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Utilia Solana Preflight

offline

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.

Call it x402 v2

x402 v2

Base URL
https://api.utilia.ink
Payment
x402 v2, header channel
$ curl -i 'https://api.utilia.ink/v1/fees/priority'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 4 paid routes on api.utilia.ink

GET/v1/fees/prioritySolana$0.002since 07-25
GET/v1/token/So11111111111111111111111111111111111111112Solana$0.006since 07-25
GET/v1/transaction/11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111Solana$0.004since 07-25
POST/v1/transaction/simulateSolana$0.008since 07-25

Prices as captured in the 402 response: median $0.005 across the 4 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/v1/fees/priorityNo description$0.002SolanaUSDCheadersince 07-25
GET/v1/token/So11111111111111111111111111111111111111112No description$0.006SolanaUSDCheadersince 07-25
GET/v1/transaction/11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111No description$0.004SolanaUSDCheadersince 07-25
POST/v1/transaction/simulateNo description$0.008SolanaUSDCheadersince 07-25

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

First of 4 payloads captured by the monitor.

114 lines, scroll inside

{
  "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
}
Other captured 402 responses (3)

Captured payload 2 of 4

{
  "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": "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",
            "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
}

Captured payload 3 of 4

{
  "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
}

Captured payload 4 of 4

{
  "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
}

Can I trust it score from our own monitoring

score from our own monitoring

Not ranked yet: this listing was not in the ranked pool for Blockchain the last time we built it, which happens at most once a minute. A service listed moments ago enters at the next rebuild.

Reliability
0% uptime 30d
Compliance
A 13/13 checks pass, stale (probe failing)
Price
$0.002 to $0.008 p30 in Blockchain
Risk
clean no risk flag
Traction
---
13/13 compliance checks
  • 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

402 terms unchanged since 2026-08-24. Last up 2026-09-05.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

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.

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.

All measured facts

What it does

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.

Utilia Solana Preflight is a listed x402 Blockchain API. Captured payment terms name Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-25 to 2026-10-24 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Blockchain

uptime · latest daily rollup
0%
uptime 7d
0%
uptime 30d
0%
uptime 90d
94.6%
response p95
-
avg response
-
total checks
123

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min)
$0.002
price (max)
$0.008
category percentile (min)
p30 in Blockchain
category percentile (max)
p28 in Blockchain
endpoints / prices
4 / 4
model
tiered
stability
0%

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.

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.

member since
2026-07-25
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Offlineno response343ms0
Offlineno response295ms0
Offlineno response177ms0
Offlineno response215ms0
Offlineno response197ms0
Offlineno response427ms0
Offlineno response675ms0
Offlineno response596ms0
Offlineno response492ms0
Offlineno response583ms0
Offlineno response361ms0
Offlineno response300ms0
Offlineno response401ms0
Offlineno response482ms0
Offlineno response745ms0
Offlineno response384ms0
Offlineno response434ms0
Offlineno response561ms0

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume

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.

Uptime 29 of 29 completed days below 100%
uptime 0%
Uptime
29 of 29 completed days below 100%

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.

More charts

Scores over time

x402 compliance low 13/13, high 13/13

09-25 to 10-24* UTC

Price percentile in Blockchain own low to high; exact values below

09-25 to 10-24* UTC

Site signals present (of 6) own low to high; exact values below

09-25 to 10-24* UTC

Scores: one day per column, 09-25 to 10-24*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

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.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-25 to 2026-10-24: uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayUptimeResponseCompliancePrice percentileSite signals
2026-09-250%no data13/13p320/6
2026-09-260%no data13/13p310/6
2026-09-270%no data13/13p310/6
2026-09-280%no data13/13p310/6
2026-09-290%no data13/13p300/6
2026-09-300%no data13/13p300/6
2026-10-010%no data13/13p300/6
2026-10-020%no data13/13p300/6
2026-10-030%no data13/13p300/6
2026-10-040%no data13/13p300/6
2026-10-050%no data13/13p270/6
2026-10-060%no data13/13p270/6
2026-10-070%no data13/13p270/6
2026-10-080%no data13/13p300/6
2026-10-090%no data13/13p300/6
2026-10-100%no data13/13p300/6
2026-10-110%no data13/13p300/6
2026-10-120%no data13/13p300/6
2026-10-130%no data13/13p300/6
2026-10-140%no data13/13p310/6
2026-10-150%no data13/13p310/6
2026-10-160%no data13/13p310/6
2026-10-170%no data13/13p310/6
2026-10-180%no data13/13p310/6
2026-10-190%no data13/13p310/6
2026-10-200%no data13/13p310/6
2026-10-210%no data13/13p310/6
2026-10-220%no data13/13p310/6
2026-10-230%no data13/13p300/6
2026-10-24*0%no data13/13p300/6

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5 of 75 other ranked services in Blockchain, ordered by the same measured score.

see the whole category

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Delisting

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