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: AudD
providerId: audd
created: '2026-06-21'
modified: '2026-06-21'
reconciled: false
tags:
- Music
- Music Recognition
- Audio
- Fingerprinting
- Lyrics
- Rate Limiting
- Quotas
- Throttling
description: >-
  AudD gates access primarily through request quotas rather than fine-grained
  per-second rate limits. Without an api_token, usage is capped at 10 requests
  per method per day. With a token, the 300-request free allotment and any
  monthly plan limits apply; additional usage is billed per 1,000 requests.
  The enterprise endpoint counts one request per 12 seconds of audio scanned.
  Specific per-second throttling values are not documented publicly.
notes: >-
  Confirm any per-second or concurrency limits with AudD support during
  reconciliation; the public documentation describes daily/monthly request
  quotas rather than burst rate limits.
sources:
- https://docs.audd.io/
- https://docs.audd.io/enterprise/
- https://audd.io/
responseCodes:
  throttled: 429
limits:
- name: Anonymous Requests Per Day
  scope: ip
  metric: requests
  limit: 10 per method per day (no api_token)
  notes: Free anonymous usage without an API token.
- name: Free Token Allotment
  scope: account
  metric: requests
  limit: 300 free requests
  notes: Included free with a new account before billing begins.
- name: Monthly Plan Quota
  scope: account
  metric: requests
  limit: per purchased plan (e.g. 100K / 200K / 500K per month)
  notes: Usage beyond the plan is billed per 1,000 requests.
- name: Enterprise Chunk Billing
  scope: account
  metric: requests
  limit: 1 request per 12 seconds of audio scanned
  notes: Applies to the enterprise file-scan endpoint.
policies:
- name: Quota-Based Access
  description: Access is controlled by free allotment and purchased monthly request quotas rather than per-second throttling.
- name: Backoff Strategy
  description: Clients should implement retries with exponential backoff and honor any 429 responses.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com