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

Read-only probes

MCP server · Payments & trading

Billify MCP by usefulapi

By usefulapi.io Verified namespace

Read clients, offers and invoices; create clients and offer drafts in Billify.

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

0 failed · 8 not measured

Median response
381 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
8

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Outdated check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 381 ms.

  • Pass
    Valid handshake

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

  • Pass
    Lists tools

    tools/list returned 8 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 381 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 381 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

    33 of 33 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 2026-11-10T23:35:25.792485Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using Billify 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 billify-mcp-by-usefulapi https://billify.usefulapi.io/mcp

Capabilities

Tools 8

billify_create_client

Create a client. First searches the newest 100 clients: a company name that matches (no case) returns that client and creates nothing. Billify also answers 409 for an existing name, and this tool then returns that client. Duplicates are never created: Billify's allowDuplicate option is not offered. Billify API: POST /api/v1/clients.

Discovered
billify_create_offer

Create an offer as a DRAFT for an existing client. Billify sets the offer number, computes each total and amount, and ignores any amount sent, so none are sent. The offer is not sent to the client: the user sends it in Billify after checking the preview. The response includes appUrl. Billify API: POST /api/v1/offers.

Discovered
billify_get_client

Get one client by id, with its contact details, address, language and the number of its invoices and offers. Billify API: GET /api/v1/clients/{id}.

Discovered
billify_get_invoice

Get one invoice by id, with its line items, status, dates, amounts, payment status and QR reference. Billify API: GET /api/v1/invoices/{id}.

Discovered
billify_get_offer

Get one offer by id, with its line items, status, amounts and dates. Billify API: GET /api/v1/offers/{id}.

Discovered
billify_list_clients

List the newest 100 clients of the company, without deleted ones. Billify has no paging and no filter in its API: company_name matches only those 100, without case. Use it before creating a client. Billify API: GET /api/v1/clients.

Discovered
billify_list_invoices

List the newest 100 invoices with their line items. Invoices cannot be created, sent, changed or deleted through this API. Billify has no paging and no filter: client_id and status match only those 100. Billify API: GET /api/v1/invoices.

Discovered
billify_list_offers

List the newest 100 offers with their line items. Billify has no paging and no filter in its API: client_id and status match only those 100. Billify API: GET /api/v1/offers.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected381 ms8

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