Signal · Capability

Signal Server API — Attachments

Signal Server API — Attachments. 1 operations. Lead operation: Get attachment upload form. Self-contained Naftiko capability covering one Signal business surface.

Run with Naftiko SignalAttachments

What You Can Do

GET
Getattachmentuploadform — Get attachment upload form
/v1/v4/attachments/form/upload

MCP Tools

get-attachment-upload-form

Get attachment upload form

read-only idempotent

Capability Spec

server-attachments.yaml Raw ↑
naftiko: 1.0.0-alpha2
info:
  label: Signal Server API — Attachments
  description: 'Signal Server API — Attachments. 1 operations. Lead operation: Get attachment upload form. Self-contained
    Naftiko capability covering one Signal business surface.'
  tags:
  - Signal
  - Attachments
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    SIGNAL_API_KEY: SIGNAL_API_KEY
capability:
  consumes:
  - type: http
    namespace: server-attachments
    baseUri: https://chat.signal.org
    description: Signal Server API — Attachments business capability. Self-contained, no shared references.
    resources:
    - name: v4-attachments-form-upload
      path: /v4/attachments/form/upload
      operations:
      - name: getattachmentuploadform
        method: GET
        description: Get attachment upload form
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    authentication:
      type: bearer
      token: '{{env.SIGNAL_API_KEY}}'
  exposes:
  - type: rest
    namespace: server-attachments-rest
    port: 8080
    description: REST adapter for Signal Server API — Attachments. One Spectral-compliant resource per consumed operation,
      prefixed with /v1.
    resources:
    - path: /v1/v4/attachments/form/upload
      name: v4-attachments-form-upload
      description: REST surface for v4-attachments-form-upload.
      operations:
      - method: GET
        name: getattachmentuploadform
        description: Get attachment upload form
        call: server-attachments.getattachmentuploadform
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: server-attachments-mcp
    port: 9090
    transport: http
    description: MCP adapter for Signal Server API — Attachments. One tool per consumed operation, routed inline through this
      capability's consumes block.
    tools:
    - name: get-attachment-upload-form
      description: Get attachment upload form
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: server-attachments.getattachmentuploadform
      outputParameters:
      - type: object
        mapping: $.