mails-ai

mails-ai Threads API

Conversation threads grouping inbound + outbound messages, with read state, folders and labels.

GitHub OpenAPI

Operations 4

GET /v1/threads List threads #
GET /v1/threads/{id} Retrieve a thread with messages #
PATCH /v1/threads/{id} Update a thread #
DELETE /v1/threads/{id} Trash or delete a thread #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/mails-ai/openapi/mails-ai-threads-api-openapi.yml

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OpenAPI Specification

mails-ai-threads-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Mails.ai Threads API
  version: 0.2.0
  description: 'The Mails.ai API gives AI agents a real email identity: send and receive

    transactional email. Mail received within your plan''s limits is scanned for prompt injection and

    reaches you as a typed event. With classification turned on (a paid-plan feature), new mail can also

    be read for intent; a reply in a thread never is.


    ## Authentication

    All endpoints take a Bearer API key:


    ```

    Authorization: Bearer mk_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

    ```


    Keys carry one or more scopes — `send`, `read`, `draft` (writes drafts, but can neither send nor

    schedule one) and `manage` — and a mode: **live** (`mk_live_…`) or **test** (`mk_test_…`).


    ## Test mode

    A `mk_test_` key exercises the entire API — real validation, persisted resources, real

    `message.sent`/`*.received` events and webhooks — without sending real email or incurring cost. Build and

    test your whole integration on a test key, then flip one character to `mk_live_` to go live.

    `POST /v1/test/inbound` (test key only) lets you simulate inbound mail end-to-end.


    ## Idempotency

    Send endpoints accept an `Idempotency-Key` header; a repeated key replays the stored response instead of

    sending twice, with an `Idempotent-Replay: true` header.


    ## Pagination

    List endpoints are cursor-paginated: pass `limit` (1–100) and the `next_cursor` from the previous page.


    ## Errors

    Errors use a stable envelope: `{ "error": { "type", "code", "message", "param", "request_id" } }`. Every

    response carries an `X-Request-Id` header for support correlation.'
  contact:
    name: Mails.ai Support
    url: https://mails.ai
    email: support@mails.ai
  license:
    name: Proprietary
    identifier: LicenseRef-Proprietary
servers:
- url: https://api.mails.ai
  description: Production
security:
- bearerAuth: []
tags:


# --- truncated at 32 KB (35 KB total) ---
# Full source: https://artifacts.apis.io/mails-ai/openapi/mails-ai-threads-api-openapi.yml