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Placetel MCP by usefulapi

REMOTE · PLACETEL.USEFULAPI.IO

Read Placetel calls, recordings, numbers and routing; edit contacts, start calls, send SMS.

62 Trust /100

Last scanned (3 hours ago)

Scores higher than 46% of remote servers

Reachable. Last reached 25 Oct 2026.

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 Security78
Transport & Reachability0
Schema Quality & AI Usability81
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 3795 tokens (~135/item across 28 items; 28 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 Management0
  • Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
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 29 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

Unverified: 1 category

A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

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.

  • 25 Oct 26 62

    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 25 Oct 2026 · Probed https://placetel.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 placetel.usefulapi.io. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
io. present 38690, 57355 8, 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 302

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

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

Protected resource metadata

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

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

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://placetel.usefulapi.io/mcp Redirected 302 https://usefulapi.io/placetel/
http (plaintext) http://placetel.usefulapi.io/mcp Inconclusive 302 http://placetel.usefulapi.io/mcp
MCP tools · 28 exposed · ~3,535 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
placetel_activate_number_profile ~90

WRITE: switch the active routing profile of a phone number (for example to Holiday or Night). This changes LIVE call handling for that number immediately: callers are routed differently. Find ids with placetel_list_number_profiles. PUT /numbers/{number_id}/profiles.

NameTypeReqDescription
number_idintegeryesPlacetel number id.
profile_idintegeryesId of the profile to activate.

No output schema declared.

No examples provided.

placetel_create_contact ~224

WRITE: create a contact in the shared Placetel phone book. Give at least a name, company or number. Nothing is sent to the contact. POST /contacts.

NameTypeReqDescription
addressstring–Private address.
address_workstring–Work address.
blockedboolean–true = calls from this contact are blocked.
companystring–Company.
emailstring–Private email address.
email_workstring–Work email address.
faxstring–Private fax number.
fax_workstring–Work fax number.
first_namestring–First name.
last_namestring–Last name.
mobilestring–Private mobile number.
mobile_workstring–Work mobile number.
phonestring–Private phone number.
phone_workstring–Work phone number.
speeddialstring–Speed-dial code.
tagsarray–Tags (replaces the existing tags on update; [] clears them).

No output schema declared.

No examples provided.

placetel_get_account ~54

The Placetel account this API key belongs to: user id, name, email, company, platform (e.g. PROFI), primary SIP user id and the numbers the key may use. GET /me.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

placetel_get_call ~56

One incoming call by id: caller, called number, type, duration, contact, voicemail file URL. GET /calls/{id}.

NameTypeReqDescription
call_idintegeryesPlacetel call id (from placetel_list_calls).

No output schema declared.

No examples provided.

placetel_get_contact ~44

One contact by id with all its fields. GET /contacts/{id}.

NameTypeReqDescription
contact_idintegeryesPlacetel contact id (from placetel_list_contacts).

No output schema declared.

No examples provided.

placetel_get_fax ~59

One fax by id: numbers, status, status info, pages, retries, report and file URL. GET /faxes/{id}.

NameTypeReqDescription
fax_idintegeryesPlacetel fax id (from placetel_list_faxes).

No output schema declared.

No examples provided.

placetel_get_number ~59

One phone number by id: number, E.164, name, site, carrier, activation state and routing id. GET /numbers/{id}.

NameTypeReqDescription
number_idintegeryesPlacetel number id (from placetel_list_numbers).

No output schema declared.

No examples provided.

placetel_get_routing ~68

One routing object by its id or by the phone number it answers. GET /routings/{number_or_id}.

NameTypeReqDescription
number_or_idstringyesA routing id (e.g. 4711) or a phone number (e.g. 022112345678).

No output schema declared.

No examples provided.

placetel_get_sip_user ~81

One SIP user (extension) by id: sipuid, extension, caller id, type, linked web user, online state and call settings. The SIP password and PINs are never returned. GET /sip_users/{id}.

NameTypeReqDescription
sip_user_idintegeryesPlacetel SIP user id (from placetel_list_sip_users).

No output schema declared.

No examples provided.

placetel_initiate_call ~135

WRITE: start a real phone call. Placetel rings the given SIP user's phone first and, once answered, dials the target number. This places an actual call and call charges apply. Do not use without the user's explicit request. POST /calls.

NameTypeReqDescription
from_namestring–Name shown for the call.
sipuidstringyesSIP user that is rung first, e.g. 7771234567@fpbx.de (the sipuid from placetel_list_sip_users).
targetstringyesNumber to call, e.g. +4922112345678.

No output schema declared.

No examples provided.

placetel_list_call_center_agents ~94

List call-center agents with name, status, extension, priority and last call time. GET /call_center_agents.

NameTypeReqDescription
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.

No output schema declared.

No examples provided.

placetel_list_call_center_calls ~149

Call-center calls of one day with queue, agent, from/to, answer status, start/end time and time spent in queue. date is required; narrow to queues with queue_ids. GET /call_center_calls.

NameTypeReqDescription
datestringyesDay to list, yyyy-mm-dd.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
queue_idsarray–Only these queue ids (see placetel_list_call_center_queues).

No output schema declared.

No examples provided.

placetel_list_call_center_queues ~102

List call-center queues with name, ring time, loops and prompts. Use the ids to filter call-center calls. GET /call_center_queues.

NameTypeReqDescription
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.

No output schema declared.

No examples provided.

placetel_list_call_detail_records ~123

Call detail records (billing view) for one day: from, to, answering SIP user, length in seconds, cost amount and description. date is required. GET /call_detail_records.

NameTypeReqDescription
datestringyesDay to list, yyyy-mm-dd.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.

No output schema declared.

No examples provided.

placetel_list_calls ~185

Incoming calls (accepted, missed, blocked, voicemail) on one day, today by default: caller number, called number, duration, matching contact, voicemail file URL and unread flag. For a different day pass date. GET /calls.

NameTypeReqDescription
datestring–Day to list, yyyy-mm-dd (default: today).
from_numberstring–Only calls from this caller number.
orderstring–Sort order by time.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
to_numberstring–Only calls to this of your numbers.
typestring–Call outcome filter.

No output schema declared.

No examples provided.

placetel_list_contacts ~316

List the shared phone-book contacts with names, company, phone/mobile/fax numbers, emails, tags and blocked flag. Filter by name, company, email, number or update time. search_number finds a contact by any of its numbers. GET /contacts.

NameTypeReqDescription
blockedboolean–Only blocked (true) or only non-blocked (false) contacts.
companystring–Filter by company.
emailstring–Filter by private email.
email_workstring–Filter by work email.
first_namestring–Filter by first name.
last_namestring–Filter by last name.
mobilestring–Filter by private mobile.
mobile_workstring–Filter by work mobile.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
phonestring–Filter by private phone.
phone_workstring–Filter by work phone.
search_numberstring–Find the contact that owns this phone number (any of its number fields).
speeddialinteger–Filter by speed-dial code.
updated_sincestring–Only contacts updated at or after this date/time.
updated_untilstring–Only contacts updated at or before this date/time.

No output schema declared.

No examples provided.

placetel_list_faxes ~150

In- and outbound faxes with from/to number, status, pages, duration, type and the file URL. Filter by direction or number. GET /faxes.

NameTypeReqDescription
from_numberstring–Only faxes from this number.
orderstring–Sort order.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
to_numberstring–Only faxes to this number.
typestring–Direction filter.

No output schema declared.

No examples provided.

placetel_list_groups ~124

List ring groups (ring_all, hunt, monitoring) with members. Filter by name, description or type. GET /groups.

NameTypeReqDescription
descriptionstring–Filter by description.
namestring–Filter by name.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
typestring–Group type.

No output schema declared.

No examples provided.

placetel_list_number_profiles ~65

The routing profiles of a phone number (for example Standard, Holiday, Night) and which one is active. Needs a Placetel plan with number profiles. GET /numbers/{number_id}/profiles.

NameTypeReqDescription
number_idintegeryesPlacetel number id.

No output schema declared.

No examples provided.

placetel_list_numbers ~189

List the phone numbers of the account with number, E.164 form, name, description, site, activation state and the routing object id that answers them. GET /numbers.

NameTypeReqDescription
activatedboolean–Only activated (true) or deactivated (false) numbers (Profi plans).
descriptionstring–Filter by description.
namestring–Filter by name.
numberstring–Filter by number.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
prefixstring–Filter by area-code prefix.
site_idinteger–Only numbers of this site (see placetel_list_sites).

No output schema declared.

No examples provided.

placetel_list_recordings ~170

Call recordings with direction, from, to, duration, time and the file URL. Filter by direction, number or day. GET /recordings.

NameTypeReqDescription
datestring–Only recordings of this day, yyyy-mm-dd.
directionarray–Directions to include, e.g. ["in","out"].
fromstring–Only recordings from this number.
orderstring–Sort order by time.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
tostring–Only recordings to this number.

No output schema declared.

No examples provided.

placetel_list_routing_plans ~99

List routing plans (time-based call distribution plans) with name, description, ring duration and object counts. GET /routing_plans.

NameTypeReqDescription
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.

No output schema declared.

No examples provided.

placetel_list_routings ~152

List routing objects (what happens to an incoming call: forward, group, routing plan, IVR, queue, voicemail, API) with their settings and time settings. Filter by update time. GET /routings.

NameTypeReqDescription
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
updated_sincestring–Only routings updated at or after this date/time.
updated_untilstring–Only routings updated at or before this date/time.

No output schema declared.

No examples provided.

placetel_list_sip_users ~159

List SIP users (phone extensions, softphones, fax and trunk lines) with extension number (did), caller id, type, online state and registrations. SIP passwords and PINs are never returned. GET /sip_users.

NameTypeReqDescription
descriptionstring–Filter by description.
didinteger–Filter by internal extension number.
namestring–Filter by name.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
usernamestring–Filter by SIP username.

No output schema declared.

No examples provided.

placetel_list_sites ~84

List company sites (locations) with address and prefix. GET /sites.

NameTypeReqDescription
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.

No output schema declared.

No examples provided.

placetel_list_users ~169

List the web users of the account (main account and sub-users) with name, email, login, type, permissions and numbers. Filter by name, email, login or type. GET /users.

NameTypeReqDescription
emailstring–Filter by email.
first_namestring–Filter by first name.
last_namestring–Filter by last name.
loginstring–Filter by login.
pageinteger–Page number, from 1 (default 1). Pass the previous reply's next_page.
per_pageinteger–Results per page, 1-100 (default 25). Not every endpoint honours it; keep paging until a page is empty.
typestring–Only the main account or only sub-users.

No output schema declared.

No examples provided.

placetel_send_sms ~91

WRITE: send a real SMS to a phone number from the Placetel account. The recipient receives it immediately and SMS charges apply; it cannot be recalled. Do not use without the user's explicit request and exact text. POST /sms.

NameTypeReqDescription
messagestringyesThe exact message text (sent unchanged).
recipientstringyesRecipient number, e.g. +4915112345678.

No output schema declared.

No examples provided.

placetel_update_contact ~244

WRITE: update the given fields of a contact (omitted fields stay; an empty string clears a text field). tags replaces the whole tag list; blocked=true blocks the caller. PUT /contacts/{id}.

NameTypeReqDescription
addressstring–Private address.
address_workstring–Work address.
blockedboolean–true = calls from this contact are blocked.
companystring–Company.
contact_idintegeryesPlacetel contact id.
emailstring–Private email address.
email_workstring–Work email address.
faxstring–Private fax number.
fax_workstring–Work fax number.
first_namestring–First name.
last_namestring–Last name.
mobilestring–Private mobile number.
mobile_workstring–Work mobile number.
phonestring–Private phone number.
phone_workstring–Work phone number.
speeddialstring–Speed-dial code.
tagsarray–Tags (replaces the existing tags on update; [] clears them).

No output schema declared.

No examples provided.

Install

How do I install the Placetel MCP by usefulapi server?

Placetel MCP by usefulapi is a hosted endpoint at https://placetel.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 · placetel.usefulapi.io

# add to Claude Code
claude mcp add --transport http io-usefulapi-placetel 'https://placetel.usefulapi.io/mcp'
Common questions

What is the Placetel MCP by usefulapi server?

Placetel MCP by usefulapi is listed in the public MCP registry as io.usefulapi/placetel. Read Placetel calls, recordings, numbers and routing; edit contacts, start calls, send SMS. This page covers its hosted endpoint (https://placetel.usefulapi.io/mcp).

Is the Placetel MCP by usefulapi server safe to use?

Placetel MCP by usefulapi scores 62 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 Placetel MCP by usefulapi server expose?

Placetel MCP by usefulapi exposes 28 tools: placetel_get_account, placetel_list_users, placetel_list_sip_users, placetel_get_sip_user, placetel_list_calls, and 23 more. Their descriptions and schemas cost roughly 3,535 tokens of context every time the server is loaded.

Does the Placetel MCP by usefulapi server require authentication?

Yes. Placetel MCP by usefulapi 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 Placetel MCP by usefulapi server still maintained?

Placetel MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 25 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.