19 focused API tools for AI agents: contract review, prompt optimizer, context packing, and more.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add agent-toolbelt --env AGENT_TOOLBELT_KEY='<AGENT_TOOLBELT_KEY>' -- npx -y agent-toolbelt-mcp~/.codex/config.toml
[mcp_servers.agent-toolbelt]
command = "npx"
args = ["-y", "agent-toolbelt-mcp"]
env = { AGENT_TOOLBELT_KEY = "<AGENT_TOOLBELT_KEY>" }
# codex mcp add agent-toolbelt --env AGENT_TOOLBELT_KEY='<AGENT_TOOLBELT_KEY>' -- npx -y agent-toolbelt-mcp~/.cursor/mcp.json
{
"mcpServers": {
"agent-toolbelt": {
"command": "npx",
"args": [
"-y",
"agent-toolbelt-mcp"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"agent-toolbelt": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"agent-toolbelt-mcp"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"agent-toolbelt": {
"command": "npx",
"args": [
"-y",
"agent-toolbelt-mcp"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"agent-toolbelt": {
"command": "npx",
"args": [
"-y",
"agent-toolbelt-mcp"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"agent-toolbelt": {
"command": "npx",
"args": [
"-y",
"agent-toolbelt-mcp"
],
"env": {
"AGENT_TOOLBELT_KEY": "<AGENT_TOOLBELT_KEY>"
}
}
}
}Environment variables
AGENT_TOOLBELT_KEY
Replace the placeholders with your own credentials and keep them out of version control.