generated: '2026-09-11'
method: searched
source: https://entergram.com/llms.txt
name: Entergram Telegram MCP Server
description: Hosted Model Context Protocol server for personal Telegram accounts. Connects MCP-compatible
  AI agents (Claude, ChatGPT, Cursor, Windsurf, Cline, n8n, Make.com) to a shared Entergram Telegram CRM
  workspace so agents can read chats and message history, look up contact custom fields, leave internal
  chat comments, create and update tickets, fire broadcasts from saved templates, and update tags / custom-field
  values — scoped by workspace-granular OAuth scopes.
deployment:
  mode: remote
  endpoint: https://mcp.entergram.com/mcp
  auth: oauth
  verified: probed
  probe_prior: (never probed)
  probe: gated
  probe_why: RFC 9728 challenge on the MCP path only
  checked: '2026-09-11'
  source: claimed-backlog re-probe 2026-09-11
auth:
  type: oauth2
  flow: authorization_code + PKCE
  authorization_server: https://app.entergram.com
  authorization_endpoint: https://app.entergram.com/oauth/authorize
  token_endpoint: https://app.entergram.com/oauth/token
  registration_endpoint: https://app.entergram.com/oauth/register
  dynamic_client_registration: true
  protected_resource_metadata: https://mcp.entergram.com/.well-known/oauth-protected-resource
  authorization_server_metadata: https://mcp.entergram.com/.well-known/oauth-authorization-server
introspection:
  tools_list: gated
  probe:
    method: POST tools/list
    url: https://mcp.entergram.com/mcp
    http_status: 401
    www_authenticate: Bearer error="invalid_token", error_description="Missing Authorization header"
  note: tools/list requires an authenticated OAuth bearer token, so per-tool inputSchemas could not be
    introspected anonymously. The tool surface below is taken from the provider-published capability list
    in llms.txt and the OAuth scopes advertised in the protected-resource document; input schemas require
    authenticated introspection.
tools:
- name: list/search chats
  scopes:
  - chats.read
- name: read message history
  scopes:
  - messages.read
- name: look up contact custom fields
  scopes:
  - contacts.read
  - custom_fields.read
  - chat_custom_fields.read
- name: leave internal chat comments
  scopes:
  - chats.write
- name: create and update tickets
  scopes:
  - tickets.read
  - tickets.write
- name: fire broadcasts from saved templates
  scopes:
  - messages.write
- name: add or remove tags / update custom field values
  scopes:
  - custom_fields.write
  - chat_custom_fields.write
docs:
- https://www.entergram.com/mcp
- https://www.entergram.com/telegram-mcp
- https://www.entergram.com/help-center/security-developers/claude-mcp-connector
supported_clients:
- Claude Desktop / Claude Code / Claude.ai
- ChatGPT (MCP)
- Cursor
- Windsurf
- Cline
- n8n
- Make.com