AI Plugin Index
Signer
Verified · npm:@haven_aiMCP server by d-hinders · updated · ★ 0 · 780 downloads a week
Haven edge signer — holds the agent's delegate key locally and signs payment hashes + x402 headers. Pairs with the hosted, keyless @haven_ai/mcp-server; the key never leaves the machine. Signer is published by npm:@haven_ai from its verified domain in the official MCP Registry.
Last commit in the past day
No licence found, so reuse rights are unclear
Clear description, published package or server URL, original repository
Not checked yet. What we check
Install Signer
Built from the published package, never by AIclaude mcp add signer -- npx -y @haven_ai/signerRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"signer": {
"command": "npx",
"args": [
"-y",
"@haven_ai/signer"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"signer": {
"command": "npx",
"args": [
"-y",
"@haven_ai/signer"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"signer": {
"command": "npx",
"args": [
"-y",
"@haven_ai/signer"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add signer -- npx -y @haven_ai/signer{
"mcpServers": {
"signer": {
"command": "npx",
"args": [
"-y",
"@haven_ai/signer"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add signer npx -y @haven_ai/signerGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the signer block.
Alternatives to Signer
All alternatives →
MCP server integrating with Stripe - tools for customers, products, payments, and more.
Official CCXT MCP server - Market data and trading across 100+ exchanges and prediction markets
200+ transparent financial metrics calculated from raw statements, not third-party endpoints.
x402 Payment Protocol
x402 Payment Protocol
JS API for Yahoo Finance
Signer: common questions
How do I install Signer?
In Claude Code run claude mcp add signer -- npx -y @haven_ai/signer. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Signer the official server?
Signer is published by npm:@haven_ai from its verified domain in the official MCP Registry.
Is Signer free?
The code is public, but no licence file was found, so check the repository before commercial use.
Is Signer safe to use?
It scores 75 of 100. Grades: maintenance A, licence F, quality C. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Signer?
Similar MCP servers: mcp, CCXT, Finance Toolkit, X402 MCP.
Does Signer work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.