19 focused API tools for AI agents: contract review, prompt optimizer, context packing, and more.
Connect Runs on your machine
claude mcp add agent-toolbelt-mcp -e AGENT_TOOLBELT_KEY=<AGENT_TOOLBELT_KEY> -- npx -y [email protected]
{
"mcpServers": {
"agent-toolbelt-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}
{
"mcpServers": {
"agent-toolbelt-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}
{
"servers": {
"agent-toolbelt-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
AGENT_TOOLBELT_KEYRequired, secret | Your Agent Toolbelt API key. Get one free at https://agent-toolbelt-production.up.railway.app |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 3 Mar 2026 |
| Last updated | 3 Mar 2026 |
| Registry name | io.github.marras0914/agent-toolbelt-mcp |
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