generated: '2026-09-03'
method: searched
source: https://www.mediacaption.io/docs/rate-limits
description: >-
  Published launch limits for the Media Caption Public API v1, with the runtime
  rate-limit headers the OpenAPI contract declares on rate-limitable
  operations.
limit_count: 4
limits:
  - name: General API limit
    scope: per account and API key
    limit: 60
    window: 1 minute
    applies_to: all /v1 endpoints
  - name: Single transcript endpoint
    scope: per account and API key
    limit: 10
    window: 1 minute
    applies_to: POST /v1/transcripts
  - name: Concurrent bulk jobs
    scope: per account
    limit: 5
    window: concurrent
    applies_to: POST /v1/transcripts/bulk
  - name: Bulk job size
    scope: per job
    limit: 100
    window: per request
    applies_to: items[] in POST /v1/transcripts/bulk
exhaustion:
  status_code: 429
  error_codes:
    - public_api_rate_limited
    - single_transcript_rate_limited
    - concurrent_job_limit_exceeded
  retry_guidance: Respect Retry-After on 429 responses; use bulk jobs instead of looping over POST /v1/transcripts.
headers:
  - X-RateLimit-Limit
  - X-RateLimit-Remaining
  - X-RateLimit-Reset
  - Retry-After
notes: >-
  Headers are declared in the OpenAPI contract (components/headers) on
  rate-limitable operations; the docs label these values "launch limits".