ChatGPT

anvil for ChatGPT

io.usefulapi/anvil

Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents.

client:ChatGPT transport:streamable-http tools:10

Install anvil in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://anvil.usefulapi.io/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs

What ChatGPT can do once it is connected

anvil in other clients

anvil MCP server