x402 List

x402 Protocol Service Directory

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Sol Node Labs

Blockchain

Pseudonymous pay-per-call crypto risk intelligence: deterministic Solidity triage, Base token risk screening, and vetted crypto bounty intelligence. USDC via x402 on Base and Solana; no account or API key.

Pay from $0.01 to $0.02 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-07-18 · no on-chain settlement recorded yet

BASE URL https://api.solnodelabs.com │ WEBSITE https://api.solnodelabs.com │ ENDPOINTS 3 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-07-18 │ MONITORED SINCE 2026-07-18

ASSESSMENT

updated 3h ago

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

reliability 23.7%
uptime 24h
0%
uptime 7d
0%
uptime 30d
23.7%
uptime 90d
23.7%
response p95
415ms
avg response
210ms
total checks
1,549

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.

jump to compliance checklist

price $0.01 to $0.02 (p61 in Blockchain)
price (min)
$0.01
price (max)
$0.02
category percentile (min)
p61 in Blockchain
category percentile (max)
p53 in Blockchain
endpoints / prices
3 / 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
22d
registrar
Porkbun LLC
hosting
custom
domain created
2026-07-17

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
first settlement
---
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.

WHAT IT DOES

ai-derived

Provides blockchain security services including bounty intelligence, token risk assessment, and Solidity smart contract audits

category
blockchain-security
blockchainsecuritysmart-contractsauditrisk-assessment

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 /v1/bounty-intel $0.01 Base/Solana USDC -
POST /v1/solidity-audit $0.02 Base/Solana USDC -
GET /v1/token-risk $0.02 Base/Solana USDC -
3 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://api.solnodelabs.com/v1/bounty-intel'
// 402 response (captured by monitor) · 3 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x0eb71e8b2D50deC295426306724eC9782Ae39C85",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 90
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "5xvht4fYDs99yprfm4UeuHSLxMBRpotfBtUCQqM3oDNG"
        },
        "payTo": "AoTwBXvZJoysG1CEVhNjBETqqNv1TGNcKS1zaMfTGtSK",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 90
      }
    ],
    "resource": {
      "url": "https://api.solnodelabs.com/v1/solidity-audit",
      "tags": [
        "solidity",
        "security",
        "smart-contract",
        "risk-analysis"
      ],
      "mimeType": "application/json",
      "description": "Deterministic Solidity source-code security risk triage with evidence and line numbers",
      "serviceName": "Solidity Risk Lens"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "source": "pragma solidity ^0.8.20; contract Example { }"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "findings": [],
              "riskBand": "low",
              "riskScore": 0
            }
          }
        },
        "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": [
                    "source"
                  ],
                  "properties": {
                    "source": {
                      "type": "string",
                      "maxLength": 100000,
                      "description": "Solidity source code"
                    }
                  }
                },
                "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": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x0eb71e8b2D50deC295426306724eC9782Ae39C85",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 90
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "5xvht4fYDs99yprfm4UeuHSLxMBRpotfBtUCQqM3oDNG"
        },
        "payTo": "AoTwBXvZJoysG1CEVhNjBETqqNv1TGNcKS1zaMfTGtSK",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 90
      }
    ],
    "resource": {
      "url": "https://api.solnodelabs.com/v1/token-risk",
      "tags": [
        "evm",
        "ethereum",
        "base",
        "token",
        "security",
        "risk",
        "liquidity"
      ],
      "mimeType": "application/json",
      "description": "Three-source Base or Ethereum token risk screen covering honeypot simulation, taxes, ownership controls, verification, holders, liquidity, and market signals",
      "serviceName": "EVM Token Risk Gate"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "evidence": {
                "verifiedSource": true,
                "topLiquidityUsd": 1000000
              },
              "riskBand": "low",
              "riskScore": 10
            }
          }
        },
        "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",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string",
                      "default": "base"
                    },
                    "address": {
                      "type": "string",
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "description": "EVM token contract address"
                    }
                  }
                }
              },
              "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": "0x0eb71e8b2D50deC295426306724eC9782Ae39C85",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 90
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "5xvht4fYDs99yprfm4UeuHSLxMBRpotfBtUCQqM3oDNG"
        },
        "payTo": "AoTwBXvZJoysG1CEVhNjBETqqNv1TGNcKS1zaMfTGtSK",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 90
      }
    ],
    "resource": {
      "url": "https://api.solnodelabs.com/v1/bounty-intel",
      "tags": [
        "bounties",
        "crypto-work",
        "agent-jobs",
        "revenue"
      ],
      "mimeType": "application/json",
      "description": "Ranked live crypto work opportunities filtered for executability, competition, escrow evidence, and platform risk",
      "serviceName": "Crypto Bounty Intel"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "limit": 25
            }
          },
          "output": {
            "type": "json",
            "example": {
              "count": 1,
              "updatedAt": "2026-07-17T00:00:00Z",
              "opportunities": [
                {
                  "source": "Taskmarket",
                  "rewardUsd": 5,
                  "competition": 12
                }
              ]
            }
          }
        },
        "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": {
                    "limit": {
                      "type": "integer",
                      "default": 25,
                      "maximum": 100,
                      "minimum": 1
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "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/sol-node-labs/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
07-18 · uptime 0.0%07-19 · uptime 37.8% · 113ms avg07-23 · uptime 70.0% · 246ms avg07-24 · uptime 0.0%07-25 · uptime 0.0%07-26 · uptime 0.0%07-27 · uptime 0.0%07-28 · uptime 0.0%07-29 · uptime 0.0%07-30 · uptime 0.0%07-31 · uptime 0.0%08-01 · uptime 0.0%08-02 · uptime 0.0%08-03 · uptime 0.0%08-04 · uptime 0.0%08-05 · uptime 0.0%08-06 · uptime 0.0%08-07 · uptime 0.0%08-08 · uptime 0.0%08-09 · uptime 0.0%08-10 · uptime 0.0%08-11 · uptime 0.0%08-12 · uptime 0.0%08-13 · uptime 0.0%07-18 · uptime 0.0%07-19 · uptime 37.8% · 113ms avg07-20 · uptime 100.0% · 273ms avg07-21 · uptime 100.0% · 235ms avg07-22 · uptime 100.0% · 131ms avg07-23 · uptime 70.0% · 246ms avg07-24 · uptime 0.0%07-25 · uptime 0.0%07-26 · uptime 0.0%07-27 · uptime 0.0%07-28 · uptime 0.0%07-29 · uptime 0.0%07-30 · uptime 0.0%07-31 · uptime 0.0%08-01 · uptime 0.0%08-02 · uptime 0.0%08-03 · uptime 0.0%08-04 · uptime 0.0%08-05 · uptime 0.0%08-06 · uptime 0.0%08-07 · uptime 0.0%08-08 · uptime 0.0%08-09 · uptime 0.0%08-10 · uptime 0.0%08-11 · uptime 0.0%08-12 · uptime 0.0%08-13 · uptime 0.0%07-1808-13
90d UPTIME 23.7%
RESPONSE TIME
07-18 · 0ms avg07-18 · 0ms avg07-19 · 113ms avg07-19 · 113ms avg07-20 · 273ms avg07-20 · 273ms avg07-21 · 235ms avg07-21 · 235ms avg07-22 · 131ms avg07-22 · 131ms avg07-23 · 246ms avg07-23 · 246ms avg07-24 · 0ms avg07-24 · 0ms avg07-25 · 0ms avg07-25 · 0ms avg07-26 · 0ms avg07-26 · 0ms avg07-27 · 0ms avg07-27 · 0ms avg07-28 · 0ms avg07-28 · 0ms avg07-29 · 0ms avg07-29 · 0ms avg07-30 · 0ms avg07-30 · 0ms avg07-31 · 0ms avg07-31 · 0ms avg08-01 · 0ms avg08-01 · 0ms avg08-02 · 0ms avg08-02 · 0ms avg08-03 · 0ms avg08-03 · 0ms avg08-04 · 0ms avg08-04 · 0ms avg08-05 · 0ms avg08-05 · 0ms avg08-06 · 0ms avg08-06 · 0ms avg08-07 · 0ms avg08-07 · 0ms avg08-08 · 0ms avg08-08 · 0ms avg08-09 · 0ms avg08-09 · 0ms avg08-10 · 0ms avg08-10 · 0ms avg08-11 · 0ms avg08-11 · 0ms avg08-12 · 0ms avg08-12 · 0ms avg08-13 · 0ms avg08-13 · 0ms avg07-1808-13
AVG RESP 210ms
PRICE (captured 402, USD)
07-18 · $0.0208-13 · $0.02$0.0207-1808-13

Median across 3 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-18 uptime: 0.0%07-19 uptime: 13.9% compliance: 100% checks07-20 uptime: 52.4% compliance: 100% checks07-21 uptime: 66.8% compliance: 100% checks07-22 uptime: 75.1% compliance: 100% checks07-23 uptime: 74.9% compliance: 100% checks07-24 uptime: 63.3% compliance: 100% checks07-25 uptime: 56.4% compliance: 100% checks07-26 uptime: 49.5% compliance: 100% checks07-27 uptime: 44.0% compliance: 100% checks07-28 uptime: 39.5% compliance: 100% checks07-29 uptime: 36.1% compliance: 100% checks07-30 uptime: 33.0% compliance: 100% checks07-31 uptime: 30.4% compliance: 100% checks08-01 uptime: 28.3% compliance: 100% checks08-02 uptime: 26.4% compliance: 100% checks08-03 uptime: 25.1% compliance: 100% checks08-04 uptime: 24.2% compliance: 100% checks08-05 uptime: 24.2% compliance: 100% checks08-06 uptime: 24.1% compliance: 100% checks08-07 uptime: 24.0% compliance: 100% checks08-08 uptime: 24.0% compliance: 100% checks08-09 uptime: 23.9% compliance: 100% checks08-10 uptime: 23.8% compliance: 100% checks08-11 uptime: 23.8% compliance: 100% checks08-12 uptime: 23.7% compliance: 100% checks08-13 uptime: 23.7% compliance: 100% checksuptimecompliance07-1808-13

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 Blockchain
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)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

13/13 checks pass · grade A · stale (probe failing)

last 402 captured 2026-07-19 · last up 2026-07-23

  • 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
○ DOWN 61ms bad_status: unexpected HTTP 530
○ DOWN 432ms bad_status: unexpected HTTP 530
○ DOWN 63ms bad_status: unexpected HTTP 530
○ DOWN 251ms bad_status: unexpected HTTP 530
○ DOWN 139ms bad_status: unexpected HTTP 530
○ DOWN 117ms bad_status: unexpected HTTP 530
○ DOWN 155ms bad_status: unexpected HTTP 530
○ DOWN 57ms bad_status: unexpected HTTP 530
○ DOWN 379ms bad_status: unexpected HTTP 530
○ DOWN 686ms bad_status: unexpected HTTP 530
○ DOWN 214ms bad_status: unexpected HTTP 530
○ DOWN 45ms bad_status: unexpected HTTP 530
○ DOWN 250ms bad_status: unexpected HTTP 530
○ DOWN 395ms bad_status: unexpected HTTP 530
○ DOWN 83ms bad_status: unexpected HTTP 530
○ DOWN 315ms bad_status: unexpected HTTP 530
○ DOWN 436ms bad_status: unexpected HTTP 530
○ DOWN 74ms bad_status: unexpected HTTP 530
18 of 1,550 checks · live count

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