1. Conduid
  2. Blockchain
  3. Payguard
MCP server · Blockchain

Payguard

· github.com/edycutjong/payguard

GuardianRail — the safety layer x402 lacks: deterministic spend caps, asset-spoof protection, payee allowlist, and eth_call pre-flight simulation before an agent signs. Ships as a library and an MCP server.

Unclaimed ai-agentscertikpharossmart-contractssoliditytypescriptx402
InstallView source
37Low

Scored 3 months ago · breakdown

About Payguard

Payguard is an MCP server in the Blockchain category: guardianRail — the safety layer x402 lacks: deterministic spend caps, asset-spoof protection, payee allowlist, and eth_call pre-flight simulation before an agent signs. Ships as a library and an MCP server.

Install

Claude Code
claude mcp add payguard -- npx -y @edycutjong/payguard
npx
npx -y @edycutjong/payguard

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

Tools (11)

Contract coverage`forge coverage` (contracts/)

Parameters not published.

Contract testsFoundry — 256-run fuzz + reentrancy + EIP-3009

Parameters not published.

Guard unit checks`npm run test:guard` — boundary/coercion/precedence/budget edges

Parameters not published.

MCP compatibilityGuardianRail exposed as MCP tools (`npm run mcp`)

Parameters not published.

On-chain E2Eguarded payment settles on Atlantic

Parameters not published.

Secret scanningTruffleHog `--only-verified` (`make security-scan`)

Parameters not published.

Skill testsGuardianRail attack bench (8 vectors)

Parameters not published.

Static analysis (Solidity)Slither

Parameters not published.

Static analysis (TypeScript)CodeQL

Parameters not published.

Supply chainnpm audit + Dependabot

Parameters not published.

Type safety`tsc --noEmit`

Parameters not published.

Ask AI

✦

Ask AI about Payguard

Powered by Claude · Grounded in docs

I know everything about Payguard. Ask me about installation, configuration, usage, or troubleshooting.

Security checks

6 checks have not been run yet.

Questions

About Payguard

How do I install Payguard?

Run claude mcp add payguard -- npx -y @edycutjong/payguard, then add the server to your MCP client's configuration.

Is Payguard safe to use with an AI agent?

Its trust score is 37 out of 100 (low). Conduid hasn't run static security checks on this repository yet, so review the source yourself before granting it credentials. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Payguard still maintained?

Conduid hasn't recorded a commit date for this repository yet. Check the repository directly for recent activity.