AxonFlow Cost Management API

openapi: 3.2.0
info:
  title: Axonflow Cost Management API
  version: 11.1.0
  contact:
    name: AxonFlow Support
    url: https://getaxonflow.com/support
  license:
    name: Business Source License 1.1
    url: https://github.com/getaxonflow/axonflow/blob/main/LICENSE
  description: 'Operations tagged Cost Management across 2 of this provider''s published API definitions: axonflow-orchestrator-api.yaml, axonflow-orchestrator-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://orchestrator.getaxonflow.com
  description: Production (SaaS)
- url: http://localhost:8081
  description: Local Development
tags:
- name: Cost Management
paths:
  /api/v1/plans/estimate:
    post:
      tags:
      - Cost Management
      summary: Estimate the cost of a plan before running it
      description: 'Estimate token usage and cost for a list of workflow steps. `breakdown`

        is returned on Evaluation tier and above; Community receives the total

        only. A response header warns when the daily estimate quota is 80%

        consumed.'
      operationId: estimatePlanCost
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CostEstimateRequest'
      responses:
        '200':
          description: Cost estimate
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CostEstimateResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          description: Tenant scope required. NOTE - this refusal uses a third envelope, `{error, code, message}`.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
                    example: TENANT_REQUIRED
                  message:
                    type: string
        '429':
          description: Daily cost-estimate quota exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CodedErrorResponse'
        '500':
          $ref: '#/components/responses/InternalError'
    servers:
    - url: https://orchestrator.getaxonflow.com
      description: Production (SaaS)
    - url: http://localhost:8081
      description: Local Development
  /api/v1/plans/{id}/cost:
    get:
      tags:
      - Cost Management
      summary: Get the cost estimate for a stored plan
      operationId: getPlanCost
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      - name: X-Org-ID
        in: header
        required: true
        description: Organization scope. Stamped by the AxonFlow Agent gateway from the validated client credential.
        schema:
          type: string
      responses:
        '200':
          description: Cost estimate for the plan, with `plan_id` populated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CostEstimateResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          description: Daily cost-estimate quota exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CodedErrorResponse'
        '500':
          $ref: '#/components/responses/InternalError'
        '503':
          description: Planning is not enabled on this deployment
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    servers:
    - url: https://orchestrator.getaxonflow.com
      description: Production (SaaS)
    - url: http://localhost:8081
      description: Local Development
components:
  schemas:
    CostEstimateResponse:
      type: object
      properties:
        plan_id:
          type: string
          description: 'Present only on GET /api/v1/plans/{id}/cost. The estimate endpoint

            has no plan to name and omits it.

            '
        estimated_cost_usd:
          type: number
          format: double
        currency:
          type: string
        breakdown:
          type: array
          description: 'Per-step breakdown. Populated for Evaluation tier and above; omitted

            on Community, where only the total is returned.

            '
          items:
            $ref: '#/components/schemas/StepCostEstimate'
      required:
      - estimated_cost_usd
      - currency
    WorkflowStep:
      type: object
      required:
      - name
      - type
      properties:
        name:
          type: string
        type:
          type: string
          enum:
          - mcp_query
          - llm
          - api_call
          - transform
        connector:
          type: string
        query:
          type: string
        prompt:
          type: string
        dependencies:
          type: array
          items:
            type: string
    CodedErrorResponse:
      type: object
      description: 'The CODED error envelope: `{error: {code, message}}`, where `code` is a

        screaming-snake string enum. This is what the per-handler `writeError`

        methods emit across the policy API, the LLM provider API, the agents,

        template, unified-execution and media-governance APIs, and every

        handler in the RBI module (362 call sites in total).


        It is one of TWO error SHAPES this document describes. `code` is a

        STRING on this envelope; it is never an HTTP status integer.

        `LLMProviderAPIError` is this shape with the `code` enum constrained to

        the five values the LLM-provider handlers emit.

        '
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              description: Machine-readable error code, screaming snake case.
              example: NOT_FOUND
            message:
              type: string
          required:
          - code
          - message
      required:
      - error
    StepCostEstimate:
      type: object
      properties:
        step_name:
          type: string
        provider:
          type: string
        model:
          type: string
        estimated_tokens_in:
          type: integer
        estimated_tokens_out:
          type: integer
        estimated_cost_usd:
          type: number
          format: double
    CostEstimateRequest:
      type: object
      properties:
        provider:
          type: string
        model:
          type: string
        steps:
          type: array
          items:
            $ref: '#/components/schemas/WorkflowStep'
      required:
      - steps
    ErrorResponse:
      type: object
      description: 'The FLAT error envelope: `{success, error}`. This is what

        `sendErrorResponse` emits, which is the orchestrator''s dominant error

        writer (240 call sites), so it is the shape of every error from the

        core request, audit, plan, workflow, execution and connector surfaces.


        It is one of THREE error SHAPES this document describes. See

        `CodedErrorResponse` and `TripletErrorResponse` for the other two, and

        the note on `components.responses` for why there is more than one.

        `LLMProviderAPIError` is a code-constrained refinement of the coded

        shape, not a fourth shape.


        This paragraph said "TWO" until issue #3941. `TripletErrorResponse` was

        added by the #3901 reconciliation and this sentence was not updated with

        it, so the document undercounted its own families — which is the same

        defect one level up as the operations that named the wrong one.

        '
      properties:
        success:
          type: boolean
          example: false
        error:
          type: string
          description: Human-readable message. There is no machine-readable code on this envelope.
      required:
      - success
      - error
  responses:
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error: Invalid request body
    InternalError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error: Internal server error
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error: Resource not found
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: OAuth2-style client credentials (clientId:clientSecret)
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Enterprise JWT token (see /scripts/generate-jwt.sh)
x-refined-from:
- axonflow-orchestrator-api.yaml
- axonflow-orchestrator-openapi.yml