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IDX Broker MCP by usefulapi

io.usefulapi/idx-brokerusefulapi.iostreamable-httpv1.0.0Scanned

Read IDX Broker leads, agents, listings and MLS data; create and update leads and notes.

27 tools: 1 can delete or cancel things, 2 change things and 24 only read.

Tools: 1 delete, 0 irreversible, 2 write, 24 read.
  • Reads private data · 5
  • Reads text others write · 27
  • Can send data out · 0
  • No findings

Anlyon alternative

3 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.

27 tools

Deletes or cancels 1Claude Code: deny
  • idx_update_leadWRITE: changes fields of an existing lead; the given values replace the stored ones.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_update_lead" 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: changes fields of an existing lead; the given values replace the stored ones. Only pass what must change. Field names are the IDX lead field names as seen on a lead returned by idx_get_lead (for example firstName, lastName, email, phone, status). POST /leads/lead/{leadID}.

    Annotations the server declares

    • title: Update lead
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
Changes things 2Claude Code: ask
  • idx_add_lead_noteWRITE: adds a note to a lead (visible to the account's agents).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_add_lead_note" says "add": a word for a change.

    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: adds a note to a lead (visible to the account's agents). Returns the new note id. PUT /leads/note/{leadID}.

    Annotations the server declares

    • title: Add lead note
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • idx_create_leadWRITE: creates a new lead in the IDX Broker account (and may trigger the account's own lead notifications).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_create_lead" says "create": a word for a change.

    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: creates a new lead in the IDX Broker account (and may trigger the account's own lead notifications). Needs a correctly formatted email with a valid MX record; IDX rejects bad addresses with a server error. Extra fields go in `fields` by their IDX name, as seen on a lead returned by idx_get_lead. Returns the new lead id. PUT /leads/lead.

    Annotations the server declares

    • title: Create lead
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Only reads 24Show 24 read-only tools
  • idx_get_account_infoThe IDX Broker client account this access key belongs to: company and contact details and account settings (access keys and passwords are never returned).Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "idx_get_account_info" says "get": 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.
    Description, as the server wrote it
    The IDX Broker client account this access key belongs to: company and contact details and account settings (access keys and passwords are never returned). The reply also shows how many of the key's hourly API accesses are used. GET /clients/accountinfo.

    Annotations the server declares

    • title: Get account info
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_get_account_typeThe IDX Broker plan of the account (Lite or Platinum).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_get_account_type" 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 IDX Broker plan of the account (Lite or Platinum). It sets the hourly API limit: 300 accesses per key on Lite, 500 on Platinum. GET /clients/accounttype.

    Annotations the server declares

    • title: Get account type
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_get_leadOne lead by id with its details, last 5 viewed listings and searches, and the total number of listings viewed.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_get_lead" 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
    One lead by id with its details, last 5 viewed listings and searches, and the total number of listings viewed. GET /leads/lead/{leadID}.

    Annotations the server declares

    • title: Get lead
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_get_lead_trafficWebsite traffic history of one lead: date, page, referrer and IP of each visit (at most 5,000 rows per request; use interval/offset/limit to narrow it).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_get_lead_traffic" 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.
    • untrusted-inputThe description's first sentence says "website": it reads web pages, which anyone can write.
    Description, as the server wrote it
    Website traffic history of one lead: date, page, referrer and IP of each visit (at most 5,000 rows per request; use interval/offset/limit to narrow it). GET /leads/leadtraffic/{leadID}.

    Annotations the server declares

    • title: Get lead traffic
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_get_mls_ageWhen an MLS feed was last downloaded and processed and when its images were last gathered (UTC).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_get_mls_age" 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
    When an MLS feed was last downloaded and processed and when its images were last gathered (UTC). GET /mls/age/{idxID}.

    Annotations the server declares

    • title: Get MLS data age
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_get_widgetOne JavaScript widget with its settings.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_get_widget" 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
    One JavaScript widget with its settings. GET /clients/widgets/{id}.

    Annotations the server declares

    • title: Get widget
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_agentsAgents on a multi-user IDX Broker account (id, name, office, contact details, category, language, login dates).Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "idx_list_agents" 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.
    Description, as the server wrote it
    Agents on a multi-user IDX Broker account (id, name, office, contact details, category, language, login dates). Filter by one field or by a time window. GET /clients/agents.

    Annotations the server declares

    • title: List agents
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_approved_mlsThe MLSs approved for display on the account, with their IDX ids (such as a001) and names.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_approved_mls" says "list": 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 MLSs approved for display on the account, with their IDX ids (such as a001) and names. Use the id in the other MLS tools. GET /mls/approvedmls.

    Annotations the server declares

    • title: List approved MLSs
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_lead_notesNotes on a lead, or one note when note_id is given.Reads private dataReads text others writeNo findings

    Why it is in this group

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

    What it can reach

    • private-dataThe name "idx_list_lead_notes" says "list" and "note": it reads notes.
    • private-dataThe description's first sentence says "note": it reads notes.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Notes on a lead, or one note when note_id is given. GET /leads/note/{leadID}[/{noteID}].

    Annotations the server declares

    • title: List lead notes
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_lead_saved_propertiesProperties a lead saved (or one when property_id is given).Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_lead_saved_properties" says "list": 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
    Properties a lead saved (or one when property_id is given). GET /leads/property/{leadID}[/{propertyID}].

    Annotations the server declares

    • title: List lead saved properties
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_lead_searchesSaved property searches of a lead (or one search when search_id is given), with the results URL of each.Reads text others writeNo findings

    Why it is in this group

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

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    Saved property searches of a lead (or one search when search_id is given), with the results URL of each. GET /leads/search/{leadID}[/{searchID}].

    Annotations the server declares

    • title: List lead saved searches
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_leadsList the account's leads (website registrants) with contact details, status, agent owner, and last viewed listings and searches.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "idx_list_leads" 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.
    • untrusted-inputThe description's first sentence says "list" and "website": it reads web pages, which anyone can write.
    Description, as the server wrote it
    List the account's leads (website registrants) with contact details, status, agent owner, and last viewed listings and searches. A reply holds up to 500 leads; pass offset to page on and look for pagination information in the reply. Filter by a time window on signup, edit, login or activity date. Uses one of the key's hourly API accesses. GET /leads/lead.

    Annotations the server declares

    • title: List leads
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_mls_locationsCities, counties or postal codes present in an MLS's data, with ids and a count of occurrences.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_mls_locations" says "list": 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
    Cities, counties or postal codes present in an MLS's data, with ids and a count of occurrences. Filter fields: cities = cityID, cityName, stateAbrv, mlsPtID; counties = countyID, countyName, stateAbrv, mlsPtID; postalcodes = id, stateAbrv, mlsPtID. GET /mls/{cities|counties|postalcodes}/{idxID}.

    Annotations the server declares

    • title: List MLS cities, counties or postal codes
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_mls_property_typesProperty types of an MLS with the IDX type id, the MLS name, the parent type and subtypes.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_mls_property_types" says "list": 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
    Property types of an MLS with the IDX type id, the MLS name, the parent type and subtypes. GET /mls/propertytypes/{idxID}.

    Annotations the server declares

    • title: List MLS property types
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_mls_search_fieldsThe fields of an MLS that can be searched under MLS rules: field name, display name and the property types they belong to.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_mls_search_fields" says "list": 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 fields of an MLS that can be searched under MLS rules: field name, display name and the property types they belong to. GET /mls/searchfields/{idxID}.

    Annotations the server declares

    • title: List MLS search fields
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_off_market_listingsThe account's off-market listings.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_off_market_listings" says "list": 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 account's off-market listings. GET /clients/offmarket.

    Annotations the server declares

    • title: List off-market listings
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_officesOffices on a multi-user IDX Broker account.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_offices" says "list": 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
    Offices on a multi-user IDX Broker account. Filter by one field or by a time window. GET /clients/offices.

    Annotations the server declares

    • title: List offices
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_sold_pending_listingsThe account's sold and pending listings, that is those removed from the MLS feed.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_sold_pending_listings" says "list": 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 account's sold and pending listings, that is those removed from the MLS feed. GET /clients/soldpending.

    Annotations the server declares

    • title: List sold and pending listings
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_supplemental_listingsThe account's supplemental (non-MLS) listings with a basic set of fields.Reads text others writeNo findings

    Why it is in this group

    • The name "idx_list_supplemental_listings" says "list": 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 account's supplemental (non-MLS) listings with a basic set of fields. GET /clients/supplemental.

    Annotations the server declares

    • title: List supplemental listings
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • idx_list_widgetsThe JavaScript widgets on the account with id, name, URL and options.Reads text others writeNo findings

    Why it is in this group

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

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    The JavaScript widgets on the account with id, name, URL and options. GET /clients/widgets.

    Annotations the server declares

    • title: List widgets
    • 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 write27
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 idx-broker https://idx-broker.usefulapi.io/mcp
claude mcp add --transport http idx-broker https://idx-broker.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__idx-broker__idx_get_account_info",
      "mcp__idx-broker__idx_get_account_type",
      "mcp__idx-broker__idx_list_agents",
      "mcp__idx-broker__idx_list_offices",
      "mcp__idx-broker__idx_list_leads",
      "mcp__idx-broker__idx_get_lead",
      "mcp__idx-broker__idx_list_lead_notes",
      "mcp__idx-broker__idx_list_lead_searches",
      "mcp__idx-broker__idx_list_lead_saved_properties",
      "mcp__idx-broker__idx_get_lead_traffic",
      "mcp__idx-broker__idx_list_featured_listings",
      "mcp__idx-broker__idx_list_sold_pending_listings",
      "mcp__idx-broker__idx_list_off_market_listings",
      "mcp__idx-broker__idx_list_supplemental_listings",
      "mcp__idx-broker__idx_list_saved_links",
      "mcp__idx-broker__idx_get_saved_link_count",
      "mcp__idx-broker__idx_list_widgets",
      "mcp__idx-broker__idx_get_widget",
      "mcp__idx-broker__idx_list_system_links",
      "mcp__idx-broker__idx_list_approved_mls",
      "mcp__idx-broker__idx_get_mls_age",
      "mcp__idx-broker__idx_list_mls_property_types",
      "mcp__idx-broker__idx_list_mls_search_fields",
      "mcp__idx-broker__idx_list_mls_locations"
    ],
    "ask": [
      "mcp__idx-broker__idx_create_lead",
      "mcp__idx-broker__idx_add_lead_note"
    ],
    "deny": [
      "mcp__idx-broker__idx_update_lead"
    ]
  }
}

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 idx-broker. Review it before you use it.

Capability tags behind 27 rules
  • mcp__idx-broker__idx_get_account_info private-data, untrusted-input
  • mcp__idx-broker__idx_get_account_type untrusted-input
  • mcp__idx-broker__idx_list_agents private-data, untrusted-input
  • mcp__idx-broker__idx_list_offices untrusted-input
  • mcp__idx-broker__idx_list_leads private-data, untrusted-input
  • mcp__idx-broker__idx_get_lead untrusted-input
  • mcp__idx-broker__idx_list_lead_notes private-data, untrusted-input
  • mcp__idx-broker__idx_list_lead_searches untrusted-input
  • mcp__idx-broker__idx_list_lead_saved_properties untrusted-input
  • mcp__idx-broker__idx_get_lead_traffic untrusted-input
  • mcp__idx-broker__idx_list_featured_listings untrusted-input
  • mcp__idx-broker__idx_list_sold_pending_listings untrusted-input
  • mcp__idx-broker__idx_list_off_market_listings untrusted-input
  • mcp__idx-broker__idx_list_supplemental_listings untrusted-input
  • mcp__idx-broker__idx_list_saved_links untrusted-input
  • mcp__idx-broker__idx_get_saved_link_count untrusted-input
  • mcp__idx-broker__idx_list_widgets untrusted-input
  • mcp__idx-broker__idx_get_widget untrusted-input
  • mcp__idx-broker__idx_list_system_links private-data, untrusted-input
  • mcp__idx-broker__idx_list_approved_mls untrusted-input
  • mcp__idx-broker__idx_get_mls_age untrusted-input
  • mcp__idx-broker__idx_list_mls_property_types untrusted-input
  • mcp__idx-broker__idx_list_mls_search_fields untrusted-input
  • mcp__idx-broker__idx_list_mls_locations untrusted-input
  • mcp__idx-broker__idx_create_lead untrusted-input
  • mcp__idx-broker__idx_add_lead_note untrusted-input
  • mcp__idx-broker__idx_update_lead 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/idx-broker/verify?hash=af38dd6d5bf5894b077065dcb39d7ad0aaa5f9f3cf8516cf73e78253b5827bcb" | jq -e '.changed == false'

Pinned hash af38dd6d5bf5, from Oct 23, 2026, 08:20 UTC.

Watch

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

https://anlyon.dev/servers/io.usefulapi/idx-broker/changes.xml

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Badge

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Source: MCP Registry · repository. Synced Oct 23, 2026, 08:18 UTC.