Email
- Rate Limiting
- Quotas
- Throttling
description: >-
  Published rate limits for the Outreach REST API. Outreach rate-limits primarily on a per-user basis at
  10,000 requests per hour, with tighter org-level limits on Kaia recordings/transcripts, a token-minting
  throttle on the OAuth token endpoint, and a separate annual API-call entitlement attached to each
  commercial plan (250,000 to 1,000,000 calls depending on tier — see plans/outreach-plans-pricing.yml).
notes: >-
  Harvested from the provider's own Getting Started documentation and pricing page. Outreach explicitly
  reserves the right to adjust limits at any time. Limits were not observed on a live unauthenticated
  response — every api.outreach.io route returns 401 without a token — so the values and headers below are
  the documented contract, not a probe.
sources:
- https://developers.outreach.io/api/getting-started#rate-limiting
- https://developers.outreach.io/api/getting-started#token-availability
- https://www.outreach.ai/pricing
responseCodes:
  throttled: 429
  maintenance: 503
headers:
- name: X-RateLimit-Limit
  description: Maximum number of requests permitted per time period.
- name: X-RateLimit-Remaining
  description: Requests remaining within the current time period.
- name: X-RateLimit-Reset
  description: When the rate-limit counter resets. Aliased as the Retry-After header.
- name: Retry-After
  description: Alias of X-RateLimit-Reset on 429; on 503 carries an ISO-8601 timestamp for the end of the
    maintenance window.
header_coverage: All responses include the three X-RateLimit-* headers.
limit_count: 4
limits:
- name: REST API default
  scope: per-user
  metric: requests
  limit: 10000
  window: hour
  status_on_exhaustion: 429
  error_id: rateLimitExceeded
  source: https://developers.outreach.io/api/getting-started#rate-limiting
- name: Kaia recordings and transcripts (burst)
  scope: per-org
  metric: requests
  limit: 3
  window: second
  source: https://developers.outreach.io/api/getting-started#rate-limiting
- name: Kaia recordings and transcripts (daily)
  scope: per-org
  metric: requests
  limit: 6000
  window: day
  source: https://developers.outreach.io/api/getting-started#rate-limiting
- name: OAuth access-token minting
  scope: per-user-per-application
  metric: token requests
  limit: 1
  window: 60 seconds
  status_on_exhaustion: 429
  notes: Applications must cache the access token for its full 2-hour life rather than re-minting.
  source: https://developers.outreach.io/api/getting-started#token-availability
quotas:
- name: Active refresh tokens
  scope: per-user-per-application
  limit: 100
  source: https://developers.outreach.io/api/getting-started#token-availability
- name: Plan API call entitlement
  scope: per-subscription
  limit: 250000 - 1000000 per plan tier
  notes: Amplify Essentials/Core 250,000; Amplify Plus 500,000; Amplify Pro 1,000,000. See
    plans/outreach-plans-pricing.yml.
  source: https://www.outreach.ai/pricing
- name: Offset pagination ceiling
  scope: per-request
  limit: max offset 10,000; max page limit 1,000
  source: https://developers.outreach.io/api/making-requests#offset-pagination-deprecated
policies:
- name: Backoff strategy
  description: Honor X-RateLimit-Reset / Retry-After before retrying. Outreach reserves the right to adjust
    API rate limits at any time to safeguard platform performance.
- name: Endpoint-specific rules
  description: Some endpoints (bulk/batch API, Kaia) apply special rules beyond the per-user default.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com