UnderChat MCP by usefulapi

Install

Pick the AI app you use, then copy the settings.

Passed 4/4 checks · What you ask goes through the maker’s server (underchat.usefulapi.io) · ✓ Commands checked Nov 13, 2026

claude mcp add --transport http --scope user underchat https://underchat.usefulapi.io/mcp

{
  "mcpServers": {
    "underchat": {
      "url": "https://underchat.usefulapi.io/mcp"
    }
  }
}

{
  "servers": {
    "underchat": {
      "type": "http",
      "url": "https://underchat.usefulapi.io/mcp"
    }
  }
}

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 11, 2026. The maker wrote them, not us; we show them as plain text.

• underchat_list_chats

  List conversations in one state (my_chats = the executor's own chats; or queue, in_chat, closed, and so on), with optional filters. GET /chat.

• underchat_search_chats

  Search conversations by contact name or phone. GET /chat/search.

• underchat_get_chat_messages

  Read the message history of one chat, newest first, with paging. GET /chat/{chat_id}.

• underchat_search_chat_messages

  Search the messages of one chat for a text. GET /chat/{chat_id}/search.

• underchat_get_chat_details

  Get one chat with its state, assigned channel, user, sector and labels. GET /chat/{chat_id}/details.

• underchat_get_unread_summary

  Count the unread messages for the executor. GET /chat/unread-summary.

• underchat_list_channels

  List the account's channels (for example WhatsApp numbers) with their status. Use the ids as channel or worker ids in other tools. GET /chat/channels-status.

• underchat_list_workers

  List the workers (channels) that can receive or transfer a chat, for filters and transfers. GET /chat/workers.

• underchat_list_contacts

  List the account's chat contacts with paging and filters. GET /chat/contacts.

• underchat_get_contact

  Get one chat contact by id. GET /chat/contacts/{contact_id}.

• underchat_find_contact_by_phone

  Find the chat contact that has a phone number. GET /chat/contacts/by-phone.

• underchat_list_label_templates

  List the label templates (etiquetas) of the account. GET /label-template.

• underchat_list_sectors

  List the sectors (setores) of the account. GET /sector.

• underchat_list_users

  List the users (attendants) of the account with paging and filters. GET /user.

• underchat_get_user

  Get one user of the account by id, with the status and access group. GET /user/{user_id}.

• underchat_send_text_message

  Send a WhatsApp text message into an existing chat, as the executor. The customer receives it. POST /chat/{chat_id} with type=text.

• underchat_update_chat_status

  Move a chat to another state, for example closed, queue or in_chat. Closing ends the attendance for the customer. PATCH /chat/{chat_id}/status.

• underchat_transfer_chat

  Transfer a chat to another worker (channel), user or sector. Set at least one of worker_id, user_id or sector_id. POST /chat/{chat_id}/transfer.

• underchat_set_chat_labels

  Send a list of label template ids to a chat. The API decides whether the list replaces or adds to the current labels; check the chat after the call. PATCH /chat/{chat_id}/label.

• underchat_create_contact

  Create a chat contact with a name and a phone number. POST /chat/contacts.

• underchat_update_contact

  Change the fields you send for one chat contact. Fields you omit stay as they are. PATCH /chat/contacts/{contact_id}.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 14, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

• ✓ Pass

  Still maintained

  Code last changed today

• – Not applicable

  Has a licence

  Not applicable: a cloud server run by the owner of usefulapi.io; you don't run code from the repo

• ✓ Pass

  Endpoint responds

  Responded in 20 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 21 tool descriptions and found no hidden instructions to the AI

User reviews

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Compared with others in Chat & emaili

• More stars than 0% of the other 2037 servers in this category
• Published to the registry more recently than 96% of the other 2037 servers in this category
• Basic checks equal to or better than 100% of the other 2037 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

{