x402 List

x402 Protocol Service Directory

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AI Data Marketplace

Data

x402-paywalled data marketplace for AI agents with 10 endpoints: B2B leads, crypto candles, government contracts, foreclosures, GitHub developer emails, flight data, crypto signals, gig leads, and market research. Multi-chain USDC payments on Base, Arbitrum, and Solana. MCP tools for autonomous agent discovery and purchasing.

Pay from $0.05 to $0.15 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-03 · no on-chain settlement recorded yet

BASE URL https://ai-data-marketplace-1042299154756.us-central1.run.app │ WEBSITE https://github.com/jblaz6335/mcp-server-aidatamarketplace │ ENDPOINTS 10 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-08-03 │ MONITORED SINCE 2026-08-03

ASSESSMENT

updated 2h ago

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

reliability 100%
uptime 24h
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
76ms
avg response
76ms
total checks
1
compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.05 to $0.15 (p85 in Data)
price (min)
$0.05
price (max)
$0.15
category percentile (min)
p85 in Data
category percentile (max)
p85 in Data
endpoints / prices
4 / 3
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
6872d
registrar
MarkMonitor Inc.
hosting
custom
domain created
2007-10-09

Identity facts, not a risk score.

traction $0 30d · 0 buyers
volume 30d
$0
buyers 30d
0
settlements 30d
0
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
$0
max settlement 30d
$0
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 access to various data APIs including cryptocurrency prices, market research, leads, and other business intelligence data.

category
data-marketplace
in
query params
cryptocurrencymarket-databusiness-intelligenceenrichmentreal-estateflightsgigsgithub

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
GET /api/v1/candles $0.05 Base USDC
GET /api/v1/contracts $0.10 Base USDC
GET /api/v1/enrich_leads --- USDC
GET /api/v1/flights --- USDC
GET /api/v1/foreclosures --- USDC
GET /api/v1/gigs --- USDC
GET /api/v1/github_emails --- USDC
GET /api/v1/leads $0.05 Base USDC
GET /api/v1/market_research $0.15 Base USDC
GET /api/v1/signals --- USDC
10 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/candles'
// 402 response (captured by monitor) · 4 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7C69323FC27E1CA39bed9822d9D74c9A22618eDC",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/candles",
      "tags": [
        "finance",
        "crypto",
        "coingecko",
        "market-data",
        "price-history"
      ],
      "iconUrl": "https://ai-data-marketplace-1042299154756.us-central1.run.app/favicon.svg",
      "mimeType": "application/json",
      "description": "Fetch recent cryptocurrency USD price observations from CoinGecko on each request.",
      "serviceName": "DopamineDesk AI Marketplace"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "ticker": "bitcoin"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "ticker": "bitcoin",
                "candles": [
                  {
                    "price": "64000.00",
                    "timestamp": "2026-08-02T00:00:00.000Z"
                  }
                ],
                "interval": "1d"
              },
              "source": "CoinGecko",
              "success": 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"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "ticker": {
                      "type": "string",
                      "description": "CoinGecko coin ID or supported alias such as bitcoin, btc, ethereum, eth, solana, or sol."
                    }
                  },
                  "additionalProperties": true
                }
              },
              "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": "0x7C69323FC27E1CA39bed9822d9D74c9A22618eDC",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/leads",
      "tags": [
        "b2b",
        "leads",
        "sales",
        "prospecting",
        "marketing"
      ],
      "iconUrl": "https://ai-data-marketplace-1042299154756.us-central1.run.app/favicon.svg",
      "mimeType": "application/json",
      "description": "Query current business-registration records directly from official Chicago and San Francisco open-data APIs. Results include source-dataset and source-record links; this product does not claim private emails or buyer intent.",
      "serviceName": "DopamineDesk AI Marketplace"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "city": "Chicago",
              "limit": 20,
              "query": "auto"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": [
                {
                  "name": "Example Auto Repair",
                  "owner": "Example LLC",
                  "address": "100 Example St",
                  "start_date": "2026-07-01",
                  "source_city": "Chicago",
                  "source_dataset": "City of Chicago Business Licenses"
                }
              ]
            }
          }
        },
        "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": {
                    "city": {
                      "type": "string",
                      "description": "Chicago or San Francisco. Omit to search both official sources."
                    },
                    "limit": {
                      "type": "integer",
                      "description": "Number of current registrations to return, from 1 to 50."
                    },
                    "query": {
                      "type": "string",
                      "description": "Case-insensitive keyword matched against available business name, owner, address, and activity fields."
                    }
                  },
                  "additionalProperties": true
                }
              },
              "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": "0x7C69323FC27E1CA39bed9822d9D74c9A22618eDC",
        "amount": "150000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/market_research",
      "tags": [
        "research",
        "business",
        "startups",
        "market"
      ],
      "iconUrl": "https://ai-data-marketplace-1042299154756.us-central1.run.app/favicon.svg",
      "mimeType": "application/json",
      "description": "Fetch current top Hacker News story titles as a lightweight technology trend pulse.",
      "serviceName": "DopamineDesk AI Marketplace"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "region": "Global",
              "industry": "Vertical Farming"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "industry": "Vertical Farming",
              "challenges": [
                "High energy costs",
                "Capital intensive setup"
              ],
              "key_drivers": [
                "Urbanization",
                "Climate change impact on traditional agriculture",
                "Advancements in LED efficiency"
              ],
              "cagr_percent": 24.5,
              "market_size_usd": "5.6 Billion (2025 est.)",
              "major_competitors": [
                "Bowery Farming",
                "Plenty",
                "AeroFarms (Restructured)"
              ]
            }
          }
        },
        "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": [
                    "industry"
                  ],
                  "properties": {
                    "region": {
                      "type": "string",
                      "description": "Geographic region (e.g., Global, NA, EMEA)."
                    },
                    "industry": {
                      "type": "string",
                      "description": "Specific industry or market segment."
                    }
                  },
                  "additionalProperties": true
                }
              },
              "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": "0x7C69323FC27E1CA39bed9822d9D74c9A22618eDC",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/contracts",
      "tags": [
        "government",
        "contracts",
        "b2b",
        "sam.gov",
        "spending"
      ],
      "iconUrl": "https://ai-data-marketplace-1042299154756.us-central1.run.app/favicon.svg",
      "mimeType": "application/json",
      "description": "Query 100 packaged USAspending.gov contract-award records with a live source link for every award ID.",
      "serviceName": "DopamineDesk AI Marketplace"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "agency": "Department of Defense",
              "vendor_name": "Space Exploration Technologies"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "awards": [
                {
                  "date": "2026-06-15",
                  "agency": "USAF",
                  "amount": 316000000,
                  "vendor": "Space Exploration Technologies Corp.",
                  "contract_id": "FA881121C0001",
                  "description": "National Security Space Launch"
                }
              ]
            }
          }
        },
        "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": {
                    "agency": {
                      "type": "string",
                      "description": "Federal agency name."
                    },
                    "vendor_name": {
                      "type": "string",
                      "description": "Name of the winning vendor."
                    }
                  },
                  "additionalProperties": true
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts share the 7d window selected here. Every series is also served as JSON at /api/v1/services/ai-data-marketplace/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
08-03 · uptime 100.0% · 79ms avg08-0308-03
7d UPTIME 100%
RESPONSE TIME
08-03 · 79ms avg08-03 · 79ms avg08-0308-03
AVG RESP 80ms
PRICE (captured 402, USD)
building price history ($0.08)

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

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)
VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A
  • 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 (7) · click to expand
TIME STATUS RESP
● OK 86ms
● OK 80ms
● OK 78ms
● OK 96ms
● OK 70ms
● OK 75ms
● OK 76ms
7 of 7 checks

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