Signed, non-replayable API auth. Agents self-register and sign requests with ERC-8128.
To add AuthProof to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It declares 4 environment variables, listed below.
Install
npx -y @authproof/mcp-server@0.3.0Environment variables
AUTHPROOF_SERVERSet in your MCP configAGENT_PRIVATE_KEYSet in your MCP configAUTHPROOF_CHAIN_IDSet in your MCP configAUTHPROOF_RPC_URLSet in your MCP configSet only if the maker requires them; this listing does not flag any of them as required.
Install with your client
claude mcp add authproof --env AUTHPROOF_SERVER=<YOUR_AUTHPROOF_SERVER> --env AGENT_PRIVATE_KEY=<YOUR_AGENT_PRIVATE_KEY> --env AUTHPROOF_CHAIN_ID=<YOUR_AUTHPROOF_CHAIN_ID> --env AUTHPROOF_RPC_URL=<YOUR_AUTHPROOF_RPC_URL> -- npx -y @authproof/mcp-server@0.3.0
Run this in a terminal to add the server to Claude Code.
What this does
AuthProof exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server declares the following environment variables. Set only the ones the maker requires for your setup; this listing does not flag any of them as required:
AUTHPROOF_SERVER AGENT_PRIVATE_KEY AUTHPROOF_CHAIN_ID AUTHPROOF_RPC_URL
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install AuthProof?
Run the Claude Code command in the install section to add AuthProof to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with AuthProof?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to AuthProof as well.
Does AuthProof need an API key?
This listing does not flag an API key as required. The server can use these environment variables: AUTHPROOF_SERVER, AGENT_PRIVATE_KEY, AUTHPROOF_CHAIN_ID, AUTHPROOF_RPC_URL; the maker's docs say which of them your setup needs. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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