> ## Documentation Index > Fetch the complete documentation index at: https://aisa.one/docs/llms.txt > Use this file to discover all available pages before exploring further. # Get Draft Attachment > Fetches metadata for one attachment on an unsent draft. Fetches metadata for one attachment on an unsent draft. Returns `attachment_id`, `filename`, `size`, `content_type`, `content_disposition`, `content_id` and a short-lived `download_url` with `expires_at`. The bytes are not inlined — fetch `download_url` before it expires. Ids come from the draft's `attachments` array on `get_agentmail_inbox_draft`. The sent-message twin is `get_agentmail_inbox_message_attachment`. ## Example ```bash REST theme={null} curl -X GET "https://api.aisa.one/apis/v1/agentmail/inboxes/{inbox_id}/drafts/{draft_id}/attachments/{attachment_id}" \ -H "Authorization: Bearer YOUR_API_KEY" ``` ```jsonc MCP theme={null} // Copy this whole block into Claude Code, Codex, Cursor or any coding agent. // It carries everything needed to connect, authorize and run this example — // no key to paste, one click of Allow in the browser. { "operation_id": "get_agentmail_inbox_draft_attachment", "arguments": {}, "max_price_usd": 0.05 } // ── for the agent ───────────────────────────────────────────────────────── // Register the AIsa MCP server, then call its `use` tool with the JSON above. // name aisa // endpoint https://mcp.aisa.one/mcp // transport streamable-http // auth OAuth. The server publishes RFC 9728 metadata, so open a // browser and the user clicks Allow once — nothing to paste. // If AISA_API_KEY is set, send it as a bearer header instead. // Use your own MCP mechanism, not a hand-edited config file: // Codex codex mcp add aisa --url https://mcp.aisa.one/mcp // Claude Code claude mcp add --transport http -s user aisa https://mcp.aisa.one/mcp // Cursor / VS Code a "url" entry for https://mcp.aisa.one/mcp in the MCP config // The server lists five tools over https://mcp.aisa.one/servers worth of APIs: // search, get_details, use, batch_use, list_categories. search and // get_details are free; use is billed per call and max_price_usd refuses // anything above the cap before spending. This operation's full contract — // every argument, the response shape, the price and the pitfalls — is at // https://aisa.one/docs/api-reference/agentmail/get_agentmail-inboxes-inbox-id-drafts-draft-id-attachments-attachment-id.md // Then run the call and show me the result. ``` **First time?** Point any MCP client at `https://mcp.aisa.one/mcp` — Claude Code, Codex, Cursor, VS Code and the rest. Authorization is OAuth: the client opens a browser, you click Allow once, and there is no key to paste. The commands per client, and what each call costs, are on [aisa.one/mcp](https://aisa.one/mcp#connect). [Set this endpoint up in your agent →](https://aisa.one/mcp?from=/api-reference/agentmail/get_agentmail-inboxes-inbox-id-drafts-draft-id-attachments-attachment-id) ## OpenAPI ````yaml openapi/agentmail.json GET /agentmail/inboxes/{inbox_id}/drafts/{draft_id}/attachments/{attachment_id} openapi: 3.1.0 info: title: AgentMail API version: 1.0.0 description: >- AgentMail email API endpoints exposed through the AIsa unified gateway. Adapted from the upstream docs.agentmail.to OpenAPI spec. servers: - url: https://api.aisa.one/apis/v1 security: - Bearer: [] paths: /agentmail/inboxes/{inbox_id}/drafts/{draft_id}/attachments/{attachment_id}: get: tags: - subpackage_inboxes.subpackage_inboxes/drafts summary: Get Draft Attachment description: >- Fetches metadata for one attachment on an unsent draft. Returns `attachment_id`, `filename`, `size`, `content_type`, `content_disposition`, `content_id` and a short-lived `download_url` with `expires_at`. The bytes are not inlined — fetch `download_url` before it expires. Ids come from the draft's `attachments` array on `get_agentmail_inbox_draft`. The sent-message twin is `get_agentmail_inbox_message_attachment`. operationId: get_agentmail_inbox_draft_attachment parameters: - name: inbox_id in: path required: true schema: $ref: '#/components/schemas/type_inboxes_InboxId' - name: draft_id in: path required: true schema: $ref: '#/components/schemas/type_drafts_DraftId' - name: attachment_id in: path required: true schema: $ref: '#/components/schemas/type_attachments_AttachmentId' - name: Authorization in: header description: Bearer authentication required: true schema: type: string responses: '200': description: Response with status 200 content: application/json: schema: $ref: '#/components/schemas/type_attachments_AttachmentResponse' '404': description: Error response with status 404 content: application/json: schema: $ref: '#/components/schemas/type__ErrorResponse' components: schemas: type_inboxes_InboxId: type: string description: The ID of the inbox. title: InboxId type_drafts_DraftId: type: string description: ID of draft. title: DraftId type_attachments_AttachmentId: type: string description: ID of attachment. title: AttachmentId type_attachments_AttachmentResponse: type: object properties: attachment_id: $ref: '#/components/schemas/type_attachments_AttachmentId' filename: $ref: '#/components/schemas/type_attachments_AttachmentFilename' size: $ref: '#/components/schemas/type_attachments_AttachmentSize' content_type: $ref: '#/components/schemas/type_attachments_AttachmentContentType' content_disposition: $ref: '#/components/schemas/type_attachments_AttachmentContentDisposition' content_id: $ref: '#/components/schemas/type_attachments_AttachmentContentId' download_url: type: string description: URL to download the attachment. expires_at: type: string format: date-time description: Time at which the download URL expires. required: - attachment_id - size - download_url - expires_at title: AttachmentResponse type__ErrorResponse: type: object properties: name: $ref: '#/components/schemas/type__ErrorName' message: $ref: '#/components/schemas/type__ErrorMessage' required: - name - message title: ErrorResponse type_attachments_AttachmentFilename: type: string description: Filename of attachment. title: AttachmentFilename type_attachments_AttachmentSize: type: integer description: Size of attachment in bytes. title: AttachmentSize type_attachments_AttachmentContentType: type: string description: Content type of attachment. title: AttachmentContentType type_attachments_AttachmentContentDisposition: type: string enum: - inline - attachment description: Content disposition of attachment. title: AttachmentContentDisposition type_attachments_AttachmentContentId: type: string description: Content ID of attachment. title: AttachmentContentId type__ErrorName: type: string description: Name of error. title: ErrorName type__ErrorMessage: type: string description: Error message. title: ErrorMessage securitySchemes: Bearer: type: http scheme: bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.