These are observations, not accusations. A band of LOW, MEDIUM or HIGH describes how much of what we check we were able to confirm — it is not a judgement about the operator of an endpoint. Every signal, its weight and its rationale are published on the methodology page, and any operator can claim an endpoint, correct a fact or opt out.
What does this x402 endpoint charge?
0.050000 USDC per request
https://whale.lonestaroracle.xyz/whales
Risk band: LOW
96/100
WIRE_FORMS_DISAGREEBoth wire forms were served and they describe different terms.
Endpoint
| URL | https://whale.lonestaroracle.xyz/whales |
|---|---|
| Canonical | https://whale.lonestaroracle.xyz/whales |
| Endpoint id | 45f6f4eb69760ba7a7a348026474a4a9 |
| HTTP status | 402 |
| Latency | 228 ms |
| Redirects | 0 |
| TLS | handshake okThe negotiated TLS version is not exposed to a Worker. |
| Wire form | both the v2 header and a v1 body |
| Bytes read | 785 |
| Strict decoder | accepteddecodePaymentRequired, imported from tx402 — the same code the SDK runs before it pays. |
Payment
accepted by the decoderThese terms were accepted by the strict decoder tx402 uses before it pays.
| Price | 0.050000 USDC |
|---|---|
| Amount (atomic) | 50000 |
| Scheme | exact |
| Network | eip155:8453 in manifestRecognized means present in the tx402 signed release manifest. Nothing more is claimed. |
| Asset | USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 in manifestRecognized means present in the tx402 signed release manifest. Nothing more is claimed. |
| Pay to | 0x52Ab53912D37759B2ad364f22dD06B16714b6C06 |
| Pay to declared dynamic | nox402 v2 has no on-the-wire declaration of a dynamic payTo, so this is usually unobservable. |
| Authorization window | 300s |
| Resource | https://whale.lonestaroracle.xyz/whales |
| MIME type | not observed |
| Description | Large on-chain transaction monitor — whale movements on Base, Ethereum, and Robinhood Chain with AI pattern analysis |
| Facilitator | not observed |
This endpoint offers 2 ways to pay. The card above describes the first, which is the order the server stated its own preference in.
| Alternative 2 | 50000 (atomic units) · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact |
|---|
Risk
Band: LOW 96/100 · v1 · static_onlyA band describes how much of what we check we were able to confirm. It is not a judgement about the operator of an endpoint.
- Result: pass 25 The challenge decodes under the strict x402 decoder tx402 uses before paying. challenge_decodes
- Result: pass 15 The challenge describes the endpoint that served it. resource_origin_match
- Result: pass 12 The amount is a canonical atomic integer. amount_canonical
- Result: pass 12 The recipient is a well-formed address for the declared network. pay_to_wellformed
- Result: pass 8 The network is in the tx402 signed release manifest. network_recognized
- Result: pass 8 The asset is in the tx402 signed release manifest for this network. asset_recognized
- Result: skip — The challenge named no facilitator. facilitator_known
- Result: pass 6 The payment scheme is one tx402 can route. scheme_known
- Result: pass 5 The endpoint was reached over a valid TLS connection. tls_ok
- Result: warn 4 The authorization window is outside the maximum tx402 will sign for. timeout_sane
- Result: pass 3 No redirect downgraded the connection. redirect_scheme_downgrade
- Result: pass 3 The endpoint serves the x402 v2 header form. wire_form
- Result: pass 2 The amount is within the range we see for x402 endpoints. amount_magnitude_band
Security
1 to look at
A check that could not run reports skip, and a skip is never counted as a pass.
- Result: pass wire_form_detected Served as both.
- Result: pass base64_strict The strict decoder accepted the header's base64 framing.
- Result: pass json_wellformed
- Result: pass x402_version_known Declared x402Version 2.
- Result: pass accepts_present The challenge offers 2 ways to pay.
- Result: pass size_within_limit Read 785 bytes, within the probe's cap.
- Result: pass network_caip2_wellformed network: eip155:8453
- Result: pass network_recognized Recognized means present in the tx402 signed release manifest.
- Result: pass asset_recognized Recognized means present in the tx402 signed release manifest.
- Result: pass amount_atomic_canonical
- Result: pass amount_positive
- Result: pass pay_to_wellformed
- Result: warn max_timeout_sane Authorization window 300s exceeds the tx402 maximum of 60s.
- Result: pass resource_origin_match
- Result: pass scheme_known
- Result: skip facilitator_known The challenge named no facilitator.
- Result: skip mime_type_wellformed No mimeType was declared.
- Result: pass extra_wellformed `extra` carries 2 field(s), preserved verbatim.
- Result: skip amount_within_observed_range needs our data No prior observations of this endpoint.
- Result: skip recipient_matches_observed needs our data No prior observations of this endpoint.
Observed
| First seen | 2026-08-15T04:00:12Z |
|---|---|
| Last seen | 2026-08-15T14:34:05Z |
| Scans recorded | 2 |
| Availability (30d) | not measured yet |
| Latency p50 | not measured yet |
| 2026-08-15T05:46:03Z | first_seen: challenge_hash — → 9527eef2706ac29d00094eefbad19571ae556ca4fbed8f39fc767a56f14889c2 |
|---|
Test with tx402 →
Pre-filled with this endpoint's real terms. Your signer stays in your process — this service never sees a key, never asks for one, and cannot build a payment.
CLI — dry run, nothing is signed
npx tx402 call "https://whale.lonestaroracle.xyz/whales" \
--max-spend "0.050000 USDC" \
--network "eip155:8453" \
--dry-run
# --dry-run stops after the policy decision. Nothing is signed and nothing is spent.
TypeScript
import { createTx402Client } from "tx402";
// Your signer stays in your process. tools.tx402.io never sees a key,
// never asks for one, and cannot build a payment.
import { signers } from "./signers.js";
const tx402 = createTx402Client({
signers,
policy: {
maxPerRequest: "0.050000 USDC",
allowedDomains: ["whale.lonestaroracle.xyz"],
allowedNetworks: ["eip155:8453"],
},
});
// Policy and budget are committed before the signer is reachable, so a
// refusal here is a payment that was never authorized.
const response = await tx402.fetch("https://whale.lonestaroracle.xyz/whales");
Python
from tx402 import Tx402Client, Policy
# Your signer stays in your process. tools.tx402.io never sees a key,
# never asks for one, and cannot build a payment.
tx402 = Tx402Client(
evm_signer=evm,
policy=Policy(
max_per_request="0.050000 USDC",
allowed_domains=["whale.lonestaroracle.xyz"],
allowed_networks=["eip155:8453"],
),
)
# Policy and budget are committed before the signer is reachable, so a
# refusal here is a payment that was never authorized.
response = tx402.fetch("https://whale.lonestaroracle.xyz/whales")
This report, as JSON or Markdown
curl -sS 'https://tools.tx402.io/api/v1/inspect?url=https%3A%2F%2Fwhale.lonestaroracle.xyz%2Fwhales'
# The same result as Markdown, for a terminal or an agent:
curl -sS -H 'Accept: text/markdown' 'https://tools.tx402.io/inspect?url=https%3A%2F%2Fwhale.lonestaroracle.xyz%2Fwhales'
The challenge, as served
Public data: the endpoint serves this to anyone who asks. It is shown exactly as it arrived, truncated to the documented cap.
raw challenge
eyJ4NDAyVmVyc2lvbiI6IDIsICJlcnJvciI6ICJQYXltZW50IHJlcXVpcmVkIiwgInJlc291cmNlIjogeyJ1cmwiOiAiaHR0cHM6Ly93aGFsZS5sb25lc3Rhcm9yYWNsZS54eXovd2hhbGVzIiwgImRlc2NyaXB0aW9uIjogIkxhcmdlIG9uLWNoYWluIHRyYW5zYWN0aW9uIG1vbml0b3IgXHUyMDE0IHdoYWxlIG1vdmVtZW50cyBvbiBCYXNlLCBFdGhlcmV1bSwgYW5kIFJvYmluaG9vZCBDaGFpbiB3aXRoIEFJIHBhdHRlcm4gYW5hbHlzaXMiLCAibWltZVR5cGUiOiAiIiwgInNlcnZpY2VOYW1lIjogIldoYWxlQWxlcnQiLCAidGFncyI6IFsid2hhbGUiLCAib24tY2hhaW4iLCAidHJhbnNhY3Rpb25zIiwgImJhc2UiLCAiZXRoZXJldW0iXSwgImljb25VcmwiOiAiaHR0cHM6Ly9sb25lc3Rhcm9yYWNsZS54eXovbHNvX2xvZ28uc3ZnIn0sICJhY2NlcHRzIjogW3sic2NoZW1lIjogImV4YWN0IiwgIm5ldHdvcmsiOiAiZWlwMTU1Ojg0NTMiLCAiYXNzZXQiOiAiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwgImFtb3VudCI6ICI1MDAwMCIsICJwYXlUbyI6ICIweDUyQWI1MzkxMkQzNzc1OUIyYWQzNjRmMjJkRDA2QjE2NzE0YjZDMDYiLCAibWF4VGltZW91dFNlY29uZHMiOiAzMDAsICJleHRyYSI6IHsibmFtZSI6ICJVU0QgQ29pbiIsICJ2ZXJzaW9uIjogIjIifX0sIHsic2NoZW1lIjogImV4YWN0IiwgIm5ldHdvcmsiOiAic29sYW5hOjVleWt0NFVzRnY4UDhOSmRUUkVwWTF2enFLcVpLdmRwIiwgImFzc2V0IjogIkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwgImFtb3VudCI6ICI1MDAwMCIsICJwYXlUbyI6ICIzbm1lVmo1bTlVcTJoU1Rmc1ZzbjN0Sk1IUkpRTk1LUjFBanp5VUpiclNndyIsICJtYXhUaW1lb3V0U2Vjb25kcyI6IDMwMCwgImV4dHJhIjogeyJmZWVQYXllciI6ICJCRU5yTG9VYm5keG9OTVVTNUpYQXBHTXROeWtMakZYWGl4TXRwRHdEUjlTUCJ9fV0sICJleHRlbnNpb25zIjogeyJiY19rZzY0YmQxOCI6IHt9LCAiYmF6YWFyIjogeyJzY2hlbWEiOiB7Im5hbWUiOiAiV2hhbGVBbGVydCBcdTIwMTQgTGFyZ2UgVHJhbnNhY3Rpb24gTW9uaXRvciIsICJkZXNjcmlwdGlvbiI6ICJSZWFsLXRpbWUgbGFyZ2Ugb24tY2hhaW4gdHJhbnNhY3Rpb24gbW9uaXRvcmluZyBmb3IgQmFzZSwgRXRoZXJldW0sIGFuZCBSb2Jpbmhvb2QgQ2hhaW4uIFRyYWNrcyB0b2tlbiB0cmFuc2ZlcnMgYW5kIG5hdGl2ZSBFVEggbW92ZXMgYWJvdmUgeW91ciBVU0QgdGhyZXNob2xkLiBOYW1lZCB3YWxsZXQgbGFiZWxzLCBleHBsb3JlciBsaW5rcywgYW5kIEFJIHBhdHRlcm4gYW5hbHlzaXMuIiwgImNhdGVnb3J5IjogImRhdGEiLCAidGFncyI6IFsid2hhbGUiLCAib24tY2hhaW4iLCAidHJhbnNhY3Rpb25zIiwgImJhc2UiLCAiZXRoZXJldW0iLCAicm9iaW5ob29kIiwgInNtYXJ0LW1vbmV5Il0sICJ2ZXJzaW9uIjogIjEuMC4wIiwgInByb3BlcnRpZXMiOiB7ImlucHV0IjogeyJ0eXBlIjogIm9iamVjdCIsICJyZXF1aXJlZCI6IFsidHlwZSIsICJtZXRob2QiXSwgInByb3BlcnRpZXMiOiB7InR5cGUiOiB7InR5cGUiOiAic3RyaW5nIiwgImNvbnN0IjogImh0dHAifSwgIm1ldGhvZCI6IHsidHlwZSI6ICJzdHJpbmciLCAiZW51bSI6IFsiR0VUIiwgIkhFQUQiLCAiREVMRVRFIl19LCAicXVlcnlQYXJhbXMiOiB7InR5cGUiOiAib2JqZWN0IiwgInByb3BlcnRpZXMiOiB7ImNoYWluIjogeyJ0eXBlIjogInN0cmluZyIsICJkZXNjcmlwdGlvbiI6ICJiYXNlLCBldGgsIG9yIHJvYmluaG9vZCIsICJkZWZhdWx0IjogImJhc2UiLCAidGl0bGUiOiAiQ2hhaW4ifSwgIm1pbl91c2QiOiB7InR5cGUiOiAibnVtYmVyIiwgImRlc2NyaXB0aW9uIjogIk1pbmltdW0gVVNEIHZhbHVlIiwgImRlZmF1bHQiOiAxMDAwMDAsICJ0aXRsZSI6ICJNaW4gVXNkIn0sICJob3VycyI6IHsidHlwZSI6ICJpbnRlZ2VyIiwgImRlc2NyaXB0aW9uIjogIkxvb2tiYWNrIGhvdXJzICgxLTI0KSIsICJkZWZhdWx0IjogMSwgInRpdGxlIjogIkhvdXJzIn0sICJ0eXBlIjogeyJ0eXBlIjogInN0cmluZyIsICJkZXNjcmlwdGlvbiI6ICJ0b2tlbiB8IG5hdGl2ZSB8IGFsbCIsICJkZWZhdWx0IjogImFsbCIsICJ0aXRsZSI6ICJUeXBlIn0sICJsaW1pdCI6IHsidHlwZSI6ICJpbnRlZ2VyIiwgImRlc2NyaXB0aW9uIjogIk1heCByZXN1bHRzIiwgImRlZmF1bHQiOiAyMCwgInRpdGxlIjogIkxpbWl0In19fX19LCAib3V0cHV0IjogeyJ0eXBlIjogIm9iamVjdCIsICJyZXF1aXJlZCI6IFsidHlwZSJdLCAicHJvcGVydGllcyI6IHsidHlwZSI6IHsidHlwZSI6ICJzdHJpbmcifSwgImV4YW1wbGUiOiB7fX19fSwgInR5cGUiOiAib2JqZWN0IiwgInJlcXVpcmVkIjogWyJpbnB1dCJdfSwgImluZm8iOiB7ImlucHV0IjogeyJ0eXBlIjogImh0dHAiLCAibWV0aG9kIjogIkdFVCIsICJxdWVyeVBhcmFtcyI6IHsiY2hhaW4iOiAiYmFzZSIsICJtaW5fdXNkIjogMTAwMDAwLCAiaG91cnMiOiAxLCAidHlwZSI6ICJhbGwiLCAibGltaXQiOiAyMH19LCAib3V0cHV0IjogeyJ0eXBlIjogIm9iamVjdCIsICJmb3JtYXQiOiAianNvbiIsICJleGFtcGxlIjogIntcImNoYWluXCI6XCJCYXNlXCIsXCJjb3VudFwiOjgsXCJ0cmFuc2FjdGlvbnNcIjpbe1wic3ltYm9sXCI6XCJVU0RDXCIsXCJ1c2RfdmFsdWVcIjpcIiQyLjFNXCIsXCJmcm9tX2xhYmVsXCI6XCJDb2luYmFzZVwiLFwidG9cIjpcIjB4Li4uXCIsXCJ0aW1lc3RhbXBcIjpcIjIwMjYtMDYtMDNUMTE6MDA6MDBaXCJ9XX0ifX19fX0=SHA-256 of the canonicalized challenge: 9527eef2706ac29d00094eefbad19571ae556ca4fbed8f39fc767a56f14889c2
Raw signals
The exact input the scoring function was given. A signal we could not determine has
observed: false and contributes nothing to the score — it is never counted as a failure.
signals
[
{
"id": "probe_ok",
"value": true,
"observed": true,
"detail": null
},
{
"id": "challenge_served",
"value": true,
"observed": true,
"detail": null
},
{
"id": "challenge_decodes",
"value": true,
"observed": true,
"detail": null
},
{
"id": "wire_form",
"value": "both",
"observed": true,
"detail": null
},
{
"id": "x402_version",
"value": 2,
"observed": true,
"detail": null
},
{
"id": "tls_ok",
"value": true,
"observed": true,
"detail": null
},
{
"id": "tls_protocol",
"value": null,
"observed": false,
"detail": "The negotiated TLS version is not exposed to the probe."
},
{
"id": "redirect_count",
"value": 0,
"observed": true,
"detail": null
},
{
"id": "redirect_scheme_downgrade",
"value": false,
"observed": true,
"detail": "Cross-scheme redirects are refused."
},
{
"id": "resource_origin_match",
"value": true,
"observed": true,
"detail": null
},
{
"id": "network_recognized",
"value": true,
"observed": true,
"detail": "Recognized means present in the tx402 signed release manifest."
},
{
"id": "asset_recognized",
"value": true,
"observed": true,
"detail": "Recognized means present in the tx402 signed release manifest."
},
{
"id": "facilitator_known",
"value": null,
"observed": false,
"detail": "The challenge named no facilitator."
},
{
"id": "amount_canonical",
"value": true,
"observed": true,
"detail": null
},
{
"id": "amount_magnitude_band",
"value": "small",
"observed": true,
"detail": null
},
{
"id": "pay_to_wellformed",
"value": true,
"observed": true,
"detail": null
},
{
"id": "pay_to_declared_dynamic",
"value": false,
"observed": true,
"detail": null
},
{
"id": "timeout_sane",
"value": false,
"observed": true,
"detail": "Authorization window 300s exceeds the tx402 maximum of 60s."
},
{
"id": "scheme_known",
"value": true,
"observed": true,
"detail": null
},
{
"id": "requirement_count",
"value": 2,
"observed": true,
"detail": null
},
{
"id": "challenge_size_bytes",
"value": 785,
"observed": true,
"detail": null
},
{
"id": "first_seen_age_days",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "scan_count",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "availability_30d",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "latency_p50_ms",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "price_changes_90d",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "recipient_changes_90d",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "recipient_unstable_undeclared",
"value": null,
"observed": false,
"detail": "No history yet."
},
{
"id": "terms_changed_within_24h",
"value": null,
"observed": false,
"detail": "No history yet."
}
]