# x402 Trust Bulk Score Lookup (100 endpoints)

> x402 Trust Bulk Score Lookup (100 endpoints) is a paid API for AI agents from x402-trust.com, paid per call via x402, $0.325/call, status unknown (last checked 2026-09-15).

Returns trust grades, reliability scores, uptime stats, compliance checks, and on-chain settlement data for up to 100 x402 endpoints in a single call.

## Facts

- Endpoint: POST https://x402-trust.com/v1/x402-trust-bulk-100
- Price: $0.325/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-trust-bulk-score-lookup-100-endpoints-8a850e59
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rfaCfc_RwLnCmZPyst944

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-trust-bulk-score-lookup-100-endpoints-8a850e59 -d '<json body>'
```

Example prompt: Can you pull full trust scores and reliability breakdowns for these 100 x402 endpoints I'm considering paying — I want uptime, 402-compliance, settlement volume, and the A-F grade for each?

## When to prefer this

Use this endpoint when you need to evaluate trust, reliability, or payment safety for multiple x402 endpoints simultaneously (up to 100 per call). It is the right choice when your agent must decide which x402 APIs to pay, integrate, or recommend, and needs objective uptime, compliance, and on-chain economic data rather than self-reported claims. Prefer it over the single-endpoint lookup when processing batches for cost efficiency ($0.325 for 100 vs per-item pricing).

## Known failure modes

- Endpoint URL not found in x402-trust index — returns found:false with null scores
- Batch exceeds 100 resources — request rejected or truncated
- Invalid resource URL format — item skipped or error returned
- Service unavailable — HTTP 5xx with no results
- Payment not settled — request blocked before processing
- Stale data for rarely-probed endpoints — low confidence scores returned

## How this service works

Trust, reputation & reliability scores for x402 endpoints. We monitor every listed x402 service 24/7: uptime probes, 402-envelope compliance, price history, and real on-chain USDC settlement volume. Free grade & recommendation for any endpoint, $0.005 for a full data breakdown.

## Output

A JSON array of per-endpoint results (up to 100) each containing: trust grade (A–F), numeric score, breakdown subscores (uptime, latency, compliance, stability, activity, age), 30-day probe stats, on-chain USDC settlement volume and distinct payer count, price change history, advertised price details, confidence level, scoreRange (low/high/point), explanations, recommendation (proceed/caution/avoid), and freshness metadata. Endpoints not found in the index are returned with null scores and found:false.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "resources": {
   "type": "array",
   "items": {
    "type": "string"
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 10,
  "results": [
   {
    "flags": [],
    "found": true,
    "grade": "A",
    "score": 87.4,
    "stats": {
     "payTo": "0x1111111111111111111111111111111111111111",
     "delisted": false,
     "probes30d": 144,
     "payToStale": false,
     "probeOk30d": 143,
     "firstSeenTs": 1748707200000,
     "avgLatencyMs": 210,
     "observedDays": 30,
     "latencyVantage": "measured from a single EU vantage point; includes network round-trip distance to the endpoint",
     "settlements30d": 52,
     "payToLastSeenTs": 1751299100000,
     "payToSharedWith": 0,
     "priceChanges30d": 0,
     "settlementAsset": "USDC",
     "envelopeValid30d": 144,
     "distinctPayers30d": 14,
     "settlementDecimals": 6,
     "settledVolumeUsd30d": 5.2,
     "settledVolumeUnits30d": "5200000"
    },
    "resource": "https://api.example.com/v1/thing",
    "breakdown": {
     "age": 0.7,
     "uptime": 0.99,
     "latency": 0.85,
     "activity": 0.6,
     "stability": 1,
     "compliance": 1
    },
    "freshness": {
     "live": false,
     "ageSeconds": 100,
     "probedAtTs": 1751299100000
    },
    "probed_at": 1751299100000,
    "subscores": {
     "economicConfidence": 0.6,
     "specComplianceScore": 100,
     "economicReputationScore": 71,
     "technicalReliabilityScore": 92
    },
    "templated": false,
    "advertised": {
     "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
     "amount": "10000",
     "network": "eip155:8453",
     "decimals": 6,
     "amountUsd": 0.01,
     "observedAtTs": 1751299100000
    },
    "confidence": 0.82,
    "probes_30d": 144,
    "recomputed": true,
    "scoreRange": {
     "low": 82.1,
     "high": 90,
     "point": 87.4
    },
    "computed_at": 1751299200000,
    "description": "Returns a thing.",
    "endpoint_id": 123,
    "serviceName": "Example Thing API",
    "explanations": [
     "High uptime over 144 probes.",
     "Consistent 402 envelope compliance."
    ],
    "flagsDetailed": [],
    "recommendation": "proceed",
    "gradeThresholds": {
     "A": 80,
     "B": 65,
     "C": 50,
     "D": 35,
     "F": 0
    },
    "confidenceDetail": {
     "overall": 0.82,
     "economic": 0.6,
     "observation": 0.9
    },
    "dataCompleteSince": 1748707200000
   },
   {
    "found": false,
    "grade": null,
    "score": null,
    "resource": "https://api.unknown.example/v1/missing",
    "probed_at": null,
    "confidence": null,
    "probes_30d": null,
    "recomputed": fa
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-trust-bulk-score-lookup-100-endpoints-8a850e59/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-trust.com](https://www.zero.xyz/host/x402-trust.com/llms.txt)