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: Medrio
providerId: medrio
created: '2026-07-05'
modified: '2026-07-05'
reconciled: false
tags:
- Clinical Trials
- Electronic Data Capture
- EDC
- Rate Limiting
- Quotas
description: >-
  Medrio does not publish numeric rate limits for either the Medrio API Connect
  REST API or the mSource API. Both are OAuth 2.0-secured, customer-gated
  integration surfaces used within the scope of a licensed study rather than a
  public self-service API, so throughput is governed by the customer's account
  and study provisioning rather than a documented per-minute request cap.
notes: >-
  No per-account or per-endpoint numeric limits are documented as of the review
  date. Clients should implement exponential backoff with jitter and honor any
  Retry-After header on 429 responses. Confirm operational limits with Medrio
  during integration onboarding.
sources:
- https://connectapi.medrio.com/swagger/index.html
- https://esource.medrio.com/Help
- https://community.medrio.com/documentation/home
responseCodes:
  throttled: 429
limits:
- name: API Connect Requests
  scope: account
  metric: requests
  limit: not published
  notes: No fixed numeric request-rate limit is documented for Medrio API Connect.
- name: mSource API Requests
  scope: account
  metric: requests
  limit: not published
  notes: No fixed numeric request-rate limit is documented for the mSource API V2.
- name: Study Scope
  scope: study
  metric: access
  limit: per subscription
  notes: API access is bounded by the studies and modules provisioned to the customer account.
policies:
- name: OAuth Token Scope
  description: All calls require an OAuth access token issued for a provisioned study/account; access is bounded by the token's scope.
- name: Backoff Strategy
  description: Clients should implement exponential backoff with jitter and honor Retry-After on 429 responses.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com