> ## Documentation Index > Fetch the complete documentation index at: https://docs.replicas.dev/llms.txt > Use this file to discover all available pages before exploring further. # List environment MCPs ## OpenAPI ````yaml /openapi.json get /v1/environments/{environment_id}/mcps openapi: 3.1.0 info: title: Replicas API version: 2.0.0 description: >- Create and control workspaces, and manage the environments, automations, and learnings they run with. servers: - url: https://api.replicas.dev description: Production API security: - apiKey: [] tags: - name: Replica description: >- A replica is a Replicas workspace: a cloud sandbox where a coding agent works on your repositories. - name: Chats description: Manage the agent chats inside a replica. - name: Message queue description: Messages waiting for the agent to finish its turn. - name: Commands and terminals description: Run commands and open shells in a replica. - name: Pull requests description: Inspect and act on pull requests a replica opened. - name: Previews description: Public URLs for ports in a replica. - name: Canvas description: Plans, reports, and other files agents produce. - name: Sharing description: Add replicas to members' Shared view. - name: Environments description: >- Environments define what a workspace starts with. The `global` environment applies to every workspace. - name: Environment variables description: Variables injected into workspaces. - name: Environment files description: Files written into workspaces. - name: Environment skills description: Agent skills installed into workspaces. - name: Environment MCPs description: MCP servers available to workspace agents. - name: Hooks description: Scripts that run when warm pool snapshots build and when workspaces start. - name: Warm pools description: Pre-built workspaces that start faster. - name: Automations description: Run agents on schedules and events. - name: Repositories description: Repositories and repository sets connected to the organization. - name: Learnings description: Organization skills every workspace agent loads. - name: Agent credentials description: >- API keys and endpoints that coding agents use. Connect Claude, Codex, and Muse subscriptions with the CLI. - name: Plugins description: Connect integrations that workspace agents can use. - name: Organization description: Who you are and who is in your organization. - name: Media description: Screenshots, recordings, and other files workspaces produce. - name: Slack description: Route Slack threads to workspaces. - name: Workspace identity description: OIDC keys for verifying workspace identity tokens. paths: /v1/environments/{environment_id}/mcps: get: tags: - Environment MCPs summary: List environment MCPs operationId: listEnvironmentMcps parameters: - name: environment_id in: path required: true description: Environment UUID, or the literal string `global`. schema: type: string - $ref: '#/components/parameters/ApiVersion' responses: '200': description: Successful response content: application/json: schema: $ref: '#/components/schemas/ListEnvironmentMcpsResponse' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '500': $ref: '#/components/responses/InternalServerError' components: parameters: ApiVersion: name: X-Replicas-Api-Version in: header description: >- API version. `2026-10-07` returns `snake_case` responses. See [versioning](/features/api#versioning). required: false schema: type: string enum: - '2026-10-07' schemas: ListEnvironmentMcpsResponse: type: object properties: environment_mcps: type: array items: $ref: '#/components/schemas/EnvironmentMcp' required: - environment_mcps EnvironmentMcp: type: object description: An MCP (Model Context Protocol) server attached to an environment. properties: id: type: string format: uuid organization_id: type: string format: uuid environment_id: type: string format: uuid name: type: string description: >- MCP name (1–64 chars, must match `^[A-Za-z0-9][A-Za-z0-9_-]{0,63}$`; cannot start with reserved prefixes `relay-`, `replicas-`, or `subagents`) transport: type: string enum: - stdio - http - sse config: $ref: '#/components/schemas/EnvironmentMcpConfig' oauth: type: object description: Connection state for MCPs using OAuth. Returned when listing MCPs. properties: status: type: string enum: - disconnected - connected - reconnect_required reason: type: string nullable: true description: Why a reconnect is required required: - status - reason created_at: type: string format: date-time updated_at: type: string format: date-time required: - id - organization_id - environment_id - name - transport - config - created_at - updated_at Error: type: object properties: error: type: string description: Error message details: type: - string - 'null' description: Additional error details code: type: string description: Machine-readable error code when available required: - error EnvironmentMcpConfig: description: >- MCP transport-specific configuration. Discriminate by the parent `transport` field. oneOf: - $ref: '#/components/schemas/EnvironmentMcpStdioConfig' - $ref: '#/components/schemas/EnvironmentMcpHttpConfig' EnvironmentMcpStdioConfig: type: object description: >- Configuration for an MCP that runs a local subprocess (`transport: stdio`). properties: command: type: string description: Executable to run (e.g. `npx`) args: type: array items: type: string description: Arguments passed to the command env: type: object additionalProperties: type: string description: Environment variables for the subprocess required: - command - args - env EnvironmentMcpHttpConfig: type: object description: >- Configuration for an MCP reached over HTTP or SSE (`transport: http` or `transport: sse`). properties: auth: $ref: '#/components/schemas/McpWorkloadAuth' url: type: string format: uri description: MCP server URL headers: type: object additionalProperties: type: string description: Headers attached to every request (e.g. `Authorization`) required: - url - headers McpWorkloadAuth: description: >- Authenticate using a short-lived workspace identity token minted for the given audience, or an OAuth account connected in the app. oneOf: - type: object properties: type: type: string enum: - workspace_identity audience: type: string description: Audience (`aud`) the MCP server verifies, usually its URL. required: - type - audience - type: object properties: type: type: string enum: - oauth required: - type responses: BadRequest: description: Bad request - Missing or invalid parameters content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/Error' InternalServerError: description: Internal server error content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: apiKey: type: http scheme: bearer description: Organization or personal API key from **Settings → API Keys**. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.