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

# Bind a model provider to the gateway

> Creates a GatewayProviderCredential binding. Reuses the ModelProvider API key already configured in project settings; this only adds gateway-specific settings (rate limits, rotation, fallback priority).



## OpenAPI

````yaml POST /api/gateway/v1/providers
openapi: 3.1.0
info:
  title: LangWatch API
  version: 1.0.0
  description: LangWatch openapi spec
servers:
  - url: https://app.langwatch.ai
security:
  - project_api_key: []
paths:
  /api/gateway/v1/providers:
    post:
      tags:
        - Providers
      summary: Bind a model provider to the gateway
      description: >-
        Creates a GatewayProviderCredential binding. Reuses the ModelProvider
        API key already configured in project settings; this only adds
        gateway-specific settings (rate limits, rotation, fallback priority).
      operationId: postApiGatewayV1Providers
      parameters: []
      responses:
        '201':
          description: Binding created
          content:
            application/json:
              schema:
                type: object
                properties:
                  provider_credential:
                    type: object
                    properties:
                      id:
                        type: string
                    required:
                      - id
                required:
                  - provider_credential
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '422':
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
components:
  securitySchemes:
    project_api_key:
      type: apiKey
      in: header
      name: X-Auth-Token
      description: >-
        Project API key for sending traces and accessing project-scoped
        resources. Format: sk-lw-... (no underscore). Obtain one by creating a
        project via the Admin API or the LangWatch UI.

````