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io.usefulapi/aircall

REMOTE · AIRCALL.USEFULAPI.IO · SCANNED SEP 20

Read calls, contacts, users, teams and numbers; tag calls and create or update contacts.

+68 this week 86 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 Security78
  • The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
  • Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
  • HTTPS enforcement could not be verified: the plaintext port answered with HTTP 401, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
  • HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
  • DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
  • The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
Schema Quality & AI Usability82
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 1705 tokens (~68/item across 25 items; 25 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
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
  • We read all 25 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 25 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/aircall MCP server?

io.usefulapi/aircall is a hosted endpoint at https://aircall.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 · aircall.usefulapi.io

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

  • 16 Sept 26 +68
    • Transport: unverified → pass security
    • Authorization: unverified → pass security
    • Injection markers: unverified → pass security
    • Stability: unverified → pass security
    • First check of Judged manipulation: pass security
    • MCP protocol: unverified → fail functional
    • Endpoint reachability: not serving MCP → reachable functional
    • Tool coverage: unverified → 100 functional
    • First check of Destructive annotations: pass functional
  • 9 Sept 26 −10
    • Transport: pass → unverified security
  • 8 Sept 26 +10
    • Transport: unverified → pass security
  • 26 Aug 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 22 Aug 26 18
    • Endpoint reachability: reachable → not serving MCP security
    • Authorization: pass → unverified security
    • Transport: pass → unverified security
    • Stability: 0.67 → unverified security
    • Capabilities: fail → unverified functional
    • Tool coverage: 100 → unverified functional
    • First check of Schema quality: unverified functional
  • 11 Aug 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 2 Aug 26 0
    • Stability: unverified → 0.03 functional
  • 1 Aug 26 0

    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 20 Sept 2026 · Probed https://aircall.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 1 Aug 2026 30 Oct 2026 ECDSA 256 ECDSA-SHA256 7f4fedfe22d0b81f0e738c058ffa4d35
SANs: usefulapi.io, aircall.usefulapi.io, *.aircall.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 aircall.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://aircall.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"

Bearer realm="OAuth", resource_metadata="https://aircall.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"

Protected resource metadata

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

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

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://aircall.usefulapi.io/mcp Verified 200
http (plaintext) http://aircall.usefulapi.io/mcp Inconclusive 401
MCP tools · 25 exposed · ~1,705 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
aircall_add_call_comment ~57

Add a comment / note to a call. Aircall REST: POST /calls/{id}/comments.

NameTypeReqDescription
contentstringyesThe comment text (required).
idintegeryesThe call id to comment on.

No output schema declared.

No examples provided.

aircall_create_contact ~136

Create a new contact in the shared address book. Aircall typically requires at least one of first_name / last_name / company_name. Aircall REST: POST /contacts.

NameTypeReqDescription
company_namestringThe contact's company name.
emailsarrayEmail addresses for the contact, each { label, value }.
first_namestringThe contact's first name.
informationstringFreeform notes about the contact.
last_namestringThe contact's last name.
phone_numbersarrayPhone numbers for the contact, each { label, value }.

No output schema declared.

No examples provided.

aircall_get_call ~56

Get a single call by id. Aircall REST: GET /calls/{id}.

NameTypeReqDescription
fetch_contactbooleanIf true, include the full contact details for the call.
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_call_action_items ~55

Get the AI-extracted action items / follow-ups from a call (Aircall AI Voice feature). Aircall REST: GET /calls/{id}/action_items.

NameTypeReqDescription
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_call_sentiments ~51

Get the AI-generated sentiment analysis of a call (Aircall AI Voice feature). Aircall REST: GET /calls/{id}/sentiments.

NameTypeReqDescription
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_call_summary ~48

Get the AI-generated summary of a call (Aircall AI Voice feature). Aircall REST: GET /calls/{id}/summary.

NameTypeReqDescription
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_call_topics ~49

Get the AI-detected topics of a call (Aircall AI Voice feature). Aircall REST: GET /calls/{id}/topics.

NameTypeReqDescription
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_call_transcription ~50

Get the AI-generated transcription of a call (Aircall AI Voice feature). Aircall REST: GET /calls/{id}/transcription.

NameTypeReqDescription
idintegeryesThe call id.

No output schema declared.

No examples provided.

aircall_get_company ~33

Get details of the authenticated Aircall company (name, plan, usage). Aircall REST: GET /company.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

aircall_get_contact ~37

Get a single contact by id. Aircall REST: GET /contacts/{id}.

NameTypeReqDescription
idintegeryesThe contact id.

No output schema declared.

No examples provided.

aircall_get_number ~38

Get a single phone number by id. Aircall REST: GET /numbers/{id}.

NameTypeReqDescription
idintegeryesThe number id.

No output schema declared.

No examples provided.

aircall_get_tag ~37

Get a single tag by id. Aircall REST: GET /tags/{id}.

NameTypeReqDescription
idintegeryesThe tag id.

No output schema declared.

No examples provided.

aircall_get_team ~37

Get a single team by id. Aircall REST: GET /teams/{id}.

NameTypeReqDescription
idintegeryesThe team id.

No output schema declared.

No examples provided.

aircall_get_user ~40

Get a single user (agent) by id. Aircall REST: GET /users/{id}.

NameTypeReqDescription
idintegeryesThe user id.

No output schema declared.

No examples provided.

aircall_list_calls ~151

List calls, optionally filtered by a creation-date window and ordered. Aircall REST: GET /calls.

NameTypeReqDescription
fetch_contactbooleanIf true, include the full contact details of each call.
fromstringMinimal creation date — a UNIX timestamp or ISO 8601 string.
orderstringSort order by creation date — 'asc' or 'desc' (default asc).
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).
tostringMaximal creation date — a UNIX timestamp or ISO 8601 string.

No output schema declared.

No examples provided.

aircall_list_contacts ~135

List contacts in the shared address book, optionally by creation-date window and order. Aircall REST: GET /contacts.

NameTypeReqDescription
fromstringMinimal creation date — a UNIX timestamp or ISO 8601 string.
orderstringSort order by creation date — 'asc' or 'desc' (default asc).
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).
tostringMaximal creation date — a UNIX timestamp or ISO 8601 string.

No output schema declared.

No examples provided.

aircall_list_numbers ~72

List the phone numbers owned by the company (id, name, digits, country). Aircall REST: GET /numbers.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).

No output schema declared.

No examples provided.

aircall_list_tags ~67

List the company's call tags (id, name, color). Aircall REST: GET /tags.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).

No output schema declared.

No examples provided.

aircall_list_teams ~64

List the company's teams and their members. Aircall REST: GET /teams.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).

No output schema declared.

No examples provided.

aircall_list_users ~74

List users (agents) in the Aircall company (id, name, email, availability). Aircall REST: GET /users.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).

No output schema declared.

No examples provided.

aircall_ping ~31

Health check — verify the API is reachable and the credentials are valid. Aircall REST: GET /ping.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

aircall_search_calls ~87

Search calls by a free-text term (e.g. phone number, tag, direction). Aircall REST: GET /calls/search.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).
qstringSearch term to match calls against.

No output schema declared.

No examples provided.

aircall_search_contacts ~87

Search contacts by a free-text term (e.g. name, phone number, email). Aircall REST: GET /contacts/search.

NameTypeReqDescription
pageinteger1-based page number to fetch (default 1).
per_pageintegerResults per page (default 20, max 50).
qstringSearch term to match contacts against.

No output schema declared.

No examples provided.

aircall_tag_call ~75

Apply tags to a call by tag id (get ids from aircall_list_tags). Aircall REST: POST /calls/{id}/tags.

NameTypeReqDescription
idintegeryesThe call id to tag.
tag_idsarrayyesIds of the tags to apply (from aircall_list_tags) (required).

No output schema declared.

No examples provided.

aircall_update_contact ~138

Update fields on an existing contact. Only provided fields are changed. Aircall REST: PUT /contacts/{id}.

NameTypeReqDescription
company_namestringThe contact's company name.
emailsarrayReplace the contact's email addresses, each { label, value }.
first_namestringThe contact's first name.
idintegeryesThe contact id to update.
informationstringFreeform notes about the contact.
last_namestringThe contact's last name.
phone_numbersarrayReplace the contact's phone numbers, each { label, value }.

No output schema declared.

No examples provided.

Common questions

What is the io.usefulapi/aircall MCP server?

io.usefulapi/aircall is an MCP server listed in the public MCP registry as io.usefulapi/aircall. Read calls, contacts, users, teams and numbers; tag calls and create or update contacts. This page covers its hosted endpoint (https://aircall.usefulapi.io/mcp).

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

io.usefulapi/aircall scores 86 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/aircall MCP server expose?

io.usefulapi/aircall exposes 25 tools: aircall_ping, aircall_get_company, aircall_list_users, aircall_get_user, aircall_list_calls, and 20 more. Their descriptions and schemas cost roughly 1,705 tokens of context every time the server is loaded.

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

Yes. io.usefulapi/aircall 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/aircall MCP server still maintained?

io.usefulapi/aircall is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.