Roundhouse AI

trustscore.dev

Real-time phone number fraud detection for AI agents, LLM tool-calling, and x402-native apps. One endpoint returns trust score, risk flags, and a human-readable decision in under 200ms. Pay $0.01 USDC per call on Base, or use the free demo.

DataLiveeip155:8453Exactvia facilitator:dexter
https://trustscore.dev/api/score
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far.
$0.90
Verified settled volume
17 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xAD9009D87415E23183d07Dde07f99182905405ff

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0xAD90…405ff. The signed payment is good for 5 minutes.

Paid to
0xAD90…405ff
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "tags": [
        "trust-score",
        "phone",
        "phone-number",
        "phone-validation",
        "phone-verification",
        "fraud",
        "fraud-detection",
        "scam",
        "spam",
        "robocall",
        "voip",
        "voip-detection",
        "fake-number-detection",
        "line-type",
        "mobile-detection",
        "e164",
        "crypto",
        "token",
        "rugpull",
        "honeypot",
        "scam-token",
        "property",
        "address",
        "real-estate",
        "deed-fraud",
        "risk",
        "risk-scoring",
        "verification",
        "reputation",
        "identity",
        "api",
        "x402"
      ],
      "version": "2",
      "category": "identity",
      "keywords": [
        "trust",
        "score",
        "phone",
        "phone number",
        "fraud",
        "scam",
        "spam",
        "robocall",
        "voip",
        "crypto",
        "token",
        "rugpull",
        "honeypot",
        "scam token",
        "address",
        "property",
        "real estate",
        "deed fraud",
        "verification",
        "risk",
        "reputation",
        "identity",
        "api",
        "x402"
      ],
      "description": "Check if a phone number, crypto token, or property address is trustworthy. Returns a 0-100 trust score, confidence, risk flags, and plain-English summary. Detects phone fraud, spam, robocalls, and VoIP; crypto rugpulls, honeypots, and scam tokens; property deed fraud and shady listings. One call, three asset types."
    },
    "payTo": "0xAD9009D87415E23183d07Dde07f99182905405ff",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "resource": "https://trustscore.dev/api/score",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-09-23 22:11Z
Last indexed by Roundhouse
2026-09-24 13:15Z
Last enriched (probe, favicon, geo)
2026-09-16 17:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service trustscore.dev and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=trustscore.dev'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://trustscore.dev/api/score, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.