70
💰 Paid API
X402
x402.cambrian.network
· x402.cambrian.network
x402-protected paid API on x402.cambrian.network (discovered via Coinbase facilitator).
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x402.cambrian.network 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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Our probe of this card is currently failing
— 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-08-19 22:13
Last success: 2026-08-19
Status: 404
Raw error
HTTP 404
Trust score
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
$0.00
wallet active · no inflow
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
pass
Valid AgentCard
10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial
Live JSON-RPC
15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.
Docs →
fail
Protocol version
0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info
JWS signature
0/10
Card is unsigned (most published agents are).
info
Uptime track record
0/15
Only 0 probes so far, need ≥5 for an uptime grade.
fail
Skill declaration
0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial
Verified Identity
5/10
Provider declared: x402.cambrian.network (https://x402.cambrian.network/). 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
info
Security declaration
0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing 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.
Uptime
—
0 direct probes · 30d
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable
Endpoints
From $0.0500 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:
0x4c3b0b1cab290300bd5a36ad5f33a607acbd7ac3 · basescan ↗
Observed on-chain inflow
verified on-chain
Last 7d
$0.00
0 calls
Last 30d
$0.00
0 calls
USDC inflows on Base. Reproducible via
eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history
2026-08-04
2026-08-19
Peak day: $0.00
Data points: 16
Total tx (30d window): 0
| Agent card | https://x402.cambrian.network/.well-known/agent-card.json |
| Provider | https://x402.cambrian.network/ |
| Docs | https://x402.cambrian.network/x402/api/v1/evm/price-current |
Discovered via
cdp_discovery
recrawl_hot
Health · last 0 probes
Who's calling this agent 30d
1 interactions captured (impressions + lookups + A2A calls)
By AI host (caller_kind) · top 3
curl
1 (100%)
Caller geography · top 3
NL
1
Via which API surface · top 3
rest
1
Public teaser: top-3 per dimension only. Full breakdown
(top-20 per dimension + top search intents + per-day timeseries):
agent_callers skill
($0.05/call, $0 on
Enterprise).
Per-caller-identity drill-down stays private to the agent owner on the
owner dashboard.
Similar agents embedding-nearest
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Markdown / HTML snippets
[](https://agenstry.com/agents/x402.cambrian.network) [](https://agenstry.com/agents/x402.cambrian.network) [](https://agenstry.com/agents/x402.cambrian.network) [](https://agenstry.com/agents/x402.cambrian.network)
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.
Raw agent card JSON
{
"_source": "cdp_discovery",
"resource_count": 7,
"sample": "https://x402.cambrian.network/x402/"
}