Codebase Inference API

The Inference API from Codebase — 1 operation(s) for inference.

GitHub OpenAPI

Operations 1

POST /api/v1/inference/chat LLM chat completion #

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OpenAPI Specification

codebase-design-inference-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Codebase Design Inference API
  version: 1.0.0
  contact:
    email: admin@aipowergrid.io
  description: 'Operations tagged Inference across 2 of this provider''s published API definitions: codebase-design-openapi.json, codebase-design-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: http://localhost:3001
  description: Current
- url: https://dev.codebase.design
  description: Development
- url: https://staging.codebase.design
  description: Staging
- url: https://codebase.design
  description: Production
security:
- ApiKeyAuth: []
- BearerAuth: []
tags:
- name: Inference
paths:
  /api/v1/inference/chat:
    post:
      summary: LLM chat completion
      description: Proxy a chat completion request to the configured LLM provider. Supports streaming (SSE) and non-streaming responses. Automatic fallback rechecks model access and balance; each attempt is billed at its served model. Streaming responses end with token usage and a codebase_billing receipt before [DONE].
      tags:
      - Inference
      security:
      - ApiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - model
              - messages
              properties:
                model:
                  type: string
                  description: Model ID from /api/v1/models
                messages:
                  type: array
                  items:
                    type: object
                    required:
                    - role
                    - content
                    properties:
                      role:
                        type: string
                        enum:
                        - system
                        - user
                        - assistant
                      content:
                        type: string
                stream:
                  type: boolean
                  default: false
                temperature:
                  type: number
                  minimum: 0
                  maximum: 2
                  default: 0.7
                max_tokens:
                  type: integer
                  default: 4096
      responses:
        '200':
          description: Chat completion (JSON or SSE stream)
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                  object:
                    type: string
                  created:
                    type: integer
                  model:
                    type: string
                    description: Model that served the final response; may differ after automatic fallback.
                  choices:
                    type: array
                    items:
                      type: object
                      properties:
                        index:
                          type: integer
                        message:
                          type: object
                          properties:
                            role:
                              type: string
                            content:
                              type: string
                        finish_reason:
                          type: string
                  usage:
                    type: object
                    properties:
                      prompt_tokens:
                        type: integer
                      completion_tokens:
                        type: integer
                      total_tokens:
                        type: integer
                      prompt_tokens_details:
                        type: object
                        properties:
                          cached_tokens:
                            type: integer
                          cache_write_tokens:
                            type: integer
                  codebase_billing:
                    type: object
                    properties:
                      credits_charged:
                        type: integer
                        nullable: true
                        description: Acknowledged charge across attempts; null when settlement could not be confirmed.
                      usage_estimated:
                        type: boolean
                        description: True when any attempt was charged from its reservation because provider usage was unavailable. Token usage itself contains only reported counts.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          description: 'The account cannot pay for the call (`error: insufficient_credits`), or the

            API key has used its spending limit (`code: key-budget-exhausted`). The call''s

            actual cost is debited after it finishes and counts toward the key''s limit, so

            a key can end past its limit by at most one call''s cost.

            '
        '500':
          description: Internal server error
        '503':
          description: Credit service could not authorize an automatic fallback. No request is sent to that fallback model.
      x-codeSamples:
      - lang: TypeScript
        label: TypeScript
        source: "// Auth: X-API-Key header.\nconst apiKey = process.env.CODEBASE_API_KEY!;\n\nconst res = await fetch('https://codebase.design/api/v1/inference/chat', {\n  method: 'POST',\n  headers: {\n    'X-API-Key': apiKey,\n    'Content-Type': 'application/json',\n  },\n  body: JSON.stringify({\n    \"model\": \"string\",\n    \"messages\": [\n      {\n        \"role\": \"system\",\n        \"content\": \"string\"\n      }\n    ],\n    \"stream\": false,\n    \"temperature\": 0.7,\n    \"max_tokens\": 4096\n  })\n});\n\nif (!res.ok) throw new Error(`${res.status} ${await res.text()}`);\nconst data = await res.json();\nconsole.log(data);"
      - lang: Python
        label: Python
        source: "import os\nimport requests\n\napi_key = os.environ['CODEBASE_API_KEY']\n\nresponse = requests.post(\n    'https://codebase.design/api/v1/inference/chat',\n    headers={\n        'X-API-Key': api_key,\n        'Content-Type': 'application/json',\n    },\n    json={\n        \"model\": \"string\",\n        \"messages\": [\n            {\n                \"role\": \"system\",\n                \"content\": \"string\"\n            }\n        ],\n        \"stream\": false,\n        \"temperature\": 0.7,\n        \"max_tokens\": 4096\n    }\n)\nresponse.raise_for_status()\nprint(response.json())"
      - lang: Rust
        label: Rust
        source: "// Cargo.toml:\n//   reqwest    = { version = \"0.12\", features = [\"json\"] }\n//   serde_json = \"1\"\n//   tokio      = { version = \"1\", features = [\"full\"] }\n\nuse std::env;\n\n#[tokio::main]\nasync fn main() -> Result<(), Box<dyn std::error::Error>> {\n    let api_key = env::var(\"CODEBASE_API_KEY\")?;\n    let client = reqwest::Client::new();\n\n    let res = client\n        .post(\"https://codebase.design/api/v1/inference/chat\")\n        .header(\"X-API-Key\", api_key)\n        .header(\"Content-Type\", \"application/json\")\n        .json(&serde_json::json!({\n            \"model\": \"string\",\n            \"messages\": [\n                {\n                    \"role\": \"system\",\n                    \"content\": \"string\"\n                }\n            ],\n            \"stream\": false,\n            \"temperature\": 0.7,\n            \"max_tokens\": 4096\n        }))\n        .send()\n        .await?;\n\n    let data: serde_json::Value = res.json().await?;\n    println!(\"{:#?}\", data);\n    Ok(())\n}"
      operationId: postApiV1InferenceChat
      x-operation-id-source: derived
    servers:
    - url: http://localhost:3001
      description: Current
    - url: http://localhost:3001
      description: Local development
    - url: https://dev.codebase.design
      description: Development
    - url: https://staging.codebase.design
      description: Staging
    - url: https://codebase.design
      description: Production
components:
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
    Unauthorized:
      description: Missing or invalid authentication
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: Revocable API key (cb_live_... or cb_test_...)
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth2 access token
x-refined-from:
- codebase-design-openapi.json
- codebase-design-openapi.yml