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Robly MCP by usefulapi

io.usefulapi/roblyusefulapi.iostreamable-httpv1.0.0Scanned

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

13 tools: 7 can delete or cancel things and 6 only read.

Tools: 7 delete, 0 irreversible, 0 write, 6 read.
  • Reads private data · 5
  • Reads text others write · 13
  • Can send data out · 0
  • No findings

Anlyon alternative

7 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

13 tools

Deletes or cancels 7Claude Code: deny
  • robly_add_contact_to_listWRITE: put an existing contact on a list.Reads text others writeNo findings

    Why it is in this group

    • The name "robly_add_contact_to_list" says "add": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Add contact to list
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: true
  • robly_create_sub_listWRITE: create a new, empty sub list.Reads text others writeNo findings

    Why it is in this group

    • The name "robly_create_sub_list" says "create": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Create sub list
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: true
  • robly_remove_contact_from_listWRITE: take a contact off one list (the contact itself is kept).Reads text others writeNo findings

    Why it is in this group

    • The name "robly_remove_contact_from_list" says "remove": a word for removing or ending something.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    WRITE: take a contact off one list (the contact itself is kept). POST /api/v1/contacts/remove_sub_list.

    Annotations the server declares

    • title: Remove contact from list
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
  • robly_rename_sub_listWRITE: rename a sub list.Reads text others writeNo findings

    Why it is in this group

    • The name "robly_rename_sub_list" says "rename": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    WRITE: rename a sub list. POST /api/v1/sub_lists/rename_sub_list.

    Annotations the server declares

    • title: Rename sub list
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
  • robly_subscribe_contactWRITE: add a new subscribed contact (or re-submit an existing one through the sign-up form).Reads text others writeNo findings

    Why it is in this group

    • The name "robly_subscribe_contact" says "subscribe": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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 the contact. Only subscribe people who agreed to receive email. Field values go in `fields`, keyed by the user_tag from robly_list_fields (for example fname, lname). POST /api/v1/sign_up/generate.

    Annotations the server declares

    • title: Subscribe contact
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: true
  • robly_unsubscribe_contactWRITE: unsubscribe a contact so Robly stops emailing it.Reads text others writeNo findings

    Why it is in this group

    • The name "robly_unsubscribe_contact" says "unsubscribe": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Unsubscribe contact
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
  • robly_update_contactWRITE: change an existing contact's data fields and/or list memberships in one call.Reads text others writeNo findings

    Why it is in this group

    • The name "robly_update_contact" says "update": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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, remove_from_list_ids takes it off them. remove_from_all_other_lists also removes the contact from every list NOT named in add_to_list_ids (requires add_to_list_ids). include_autoresponder triggers autoresponders that EMAIL the contact. POST /api/v1/contacts/update_full_contact.

    Annotations the server declares

    • title: Update contact
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: true
Only reads 6Show 6 read-only tools
  • robly_check_list_membershipWhether one contact (by email or member id) is on one list.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "robly_check_list_membership" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "contact": it reads contacts.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • untrusted-inputThe description's first sentence says "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    Whether one contact (by email or member id) is on one list. GET /api/v1/contacts/exists_in_sub_list.

    Annotations the server declares

    • title: Check list membership
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • robly_find_contactLook up one contact by email address or member id: status, subscription date, sign-up source and, on request, the lists and data fields.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "robly_find_contact" says "find": a word for reading.

    What it can reach

    • private-dataThe name "robly_find_contact" says "find" and "contact": it reads contacts.
    • private-dataThe description's first sentence says "contact": it reads contacts.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • untrusted-inputThe description's first sentence says "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Find contact
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • robly_get_signup_formThe data fields and sub lists a new subscriber can be given through the sign-up API (public ones unless include_all is true).Reads text others writeNo findings

    Why it is in this group

    • The name "robly_get_signup_form" says "get": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Get sign-up form
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • robly_list_contactsList contacts (members) of the Robly account, newest first as Robly orders them: id, email, subscribed/deleted flags, subscription date, sign-up source, timestamps.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "robly_list_contacts" says "list": a word for reading.

    What it can reach

    • private-dataThe name "robly_list_contacts" says "list" and "contact": it reads contacts.
    • private-dataThe description's first sentence says "list" and "contact": it reads contacts.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    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) and offset: pass next_offset from the previous reply. Robly does not return a total. GET /api/v1/contacts/show.

    Annotations the server declares

    • title: List contacts
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • robly_list_fieldsList 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 th…Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "robly_list_fields" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "contact": it reads contacts.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: List data fields
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • robly_list_sub_listsList the account's sub lists (the lists contacts belong to): id, name, position, timestamps.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "robly_list_sub_lists" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "contact": it reads contacts.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: List sub lists
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.

Reads private data5
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write13
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

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

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__robly__robly_list_contacts",
      "mcp__robly__robly_find_contact",
      "mcp__robly__robly_check_list_membership",
      "mcp__robly__robly_list_sub_lists",
      "mcp__robly__robly_list_fields",
      "mcp__robly__robly_get_signup_form"
    ],
    "ask": [],
    "deny": [
      "mcp__robly__robly_subscribe_contact",
      "mcp__robly__robly_add_contact_to_list",
      "mcp__robly__robly_remove_contact_from_list",
      "mcp__robly__robly_update_contact",
      "mcp__robly__robly_unsubscribe_contact",
      "mcp__robly__robly_create_sub_list",
      "mcp__robly__robly_rename_sub_list"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as robly. Review it before you use it.

Capability tags behind 13 rules
  • mcp__robly__robly_list_contacts private-data, untrusted-input
  • mcp__robly__robly_find_contact private-data, untrusted-input
  • mcp__robly__robly_check_list_membership private-data, untrusted-input
  • mcp__robly__robly_list_sub_lists private-data, untrusted-input
  • mcp__robly__robly_list_fields private-data, untrusted-input
  • mcp__robly__robly_get_signup_form untrusted-input
  • mcp__robly__robly_subscribe_contact untrusted-input
  • mcp__robly__robly_add_contact_to_list untrusted-input
  • mcp__robly__robly_remove_contact_from_list untrusted-input
  • mcp__robly__robly_update_contact untrusted-input
  • mcp__robly__robly_unsubscribe_contact untrusted-input
  • mcp__robly__robly_create_sub_list untrusted-input
  • mcp__robly__robly_rename_sub_list untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.usefulapi/robly/verify?hash=81599ed6532db52a197124877c7d0093dd76b85209ca8ec846a8d068ce52ed29" | jq -e '.changed == false'

Pinned hash 81599ed6532d, from Oct 24, 2026, 11:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.usefulapi/robly/changes.xml

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anlyon.dev badge for io.usefulapi/robly
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Source: MCP Registry · repository. Synced Oct 24, 2026, 11:18 UTC.