Testmail website screenshot

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

APIs

Testmail JSON API

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...

Testmail GraphQL API

Full-featured GraphQL API for querying test emails from Testmail programmable inboxes. Supports advanced filtering, custom sorting, field selection, live queries, pagination, an...

GraphQL

Testmail.app GraphQL API

The Testmail.app GraphQL API provides a full-featured interface for querying test emails from programmable inboxes. Emails are routed to addresses in the format `{namespace}.{ta...

GRAPHQL

Pricing Plans

Testmail App Plans Pricing

4 plans

PLANS

Rate Limits

Testmail App Rate Limits

0 limits

RATE LIMITS

FinOps

Testmail App Finops

FINOPS

Semantic Vocabularies

Testmail App Context

6 classes · 38 properties

JSON-LD

Example Payloads

Graphql Inbox Query

4 fields

EXAMPLE

Graphql Livequery

5 fields

EXAMPLE

Json Api Get Emails

4 fields

EXAMPLE

Json Api Spam Report

4 fields

EXAMPLE

Resources

🔗
Website
Website
🔗
Documentation
Documentation
👥
GitHubOrg
GitHubOrg
🔗
X
X
📰
Blog
Blog
💰
Pricing
Pricing
🟢
StatusPage
StatusPage
🔗
Plans
Plans
🔗
RateLimits
RateLimits
🔗
FinOps
FinOps

Sources

Raw ↑ 
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-images.s3.amazonaws.com/shared/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
  - url: graphql/testmail-app-graphql.md
    type: GraphQL
- 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: kin@apievangelist.com