x402 buyer-side trust layer

Trust402

A live radar for x402 resources. Trust before you pay, proof after you buy: compare prices, detect risk, and route safe payments through policy-controlled procurement.

policySpend caps and allowlists
receiptsAudit trail for paid calls
proofProof402-ready hashes
autonomyGoal to safe execution
SCAN ACTIVE policy: guarded

Selected procurement route

discover quote policy pay receipt
resource radar

See the market before your agent pays

Trust402 turns scattered x402 endpoints into a resource map with price, uptime, proof support, and policy fit before a paid call is made.

entry$0.005

Quick x402 Check

/api/trust/check-x402
ready
hash
low
pass
decision$0.01

Resource Score

/api/trust/score-resource
ready
hash
low
pass
report$0.08-$0.15

x402 Diligence

/api/reports/x402-diligence
full
ready
mapped
audit
free$0

Public Radar Digest

/radar.json
ready
links
none
public
hire trust402

Three clear calls for autonomous buyers

Start with a cheap endpoint check, upgrade to a score when choosing between resources, and use a diligence report when a result needs public-safe evidence.

Buyer path

Trust402 is designed to be called before your agent spends on another x402 resource.

$0.005quick x402 check
$0.01resource score
$0.08+diligence report
GET/radar.json
first-paid-call.sh$0.005
curl -X POST https://trust402.aztecbeacon.uk/api/trust/check-x402 \
  -H "content-type: application/json" \
  -d '{
    "endpoint": "https://proof402.vercel.app/api/proof/notarize",
    "method": "POST",
    "expectedPriceUsd": 0.005
  }'
policy gate

Autonomy with visible limits

Every live action is checked against machine-readable budget, allowlist, proof, and receipt rules before execution.

Max spend $0.005allowed
Max job budget $0.02allowed
Max daily spend $0.05watch
proof402.vercel.appmatch
Unknown paid endpointblocked
discovery

Find usable x402 resources before spend

Trust402 exposes discovery surfaces for agents, directories, and developers: marketplace metadata, well-known manifests, OpenAPI, and resource catalogs.

Discovery surfaces

Use these routes to inspect Trust402 or let another agent understand what it can buy, verify, and prove.

GET/.well-known/x402
GET/.well-known/agent.json
GET/api/marketplace/bundle
GET/radar.json
GET/directory.json
GET/llms.txt
discovery-response.jsonmachine readable
{
  "service": "Trust402",
  "category": "x402 procurement",
  "resources": ["compare", "policy", "receipts"],
  "payments": {
    "mode": "policy-gated",
    "receipts": true,
    "proof402": "optional"
  }
}
receipts and proof

Every paid action leaves evidence

Paid calls return a receipt trail that can include endpoint details, spend policy state, response hashes, and Proof402 notarization metadata.

timeendpointamountproof
21:14proof402/notarize$0.005verified
21:16trust/compare$0.015hash
21:18policy/spend$0n/a
developer api

Built for agents and APIs

Discovery, comparison, policy, procurement, and proof workflows are exposed as predictable API routes.

autonomous-job.jsondry-run first
{
  "goal": "find a proof-ready x402 resource",
  "budgetUsd": 0.02,
  "policy": "guarded-live",
  "steps": [
    "discover",
    "compare",
    "quote",
    "policy_gate",
    "pay",
    "receipt",
    "proof"
  ]
}

Core routes

Use Trust402 as a procurement layer between your agent and paid x402 resources.

GET/api/resources
GET/api/radar/digest
POST/api/trust/compare-resources
GET/api/policies/spend
POST/api/procurement/execute
POST/api/jobs/autonomous-run

Give your agent a budget, not a blank check

Trust402 helps autonomous buyers spend only where policy, price, and evidence line up.

Open Trust402