N8n · Capability

n8n Public API — Variables

n8n Public API — Variables. 4 operations. Lead operation: Create a variable. Self-contained Naftiko capability covering one N8n business surface.

Run with Naftiko N8nVariables

What You Can Do

POST

Createvariable — Create a variable

/v1/variables

GET

Getvariables — Retrieve variables

/v1/variables

DELETE

Deletevariable — Delete a variable

/v1/variables/{id}

PUT

Updatevariable — Update a variable

/v1/variables/{id}

MCP Tools

create-variable

Create a variable

retrieve-variables

Retrieve variables

read-only idempotent

delete-variable

Delete a variable

idempotent

update-variable

Update a variable

idempotent

Capability Spec

naftiko: 1.0.0-alpha2
info:
  label: n8n Public API — Variables
  description: 'n8n Public API — Variables. 4 operations. Lead operation: Create a variable. Self-contained Naftiko capability
    covering one N8n business surface.'
  tags:
  - N8n
  - Variables
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    N8N_API_KEY: N8N_API_KEY
capability:
  consumes:
  - type: http
    namespace: n8n-variables
    baseUri: https://app.n8n.cloud/api/v1
    description: n8n Public API — Variables business capability. Self-contained, no shared references.
    resources:
    - name: variables
      path: /variables
      operations:
      - name: createvariable
        method: POST
        description: Create a variable
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
      - name: getvariables
        method: GET
        description: Retrieve variables
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: limit
          in: query
          type: number
        - name: cursor
          in: query
          type: string
    - name: variables-id
      path: /variables/{id}
      operations:
      - name: deletevariable
        method: DELETE
        description: Delete a variable
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: id
          in: path
          type: string
          required: true
      - name: updatevariable
        method: PUT
        description: Update a variable
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: id
          in: path
          type: string
          required: true
    authentication:
      type: bearer
      token: '{{env.N8N_API_KEY}}'
  exposes:
  - type: rest
    namespace: n8n-variables-rest
    port: 8080
    description: REST adapter for n8n Public API — Variables. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/variables
      name: variables
      description: REST surface for variables.
      operations:
      - method: POST
        name: createvariable
        description: Create a variable
        call: n8n-variables.createvariable
        outputParameters:
        - type: object
          mapping: $.
      - method: GET
        name: getvariables
        description: Retrieve variables
        call: n8n-variables.getvariables
        with:
          limit: rest.limit
          cursor: rest.cursor
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/variables/{id}
      name: variables-id
      description: REST surface for variables-id.
      operations:
      - method: DELETE
        name: deletevariable
        description: Delete a variable
        call: n8n-variables.deletevariable
        with:
          id: rest.id
        outputParameters:
        - type: object
          mapping: $.
      - method: PUT
        name: updatevariable
        description: Update a variable
        call: n8n-variables.updatevariable
        with:
          id: rest.id
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: n8n-variables-mcp
    port: 9090
    transport: http
    description: MCP adapter for n8n Public API — Variables. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: create-variable
      description: Create a variable
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: n8n-variables.createvariable
      outputParameters:
      - type: object
        mapping: $.
    - name: retrieve-variables
      description: Retrieve variables
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: n8n-variables.getvariables
      with:
        limit: tools.limit
        cursor: tools.cursor
      outputParameters:
      - type: object
        mapping: $.
    - name: delete-variable
      description: Delete a variable
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: n8n-variables.deletevariable
      with:
        id: tools.id
      outputParameters:
      - type: object
        mapping: $.
    - name: update-variable
      description: Update a variable
      hints:
        readOnly: false
        destructive: false
        idempotent: true
      call: n8n-variables.updatevariable
      with:
        id: tools.id
      outputParameters:
      - type: object
        mapping: $.