Merchant Portal

Sell premium machine-readable intelligence to agents over an x402-style payment flow.

AgentVault Data Market exposes high-signal vendor, risk, and budget endpoints for autonomous agents. Buyers request a resource, receive a structured payment challenge, then retry with proof and receive a machine-readable receipt.

Try Live Playground Open API Catalog
Resources
3
Settlement Rail
x402
Network
Monad
Pricing Model
Exact
MerchantAgentVault Data Market Ltd.
Hangzhou / Remote
Payout Address0xcE196a0c9969C5B2620B91b0c2136Bca2738C059
Settlementeip155:10143
0x534b2f3A21130d7a60830c2Df862319e593943A3
Supportmerchant@agentvault.dev
Facilitator: https://x402-facilitator.molandak.org
1. RequestAgent asks for a premium resource in task context.
2. ChallengeMerchant returns exact price, nonce, expiry, and payout destination.
3. PayBuyer wallet or MCP tool settles and assembles proof.
4. DeliverMerchant validates the envelope and returns data plus structured receipt.

Products

Designed for agent-native workflows: vendor gating, spend controls, and fast pre-trade risk checks.

risk

Vendor Risk Check

Return a simple vendor trust score for an address.

0.001 USDC
GET /api/premium/vendor-risk?lang=en
Open Endpoint View Details
directory

Verified Vendor Feed

List vendors safe for small autonomous agent payments.

0.0005 USDC
GET /api/premium/verified-vendors?lang=en
Open Endpoint View Details
reporting

Agent Budget Report

Return a mock spend summary for a task or agent.

0.002 USDC
GET /api/premium/agent-budget-report?lang=en
Open Endpoint View Details

Merchant Trust Profile

Everything an agent or buyer needs to understand before allowing autonomous spend.

  • Replay-protected challenge flow
  • Per-resource exact pricing
  • Short-lived challenges
  • Structured receipts for every paid response
{
  "legal_name": "AgentVault Data Market Ltd.",
  "brand_name": "AgentVault Data Market",
  "slug": "agentvault-data-market",
  "category": "Machine-payable risk, vendor, and budget intelligence",
  "region": "Hangzhou / Remote",
  "launched_at": "2026-04-12",
  "support_email": "merchant@agentvault.dev",
  "payout_address": "0xcE196a0c9969C5B2620B91b0c2136Bca2738C059",
  "settlement_network": "eip155:10143",
  "settlement_currency": "0x534b2f3A21130d7a60830c2Df862319e593943A3",
  "verification_mode": "demo-proof-envelope",
  "trust_signals": [
    "Replay-protected challenge flow",
    "Per-resource exact pricing",
    "Short-lived challenges",
    "Structured receipts for every paid response"
  ]
}

Recent Receipts

Receipts appear here after successful paid requests.

No paid requests yetWaiting
Use the playground below to generate your first receipt.

Developer Flow

A buyer-side agent can complete this flow without any browser interaction.

GET /api/premium/vendor-risk?address=0x1234&lang=en
→ 402 Payment Required
→ challenge_id + nonce + amount + currency + pay_to

Retry with:
x-payment-proof: {"challenge_id":"challenge-id-from-402","resource":"vendor-risk","payer":"0xYourAgentWalletAddress","tx_hash":"0xYourMonadTxHash","amount":"1000","currency":"0x534b2f3A21130d7a60830c2Df862319e593943A3","nonce":"challenge-nonce"}

→ 200 OK
→ data payload + receipt

Challenge Shape

Short-lived, per-resource, replay-protected challenge payload.

{
  "status": 402,
  "error": "payment_required",
  "message": "Payment Required",
  "seller": "AgentVault Data Market",
  "locale": "en",
  "resource": {
    "id": "vendor-risk",
    "title": "Vendor Risk Check",
    "description": "Return a simple vendor trust score for an address.",
    "price_display": "0.001 USDC"
  },
  "payment_required": {
    "scheme": "exact",
    "network": "eip155:10143",
    "pay_to": "0xcE196a0c9969C5B2620B91b0c2136Bca2738C059",
    "amount": "1000",
    "currency": "0x534b2f3A21130d7a60830c2Df862319e593943A3",
    "facilitator": "https://x402-facilitator.molandak.org",
    "challenge_id": "cdb5c6af-92f3-4c15-80b0-eb674c0783c7",
    "nonce": "075f18a0dedc405cca51802e",
    "expires_at": "2026-04-12T13:12:30.269Z"
  },
  "instructions": {
    "text": "Sign a payment challenge and include the proof in the x-payment-proof header.",
    "header": "x-payment-proof",
    "demo_format": {
      "challenge_id": "cdb5c6af-92f3-4c15-80b0-eb674c0783c7",
      "resource": "vendor-risk",
      "payer": "0xYourAgentWalletAddress",
      "tx_hash": "0xYourMonadTxHash",
      "amount": "1000",
      "currency": "0x534b2f3A21130d7a60830c2Df862319e593943A3",
      "nonce": "075f18a0dedc405cca51802e"
    }
  }
}

Interactive Playground

Simulate an agent requesting a paid resource, receiving a challenge, then retrying with proof.

Console

Raw response stream for challenge and paid delivery.

Ready.