Billify MCP by usefulapi MCP Server

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answering

Billify MCP by usefulapi is answering right now. Last checked 12 min ago. It exposes 8 tools. Last commit 11 Nov 2026.

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

Uptime history 5 hours of history

5 hours agonow

100.0%

Uptime 24h

18 of 18 checks

Tools

read from the server

251 ms

Response time

average over 24h

Stars

last commit 11 Nov 2026

Nothing serious here today

Today is the operative word: we check Billify MCP by usefulapi every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add billify --transport http https://billify.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://billify.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.billify]
url = "https://billify.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "billify": {
      "url": "https://billify.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "billify": {
      "type": "http",
      "url": "https://billify.usefulapi.io/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

billify

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.

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.

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}.

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}.

billify_get_offer

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

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.

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.

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.

Endpoints

URL	Transport	State	Latency	Checked
https://billify.usefulapi.io/mcp	streamable-http	answering	388 ms	12 min ago

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Billify MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Billify MCP by usefulapi do?

It exposes 8 tools, read directly from the server on our last check. Among them: billify_create_client, billify_create_offer, billify_get_client, billify_get_invoice, billify_get_offer, billify_list_clients and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Billify MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 18 of 18 checks got a reply (100.0%), average response time 251 ms. The bar chart above shows every period we have measured.

How do I connect Billify MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Billify MCP by usefulapi need an API key?

No. Billify MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Billify MCP by usefulapi?

It answers our handshake in 251 ms on average, which is faster than 53% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Billify MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at billify.usefulapi.io, which runs on its operator's own terms.