io.usefulapi/anvil MCP Server

Hosted MCP server for Anvil. The server supports workflows to fill and generate PDF documents and to run Etch e-signature packets for AI agents. It is exposed under the identifier io.usefulapi/anvil and is intended for use via MCP tooling where document processing and e-signature automation are required.

🛠️ Key Features

Fill PDFs
Generate PDFs
Run Etch e-signature packets for AI agents

🚀 Use Cases

AI agents that produce PDF output
Automated document preparation using PDF filling
E-signature packet execution for agent-driven workflows

⚡ Developer Benefits

Centralized MCP access to Anvil capabilities for PDF generation/filling and e-signature packet runs

⚠️ Limitations

Limited documented scope: only PDF fill/generate and Etch e-signature packet execution are specified

Anvil MCP by usefulapi

Fill and generate PDFs and run Etch e-signature packets from Claude, Cursor, or any MCP client. Hosted, no local install — connect with your Anvil API key.

Live endpoint: https://anvil.usefulapi.io/mcp · Homepage: https://usefulapi.io/anvil

Add to Claude

json

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

On first connect you'll paste your Anvil API key. It's validated, stored per-user, and scoped to you.

Tools

Tool	Type	What it does
`anvil_current_user`	read	Current user
`anvil_get_organization`	read	Get organization
`anvil_get_cast`	read	Get cast
`anvil_get_etch_packet`	read	Get etch packet
`anvil_get_weld`	read	Get weld
`anvil_get_weld_data`	read	Get weld data
`anvil_fill_pdf`	write	Fill pdf
`anvil_generate_pdf`	write	Generate pdf
`anvil_create_etch_packet`	write	Create etch packet
`anvil_generate_etch_sign_url`	write	Generate etch sign url
`anvil_usage_status`	meta	Usage status (free-tier meter)
`anvil_upgrade`	meta	Upgrade to Pro (unlimited)

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage or manage your subscription.

Pricing

Plan	Price	Limit
Free	$0	100 tool calls / month
Pro	$9/mo or $90/yr (2 months free)	Unlimited

License

MIT — see LICENSE. Documentation only; the server is hosted.

Anvil