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📊 Intel view 📋 Audit JSON 🔄 Changelog
22
💰 Paid API

Chaincost-X402-Production

chaincost-x402-production.up.railway.app · chaincost-x402-production.up.railway.app

Wallet holdings & risk profile: real ERC-20 balances per chain from public Blockscout indexes, USD values from explorer rates, DEX liquidity checks on the largest holdings, concentration, and an overall risk level. Covers Ethereum, Base, Arbitrum, Optimism and Polygon.

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Verify the domain chaincost-x402-production.up.railway.app via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
22/100
grade F · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Listing drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 22/100
Catalogue listing, not an A2A agent: a paid API listed by ultravioleta_discovery. Scored on the 3 criteria that apply (9 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown ▾ click to collapse breakdown ▴
n/a Agent card n/a
Not applicable: a paid API listed by ultravioleta_discovery. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
fail Live endpoint 0/25
No response from the host observed: listed by ultravioleta_discovery only, not confirmed by our own probe.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our probes looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: chaincost-x402-production.up.railway.app (https://chaincost-x402-production.up.railway.app/). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
n/a Security declaration n/a
Not applicable: no A2A agent card served.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Listing history

1 snapshot Every change to the catalogue entry
Captured Hash
2026-10-06 05:12:48 current b903f1b56e90… view →
Uptime
not graded
catalogue listing · no agent card to probe
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0010 per call
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x3893efb327fd381e85d70c29021b7a1901221fd2 on Base · basescan ↗
Listed by facilitators UltravioletaDAO · 6
UltravioletaDAO health check: 6 alive · checked 2026-10-04 (their probe)
Agent cardhttps://chaincost-x402-production.up.railway.app/
Providerhttps://chaincost-x402-production.up.railway.app/
Docshttps://chaincost-x402-production.up.railway.app/v1/portfolio-risk
Discovered via
ultravioleta_discovery

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Agenstry grade Uptime
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[![Verified Business](https://agenstry.com/badge/chaincost-x402-production.up.railway.app/identity.svg)](https://agenstry.com/agents/chaincost-x402-production.up.railway.app)
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Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "ultravioleta_discovery",
  "resource_count": 6,
  "sample": "https://chaincost-x402-production.up.railway.app/v1/portfolio-risk"
}