Testmail Graph QL API

openapi: 3.2.0
info:
  title: Testmail Graph QL 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. Authenticated via Bearer token in the Authorization header. The GraphQL endpoint accepts POST requests with a JSON body containing the query and optional variables.
  version: 1.0.0
  contact:
    url: https://testmail.app/docs/
  license:
    name: Proprietary
    url: https://testmail.app
servers:
- url: https://api.testmail.app/api
  description: Testmail Production API
security:
- BearerAuth: []
tags:
- name: Graph QL
  description: GraphQL inbox query endpoint
paths:
  /graphql:
    post:
      operationId: graphqlQuery
      summary: Execute a GraphQL query against the Testmail inbox
      description: Executes a GraphQL query or mutation against the Testmail API. The primary query is `inbox`, which retrieves test emails matching the specified namespace and optional filters. Supports advanced filtering via FilterInput, custom sorting via SortInput, pagination, live queries, and selective field retrieval. When livequery is active the server waits up to 60 seconds for matching emails; if none arrive it returns HTTP 307 and the client must follow the redirect and resend.
      tags:
      - Graph QL
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/GraphQLRequest'
            examples:
              basicInbox:
                $ref: '#/components/examples/BasicInboxQuery'
              tagFilter:
                $ref: '#/components/examples/TagFilterQuery'
              advancedFilter:
                $ref: '#/components/examples/AdvancedFilterQuery'
              livequery:
                $ref: '#/components/examples/LiveQuery'
      responses:
        '200':
          description: Successful GraphQL response containing the inbox query result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GraphQLResponse'
              examples:
                success:
                  $ref: '#/components/examples/InboxQueryResponse'
        '307':
          description: Temporary redirect issued by livequery when no matching emails arrive within 60 seconds. Client must follow the redirect and resend the POST request with the same body.
          headers:
            Location:
              description: URL to resend the request to (same endpoint).
              schema:
                type: string
                format: uri
        '400':
          description: Bad request — malformed GraphQL query or missing required fields.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GraphQLErrorResponse'
        '401':
          description: Unauthorized — missing or invalid Bearer token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GraphQLErrorResponse'
        '429':
          description: Rate limit exceeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GraphQLErrorResponse'
components:
  schemas:
    InboxResult:
      type: object
      description: Result of the inbox GraphQL query.
      properties:
        result:
          type: string
          enum:
          - success
          - fail
          description: Whether the query succeeded.
          example: success
        message:
          type:
          - string
          - 'null'
          description: Human-readable message, populated on failure.
        count:
          type: integer
          description: Total number of emails matching the query (before pagination).
          example: 5
        emails:
          type: array
          description: Array of email objects matching the query.
          items:
            $ref: '#/components/schemas/GraphQLEmail'
    GraphQLError:
      type: object
      description: A single GraphQL error.
      properties:
        message:
          type: string
          description: Human-readable error message.
          example: Argument 'namespace' is required
        locations:
          type: array
          items:
            type: object
            properties:
              line:
                type: integer
              column:
                type: integer
        path:
          type: array
          items:
            type: string
    GraphQLErrorResponse:
      type: object
      description: GraphQL error response when no data is returned.
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/GraphQLError'
    GraphQLRequest:
      type: object
      required:
      - query
      description: GraphQL request body.
      properties:
        query:
          type: string
          description: GraphQL query string.
          example: 'query { inbox(namespace: "mynamespace") { result count emails { from subject } } }'
        variables:
          type: object
          additionalProperties: true
          description: Optional variables map to inject into the query.
          example:
            namespace: mynamespace
            tag: verify-user123
        operationName:
          type: string
          description: Optional name of the operation to execute when multiple operations are present.
          example: GetInbox
    ParsedAddress:
      type: object
      description: Parsed email address components.
      properties:
        address:
          type: string
          description: The raw email address.
          example: sender@example.com
        name:
          type: string
          description: Display name associated with the address.
          example: John Sender
    GraphQLResponse:
      type: object
      description: GraphQL response envelope.
      properties:
        data:
          type: object
          description: Query result data keyed by operation name.
          properties:
            inbox:
              $ref: '#/components/schemas/InboxResult'
        errors:
          type: array
          description: List of GraphQL errors, if any.
          items:
            $ref: '#/components/schemas/GraphQLError'
    GraphQLEmail:
      type: object
      description: A single test email returned by the GraphQL inbox query. Fields are only returned if requested in the GraphQL selection set.
      properties:
        from:
          type: string
          description: Sender email address.
          example: sender@example.com
        from_parsed:
          $ref: '#/components/schemas/ParsedAddress'
        to:
          type: string
          description: Recipient email address in the testmail namespace.
          example: mynamespace.mytag@inbox.testmail.app
        subject:
          type: string
          description: Email subject line.
          example: Welcome to Our Service
        text:
          type: string
          description: Plain-text body of the email.
        html:
          type: string
          description: HTML body of the email.
        tag:
          type: string
          description: Tag portion of the recipient address.
          example: mytag
        timestamp:
          type: number
          format: float
          description: Unix timestamp in milliseconds when the email was received.
          example: 1686000000000.0
        spam_score:
          type: number
          format: float
          description: SpamAssassin spam score. Scores above 5 are typically flagged as spam.
          example: 1.2
  examples:
    InboxQueryResponse:
      summary: Successful inbox query response
      value:
        data:
          inbox:
            result: success
            message: null
            count: 2
            emails:
            - from: no-reply@myapp.com
              to: mynamespace.verify-abc@inbox.testmail.app
              subject: Verify your email
              text: Click here to verify.
              tag: verify-abc
              timestamp: 1686000000000.0
            - from: no-reply@myapp.com
              to: mynamespace.verify-def@inbox.testmail.app
              subject: Verify your email
              text: Click here to verify.
              tag: verify-def
              timestamp: 1686001000000.0
    LiveQuery:
      summary: Live query waiting for a new email
      value:
        query: "query {\n  inbox(namespace: \"mynamespace\", tag: \"signup-newuser\", livequery: true) {\n    result\n    count\n    emails {\n      from\n      subject\n      text\n      timestamp\n    }\n  }\n}\n"
    TagFilterQuery:
      summary: Filter emails by exact tag
      value:
        query: "query GetTaggedEmails($ns: String!, $tag: String) {\n  inbox(namespace: $ns, tag: $tag, limit: 5) {\n    result\n    count\n    emails {\n      from\n      subject\n      tag\n      timestamp\n    }\n  }\n}\n"
        variables:
          ns: mynamespace
          tag: verify-user123
    BasicInboxQuery:
      summary: Retrieve all emails in a namespace
      value:
        query: "query {\n  inbox(namespace: \"mynamespace\") {\n    result\n    count\n    emails {\n      from\n      to\n      subject\n      text\n      tag\n      timestamp\n    }\n  }\n}\n"
    AdvancedFilterQuery:
      summary: Advanced filter by subject wildcard
      value:
        query: "query {\n  inbox(\n    namespace: \"mynamespace\"\n    advanced_filters: [{ field: \"subject\", match: \"wildcard\", action: \"include\", value: \"Welcome*\" }]\n    advanced_sorts: [{ field: \"timestamp\", order: \"desc\" }]\n    limit: 20\n  ) {\n    result\n    count\n    emails {\n      from\n      subject\n      tag\n      timestamp\n      spam_score\n    }\n  }\n}\n"
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'API key as Bearer token. Obtain from the Testmail developer console and pass as: Authorization: Bearer YOUR_API_KEY'