generated: '2026-08-14'
method: searched
source: https://docs.mattermark.com/graphql_api/index.html
docs:
- https://docs.mattermark.com/graphql_api/index.html
- https://docs.mattermark.com/rest_api/index.html
summary: >-
  Mattermark publishes a sandbox endpoint for the GraphQL (Enterprise) API with
  static data and no quota limits, plus a documented "Trial Access" mode on the
  REST API that caps results at 50 records with paging disabled. Both are
  captured verbatim from the provider's documentation. NOTE: at probe time the
  sandbox hostnames no longer resolve to a live service (dangling CNAMEs to
  deleted AWS Elastic Beanstalk environments), so the documented sandbox is not
  currently callable — see availability below.
test_live_separation:
  model: separate-hostname
  note: >-
    Production and sandbox are separated by hostname, not by key prefix. The
    same Authorization Bearer header is used; only the host changes.
environments:
- name: production-graphql
  kind: live
  host: https://eapi.mattermark.com
  quota: account quota applies
- name: sandbox-graphql
  kind: sandbox
  host: https://eapi-sandbox.mattermark.com
  data: static
  quota: none
  published_key: 08e723e5b6e9e9f64784e2500d240d7ef3a567e39347327be792c2805a1c2d20
  published_key_note: >-
    Shared, non-secret sandbox key published verbatim in the Mattermark GraphQL
    API documentation for anonymous evaluation. Not a customer credential.
  source: https://docs.mattermark.com/graphql_api/index.html
- name: production-rest
  kind: live
  host: https://api.mattermark.com
  quota: account quota applies
- name: sandbox-rest
  kind: sandbox
  host: https://api-sandbox.mattermark.com
  data: static
  note: >-
    Not documented on the REST pages; the hostname exists in DNS alongside the
    documented GraphQL sandbox. Recorded as observed DNS, not as a published
    Mattermark offering.
  source: dns
trial_access:
  documented: true
  source: https://docs.mattermark.com/rest_api/index.html
  applies_to: https://api.mattermark.com
  max_results: 50
  paging_enabled: false
  note: >-
    "When you are trying out the Mattermark API, you will have access to a test
    version which will provide you with up to 50 results, please note you will
    not be able to page through the results." Full paging is unlocked once the
    account is upgraded to full API access.
free_trial:
  product: Mattermark web application
  length_days: 14
  credit_card_required: false
  source: https://mattermark.com/pricing
tooling:
  graphiql:
    documented: true
    source: https://docs.mattermark.com/graphql_api/getting_started/index.html
    instructions: >-
      Run a local GraphiQL explorer via Docker
      (`docker run -it -p3000:3000 vitalcode/auth-graphiql`), open
      http://localhost:3000/graphql, set Host to https://eapi.mattermark.com and
      Token to the Enterprise API token.
    image: vitalcode/auth-graphiql
    first_party: false
  quota_probe:
    endpoint: https://api.mattermark.com/ratelimit/usage
    consumes_quota: false
    operation: openapi/mattermark-rest-api-openapi.yml#quota
test_values: []
test_values_note: >-
  Mattermark is a data provider, not a payments provider: it publishes no test
  cards, test bank accounts or magic identifiers. The only published test
  credential is the shared sandbox key above.
availability:
  checked: '2026-08-14'
  status: unreachable
  evidence:
  - host: eapi-sandbox.mattermark.com
    dns: CNAME prod-eapi-sandbox.us-east-1.elasticbeanstalk.com (no A record)
    https_status: 000
    finding: dangling CNAME to a deleted Elastic Beanstalk environment
  - host: api-sandbox.mattermark.com
    dns: CNAME prod-dwapi-sandbox.us-east-1.elasticbeanstalk.com (no A record)
    https_status: 000
    finding: dangling CNAME to a deleted Elastic Beanstalk environment
  note: >-
    The sandbox documentation remains published and unchanged while the backing
    infrastructure is gone. Recorded as a documented-but-not-callable surface.