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MCP server · Code & DevOps

OpenPhone MCP by usefulapi

By usefulapi.io Verified namespace

Send and read OpenPhone messages, calls, contacts and phone numbers.

WebsiteSource code
Connect to OpenPhone MCP by usefulapi
Checks passed
14 / 22

0 failed · 8 not measured

Median response
53 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
16

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

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 53 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name openphone-mcp.

  • Pass
    Lists tools

    tools/list returned 16 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 53 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 53 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

    50 of 50 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 2026-11-10T23:33:31.742558Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using OpenPhone 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 openphone-mcp-by-usefulapi https://openphone.usefulapi.io/mcp

Capabilities

Tools 16

openphone_create_contact

Create a new contact in the workspace. WRITE ACTION — this adds a persistent contact record. Emails and phoneNumbers are passed as simple string arrays and stored under default field labels. OpenPhone REST: POST /contacts.

Discovered
openphone_get_call

Get a single call by its id (starts with 'AC') — direction, status, duration, participants and timestamps. OpenPhone REST: GET /calls/{id}.

Discovered
openphone_get_call_recordings

Get the recordings for a call by its id — each with a URL, duration, start time and status. OpenPhone REST: GET /call-recordings/{callId}.

Discovered
openphone_get_call_summary

Get the AI-generated summary and next steps for a call by its id. Availability depends on your plan and whether the call was summarized. OpenPhone REST: GET /call-summaries/{callId}.

Discovered
openphone_get_call_transcript

Get the transcription for a call by its id — dialogue segments with speaker, text and timestamps, plus overall status and duration. OpenPhone REST: GET /call-transcripts/{id}.

Discovered
openphone_get_contact

Get a single contact by its id, including default fields (name, company, role, emails, phone numbers) and custom fields. OpenPhone REST: GET /contacts/{id}.

Discovered
openphone_get_contact_custom_fields

List the workspace's contact custom-field definitions (name, key, type). Use the returned keys when creating contacts with custom fields. OpenPhone REST: GET /contact-custom-fields.

Discovered
openphone_get_message

Get a single message by its id (starts with 'AC'). OpenPhone REST: GET /messages/{id}.

Discovered
openphone_list_calls

List calls between one of your OpenPhone numbers and a participant, newest first, optionally filtered by user and created date range. Returns direction, status, duration and timestamps. OpenPhone REST: GET /calls.

Discovered
openphone_list_contacts

List contacts in the workspace, optionally filtered by external ids or sources. Returns each contact's default fields (name, company, emails, phone numbers) and custom fields. OpenPhone REST: GET /contacts.

Discovered
openphone_list_conversations

List conversations (threads), most-recent activity first, optionally filtered by phone number(s), user, and created/updated date ranges. Each conversation has participants, assignee, and last-activity metadata. OpenPhone REST: GET /conversations.

Discovered
openphone_list_messages

List messages in a conversation between one of your OpenPhone numbers and one or more participants. Returns text, direction, status and timestamps. OpenPhone REST: GET /messages.

Discovered
openphone_list_phone_numbers

List the OpenPhone numbers in the workspace (id, number, name, formatted number, assigned users, restrictions). Usually the first call — most other tools need a phoneNumberId. OpenPhone REST: GET /phone-numbers.

Discovered
openphone_list_users

List workspace users (id, email, name, role). Use to find a userId for scoping other calls. OpenPhone REST: GET /users.

Discovered
openphone_list_webhooks

List all webhooks configured in the workspace (id, url, events, status). Read-only inventory — this tool does not create or delete webhooks. OpenPhone REST: GET /webhooks.

Discovered
openphone_send_message

Send an SMS/text message from one of your OpenPhone numbers to up to 10 recipients. WRITE ACTION — this actually sends a real text message (which may incur carrier cost and requires approved A2P 10DLC registration). OpenPhone REST: POST /messages.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected53 ms16

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