MCP server

Robly MCP by usefulapi

io.usefulapi/robly

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Find Robly contacts and lists; subscribe, update and move contacts between lists.

Website Source

At a glance

Type

MCP server

Publisher

usefulapi.io (verified by the MCP Registry)

Status

Working at last check

Tools

13

Token cost

About 3,184 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http robly https://robly.usefulapi.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.robly]
url = "https://robly.usefulapi.io/mcp"

Gemini CLI

{"mcpServers":{"robly":{"httpUrl":"https://robly.usefulapi.io/mcp"}}}

Cursor

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

VS Code

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

Antigravity

agy mcp add robly https://robly.usefulapi.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"robly","server_url":"https://robly.usefulapi.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"robly","server_url":"https://robly.usefulapi.io/mcp"}

Tools

• robly_add_contact_to_list ~275 tokens
  WRITE: put an existing contact on a list. With include_autoresponder Robly triggers autoresponders matching the newly listed contact, which EMAIL the contact. POST /api/v1/contacts/add_sub_list.
• robly_check_list_membership ~216 tokens
  Whether one contact (by email or member id) is on one list. GET /api/v1/contacts/exists_in_sub_list.
• robly_create_sub_list ~128 tokens
  WRITE: create a new, empty sub list. Robly does not say whether a list with the same name already exists, so check robly_list_sub_lists first. POST /api/v1/sub_lists/add_sub_list.
• robly_find_contact ~251 tokens
  Look up one contact by email address or member id: status, subscription date, sign-up source and, on request, the lists and data fields. Returns found: false when Robly has no such contact. GET /api/v1/contacts/search.
• robly_get_signup_form ~114 tokens
  The data fields and sub lists a new subscriber can be given through the sign-up API (public ones unless include_all is true). GET /api/v1/sign_up/show.
• robly_list_contacts ~409 tokens
  List contacts (members) of the Robly account, newest first as Robly orders them: id, email, subscribed/deleted flags, subscription date, sign-up source, timestamps. Filter by status, by list, or by last-updated time; optionally include each contact's lists and data fields. Pages with limit (max 100)
• robly_list_fields ~135 tokens
  List the contact data fields (First Name, Last Name, custom fields): id, label, type, required flag and the user_tag that robly_subscribe_contact and robly_update_contact use as the field key. GET /api/v1/fields/show.
• robly_list_sub_lists ~130 tokens
  List the account's sub lists (the lists contacts belong to): id, name, position, timestamps. Public lists only unless include_all is true. Use the ids for list filters and for adding contacts. GET /api/v1/sub_lists/show.
• robly_remove_contact_from_list ~217 tokens
  WRITE: take a contact off one list (the contact itself is kept). POST /api/v1/contacts/remove_sub_list.
• robly_rename_sub_list ~136 tokens
  WRITE: rename a sub list. POST /api/v1/sub_lists/rename_sub_list.
• robly_subscribe_contact ~492 tokens
  WRITE: add a new subscribed contact (or re-submit an existing one through the sign-up form). With double_opt_in Robly EMAILS the contact a confirmation link first; with welcome_email it EMAILS the welcome message right away; with include_autoresponder it triggers matching autoresponders, which email
• robly_unsubscribe_contact ~205 tokens
  WRITE: unsubscribe a contact so Robly stops emailing it. Robly's API cannot undo this: an unsubscribed contact can only come back through a sign-up form. Use it for a contact that asked to stop. POST /api/v1/contacts/unsubscribe.
• robly_update_contact ~476 tokens
  WRITE: change an existing contact's data fields and/or list memberships in one call. Name the contact by member_id (look it up with robly_find_contact). `fields` are keyed by user_tag (robly_list_fields); the email address cannot be changed here. add_to_list_ids puts the contact on those lists, remo

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