Fillo

SSE

by jacobfunch

870 downloads Not rated yet

GitHub Website SSE

About

Headless form infrastructure — forms render natively in your product (no iframe), files upload browser-direct to storage you own, and a coding agent can provision, publish, and query them over MCP.

Details

Transport: SSE

Explore

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below

Plugin Name Fillo

Command (node, npx, python, etc.)

Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

McpServers

{
    "server": {
        "command": "npx",
        "args": [
            "-y",
            "@usefillo/mcp"
        ]
    }
}

Transport

"stdio"

Package

"@usefillo/mcp"

Registry

"npm"

TheFilloMCP server. It gives a coding agent the full Fillo loop — provision a workspace, scaffold a form into the host repo, publish it, and query its responses — without leaving the session, authenticated exactly like a human CLI user.

claude mcp add fillo -- npx -y @usefillo/mcp

Any other MCP client: runnpx -y @usefillo/mcpover stdio. SetFILLO_APIto point at a non-production deployment.

The server reads the same credentials the CLI writes to~/.fillo/config.json, or from the environment:

- FILLO_TOKEN— afcli_…login token (fromnpx @usefillo/cli login). Authenticated tools (fillo_list_forms,fillo_publish_form, and trusted pushes to a claimed workspace), plus local project selection with an ordinary login. File-request pushes remain draft/staged for review.
- FILLO_PK— apk_…publishable key.fillo_provision_workspacemints one and saves it for you.
- FILLO_API_KEY— afsk_…project API key, minted inSettings → Connectionsof a claimed workspace. Required by the response tools.
- FILLO_API— overrides the origin (defaulthttps://fillo.so).
- FILLO_CONFIG_DIR— overrides the config directory (default~/.fillo).

The server never prints login tokens, API keys, or claim tokens into the transcript. Thepk_publishable key is safe to surface (it lives in browser code), sofillo_provision_workspacereturns it for you to wire into the app's public env. Provisioning also makes that temporary project the active local MCP context, so an older saved account login cannot receive the next push. Selecting a project switches the context back to the account.

There are no delete tools. Write annotations still use the conservative worst-case hint because a push can replace draft state and a publish can replace the public schema. Every tool is a thin wrapper over Fillo's public HTTP API — the server never touches the database and imports no app code, so workspace scoping, rate limits, and validation stay in one place.

The three project tools are local-only and require the general token minted byfillo login. A project-specific handoff and a hosted remote-MCP OAuth grant remain pinned to the project a human approved. Selecting locally also clears cached preview andfsk_state from the prior project; replace anyFILLO_PKorFILLO_API_KEYenvironment overrides yourself.

Projects are sites/apps beneath one billed workspace. They isolate forms, publishable/API keys, allowed origins, respondent identities, and agent authority. Workspace membership, billing, storage connections, and usage totals remain shared.

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Install

{
    "mcpServers": {
        "fillo": {
            "server": {
                "command": "npx",
                "args": [
                    "-y",
                    "@usefillo/mcp"
                ]
            }
        }
    }
}

About

Details

Explore

Setting up with Highlight

Claude Desktop / Cursor

McpServers

Transport

Package

Registry

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