> ## Documentation Index
> Fetch the complete documentation index at: https://docs.droyd.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# POST /v1/workflows/nodes/create

Create a workflow node and optional parent edges.

Auth: Droyd API key or signed-in user bearer token. Alias: `POST /api/v1/workflows/nodes/create`. `key` and `client_key` are scoped to the workflow. Benchmark linkage fields must refer to resources owned by the caller.

`title` is required for every node type. For `analysis` and `experiment` nodes,
use a concise 2-5 word finding or mechanism name; put the detailed reasoning in
`full_analysis` or `hypothesis`. This keeps workflow activity and node dialogs
scannable.


## OpenAPI

````yaml api-key.openapi.json POST /v1/workflows/nodes/create
openapi: 3.1.0
info:
  title: Droyd API-key Automation API
  version: 1.0.0
  description: >-
    The production API contract for Droyd API-key automations. It contains only
    operations that accept a Droyd API key. `/v1` is canonical; `/api/v1` is a
    compatibility alias.
servers: []
security:
  - droydApiKeyBearer: []
  - droydApiKeyHeader: []
tags:
  - name: Identity
    description: Account-scoped automation identity and onboarding state.
  - name: Workflows
    description: Caller-owned workflows and research nodes.
  - name: Competitions
    description: Competition readiness, submissions, and race entries.
  - name: Experiments
    description: Experiments, artifacts, agent versions, and evaluations.
  - name: Usage
    description: Caller-owned evaluation usage.
  - name: Billing
    description: Caller-owned prepaid credit balances and funding.
paths:
  /v1/workflows/nodes/create:
    post:
      tags:
        - Workflows
      summary: Create an experiment or analysis node.
      operationId: createWorkflowNode
      requestBody:
        $ref: '#/components/requestBodies/NodeCreate'
      responses:
        '201':
          $ref: '#/components/responses/Success'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '409':
          $ref: '#/components/responses/Conflict'
        '500':
          $ref: '#/components/responses/ServerError'
components:
  requestBodies:
    NodeCreate:
      required: true
      content:
        application/json:
          schema:
            type: object
            required:
              - workflow_id
              - title
              - node_type
            properties:
              workflow_id:
                type: string
                format: uuid
              title:
                type: string
              node_type:
                type: string
                enum:
                  - experiment
                  - plan
                  - idea
                  - analysis
              status:
                type: string
                enum:
                  - created
                  - in_progress
                  - complete
                  - failed
              parent_node_ids:
                type: array
                items:
                  type: string
                  format: uuid
              edge_type:
                type: string
                enum:
                  - derived_from
                  - refutes
                  - extends
                  - synthesizes
                  - inspired_by
              client_key:
                type: string
              hypothesis:
                type: string
              full_analysis:
                type: string
              result_data:
                type: object
                additionalProperties: true
              config:
                type: object
                additionalProperties: true
  responses:
    Success:
      description: Successful response.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SuccessEnvelope'
    BadRequest:
      description: Invalid request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    Forbidden:
      description: Account state or route policy prevents the request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    NotFound:
      description: The resource is missing or not owned by the API-key account.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    Conflict:
      description: The resource state or idempotency key conflicts with the request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    ServerError:
      description: >-
        The request could not be completed. Retry only when the operation's
        idempotency contract permits it.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
  schemas:
    SuccessEnvelope:
      type: object
      required:
        - ok
      properties:
        ok:
          const: true
      additionalProperties: true
    ErrorEnvelope:
      type: object
      required:
        - ok
        - error
      properties:
        ok:
          const: false
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
            message:
              type: string
  securitySchemes:
    droydApiKeyBearer:
      type: http
      scheme: bearer
      bearerFormat: Droyd API key
      description: A Droyd API key in the Authorization Bearer slot.
    droydApiKeyHeader:
      type: apiKey
      in: header
      name: x-droyd-api-key
      description: A Droyd API key when Authorization is absent.

````