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io.usefulapi/hostfully

REMOTE · HOSTFULLY.USEFULAPI.IO · SCANNED OCT 3

Check properties, calendars, leads, quotes, guests and messages in Hostfully, and send replies.

77 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security89
Transport & Reachability100
Schema Quality & AI Usability75
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 2715 tokens (~135/item across 20 items; 20 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
  • Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage97
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 92% of tool parameters carry a description.Partial
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
  • An AI judge read all 20 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Install

How do I install the io.usefulapi/hostfully MCP server?

io.usefulapi/hostfully is a hosted endpoint at https://hostfully.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · hostfully.usefulapi.io

# add to Claude Code
claude mcp add --transport http io-usefulapi-hostfully 'https://hostfully.usefulapi.io/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "io-usefulapi-hostfully": {
      "url": "https://hostfully.usefulapi.io/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "io-usefulapi-hostfully": {
      "type": "http",
      "url": "https://hostfully.usefulapi.io/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.io-usefulapi-hostfully]
url = "https://hostfully.usefulapi.io/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-usefulapi-hostfully": {
      "type": "remote",
      "url": "https://hostfully.usefulapi.io/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add io-usefulapi-hostfully --url 'https://hostfully.usefulapi.io/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  io-usefulapi-hostfully:
    url: "https://hostfully.usefulapi.io/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "io-usefulapi-hostfully": {
      "Transport": "http",
      "Url": "https://hostfully.usefulapi.io/mcp"
    }
  }
}
# add to Vellum
assistant mcp add io-usefulapi-hostfully -t streamable-http -u 'https://hostfully.usefulapi.io/mcp'
// mcp.json
{
  "mcpServers": {
    "io-usefulapi-hostfully": {
      "type": "http",
      "url": "https://hostfully.usefulapi.io/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Oct 26 +58
    • HTTPS: unverified → pass ▲ security
    • Authorization: unverified → pass ▲ security
    • Injection markers: unverified → pass ▲ security
    • Transport: fail → pass ▲ security
    • MCP protocol: unverified → fail ▼ functional
    • Endpoint reachability: not serving MCP → reachable ▲ functional
    • Tool coverage: unverified → 100 ▲ functional
    • Stability: unverified → 0.07 ▲ functional
    • Server version: 1.0.0 → 1.5.1 functional
  • 1 Oct 26 −53
    • Endpoint reachability: reachable → not serving MCP ▼ security
    • Tool safety: pass → unverified ▼ security
    • Authorization: pass → unverified ▼ security
    • Transport: pass → fail ▼ security
    • Capabilities: fail → unverified ▼ functional
    • Tool coverage: 100 → unverified ▼ functional
  • 30 Sept 26 +53
    • Authorization: unverified → pass ▲ security
    • Injection markers: unverified → pass ▲ security
    • Transport: fail → pass ▲ security
    • First check of Judged manipulation: pass security
    • First check of Authorization: partial security
    • MCP protocol: unverified → fail ▼ functional
    • Tool coverage: unverified → 100 ▲ functional
    • First check of Schema quality: fail functional
    • First check of Schema quality: excellent functional
    • First check of Tool coverage: 92 functional
    • First check of Schema quality: fail functional
    • First check of Destructive annotations: 100 functional
  • 29 Sept 26 18

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Oct 2026 · Probed https://hostfully.usefulapi.io/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=usefulapi.io CN=WE1,O=Google Trust Services,C=US 13 Sept 2026 12 Dec 2026 ECDSA 256 ECDSA-SHA256 d9be3287b0fde9630e825ba1f79bff3f
SANs: usefulapi.io, *.usefulapi.io
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of hostfully.usefulapi.io. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
io. present 57355 8 Verified
usefulapi.io. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication Enforced and verified

The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.

Result Enforced and verified
Enforced On tool calls
HTTP status 200

WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://hostfully.usefulapi.io/.well-known/oauth-protected-resource/mcp"

Bearer realm="OAuth", resource_metadata="https://hostfully.usefulapi.io/.well-known/oauth-protected-resource/mcp"

Protected resource metadata

Document https://hostfully.usefulapi.io/.well-known/oauth-protected-resource/mcp
Retrieved Yes
Resource https://hostfully.usefulapi.io/mcp
Authorisation server https://hostfully.usefulapi.io

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://hostfully.usefulapi.io/mcp Verified 200
http (plaintext) http://hostfully.usefulapi.io/mcp HTTPS enforced 301 https://hostfully.usefulapi.io/mcp
MCP tools · 20 exposed · ~2,715 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
hostfully_calculate_quote ~175

Price a prospective stay at one property: rent, fees, taxes, security deposit and total for the given dates and party. Computes only — creates nothing. Hostfully: POST /api/v3.3/quotes.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
check_in_datestringyesCheck-in date (YYYY-MM-DD).
check_out_datestringyesCheck-out date (YYYY-MM-DD).
children_countinteger–Children among the guests.
guestsintegeryesNumber of guests.
lead_uidstring–Quote in the context of an existing lead.
pet_countinteger–Number of pets.
property_uidstringyesThe property's UID.

No output schema declared.

No examples provided.

hostfully_create_job ~154

Schedule a job (e.g. a cleaning or a guest greeting) for a service at a property, optionally tied to a lead. Times are property-local. hostfully_list_services gives the service UID. Hostfully: POST /api/v3.3/jobs.

NameTypeReqDescription
endstringyesEnd, YYYY-MM-DDTHH:MM:SS.
lead_uidstring–The booking this job serves.
notesstring––
property_uidstringyesThe property's UID.
service_uidstringyesThe service's UID.
startstringyesStart, YYYY-MM-DDTHH:MM:SS.
statusstring–Initial status; default NEW.

No output schema declared.

No examples provided.

hostfully_create_lead ~231

Create a lead at one property: status BLOCKED puts an owner/maintenance block on the calendar; status NEW records a guest inquiry (which does not confirm a booking or take payment). Blocks can later be removed in Hostfully; inquiries go through the normal pipeline. Dates are local to the property. Hostfully: POST /api/v3.3/leads.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
check_instringyesCheck-in, property-local, YYYY-MM-DDTHH:MM:SS.
check_outstringyesCheck-out, property-local, YYYY-MM-DDTHH:MM:SS.
external_booking_idstring–Your own reference for this lead.
guestobject–Guest information — needed for an inquiry, usually omitted for a block.
notesstring–Notes on the lead.
property_uidstringyesThe property's UID.
statusstringyesBLOCKED = calendar block, NEW = inquiry.

No output schema declared.

No examples provided.

hostfully_get_lead ~69

Fetch one lead (booking, inquiry, booking request or block) by UID — status, channel, dates, guest information, notes and assignee. Hostfully: GET /api/v3.3/leads/{leadUid}.

NameTypeReqDescription
lead_uidstringyesThe lead's UID.

No output schema declared.

No examples provided.

hostfully_get_pricing_periods ~88

The nightly price, minimum stay and check-in/check-out availability set for each date of one property over a range. Hostfully: GET /api/v3.3/pricing-periods.

NameTypeReqDescription
fromstringyesFirst day (YYYY-MM-DD).
property_uidstringyesThe property's UID.
tostringyesLast day (YYYY-MM-DD).

No output schema declared.

No examples provided.

hostfully_get_property ~64

Fetch one property's full details — address, time zone, rooms, pricing and availability settings, channel data, booking notes and cancellation policy. Hostfully: GET /api/v3.3/properties/{propertyUid}.

NameTypeReqDescription
property_uidstringyesThe property's UID.

No output schema declared.

No examples provided.

hostfully_get_property_calendar ~104

Day-by-day availability and pricing for one property over a date range — the direct answer to 'is it free, and at what price?'. Hostfully: GET /api/v3.3/property-calendar/{propertyUid}.

NameTypeReqDescription
availability_commentsboolean–Include availability comments.
fromstringyesFirst day (YYYY-MM-DD).
property_uidstringyesThe property's UID.
tostringyesLast day (YYYY-MM-DD).

No output schema declared.

No examples provided.

hostfully_list_agencies ~57

List the agencies this API key can access, with their UIDs, currency and default check-in/out times. Start here to find the agency_uid other tools need. Hostfully: GET /api/v3.3/agencies.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

hostfully_list_guests ~74

List the agency's guest records — names, email, phone, address and profile notes. Hostfully: GET /api/v3.3/guests/{agencyUid}.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.

No output schema declared.

No examples provided.

hostfully_list_jobs ~140

List operational jobs (cleanings, greetings, maintenance and other services) scheduled in a date window, optionally for given properties and statuses, sorted by start date. Hostfully: GET /api/v3.3/jobs.

NameTypeReqDescription
fromstringyesWindow start (YYYY-MM-DD).
modified_sincestring–Only jobs modified on or after this date; Hostfully requires it, default 2000-01-01 (YYYY-MM-DD).
property_uidsarray–Only jobs at these properties.
statusesarray–Only jobs in these statuses.
tostringyesWindow end (YYYY-MM-DD).

No output schema declared.

No examples provided.

hostfully_list_messages ~210

Read guest messages (Airbnb, VRBO, Booking.com, email, SMS, WhatsApp, in-app) for a lead, a thread or a whole agency, with sender type, status and content. Give lead_uid, thread_uid, or agency_uid (or the default). Cursor-paginated. Hostfully: GET /api/v3.3/messages.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
created_atstring–Creation-date filter, ISO date-time, e.g. 2026-04-20T11:52:36Z.
cursorstring–Cursor from the previous page's _paging._nextCursor. Omit for the first page.
lead_uidstring–Only messages about this lead.
limitinteger–Page size, 1-100.
thread_uidstring–Only messages in this thread.

No output schema declared.

No examples provided.

hostfully_list_orders ~136

List orders — the money side of a booking: rent, fees, services, adjustments, taxes, channel commission and total. Filter by lead, property, guest or update time (at least one is required). Hostfully: GET /api/v3.3/orders.

NameTypeReqDescription
guest_uidstring–Only orders of this guest.
lead_uidstring–Only the order of this lead.
property_uidstring–Only orders for this property.
updated_sincestring–Only records updated since this UTC time, e.g. 2026-04-20T11:52:36.

No output schema declared.

No examples provided.

hostfully_list_owners ~89

List the agency's property owners — contact details, business name, commission rate and permissions — optionally filtered by a search string. Hostfully: GET /api/v3.3/owners.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
querystring–Free-text search over owners.

No output schema declared.

No examples provided.

hostfully_list_properties ~153

List an agency's properties (rentals) with name, address, type, bedrooms, active flag and pricing/availability settings. Cursor-paginated. Hostfully: GET /api/v3.3/properties.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
cursorstring–Cursor from the previous page's _paging._nextCursor. Omit for the first page.
limitinteger–Page size, 1-100.
updated_sincestring–Only records updated since this UTC time, e.g. 2026-04-20T11:52:36.

No output schema declared.

No examples provided.

hostfully_list_reviews ~171

List guest reviews for a property or a lead — rating, title, content, source, private feedback and the host response. Cursor-paginated. Hostfully: GET /api/v3.3/reviews.

NameTypeReqDescription
cursorstring–Cursor from the previous page's _paging._nextCursor. Omit for the first page.
lead_uidstring–Reviews tied to this lead.
limitinteger–Page size, 1-100.
property_uidstring–Reviews of this property.
sortstring––
sort_directionstring––
sourcestring––
updated_sincestring–Only records updated since this UTC time, e.g. 2026-04-20T11:52:36.

No output schema declared.

No examples provided.

hostfully_list_services ~116

List the services an agency offers or schedules (cleaning, transportation, greeting, cooking, tours ...), with provider, price and duration. A service UID is what hostfully_create_job needs. Hostfully: GET /api/v3.3/services.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
catered_tostring–Who the service is for.
service_provider_uidstring–Only services of this provider.

No output schema declared.

No examples provided.

hostfully_list_threads ~133

List guest-messaging threads for an agency or one lead, with participants and read status. Give lead_uid, or agency_uid (or the default). Cursor-paginated. Hostfully: GET /api/v3.3/threads.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
cursorstring–Cursor from the previous page's _paging._nextCursor. Omit for the first page.
lead_uidstring––
limitinteger–Page size, 1-100.

No output schema declared.

No examples provided.

hostfully_search_leads ~293

Search leads — Hostfully's word for bookings, inquiries, booking requests and calendar blocks — by agency, property or UIDs, and by check-in/check-out date. Returns status, type, channel, dates and guest info. Give at least one of agency_uid (or the default), property_uid, or lead_uids. Cursor-paginated. Hostfully: GET /api/v3.3/leads.

NameTypeReqDescription
agency_uidstring–Agency UID. Defaults to HOSTFULLY_AGENCY_UID; hostfully_list_agencies lists the options.
check_in_fromstring–Check-in on or after (YYYY-MM-DD).
check_in_tostring–Check-in on or before (YYYY-MM-DD).
check_out_fromstring–Check-out on or after (YYYY-MM-DD).
check_out_tostring–Check-out on or before (YYYY-MM-DD).
cursorstring–Cursor from the previous page's _paging._nextCursor. Omit for the first page.
lead_uidsarray–Only these lead UIDs.
limitinteger–Page size, 1-100.
property_uidstring–Only leads for this property.
updated_sincestring–Only records updated since this UTC time, e.g. 2026-04-20T11:52:36.

No output schema declared.

No examples provided.

hostfully_send_message ~135

Send a message to the guest of a lead, by EMAIL or as a DIRECT_MESSAGE on the booking channel (Airbnb, VRBO or Booking.com leads only). This reaches a real guest and cannot be unsent — confirm the text first. Hostfully: POST /api/v3.3/messages.

NameTypeReqDescription
lead_uidstringyesThe lead whose guest receives the message.
subjectstring–Subject line (email).
textstringyesThe message body.
thread_uidstring–Post into this existing thread.
typestringyesEMAIL, or DIRECT_MESSAGE via the channel.

No output schema declared.

No examples provided.

hostfully_update_lead ~123

Partially update a lead's notes, extra notes and guest details (name, contact, address, arrival/departure times). Does NOT change dates, party size, property or status. Hostfully may ignore personal-data fields the key is not allowed to edit. Hostfully: PATCH /api/v3.3/leads/{leadUid}.

NameTypeReqDescription
extra_notesstring––
guestobject–Guest fields to change; omitted fields are kept.
lead_uidstringyesThe lead's UID.
notesstring––

No output schema declared.

No examples provided.

Common questions

What is the io.usefulapi/hostfully MCP server?

io.usefulapi/hostfully is an MCP server listed in the public MCP registry as io.usefulapi/hostfully. Check properties, calendars, leads, quotes, guests and messages in Hostfully, and send replies. This page covers its hosted endpoint (https://hostfully.usefulapi.io/mcp).

Is the io.usefulapi/hostfully MCP server safe to use?

io.usefulapi/hostfully scores 77 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.usefulapi/hostfully MCP server expose?

io.usefulapi/hostfully exposes 20 tools: hostfully_list_agencies, hostfully_list_properties, hostfully_get_property, hostfully_get_property_calendar, hostfully_get_pricing_periods, and 15 more. Their descriptions and schemas cost roughly 2,715 tokens of context every time the server is loaded.

Does the io.usefulapi/hostfully MCP server require authentication?

Yes. io.usefulapi/hostfully asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

Is the io.usefulapi/hostfully MCP server still maintained?

io.usefulapi/hostfully is still listed as active in the MCP registry. We last reached this channel on 3 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.