x402 List

x402 Protocol Service Directory

●

Utilia Agent Utilities

Data PAYMENT-READY

payment-ready until 2026-08-20

Production x402 utilities for autonomous agents: Solana transaction analysis and simulation, live priority-fee quantiles, SPL token authority and concentration risk checks, and deterministic PDF-to-Markdown extraction. No API key; exact USDC payment on Solana or Base; OpenAPI, MCP, A2A, llms.txt, and public uptime telemetry included.

Pay from $0.002 to $0.006 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-07-26 · $0.04 all-time · settled via coinbase, payAI

BASE URL https://api.utilia.ink │ WEBSITE https://utilia.ink │ ENDPOINTS 4 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-07-25 │ MONITORED SINCE 2026-07-25

ASSESSMENT

updated 1h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 99.9%
uptime 24h
100%
uptime 7d
99.8%
uptime 30d
99.9%
uptime 90d
99.9%
response p95
321ms
avg response
188ms
total checks
1,712

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.

jump to compliance checklist

price $0.002 to $0.006 (p21 in Data)
price (min)
$0.002
price (max)
$0.006
category percentile (min)
p21 in Data
category percentile (max)
p16 in Data
endpoints / prices
4 / 2
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
94d
registrar
NameCheap, Inc.
hosting
custom
domain created
2026-05-06

Identity facts, not a risk score.

traction $0.083 30d · 13 buyers
volume 30d
$0.083
buyers 30d
13
settlements 30d
42
first settlement
2026-07-26
last settlement
2026-08-13
top buyer share
38% of 30d volume
trend 7d vs 30d
1.19x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$0.04
settlements all-time
42
median settlement 30d
$0.002
max settlement 30d
$0.01
settled via
coinbase ($0.06, 21 tx), payAI ($0.04, 21 tx)

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with Utilia Solana Preflight.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides Solana transaction analysis, fee estimation, and token risk assessment services

category
blockchain-analytics
in
path
auth
none
blockchaintransaction-analysisfee-estimationtoken-risksolana

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /base/v1/fees/priority $0.002 Base USDC header
GET /base/v1/token/So11111111111111111111111111111111111111112 $0.006 Base USDC header
GET /v1/fees/priority $0.002 Solana USDC header
GET /v1/token/So11111111111111111111111111111111111111112 $0.006 Solana USDC header
4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /base/v1/fees/priority returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://api.utilia.ink/base/v1/fees/priority'
// 402 response (captured by monitor) · 4 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
        },
        "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": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBf9305e6eE38E92C296Aa3Fb0a844977307520fA",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.utilia.ink/base/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": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
        },
        "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": "So11111111111111111111111111111111111111112",
              "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": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBf9305e6eE38E92C296Aa3Fb0a844977307520fA",
        "amount": "6000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.utilia.ink/base/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": "So11111111111111111111111111111111111111112",
              "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": "/base/v1/token/:mint"
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/utilia-agent-utilities/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
07-25 · uptime 100.0% · 184ms avg07-26 · uptime 100.0% · 153ms avg07-27 · uptime 100.0% · 155ms avg07-28 · uptime 100.0% · 158ms avg07-29 · uptime 100.0% · 145ms avg07-30 · uptime 100.0% · 130ms avg07-31 · uptime 98.9% · 174ms avg08-01 · uptime 100.0% · 182ms avg08-02 · uptime 100.0% · 172ms avg08-03 · uptime 100.0% · 146ms avg08-04 · uptime 100.0% · 177ms avg08-05 · uptime 100.0% · 245ms avg08-06 · uptime 100.0% · 209ms avg08-07 · uptime 98.9% · 248ms avg08-08 · uptime 100.0% · 251ms avg08-09 · uptime 100.0% · 236ms avg08-10 · uptime 100.0% · 249ms avg08-11 · uptime 100.0% · 217ms avg08-12 · uptime 100.0% · 171ms avg08-13 · uptime 100.0% · 132ms avg07-2508-13
90d UPTIME 99.9%
RESPONSE TIME
07-25 · 184ms avg07-25 · 184ms avg07-26 · 153ms avg07-26 · 153ms avg07-27 · 155ms avg07-27 · 155ms avg07-28 · 158ms avg07-28 · 158ms avg07-29 · 145ms avg07-29 · 145ms avg07-30 · 130ms avg07-30 · 130ms avg07-31 · 174ms avg07-31 · 174ms avg08-01 · 182ms avg08-01 · 182ms avg08-02 · 172ms avg08-02 · 172ms avg08-03 · 146ms avg08-03 · 146ms avg08-04 · 177ms avg08-04 · 177ms avg08-05 · 245ms avg08-05 · 245ms avg08-06 · 209ms avg08-06 · 209ms avg08-07 · 248ms avg08-07 · 248ms avg08-08 · 251ms avg08-08 · 251ms avg08-09 · 236ms avg08-09 · 236ms avg08-10 · 249ms avg08-10 · 249ms avg08-11 · 217ms avg08-11 · 217ms avg08-12 · 171ms avg08-12 · 171ms avg08-13 · 132ms avg08-13 · 132ms avg07-2508-13
AVG RESP 188ms
PRICE (captured 402, USD)
07-25 · $0.00408-13 · $0.004$0.00407-2508-13

Median across 4 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-25 uptime: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checks07-29 uptime: 100.0% compliance: 100% checks07-30 uptime: 100.0% compliance: 100% checks07-31 uptime: 100.0% compliance: 100% checks08-01 uptime: 99.8% compliance: 100% checks08-02 uptime: 99.9% compliance: 100% checks08-03 uptime: 99.9% compliance: 100% checks08-04 uptime: 99.9% compliance: 100% checks08-05 uptime: 99.9% compliance: 100% checks08-06 uptime: 99.9% compliance: 100% checks08-07 uptime: 99.8% compliance: 100% checks08-08 uptime: 99.8% compliance: 100% checks08-09 uptime: 99.9% compliance: 100% checks08-10 uptime: 99.9% compliance: 100% checks08-11 uptime: 99.9% compliance: 100% checks08-12 uptime: 99.9% compliance: 100% checks08-13 uptime: 99.9% compliance: 100% checksuptimecompliance07-2508-13

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 Data
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)
07-26 · $0.0307-27 · $0.0007-28 · $0.0007-30 · $0.0007-31 · $0.0108-01 · $0.0008-03 · $0.0008-04 · $0.0008-05 · $0.0008-06 · $0.0008-07 · $0.0008-08 · $0.0008-09 · $0.0008-10 · $0.0008-11 · $0.0008-12 · $0.0008-13 · $0.00peak $0.0307-2608-13

Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 2 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
07-26 · 2 buyers07-27 · 1 buyer07-28 · 1 buyer07-30 · 1 buyer07-31 · 4 buyers08-01 · 2 buyers08-03 · 1 buyer08-04 · 1 buyer08-05 · 2 buyers08-06 · 1 buyer08-07 · 1 buyer08-08 · 1 buyer08-09 · 1 buyer08-10 · 2 buyers08-11 · 1 buyer08-12 · 1 buyer08-13 · 3 buyerspeak 4 buyers07-2608-13

Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-25 · last up 2026-08-13

  • 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 63ms
● OK 111ms
● OK 114ms
● OK 102ms
● OK 77ms
● OK 122ms
● OK 97ms
● OK 58ms
● OK 200ms
● OK 134ms
● OK 79ms
● OK 78ms
● OK 124ms
● OK 101ms
● OK 104ms
● OK 44ms
● OK 74ms
● OK 214ms
18 of 1,716 checks · live count

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