X402 Trust MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 707 installs a week from npm. Last commit 14 Sep 2026.
Trust & reliability data for x402 endpoints before your agent pays them.
Today is the operative word: we check X402 Trust MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add x402-trust-mcp -- npx -y x402-trust-mcp
{
"mcpServers": {
"x402-trust-mcp": {
"args": [
"-y",
"x402-trust-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.x402-trust-mcp]
command = "npx"
args = ["-y", "x402-trust-mcp"]
{
"mcpServers": {
"x402-trust-mcp": {
"args": [
"-y",
"x402-trust-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"x402-trust-mcp": {
"args": [
"-y",
"x402-trust-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
X402_PRIVATE_KEY (Optional Base wallet private key (with or without the 0x prefix). When set, the paid tools auto-pay over x402 up to X402_MAX_USD; otherwise they return a price quote. The free tools need no key.), X402_MAX_USD (Per-call auto-pay ceiling in USD. 0 disables auto-pay.), X402_MAX_TOTAL_USD (Cumulative auto-pay cap per process in USD. 0 = unlimited.), X402_MAX_CALLS (Max paid calls per process. 0 = unlimited.), X402_TRUST_API_BASE (API base URL.), X402_TIMEOUT_MS (Request timeout in milliseconds.).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.