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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · File & docs

Rex Software MCP by usefulapi

Read contacts, listings, tenancies and tasks; create a person contact, note or reminder.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
85 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
33

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 85 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name rex-software-mcp.

  • Pass
    Lists tools

    tools/list returned 33 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 85 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 85 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    109 of 109 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:34:34.51365Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Rex Software MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http rex-software-mcp-by-usefulapi https://rex-software.usefulapi.io/mcp

Capabilities

Tools 33

rex_autocomplete_contacts

Quick lookup of contacts by (part of) a name: returns the best matches with id, name, email and phone. Use the id with rex_get_contact. POST /v1/rex/Contacts/autocomplete.

Discovered
rex_autocomplete_listings

Quick lookup of listings by (part of) an address: returns the best matches with listing id and address. Use the id with rex_get_listing. POST /v1/rex/Listings/autocomplete.

Discovered
rex_create_contact

WRITE: create a new person contact in Rex with a name and optionally one email and one phone. Search first (rex_autocomplete_contacts) to avoid duplicates. Not retried. Returns the new contact id. POST /v1/rex/Contacts/create.

Discovered
rex_create_note

WRITE: add a note to one or more contacts and/or properties (for example after a call or an open home). Not retried. Returns the new note id. POST /v1/rex/Notes/create.

Discovered
rex_create_reminder

WRITE: create a follow-up reminder (task) due on a date, optionally linked to a contact, property or listing and assigned to a user (default: Rex's default remindee). Not retried. Returns the new reminder id. POST /v1/rex/Reminders/create.

Discovered
rex_describe_search_fields

The field names a search on the given service accepts in criteria, each with its label, type and (for enums) the value list. Call this before building criteria on a field you are not sure of. Sorting (order_by) uses a separate list of sortable fields whose names can differ (for example name_last, not contact.name_last): set include_order_by to get it. POST /v1/rex/<Service>/describeSearchFields (and <Service>/describeModel for include_order_by).

Discovered
rex_get_appraisal

One appraisal by id (date, state, agents, property, price expectations and commission estimate). The id comes from a search or autocomplete. POST /v1/rex/Appraisals/read.

Discovered
rex_get_contact

One contact by id (names, emails, phones, addresses, tags, relationships and the related properties and listings). The id comes from a search or autocomplete. POST /v1/rex/Contacts/read.

Discovered
rex_get_deal

One deal by id (state, value, parties and expected close date). The id comes from a search or autocomplete. POST /v1/rex/Deals/read.

Discovered
rex_get_lead

One lead by id (contact, source, status, assignee and the original enquiry). The id comes from a search or autocomplete. POST /v1/rex/Leads/read.

Discovered
rex_get_listing

One listing by id (state, price, agents, the property with its attributes, images, related contacts and events). The id comes from a search or autocomplete. POST /v1/rex/Listings/read.

Discovered
rex_get_note

One note by id (text, type and the contacts and properties it is linked to). The id comes from a search or autocomplete. POST /v1/rex/Notes/read.

Discovered
rex_get_property

One property by id (address, attributes (bedrooms, land area and so on), features, owners and the property's history). The id comes from a search or autocomplete. POST /v1/rex/Properties/read.

Discovered
rex_get_reminder

One reminder by id (description, date, remindee, completion state and linked records). The id comes from a search or autocomplete. POST /v1/rex/Reminders/read.

Discovered
rex_get_tenancy

One tenancy by id (property, tenants, lease dates and rent). The id comes from a search or autocomplete. POST /v1/rex/Tenancies/read.

Discovered
rex_get_user_profile

The Rex user this server is signed in as: user id, name, email, whether they own the account, position and default office. Good first call. POST /v1/rex/UserProfile/read.

Discovered
rex_get_value_list

The allowed values (id and label) of one value list, for example property_category. The ids are what writes and criteria expect. POST /v1/rex/SystemValues/getCategoryValues.

Discovered
rex_list_accessible_accounts

The Rex agency accounts (account_id and name) this user can sign in to. A user with several accounts picks one with the Account id field when connecting. POST /v1/rex/UserProfile/getAccessibleAccounts.

Discovered
rex_list_value_lists

The names of Rex's value lists (the allowed ids for fields such as note types, reminder types, lead sources and property categories). Use a name with rex_get_value_list. POST /v1/rex/SystemValues/getValueCategories.

Discovered
rex_search_activities

Search activities (the log of calls, emails and other actions on records). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: parent_object_type, parent_object_id, type_id, system_ctime, system_created_user_id. POST /v1/rex/Activities/search.

Discovered
rex_search_appointments

Search appointments (calendar items such as inspections and meetings). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). The searchable fields follow Reminders (reminder_date, remindee_user_id, contact_id, property_id, listing_id). Call rex_describe_search_fields with service Appointments for the full list. POST /v1/rex/Appointments/search.

Discovered
rex_search_appraisals

Search appraisals (listing presentations / market appraisals). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: appraisal_date, appraisal_state, appraisal_type_id, agent_id, property_id, listing_id, pipeline_stage_id, expected_close_date, price_asking. POST /v1/rex/Appraisals/search.

Discovered
rex_search_campaigns

Search campaigns (nurture and marketing campaigns with their members). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Call rex_describe_search_fields with service Campaigns for the searchable fields. POST /v1/rex/Campaigns/search.

Discovered
rex_search_contacts

Search contacts (people and companies). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: contact.name_full, contact.name_first, contact.name_last, contact.email_address, contact.phone_number, contact.type, contact.tags, contact.interest_level, contact.last_contacted_date, system_modtime. To find someone by name, rex_autocomplete_contacts is simpler. POST /v1/rex/Contacts/search.

Discovered
rex_search_deals

Search deals (the sales pipeline). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: deal.deal_state, deal.expected_close_date, deal.archive_date, deal.tags, deal.description. POST /v1/rex/Deals/search.

Discovered
rex_search_leads

Search leads (enquiries from portals, the website and email). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: lead.contact_id, lead.listing_id, lead.property_id, lead.assignee_id, lead.lead_source_id, lead.lead_status_id, lead.system_completed_time, system_ctime. POST /v1/rex/Leads/search.

Discovered
rex_search_listing_events

Search listing events (open homes and inspections). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Call rex_describe_search_fields with service ListingEvents for the searchable fields. POST /v1/rex/ListingEvents/search.

Discovered
rex_search_listings

Search listings (properties for sale or rent). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: listing.system_listing_state (for example "current"), listing.system_publication_status, listing.price_match, listing.listing_agent_id, listing.listing_category_id, property.adr_suburb_or_town, property.adr_postcode, property.adr_street_name, property.attr_bedrooms. To find a listing by address, rex_autocomplete_listings is simpler. POST /v1/rex/Listings/search.

Discovered
rex_search_notes

Search notes recorded against contacts and properties. Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: system_ctime, system_created_user_id, id. Call rex_describe_search_fields with service Notes for related contact and property fields. POST /v1/rex/Notes/search.

Discovered
rex_search_properties

Search properties (the physical addresses behind listings, appraisals and tenancies). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: property.system_search_key, property.adr_suburb_or_town, property.adr_postcode, property.adr_street_name, property.attr_bedrooms, property.attr_bathrooms. POST /v1/rex/Properties/search.

Discovered
rex_search_reminders

Search reminders (follow-up tasks) linked to contacts, properties and listings. Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: reminder_date, system_completed_time, remindee_user_id, contact_id, property_id, listing_id, reminder_type_id, priority_id. Open reminders have no system_completed_time (type is, value Null). POST /v1/rex/Reminders/search.

Discovered
rex_search_tenancies

Search tenancies (property management leases). Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: id, property_id, system_record_state, lease_current_expiry, crt.contact_id. POST /v1/rex/Tenancies/search.

Discovered
rex_search_users

Search the users (staff) of the agency account. Filters (criteria) combine with AND; results are paged with offset/limit (next_offset says where to continue). Useful fields: first_name, last_name, email, status, user_group_id. User ids are used elsewhere as agent, assignee and remindee ids. POST /v1/rex/AccountUsers/search.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected85 ms33