openapi: 3.0.3
info:
  title: Waxell Observe Cost Management API
  description: 'The Waxell Observe REST API exposes the AI agent governance and

    observability control plane. It is used by the `waxell-observe` Python

    SDK and Developer MCP server to record agent runs, log LLM calls and

    spans, evaluate runtime governance policies, manage prompts, and

    administer model cost tables.


    Endpoints are served from a tenant-specific control plane host

    (e.g. `https://acme.waxell.dev`) at the path prefix

    `/api/v1/observe/`. Authentication uses the same `wax_sk_` keys

    issued in the dashboard, presented either as `X-Wax-Key` or as a

    `Bearer` token.

    '
  version: '1.0'
  contact:
    name: Waxell
    url: https://waxell.ai/
  license:
    name: Proprietary
servers:
- url: https://{tenant}.waxell.dev
  description: Tenant-specific Waxell control plane
  variables:
    tenant:
      default: acme
      description: Tenant subdomain provisioned for your organization
security:
- WaxKey: []
- BearerAuth: []
tags:
- name: Cost Management
  description: Model cost catalog and tenant-level overrides
paths:
  /api/v1/observe/model-costs/:
    get:
      tags:
      - Cost Management
      summary: List Model Costs
      description: Return the merged cost table (defaults plus tenant overrides) for known models.
      operationId: listModelCosts
      responses:
        '200':
          description: Cost table
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ModelCost'
  /api/v1/observe/model-costs/{model_id}/:
    put:
      tags:
      - Cost Management
      summary: Override Model Cost
      description: Set a tenant-specific input/output token price for a given model id.
      operationId: setModelCost
      parameters:
      - in: path
        name: model_id
        required: true
        schema:
          type: string
        description: Provider-qualified model identifier (e.g. `openai/gpt-4o`).
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ModelCost'
      responses:
        '200':
          description: Override saved
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelCost'
    delete:
      tags:
      - Cost Management
      summary: Remove Model Cost Override
      description: Remove a tenant-specific override and revert to the default cost.
      operationId: deleteModelCost
      parameters:
      - in: path
        name: model_id
        required: true
        schema:
          type: string
      responses:
        '204':
          description: Override removed
components:
  schemas:
    ModelCost:
      type: object
      required:
      - model_id
      properties:
        model_id:
          type: string
        provider:
          type: string
        input_cost_per_million:
          type: number
        output_cost_per_million:
          type: number
        currency:
          type: string
          default: USD
        is_override:
          type: boolean
  securitySchemes:
    WaxKey:
      type: apiKey
      in: header
      name: X-Wax-Key
      description: Waxell API key issued in the dashboard. Format `wax_sk_...`.
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: wax_sk
      description: Same `wax_sk_` key passed as a Bearer token.