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Kaal Agent Safety (x402 paid MCP)

Official registry Finance and payments

Paid MCP tools for URL payment-safety scanning and provider recommendations; USDC on Base via x402.

Source code Website Documentation

What can you do with Kaal Agent Safety (x402 paid MCP)?

  • safety_check(target) — $0.002 per call: flags credentials_in_url,
  • recommend(category) — $0.005 per call: ranked whitespace/cost directory

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http kaal-agent-safety-x402-paid-mcp 'https://places-wayne-experiment-facial.trycloudflare.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "kaal-agent-safety-x402-paid-mcp": {
            "type": "http",
            "url": "https://places-wayne-experiment-facial.trycloudflare.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. kaal-agent-safety — x402 paid MCP server
  2. Endpoints
  3. Connect
  4. Run
  5. Verified
  6. License

kaal-agent-safety — x402 paid MCP server

Two paid MCP tools plus three free HTTP endpoints. Buyers pay USDC on Base (per-call, x402 exact scheme, EIP-3009 transferWithAuthorization) — no API keys, no subscriptions. Free initialize + tools/list; payment only on tools/call (HTTP 402 with payment requirements).

Endpoints

EndpointMethodPriceNotes
/v1/safety/check?target=<url>GET$0.002deterministic payment-safety / phishing scan + signed receipt
/v1/recommend?category=<cat>GET$0.005ranked provider / cost-directory lookup
/mcpPOST (MCP)see belowstreamable-http MCP transport
/.well-known/mcp.jsonGETfreeMCP discovery manifest
/.well-known/x402GETfreex402 payment manifest (payTo, facilitator, prices)
/v1/verify?receipt=<id>GETfreereplayable receipt verification
/healthGETfreeliveness
MCP tools
  • safety_check(target) — $0.002 per call: flags credentials_in_url, no_hsts, ip_literal, lookalike hosts, missing /.well-known/x402 manifest; returns AVOID / CAUTION / CAUTION_NONE_DETECTED + signed receipt.
  • recommend(category) — $0.005 per call: ranked whitespace/cost directory across search, onchain-data, agent-safety, paid-discovery, tx-execution.

Connect

claude mcp add --transport http kaal-agent-safety https://<host>/mcp
# or any MCP client pointed at the streamable-http URL in server.json

Free: initialize, notifications/initialized, tools/list. Paid: tools/call requires X-PAYMENT header (base64 exact-scheme payload); server settles through an x402 facilitator and returns X-Payment-Response with the on-chain transaction.

Run

npm ci
RECEIPT_SECRET=<32-byte-hex> \
NETWORK=base FACILITATOR_URL=http://127.0.0.1:8142 \
PORT=8140 node server.js

RECEIPT_SECRET (or WALLET_FILE=<path-to-wallet-json>) signs receipts. NETWORK is base (mainnet) or base-sepolia. Settlement is non-custodial: funds go straight to the configured payTo wallet on every settlement.

Verified

  • Local E2E: unpaid 402 → EIP-3009 signed payment → verify → settle → on-chain receipt status 1.
  • Public E2E over a tunnel: paid GET /v1/safety/check settled with tx 0xd7bd01780b75d106fb3e286b6a3c55a78a6a486ee2cf439f4d2b3d8b5b1c28d7 (Base mainnet, block 53162843, gas 83208).
  • Revenue ledger + treasury sweep + systemd auto-restart are part of the production deployment.

License

MIT

Frequently asked questions

What is Kaal Agent Safety (x402 paid MCP)?

Paid MCP tools for URL payment-safety scanning and provider recommendations; USDC on Base via x402.

How do I install Kaal Agent Safety (x402 paid MCP)?

It runs as a remote server. In Claude Code: claude mcp add --transport http kaal-agent-safety-x402-paid-mcp 'https://places-wayne-experiment-facial.trycloudflare.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Kaal Agent Safety (x402 paid MCP) need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Kaal Agent Safety (x402 paid MCP) open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Kaal Agent Safety (x402 paid MCP)?

It is published by immoney1. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.