Prove the paid route before asking agents to buy.

Recommended seller move

• Inspect /x402-proof to see the completed payment proof pattern.
• Open /buyer-agent-challenge to copy the buyer-agent test shape.
• Use /api/opportunity-check first if you only need the cheapest paid flow test.
• Use /api/agent-revenue-audit only when you want monetization guidance for your own API, agent, or tool.
• Do not widen distribution until the public route, 402 response, paid retry, and privacy posture are clear.

Guardrails

• Inbound-only.
• No automated outreach.
• No scraping or scanning.
• No third-party endpoint inspection.
• No paid upstream calls.
• No buyer-level public data.
• Base mainnet x402 remains the proven production rail.

Fast links

/x402-proof

/buyer-agent-challenge

/api/x402-seller-readiness

/agent-revenue-audit

Machine-readable readiness

{
  "name": "ApexScout x402 Seller Readiness",
  "version": "v2.2.81-brand-asset-integration",
  "purpose": "Help x402 API sellers prove their paid service is understandable, testable, privacy-safe, and buyer-agent ready before they ask buyers to pay.",
  "canonicalUrl": "https://apexscout.ai/x402-seller-readiness",
  "mode": "inbound-only-seller-readiness",
  "audience": [
    "x402 API sellers",
    "agent-tool builders",
    "AI service operators",
    "API founders packaging a pay-per-call route"
  ],
  "positioning": "ApexScout is the proof and checkup layer for x402 services that want buyer agents to trust the route before spending.",
  "whyNow": [
    "x402 discovery and marketplace surfaces reward clear metadata, real paid proof, and buyer-ready routes.",
    "Buyer agents need a short path from docs to unpaid 402 to paid JSON.",
    "Privacy-safe public metrics matter because payment metadata and prompts can become sensitive.",
    "ApexScout already proved its own $0.01 x402 route end to end on Base mainnet."
  ],
  "readinessChecklist": [
    {
      "check": "Machine-readable 402",
      "whyItMatters": "Buyer agents need parseable payment requirements before deciding to spend.",
      "apexScoutStatus": "passed"
    },
    {
      "check": "Cheapest useful first route",
      "whyItMatters": "A $0.01 first call lowers buyer friction without forcing a subscription.",
      "apexScoutStatus": "passed"
    },
    {
      "check": "Paid 200 JSON proof",
      "whyItMatters": "A seller should prove the route returns useful JSON after verify and settle.",
      "apexScoutStatus": "passed"
    },
    {
      "check": "Buyer-agent copy-paste path",
      "whyItMatters": "Agents need exact method, URL, payload, max spend, and expected statuses.",
      "apexScoutStatus": "passed"
    },
    {
      "check": "Aggregate-only public metrics",
      "whyItMatters": "Public dashboards should not expose buyer prompts, wallets, feedback text, or paid responses.",
      "apexScoutStatus": "passed"
    },
    {
      "check": "No paid upstream dependency",
      "whyItMatters": "A seller should not accidentally spend money upstream while handling a buyer request.",
      "apexScoutStatus": "passed"
    }
  ],
  "apexScoutProof": {
    "firstPaidRoute": "/api/opportunity-check",
    "firstPaidPrice": "$0.01",
    "firstPaidMaxAmountAtomicUnits": "10000",
    "expectedUnpaidStatus": 402,
    "expectedPaidStatus": 200,
    "proofUrl": "https://apexscout.ai/x402-proof",
    "proofApiUrl": "https://apexscout.ai/api/x402-proof",
    "buyerAgentChallengeUrl": "https://apexscout.ai/buyer-agent-challenge",
    "cashRegisterUrl": "https://apexscout.ai/api/cash-register"
  },
  "howApexScoutCanHelpSellers": [
    {
      "route": "/api/opportunity-check",
      "price": "$0.01",
      "use": "Cheapest buyer-agent payment-flow proof and route-fit screen."
    },
    {
      "route": "/api/agent-revenue-audit",
      "price": "$5.00",
      "use": "Higher-value monetization diagnosis for a seller's own agent, API, or tool."
    }
  ],
  "recommendedSellerMove": [
    "Inspect /x402-proof to see the completed payment proof pattern.",
    "Open /buyer-agent-challenge to copy the buyer-agent test shape.",
    "Use /api/opportunity-check first if you only need the cheapest paid flow test.",
    "Use /api/agent-revenue-audit only when you want monetization guidance for your own API, agent, or tool.",
    "Do not widen distribution until the public route, 402 response, paid retry, and privacy posture are clear."
  ],
  "healthyRisk": {
    "name": "x402 seller readiness angle",
    "riskLevel": "small",
    "action": "Position ApexScout as the inbound readiness check for x402 sellers, then submit one manual ecosystem/listing packet using the proof URL.",
    "notAllowed": [
      "No automated outreach.",
      "No scraping.",
      "No third-party endpoint inspection.",
      "No paid calls in this pass.",
      "No fake traffic.",
      "No fake feedback.",
      "No payment rail switch."
    ]
  },
  "privacy": {
    "publicMetrics": "aggregate-only",
    "buyerPromptsPublic": false,
    "walletHistoriesPublic": false,
    "paidResponsesPublic": false,
    "rawFeedbackPublic": false
  },
  "links": {
    "sellerReadiness": "https://apexscout.ai/x402-seller-readiness",
    "sellerReadinessApi": "https://apexscout.ai/api/x402-seller-readiness",
    "x402Proof": "https://apexscout.ai/x402-proof",
    "buyerAgentChallenge": "https://apexscout.ai/buyer-agent-challenge",
    "publicAgent": "https://apexscout.ai/public-agent",
    "docsJson": "https://apexscout.ai/docs.json",
    "cashRegister": "https://apexscout.ai/api/cash-register",
    "agentRevenueAudit": "https://apexscout.ai/agent-revenue-audit"
  },
  "guardrails": [
    "Inbound-only.",
    "No automated outreach.",
    "No scraping or scanning.",
    "No third-party endpoint inspection.",
    "No paid upstream calls.",
    "No buyer-level public data.",
    "Base mainnet x402 remains the proven production rail."
  ]
}