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

Read-only probes

MCP server · Payments & trading

billey MCP by usefulapi

By usefulapi.io Verified namespace

Read clients, invoices, expenses, bank transactions and time entries in billey.

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

0 failed · 8 not measured

Median response
252 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
11

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Outdated check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 252 ms.

  • Pass
    Valid handshake

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

  • Pass
    Lists tools

    tools/list returned 11 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 252 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 252 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

    38 of 38 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 2026-11-10T23:34:45.058926Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using billey 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 billey-mcp-by-usefulapi https://billey.usefulapi.io/mcp

Capabilities

Tools 11

billey_get_client

Get one client by id, with its contact and payment details. billey API: GET /api/v1/clients/{client}.

Discovered
billey_get_invoice

Get one invoice by id, with its client summary and line items. billey API: GET /api/v1/invoices/{invoice}.

Discovered
billey_list_bank_transactions

List imported bank transactions (amount, executed date, counterparty, match and allocation state). Returns cursor pagination. billey API: GET /api/v1/bank-transactions (needs transactions:read).

Discovered
billey_list_clients

List the clients of the book (name, contact, payment terms, collection method). Returns cursor pagination: follow links.next. Use updated_after to sync only changes. billey API: GET /api/v1/clients.

Discovered
billey_list_expenses

List expenses (purchase costs) with amounts, dates, the vendor summary and the account. Returns cursor pagination. billey API: GET /api/v1/expenses.

Discovered
billey_list_invoices

List invoices with status, dates, totals (decimal strings), the client summary and line items. Filter with updated_after for changes since a time. Returns cursor pagination. billey API: GET /api/v1/invoices.

Discovered
billey_list_products

List products and services from the book's catalogue (unit price, VAT percentage, SKU). Returns cursor pagination. billey API: GET /api/v1/products (needs products:read).

Discovered
billey_list_projects

List projects with their client summary. Returns cursor pagination. billey API: GET /api/v1/projects (needs projects:read).

Discovered
billey_list_quotes

List quotes (offers) with status, dates, totals and line items. Returns cursor pagination. billey API: GET /api/v1/quotes (needs the quotes:read ability).

Discovered
billey_list_time_entries

List logged time entries (hours and hourly rate as decimal strings, date, project). Returns cursor pagination. billey API: GET /api/v1/time-entries (needs time-entries:read).

Discovered
billey_list_vendors

List vendors (suppliers) with their contact and payment details. Returns cursor pagination. billey API: GET /api/v1/vendors.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected252 ms11

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