payment-ready 2026-09-05, probe currently failing
Machine-payable Solana transaction intelligence for autonomous agents: live priority-fee quantiles, transaction simulation, confirmed-transaction diagnostics, and token mint risk analysis. Every response is deterministic structured JSON, paid per call in mainnet USDC over x402 v2, with no account or API key.
Pay from $0.002 to $0.008 per request in USDC on Solana, settled onchain via the x402 protocol, no signup, no API key needed.
VERDICT
ranking generation 3solid 80/100 #35 of 54 in Blockchain by measured score
What the score read on this service: status offline, 82.9% uptime 30d, 477ms response p95, x402 compliance 13 of 13, $0.002 price against the category. 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 Blockchain, 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 54 listings, this one among them. That set is wider than the 54 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 BLOCKCHAIN
Other Blockchain 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 |
|---|---|---|---|---|
| Loyal Spark | strong | 96 | 100% | $121.88 |
| OneSource | strong | 95 | 100% | $101.46 |
| true402 | solid | 90 | 100% | $0.26 |
| SolSigs | solid | 89 | 100% | $0 |
| GPUOps Blockchain Data MCP | solid | 88 | 100% | $0 |
ASSESSMENT
updated 20m 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 82.9%
- uptime · latest daily rollup
- 0%
- uptime 7d
- 0%
- uptime 30d
- 82.9%
- uptime 90d
- 97.3%
- response p95
- 477ms
- avg response
- 285ms
- total checks
- 680
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (13/13), stale (probe failing)
13 of 13 x402 conformance checks pass. Full checklist below.
price $0.002 to $0.008 (p30 in Blockchain)
- price (min)
- $0.002
- price (max)
- $0.008
- category percentile (min)
- p30 in Blockchain
- category percentile (max)
- p24 in Blockchain
- endpoints / prices
- 4 / 4
- model
- tiered
- stability
- 0%
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
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction ---
This service shares a payout address and its probe has been failing, so its on-chain volume is suppressed until it responds again. Settlements on a shared address while a member is down are not attributed to it.
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/fees/priority | $0.002 | Solana | USDC | header | |
| GET | /v1/token/So11111111111111111111111111111111111111112 | $0.006 | Solana | USDC | header | |
| GET | /v1/transaction/11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 | $0.004 | Solana | USDC | header | |
| POST | /v1/transaction/simulate | $0.008 | Solana | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/fees/priority returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://api.utilia.ink/v1/fees/priority'
// 402 response (captured by monitor) · 4 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "AX1TzKChcrgjVW2JMtcYFLgxerfH1XfW7etuSdMSUKh5",
"amount": "6000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.utilia.ink/v1/token/So11111111111111111111111111111111111111112",
"tags": [
"solana",
"token",
"risk",
"mint",
"agents"
],
"iconUrl": "https://api.utilia.ink/favicon.ico",
"mimeType": "application/json",
"description": "Inspect a Solana mint for live authorities, Token-2022 controls, supply, and holder concentration signals.",
"serviceName": "Utilia Solana Token Safety"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"mint": "So11111111111111111111111111111111111111112"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"riskFlags": [],
"top10HolderPercent": 22.4,
"holderDataAvailable": true
}
}
},
"schema": {
"type": "object",
"$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"
],
"type": "string"
},
"pathParams": {
"type": "object",
"required": [
"mint"
],
"properties": {
"mint": {
"type": "string",
"description": "Solana token mint address"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/token/:mint"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "AX1TzKChcrgjVW2JMtcYFLgxerfH1XfW7etuSdMSUKh5",
"amount": "8000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.utilia.ink/v1/transaction/simulate",
"tags": [
"solana",
"transaction",
"simulation",
"preflight",
"agents"
],
"iconUrl": "https://api.utilia.ink/favicon.ico",
"mimeType": "application/json",
"description": "Simulate an unsigned or signed Solana transaction with a fresh blockhash and classify any failure before broadcast.",
"serviceName": "Utilia Solana Transaction Simulation"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"encoding": "base64",
"transaction": "ArlmtnavlIPsESMi1Uia79mmbZbEZmK+HlZx7BqMlR1FAR90IMVXBI6OuWEZrRqAxjv11VeeL3nxuvrBqCv0IwBbDkkeFEnb/jVpV9wyHJcI0pGxjoCgPz32yZ3jCGUAYOJLtWxkGolN2G7ehcoH7hDR0PY6hUj9xX0LBA0v6s4DAgAFCY1pIftNN1wZ0FCrCHcI4Id67GIHFncsNqD7B29hqSxkxQU6HQsSFbZPRbweL9YHJNjZ3zNKCjb6NRgpLqrunnu7MncGAPBtw4O7XGEc92Rr7tGNX3N/A9IsGzoKLCGYo/eOOPMq41E2tnxhr93AzmhqYjrTuiOPK3XKvs1MzMYjAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABz/pvU3I64CmCmJ2vN6YW6hl6JUcRulj4BvLjGFIcYg5x4ANVjjgnimJnrAV6WvFfX0ae2tCYv7rAODfChAm13r1SrEL2XpUKgnvezmIndDNOUpMzp36bNyX6+LSNbp0jbObNejj6u5WlMRbIC+SU/nhALnCPS1JB/NXYUiO/siWl/+qIvRjt1HXFQh8lPQ2wOzUR/XYsj+S+65rt/i3vCAQUICAYDAQIABAc103xDD9PCsvApAAAAaHR0cHM6Ly91dGlsaWEuaW5rL2FnZW50NDAyLW1ldGFkYXRhLmpzb24=",
"accountAddresses": []
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"succeeded": false,
"unitsConsumed": 15096,
"classification": {
"category": "program_error",
"suggestedAction": "Inspect the program logs before rebuilding the transaction."
}
}
}
},
"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": {
"required": [
"transaction"
],
"properties": {
"encoding": {
"enum": [
"base64",
"base58"
],
"type": "string"
},
"transaction": {
"type": "string",
"description": "Serialized transaction"
},
"accountAddresses": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "AX1TzKChcrgjVW2JMtcYFLgxerfH1XfW7etuSdMSUKh5",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.utilia.ink/v1/fees/priority",
"tags": [
"solana",
"priority-fees",
"compute-unit-price",
"transactions",
"agents"
],
"iconUrl": "https://api.utilia.ink/favicon.ico",
"mimeType": "application/json",
"description": "Return timestamped Solana priority-fee quantiles for compute-unit bidding, optionally localized to up to 20 writable accounts. Designed for recurring transaction-bot polling at $0.002 per call.",
"serviceName": "Utilia Solana Priority Fee Feed"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"observedAt": "2026-07-24T08:00:00.000Z",
"sampleCount": 150,
"lowMicroLamports": 1000,
"highMicroLamports": 15000,
"mediumMicroLamports": 5000
}
}
},
"schema": {
"type": "object",
"$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"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"account": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20,
"description": "Repeatable Solana account query parameter"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "AX1TzKChcrgjVW2JMtcYFLgxerfH1XfW7etuSdMSUKh5",
"amount": "4000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.utilia.ink/v1/transaction/11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
"tags": [
"solana",
"transaction",
"diagnosis",
"support",
"agents"
],
"iconUrl": "https://api.utilia.ink/favicon.ico",
"mimeType": "application/json",
"description": "Explain a confirmed Solana transaction, including balance deltas, logs, compute usage, and a retry-safe error classification.",
"serviceName": "Utilia Solana Transaction Diagnosis"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"signature": "11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"signature": "4hzZBr8uqd4ba4A28qDPJWPVGfQtrBfA63jHr7k18hEEfxN6JEsmbDkKQ8hsULMfy1CXBhJEkzUnympWvSU4DuEF",
"succeeded": true,
"classification": {
"category": "none",
"suggestedAction": null
}
}
}
},
"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"
],
"type": "string"
},
"pathParams": {
"type": "object",
"required": [
"signature"
],
"properties": {
"signature": {
"type": "string",
"description": "Base58 Solana transaction signature"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/transaction/:signature"
}
},
"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/utilia-solana-preflight/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.
Median across 4 endpoints. Use the selector to isolate one.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
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.
COMPLIANCE
13/13 checks pass · grade A · stale (probe failing)last 402 captured 2026-08-24 · last up 2026-09-05
- 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
EMBED THIS BADGE
<a href="https://x402-list.com/services/utilia-solana-preflight?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/utilia-solana-preflight.svg" alt="Utilia Solana Preflight listed on x402-list" height="28"> </a>
[](https://x402-list.com/services/utilia-solana-preflight?utm_source=badge&utm_medium=referral&utm_campaign=embed)
<a href="https://x402-list.com/services/utilia-solana-preflight?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/utilia-solana-preflight.svg?data=uptime" alt="Utilia Solana Preflight uptime on x402-list" height="28"> </a>