Fillo MCP Server

by jacobfunch Your server? Claim it

answering

Fillo is answering right now. Last checked 9 min ago. 210 installs a week from npm. Last commit 17 Sep 2026.

Fillo MCP server — provision, scaffold, publish, and query forms from your coding agent.

Installs per day peak 162 · avg 25 · -1% w/w

a month agotoday

Uptime history 42 days of history · worst day 97%

42 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

155 ms

Response time

average over 24h

210

Installs / week

npm and PyPI

What the code does

We read the source, 22 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a database query by concatenation packages/cli/src/commands/agent.ts:308

    agent event         Send a short progress update
                       ${dimRaw(`--status <${AGENT_EVENT_STATUSES.join("|")}>`)}

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add usefillo --transport http https://fillo.so/api/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "usefillo": {
      "url": "https://fillo.so/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.usefillo]
url = "https://fillo.so/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "usefillo": {
      "url": "https://fillo.so/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "usefillo": {
      "url": "https://fillo.so/api/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://fillo.so/api/mcp	streamable-http	sign-in	148 ms	9 min ago

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Fillo — questions

Answers built from our own checks of this server.

Why is there no tool list for Fillo?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Fillo working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 155 ms. The bar chart above shows every period we have measured.

How do I connect Fillo?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Fillo?

No API key is involved. Fillo answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Fillo?

It answers our handshake in 155 ms on average, which is faster than 76% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Fillo?

The npm package @usefillo/mcp was installed 210 times in the last week. Week over week that is -1%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Fillo open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.