Vercel

Vercel Models API

List available AI models

Documentation GitHub OpenAPI

Operations 1

GET /v1/models List Models #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Vercel AI Gateway Models API
  description: The Vercel AI Gateway provides a unified API to access hundreds of AI models from multiple providers (Anthropic, OpenAI, Google, Meta, Mistral, and more) through a single endpoint. Features include one API key for hundreds of models, spend monitoring, automatic retries and fallbacks, provider routing by cost/latency/throughput, embeddings support, and zero markup on token pricing. Compatible with the AI SDK, OpenAI SDK, and Anthropic SDK.
  version: 1.0.0
  contact:
    name: Vercel Support
    url: https://vercel.com/help
  termsOfService: https://vercel.com/legal/terms
servers:
- url: https://ai-gateway.vercel.sh
  description: Vercel AI Gateway
security:
- BearerAuth: []
tags:
- name: Models
  description: List available AI models
paths:
  /v1/models:
    get:
      operationId: listModels
      summary: List Models
      description: Returns all available AI models accessible through the Vercel AI Gateway. Compatible with the OpenAI models API format.
      tags:
      - Models
      responses:
        '200':
          description: List of available models
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelsResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Model:
      type: object
      properties:
        id:
          type: string
          description: Model identifier in format 'provider/model-name' (e.g., 'anthropic/claude-opus-4.6')
        object:
          type: string
          default: model
        created:
          type: integer
          description: Unix timestamp
        owned_by:
          type: string
          description: Provider name
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            message:
              type: string
            type:
              type: string
            code:
              type: string
    ModelsResponse:
      type: object
      properties:
        object:
          type: string
          default: list
        data:
          type: array
          items:
            $ref: '#/components/schemas/Model'
  responses:
    Unauthorized:
      description: Missing or invalid Bearer token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Vercel AI Gateway API key (AI_GATEWAY_API_KEY)