# List available parsers

Source: https://langbot.app/docs/en/api-reference/parsers/list-available-parsers

## GET /api/v1/knowledge/parsers

List all plugin-provided file parsers. Use mime_type to filter the results.

Authentication (OpenAPI security alternatives; OR between entries, AND within each entry): [{"ApiKeyAuth":[]},{"BearerAuth":[]}]. See components.securitySchemes below for header names, schemes and scopes.

Servers: http://localhost:5300. Use your own LangBot instance, not the documentation host.

[Complete en OpenAPI specification](https://langbot.app/docs/openapi/service-api-en.json)

## Operation contract

The OpenAPI subset below preserves path/operation parameters, request bodies, response codes, media types, examples and schemas. All referenced components are included transitively; resolve local JSON pointers against this document. The operation is preserved verbatim, including security overrides.

```json
{
  "openapi": "3.0.3",
  "info": {
    "title": "LangBot Service API",
    "description": "LangBot external service API documentation. These endpoints support API Key authentication for programmatic access to LangBot resources.\n\n**Authentication:**\n- User Token (via `Authorization: Bearer <token>`)\n- API Key (via `X-API-Key: <key>` or `Authorization: Bearer <key>`)\n\nAll endpoints in this document support both authentication methods unless otherwise noted.\n",
    "version": "4.9.5",
    "contact": {
      "name": "LangBot",
      "url": "https://langbot.app"
    },
    "license": {
      "name": "AGPL-3.0",
      "url": "https://github.com/langbot-app/LangBot/blob/master/LICENSE"
    }
  },
  "servers": [
    {
      "url": "http://localhost:5300",
      "description": "Local development server"
    }
  ],
  "security": [
    {
      "ApiKeyAuth": []
    },
    {
      "BearerAuth": []
    }
  ],
  "paths": {
    "/api/v1/knowledge/parsers": {
      "get": {
        "tags": [
          "Parsers"
        ],
        "summary": "List available parsers",
        "description": "List all plugin-provided file parsers. Use mime_type to filter the results.",
        "parameters": [
          {
            "name": "mime_type",
            "in": "query",
            "required": false,
            "schema": {
              "type": "string"
            },
            "description": "Filter parsers by MIME type"
          }
        ],
        "responses": {
          "200": {
            "description": "Successful response",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "code": {
                      "type": "integer",
                      "example": 0
                    },
                    "data": {
                      "type": "object",
                      "properties": {
                        "parsers": {
                          "type": "array",
                          "items": {
                            "type": "object"
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "ApiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "X-API-Key"
      },
      "BearerAuth": {
        "type": "http",
        "scheme": "bearer"
      }
    }
  }
}
```