●
54ch10 Brief API
Verification PAYMENT-READYpayment-ready until 2026-09-13
GET /v1/open $0.015 (URL brief+whois+page). GET /v1/stack?pack=1 $1 prepaid (80 calls). Start: https://54ch10.uk/wire.md. Analytics-only, not advice.
Pay from $0.001 to $1.00 in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-08-25 · no on-chain settlement recorded yet
VERDICT
ranking generation 3solid 89/100 #20 of 64 in Verification by measured score
What the score read on this service: status online, 100% uptime 30d, 408ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
It is a score inside Verification, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 64 listings, this one among them. That set is wider than the 64 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
ALTERNATIVES IN VERIFICATION
Other Verification services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| Rubric Protocol — Post-Quantum AI Attestation | strong | 99 | 100% | --- |
| scvd.store — evidence observatory for the x402 economy | strong | 97 | 100% | --- |
| probe402 | strong | 96 | 100% | --- |
| Hermes Plant | strong | 95 | 100% | --- |
| Aegis | strong | 95 | 99.2% | --- |
5 of 63 other ranked services in Verification
ASSESSMENT
updated 27m agoThe parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 408ms
- avg response
- 251ms
- total checks
- 1,061
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.001 to $1.00 (p5 in Verification)
- price (min)
- $0.001
- price (max)
- $1.00
- category percentile (min)
- p5 in Verification
- category percentile (max)
- p79 in Verification
- endpoints / prices
- 11 / 7
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 255d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2025-12-20
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
CHANGES
1 in 30dPayout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes schema changed 10d ago (1 in 30d)
schema changed · 10d ago
endpoint added GET /v1/domain
endpoint added GET /v1/encode
endpoint added GET /v1/fetch
endpoint added GET /v1/hash
endpoint added GET /v1/normalize-url
endpoint added GET /v1/open
endpoint added GET /v1/stack
schema added GET /v1/domain exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/domain exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/encode exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/encode exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/fetch exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/fetch exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/hash exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/hash exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/normalize-url exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/normalize-url exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/open exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/open exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
schema added GET /v1/stack exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USDC","version":"2"}
schema added GET /v1/stack exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 60 {"feePayer":"CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"}
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /v1/brief | $0.01 | Base/Solana | USDC | header | |
| GET | /v1/dns | $0.002 | Base/Solana | USDC | header | |
| GET | /v1/domain | $0.008 | Base/Solana | USDC | header | |
| GET | /v1/encode | $0.001 | Base/Solana | USDC | header | |
| GET | /v1/fetch | $0.005 | Base/Solana | USDC | header | |
| GET | /v1/hash | $0.001 | Base/Solana | USDC | header | |
| GET | /v1/normalize-url | $0.001 | Base/Solana | USDC | header | |
| GET | /v1/open | $0.015 | Base/Solana | USDC | header | |
| GET | /v1/stack | $1.00 | Base/Solana | USDC | header | |
| GET | /v1/tls | $0.005 | Base/Solana | USDC | header | |
| GET | /v1/whois | $0.005 | Base/Solana | USDC | header |
11 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/brief returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://54ch10.uk/v1/brief'
// 402 response (captured by monitor) · 11 payloads · click to expand
[
{
"error": "Payment required. Canonical /v1/brief is x402-gated (including probes with missing type/q). Demo free: header X-54ch10-Free: 1 or GET /v1/brief/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/brief?type=address&q=0x0000000000000000000000000000000000000000",
"tags": [
"security",
"wallet",
"phishing",
"scam",
"wallet-risk",
"honeypot",
"url-reputation",
"pre-interact",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 pre-interact risk brief (address|token|url). Analytics-only — not financial advice.",
"serviceName": "54ch10 Brief"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "https://example.com",
"type": "url"
}
},
"output": {
"type": "json",
"example": {
"q": "https://example.com",
"ok": true,
"band": "clear",
"tier": "x402",
"type": "url",
"flags": [],
"score": 12,
"sources": [
{
"id": "openphish",
"label": "OpenPhish",
"status": "live"
}
],
"summary": "No elevated phishing or on-chain risk signals in free live sources.",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"type",
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Address, token id/symbol, or URL"
},
"type": {
"enum": [
"address",
"token",
"url"
],
"type": "string",
"description": "What to brief"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/whois is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/whois/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/whois?domain=example.com",
"tags": [
"whois",
"rdap",
"domain-age",
"registrar",
"fraud-signal",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 WHOIS/RDAP domain age + registrar. Analytics-only.",
"serviceName": "54ch10 Whois"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"domain": "example.com"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"tier": "x402",
"domain": "example.com",
"age_days": 11300,
"registrar": "Example Registrar, Inc.",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently.",
"registered": true
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain name"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/dns is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/dns/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/dns?domain=example.com",
"tags": [
"dns",
"mx",
"ns",
"fraud-signal",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 DNS A/MX/NS summary. Analytics-only.",
"serviceName": "54ch10 DNS"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"domain": "example.com"
}
},
"output": {
"type": "json",
"example": {
"a": [
"93.184.216.34"
],
"ok": true,
"tier": "x402",
"flags": [],
"domain": "example.com",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain name"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/tls is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/tls/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/tls?domain=example.com",
"tags": [
"tls",
"certificate",
"ct",
"fraud-signal",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 TLS cert issuer/validity (CT). Analytics-only.",
"serviceName": "54ch10 TLS"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"domain": "example.com"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"tier": "x402",
"domain": "example.com",
"issuer": "C=US, O=Let's Encrypt",
"not_after": "2026-04-01T00:00:00",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently.",
"not_before": "2026-01-01T00:00:00"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain name"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/open is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/open/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "15000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "15000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/open?q=https%3A%2F%2Fexample.com",
"tags": [
"open",
"url",
"brief",
"whois",
"fetch",
"pre-interact",
"ssrf-safe",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 open — brief + whois + page fetch in one call. Analytics-only. SSRF-blocked private IPs. USDC $0.015.",
"serviceName": "54ch10 Open"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "https://example.com"
}
},
"output": {
"type": "json",
"example": {
"q": "https://example.com",
"ok": true,
"url": "https://example.com",
"page": {
"status": 200,
"markdown": "# Example Domain\n\n…",
"contentType": "text/html"
},
"tier": "x402",
"brief": {
"band": "clear",
"flags": [],
"score": 12,
"sources": [
{
"id": "openphish",
"label": "OpenPhish",
"status": "live"
}
],
"summary": "URL parsed (host: example.com)."
},
"domain": {
"created": "1995-08-14T04:00:00Z",
"age_days": 11300,
"registrar": "RESERVED-Internet Assigned Numbers Authority"
},
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Public http(s) URL to open (alias: url=)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/domain is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/domain/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "8000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "8000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/domain?q=example.com",
"tags": [
"domain",
"whois",
"dns",
"tls",
"rdap",
"fraud-signal",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 domain bundle — WHOIS + DNS + TLS in one call. Analytics-only. USDC $0.008.",
"serviceName": "54ch10 Domain"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "example.com"
}
},
"output": {
"type": "json",
"example": {
"q": "example.com",
"ok": true,
"dns": {
"a": [
"93.184.216.34"
],
"flags": []
},
"tls": {
"issuer": "C=US, O=Let's Encrypt",
"https_reachable": true
},
"tier": "x402",
"whois": {
"created": "1995-08-14T04:00:00Z",
"age_days": 11300,
"registrar": "RESERVED-Internet Assigned Numbers Authority"
},
"domain": "example.com",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Domain name (alias: domain=)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. GET|POST /v1/stack?pack=1 is x402-gated (USDC $1.00 → 80 credits, 7-day TTL, wallet-bound). Unused credits expire. Then send X-54ch10-Stack: <id>. GET /v1/stack?id= for remaining. NOT a vault. Not refundable.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "1000000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/stack",
"tags": [
"stack",
"prepaid",
"credits",
"x402",
"agents"
],
"mimeType": "application/json",
"description": "54ch10 prepaid stack pack=1 — USDC $1.00 → 80 toolkit credits, wallet-bound, KV TTL 7 days. Unused credits expire. Then send X-54ch10-Stack: <id> on any toolkit/open/brief/domain/fetch call. NOT a vault. Not refundable.",
"serviceName": "54ch10 Stack $1.00"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"q": "example"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"note": "Unused credits expire. NOT a vault. Not refundable.",
"pack": 1,
"header": "X-54ch10-Stack: abc123",
"credits": 80,
"expires": "2026-09-01T00:00:00.000Z",
"paid_usd": "1.00",
"ttl_days": 7,
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Input"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"bodyType": {
"type": "string",
"const": "json"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"id": {
"type": "string",
"description": "Stack id (remaining lookup; omit to buy)"
},
"pack": {
"enum": [
"1",
"5",
"25",
"100"
],
"type": "string",
"description": "Prepaid pack size (default 1)"
},
"amount": {
"type": "string",
"description": "Alias for pack (1|5|25|100)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/fetch is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/fetch/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/fetch?url=https%3A%2F%2Fexample.com",
"tags": [
"fetch",
"url",
"markdown",
"readability",
"ssrf-safe",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 fetch public URL → {status, contentType, markdown|text}. SSRF-blocked private IPs. Cap 200KB / ~10s. Analytics-only.",
"serviceName": "54ch10 Fetch"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://example.com",
"format": "markdown"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"url": "https://example.com",
"tier": "x402",
"bytes": 1200,
"format": "markdown",
"status": 200,
"markdown": "# Example Domain\n\n…",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently.",
"contentType": "text/html"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Public http(s) URL to fetch"
},
"format": {
"enum": [
"markdown",
"text"
],
"type": "string",
"description": "Prefer markdown extraction"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/hash is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/hash/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/hash?algo=sha256&q=hello",
"tags": [
"hash",
"sha256",
"sha1",
"md5",
"digest",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 hash (sha256|sha1|md5). GET ?algo=&q= or POST JSON {algo,data}. Analytics-only.",
"serviceName": "54ch10 Hash"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "hello",
"algo": "sha256"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"hex": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
"algo": "sha256",
"tier": "x402",
"base64": "LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"algo",
"q"
],
"properties": {
"q": {
"type": "string",
"description": "UTF-8 data to hash (or POST JSON {algo,data})"
},
"algo": {
"enum": [
"sha256",
"sha1",
"md5"
],
"type": "string",
"description": "Hash algorithm"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/encode is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/encode/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/encode?format=base64&q=hello",
"tags": [
"encode",
"base64",
"hex",
"urlencode",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 encode (base64|hex|url). GET ?format=&q= or POST JSON. Analytics-only.",
"serviceName": "54ch10 Encode"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "hello",
"format": "base64"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"tier": "x402",
"format": "base64",
"encoded": "aGVsbG8=",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"format",
"q"
],
"properties": {
"q": {
"type": "string",
"description": "UTF-8 data to encode (or POST JSON {format,data|q})"
},
"format": {
"enum": [
"base64",
"hex",
"url"
],
"type": "string",
"description": "Encoding format"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required. Canonical /v1/normalize-url is x402-gated. Demo free: header X-54ch10-Free: 1 or GET /v1/normalize-url/free. Or Bearer 54k_ / PAYMENT-SIGNATURE.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xF9eb0Caa13B78f92E2850bf5961eB9736354aA3d",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "EcGUGSda9VNzYgUmYA8mTg88MhNYeyA5tgaCgwzxfFNs",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://54ch10.uk/v1/normalize-url?q=https%3A%2F%2Fexample.com",
"tags": [
"url",
"canonicalize",
"normalize",
"analytics"
],
"mimeType": "application/json",
"description": "54ch10 URL canonicalize. Analytics-only.",
"serviceName": "54ch10 Normalize URL"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "HTTPS://Example.COM/a/?b=1#x"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"tier": "x402",
"input": "HTTPS://Example.COM/a/?b=1#x",
"canonical": "https://example.com/a?b=1",
"disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "URL to canonicalize"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/54ch10-brief-api/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
UPTIME
30d UPTIME 100%
RESPONSE TIME
AVG RESP 251ms
PRICE (captured 402, USD)
Median across 11 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
PILLARS OVER TIME (measured)
price percentile in Verification
site signals present (of 6)
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-08-27 · last up 2026-09-06
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 108ms
● OK 91ms
● OK 85ms
● OK 172ms
● OK 114ms
● OK 76ms
● OK 134ms
● OK 152ms
● OK 199ms
● OK 175ms
● OK 79ms
● OK 95ms
● OK 85ms
● OK 331ms
● OK 140ms
● OK 94ms
● OK 132ms
● OK 147ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/54ch10-brief-api?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/54ch10-brief-api.svg" alt="54ch10 Brief API listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/54ch10-brief-api?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/54ch10-brief-api?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/54ch10-brief-api.svg?data=uptime" alt="54ch10 Brief API uptime on x402-list" height="28"> </a>