x402 Buyer Conversion and Wallet Safety Router
Copy-paste routing pack for agents, wallets, MCP tools, Flowise builders, and x402 sellers that need to turn a live HTTP 402 quote into a safe first purchase, receipt evidence, and a useful paid JSON result.
Start Here
- Agent, wallet, or MCP buyer moving from quote probes to a real first payment: open the Agent Payment Safety Control Plane, then run the GitHub safety-control-plane example to verify route, spend cap, payTo, network, and expected receipt fields without paying.
- Buyer that needs the broader discovery and checkout map: open the Agent Payment Control Plane, then run the GitHub control-plane example to inspect route selection and quote policy without paying.
- Agent or MCP client that needs a local payment allowlist before spending: open the Agent Payment Policy Manifest, then run the GitHub policy checker to verify live 402 amount, asset, network, and payTo without paying.
- Content site, docs site, API publisher, or MCP service monetizing AI crawler traffic: open the AI Crawler Monetization Kit, then run the GitHub crawler-monetization example to generate protected route tiers, x402 discovery copy, robots.txt, llms.txt, and an edge-worker checklist.
- Buyer unsure which x402 route to buy first: open the First Purchase Router, then run the GitHub first-purchase-router example to verify live amount, network, and payTo without paying.
- Agent or wallet buyer evaluating paid x402 endpoints: open the Buyer Conversion Suite first, then use the GitHub buyer-conversion example pack to choose the safest first paid URL without paying.
- Agent payment integrator: open the Agent Commerce Suite, load the Buyer Payment Policy Pack, then decode the first quote with the GitHub example pack or the AgentCore/MCP buyer quickstart.
- About to pay or sign: use the wallet signing risk kit first.
- About to revoke, approve, or move treasury funds: use the approval risk auditor.
- Selling an x402 or paid MCP API: use the merchant readiness page, quote the $0.006 seller mini-check first, then buy the growth plan or seller intelligence when you need the deeper report.
- Directory or marketplace reviewer: open the merchant-readiness brief for copy-paste listing text and live quote steps.
Live Links
- Agent Payment Control Plane: https://gpt55.558686.xyz/x402/agent-payment-control-plane
- Agent Payment Control Plane JSON: https://gpt55.558686.xyz/x402/agent-payment-control-plane.json
- Agent Payment Control Plane Pages brief: https://go165.github.io/gpt55-x402-gateway/agent-payment-control-plane.html
- Agent Payment Control Plane examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agent-payment-control-plane
- Agent Payment Safety Control Plane: https://gpt55.558686.xyz/x402/agent-payment-safety-control-plane
- Agent Payment Safety Control Plane JSON: https://gpt55.558686.xyz/x402/agent-payment-safety-control-plane.json
- Agent Payment Safety Control Plane Pages brief: https://go165.github.io/gpt55-x402-gateway/agent-payment-safety-control-plane.html
- Agent Payment Safety Control Plane examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agent-payment-safety-control-plane
- Agent Payment Policy Manifest: https://gpt55.558686.xyz/x402/agent-payment-policy-manifest
- Agent Payment Policy Manifest JSON: https://gpt55.558686.xyz/x402/agent-payment-policy-manifest.json
- Agent Payment Policy Manifest Pages brief: https://go165.github.io/gpt55-x402-gateway/agent-payment-policy-manifest.html
- Agent Payment Policy Manifest examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agent-payment-policy-manifest
- AI Crawler Monetization Kit: https://gpt55.558686.xyz/x402/ai-crawler-monetization-kit
- AI Crawler Monetization Kit JSON: https://gpt55.558686.xyz/x402/ai-crawler-monetization-kit.json
- AI Crawler Monetization Kit Pages brief: https://go165.github.io/gpt55-x402-gateway/ai-crawler-monetization-kit.html
- AI Crawler Monetization Kit examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/ai-crawler-monetization-kit
- First Purchase Router: https://gpt55.558686.xyz/x402/first-purchase-router
- First Purchase Router JSON: https://gpt55.558686.xyz/x402/first-purchase-router.json
- First Purchase Router Pages brief: https://go165.github.io/gpt55-x402-gateway/first-purchase-router.html
- First Purchase Router examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/first-purchase-router
- Buyer Conversion Suite: https://gpt55.558686.xyz/x402/buyer-conversion-suite
- Buyer Conversion Suite JSON: https://gpt55.558686.xyz/x402/buyer-conversion-suite.json
- Buyer Conversion Suite examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/buyer-conversion-suite
- Agent Payment Readiness Lab: https://gpt55.558686.xyz/x402/agent-payment-readiness-lab
- Agent Payment Readiness Lab JSON: https://gpt55.558686.xyz/x402/agent-payment-readiness-lab.json
- Agent Payment Readiness examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agent-payment-readiness-lab
- Agent Payment Readiness Pages brief: https://go165.github.io/gpt55-x402-gateway/agent-payment-readiness.html
- Wallet and Prepay First Purchase Center: https://gpt55.558686.xyz/x402/wallet-prepay-first-purchase
- Wallet and Prepay First Purchase JSON: https://gpt55.558686.xyz/x402/wallet-prepay-first-purchase.json
- Wallet and Prepay First Purchase examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/wallet-prepay-first-purchase
- Wallet and Prepay First Purchase Pages brief: https://go165.github.io/gpt55-x402-gateway/wallet-prepay-first-purchase.html
- Agent Checkout Kit: https://gpt55.558686.xyz/x402/agent-checkout-kit
- Agent Checkout Kit JSON: https://gpt55.558686.xyz/x402/agent-checkout-kit.json
- x402 First Payment Client examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/x402-first-payment-client
- x402 First Payment Client Pages brief: https://go165.github.io/gpt55-x402-gateway/x402-first-payment-client.html
- MCP First Purchase Kit: https://gpt55.558686.xyz/x402/mcp-first-purchase-kit
- MCP First Purchase Kit JSON: https://gpt55.558686.xyz/x402/mcp-first-purchase-kit.json
- MCP First Purchase examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/mcp-first-purchase-kit
- Agent Commerce Suite: https://gpt55.558686.xyz/x402/agent-commerce-suite
- Agent Commerce Suite JSON: https://gpt55.558686.xyz/x402/agent-commerce-suite.json
- Buyer Payment Policy Pack: https://gpt55.558686.xyz/x402/buyer-payment-policy-pack
- Buyer Payment Policy JSON: https://gpt55.558686.xyz/x402/buyer-payment-policy-pack.json
- Buyer Payment Policy example: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/buyer-payment-policy-pack
- Agent Commerce Suite examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agent-commerce-suite
- AgentCore/MCP buyer quickstart: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/agentcore-mcp-buyer-quickstart
- Public kit: https://gpt55.558686.xyz/x402/wallet-signing-risk-kit
- Example pack JSON: https://gpt55.558686.xyz/x402/wallet-signing-risk-kit/example-pack.json
- Example pack Markdown: https://gpt55.558686.xyz/x402/wallet-signing-risk-kit/example-pack.md
- MCP router TypeScript: https://gpt55.558686.xyz/x402/wallet-signing-risk-kit/mcp-wallet-safety-router.ts
- GitHub examples: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/wallet-signing-risk-kit
- GitHub release: https://github.com/go165/gpt55-x402-gateway/releases/tag/v2026.06.18-wallet-safety-router
- Buyer safety guide: https://github.com/go165/gpt55-x402-gateway/blob/main/BUYER_SAFETY.md
- Live x402 status: https://gpt55.558686.xyz/x402/status
- Merchant-readiness brief: https://go165.github.io/gpt55-x402-gateway/merchant-readiness.html
- Live merchant-readiness page: https://gpt55.558686.xyz/x402/merchant-readiness
- First paid seller mini-check: https://gpt55.558686.xyz/v1/paid/x402-seller-mini-check
- Seller mini-check example pack: https://github.com/go165/gpt55-x402-gateway/tree/main/examples/seller-mini-check
- Seller growth checklist: https://gpt55.558686.xyz/v1/paid/x402-growth-plan
- Full seller-intelligence bundle: https://gpt55.558686.xyz/v1/paid/x402-seller-intel
- Default x402 facilitator: https://facilitator.openx402.ai
Live Quote and Chain Verification
- Fetch the target endpoint without a payment header before paying.
- Use the HTTP
402 payment-required header as the live quote for amount, network, asset, and payTo.
- Settlement address:
0x1f0130669ca6fd02e025a984cc038f139df19a2f on Base USDC.
- If a status summary is stale or missing log history, verify settlement with Base USDC
Transfer events to the settlement address.
Live Quote and Chain Verification
- Fetch the target endpoint without a payment header before paying.
- Use the HTTP
402 payment-required header as the live quote for amount, network, asset, and payTo.
- Settlement address:
0x1f0130669ca6fd02e025a984cc038f139df19a2f on Base USDC.
- If a status summary is stale or missing log history, verify settlement with Base USDC
Transfer events to the settlement address.
What It Routes
- Before payment: use the x402 prepay trust check.
- Before calldata signing: use the EVM transaction risk decoder.
- Before typed-data signing: use the EIP-712 signature risk decoder.
- Before revoke or treasury actions: use the approval risk auditor.
Quote-Only Checks
ROUTE_ID=wallet-signing-safety-pack MAX_USDC=0.02 node examples/x402-first-payment-client/first-payment-client.mjs
ROUTE_ID=mcp-integration-kit node examples/x402-first-payment-client/first-payment-client.mjs
curl -i "https://gpt55.558686.xyz/v1/tools/x402-prepay-trust-check?url=https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Fx402-ping&method=GET&expected_network=eip155%3A8453&expected_asset=USDC&max_price_usd=0.01"
curl -i "https://gpt55.558686.xyz/v1/paid/eip712-signature-risk-decoder?typed_data=%7B%22domain%22%3A%7B%22chainId%22%3A8453%7D%2C%22primaryType%22%3A%22Permit%22%2C%22message%22%3A%7B%22spender%22%3A%220x1111111111111111111111111111111111111111%22%7D%2C%22types%22%3A%7B%22Permit%22%3A%5B%7B%22name%22%3A%22spender%22%2C%22type%22%3A%22address%22%7D%5D%7D%7D&chain=base"
Buyer Checklist
- Quote without X-PAYMENT first.
- Compare amount, network, asset, and payTo before paying.
- Do not send private keys or seed phrases.
- Do not treat calldata risk and typed-data risk as interchangeable.