Testmail

Testmail is an email testing API platform for developers and QA teams that provides programmable inboxes with unlimited email addresses via a namespace.tag routing scheme. It offers both a JSON REST API and a GraphQL API for instant, programmatic retrieval of test emails, supporting automated end-to-end email testing in development workflows and CI/CD pipelines. Key capabilities include wildcard tag searches, live queries, pagination, spam score testing via SpamAssassin, and attachment handling.

2 APIs 0 Features

Email TestingDeveloper ToolsAPI TestingGraphQLREST APICI/CDQA AutomationProgrammable Inboxes

Sources

aid: testmail-app
name: Testmail
description: >-
  Testmail is an email testing API platform for developers and QA teams that
  provides programmable inboxes with unlimited email addresses via a
  namespace.tag routing scheme. It offers both a JSON REST API and a GraphQL
  API for instant, programmatic retrieval of test emails, supporting automated
  end-to-end email testing in development workflows and CI/CD pipelines. Key
  capabilities include wildcard tag searches, live queries, pagination, spam
  score testing via SpamAssassin, and attachment handling.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: >-
  https://raw.githubusercontent.com/api-evangelist/testmail-app/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
  - Email Testing
  - Developer Tools
  - API Testing
  - GraphQL
  - REST API
  - CI/CD
  - QA Automation
  - Programmable Inboxes
apis:
  - aid: testmail-app:testmail-json-api
    name: Testmail JSON API
    description: >-
      RESTful JSON API for retrieving test emails from Testmail programmable
      inboxes. Supports filtering by namespace and tag, pagination, live
      polling queries, and spam score reports. Authentication via API key as
      query parameter.
    humanURL: https://testmail.app/docs/
    baseURL: https://api.testmail.app/api/json
    tags:
      - Email Testing
      - REST API
      - JSON
    properties:
      - type: Documentation
        url: https://testmail.app/docs/
      - type: OpenAPI
        url: openapi/testmail-app-json-api-openapi.yml
  - aid: testmail-app:testmail-graphql-api
    name: Testmail GraphQL API
    description: >-
      Full-featured GraphQL API for querying test emails from Testmail
      programmable inboxes. Supports advanced filtering, custom sorting, field
      selection, live queries, pagination, and spam reports. Bearer token
      authentication via Authorization header.
    humanURL: https://testmail.app/docs/
    baseURL: https://api.testmail.app/api/graphql
    tags:
      - Email Testing
      - GraphQL
    properties:
      - type: Documentation
        url: https://testmail.app/docs/
      - type: GraphQLEndpoint
        url: https://api.testmail.app/api/graphql
      - type: OpenAPI
        url: openapi/testmail-app-graphql-api-openapi.yml
common:
  - type: Website
    url: https://testmail.app
  - type: Documentation
    url: https://testmail.app/docs/
  - type: GitHubOrg
    url: https://github.com/testmail-app
  - type: X
    url: https://x.com/testmailapp
  - type: Blog
    url: https://testmail.app/blog/
  - type: Pricing
    url: https://testmail.app/pricing/
  - type: StatusPage
    url: https://status.testmail.app
  - type: Plans
    url: plans/testmail-app-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/testmail-app-rate-limits.yml
  - type: FinOps
    url: finops/testmail-app-finops.yml
maintainers:
  - FN: Kin Lane
    email: [email protected]

Testmail

APIs

Testmail JSON API

Testmail GraphQL API

Semantic Vocabularies

Testmail App Context

Resources

Sources