TWZRD Agent Intelligence MCP server

TWZRD

Don't let your agent sign blind. Spend control and counterparty trust for agents paying over x402 on Solana (and Base). Vet the seller before USDC leaves the wallet, cap and ledger every spend, and bind each settled payment to the exact offer it paid for (bind-v1 — verifiable from public chain data). Advisory preflight is free ($0). Signed execution clearance is $0.001 (twzrd.payment_decision.v1 / quickCheck). Not a wallet. Not a payment network. Not Catena's Agent Commerce Kit — the walkthrough lives in docs/COMMERCE-KIT.md.

Canonical skill (always refresh) • https://intel.twzrd.xyz/skill.md (twzrd-trust 1.13.24) · ClawHub twzrd-trust Spend-control SDK (npm) • twzrd-x402-gate@0.9.9 + seat x402-solana@3.0.0 Live MCP • https://intel.twzrd.xyz/mcp (streamable HTTP — 22 tools) Agent contract • https://intel.twzrd.xyz/llms.txt · https://intel.twzrd.xyz/.well-known/agent.json

60-second deterministic free demo

Run this one-line command with no wallet, no API key, and no configuration:

curl -fsS https://intel.twzrd.xyz/v1/intel/demo-gate | jq '{verdict: (.steps[] | select(.name == "block_path") | .verdict), approved: (.steps[] | select(.name == "block_path") | .approved), signerInvocations: (.steps[] | select(.name == "block_path") | .signer_invocations), mode, ok}'

Without jq, run: curl -fsS https://intel.twzrd.xyz/v1/intel/demo-gate

Expected output:

{
  "verdict": "block",
  "approved": false,
  "signerInvocations": 0,
  "mode": "no_spend",
  "ok": true
}

Blocks happen before your signer is invoked (signerInvocations: 0) — zero USDC at risk.

From this repo

This checkout is a public monorepo, not npm install twzrd-x402-gate. CI is root npm ci then npm run ci (Node 20). Do not npm ci inside twzrd-x402-gate/ — gate typecheck needs sibling twzrd-log-verifier deps from the root lockfile.

npm ci
npm run build
npm run typecheck
npm test --workspace=twzrd-x402-gate
npm run gate-eval-refuse --workspace=twzrd-x402-gate

gate-eval-refuse is the hello-world that closes (0 USDC, signerinvocationcount: 0). It needs egress to https://intel.twzrd.xyz. Artifact dirs (eliza-plugin/, plugin-trustgate/, twzrd-mcp-server/) are dist/ mirrors — do not try to build or demo them locally. Hosted MCP: https://intel.twzrd.xyz/mcp.

Quickstart

1. Install

npm install twzrd-x402-gate@0.9.9 x402-solana@3.0.0

2. Wrap paid fetches with spend controls

import { twzrd } from "twzrd-x402-gate";

const result = await twzrd.safeFetch("https://merchant.example/paid-endpoint", {
  maxSpend: "0.10",            // per-call cap AND cumulative budget in USD
  allowNetworks: ["solana"],   // allowed settlement networks
  requireOfferBinding: true,   // demand an on-chain verifiable bind-v1 receipt
  pay: async ({ url, paymentRequired, selected }) => {
    // Your existing x402 client signs here — e.g. @x402/fetch + your signer
    return await myWallet.payX402(url, paymentRequired, selected);
  },
});

// On block: result.verdict === "block", result.signerInvocations === 0

3. Or hook an existing client

import { createX402Client } from "x402-solana";
import { createTwzrdBeforePaymentHook } from "twzrd-x402-gate";

const client = createX402Client({
  wallet,
  network: "solana",
  beforePayment: createTwzrdBeforePaymentHook({ refuseWashFlagged: true }),
});

Commerce loop

One path. Install twzrd-x402-gate@0.9.9. Free preflight does not enforce; AutoGate on the pay path does.

Shortened. The full README is on GitHub.