x402 List

x402 Protocol Service Directory

●

BlockRun

AI imported

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it

x402 gateway giving pay-per-call access to LLM inference, web search, prediction market data and crypto data, paid in USDC on Base with no account or API key.

Pay from $0.004 to $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 100% │ 7D 100% │ 30D 100%
BASE URL https://blockrun.ai │ ENDPOINTS 10 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-20 │ MONITORED SINCE 2026-07-20

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
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
212ms
avg response
129ms
total checks
163
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.004 to $0.01 (p31 in AI)
price (min)
$0.004
price (max)
$0.01
category percentile (min)
p31 in AI
category percentile (max)
p35 in AI
endpoints / prices
10 / 4
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.

traction $164641.82 30d · 1238 buyers
volume 30d
$164641.82
buyers 30d
1238
settlements 30d
12,700,070
last settlement
2026-07-22
top buyer share
99% of 30d volume
trend 7d vs 30d
0.80x the 30d daily rate
networks
eip155:8453

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

BlockRun provides an AI gateway with endpoints for web search, market data, and AI-powered content generation.

category
ai-gateway
in
body
auth
none
ai-gatewayweb-searchmarket-datacontent-generation

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/defillama/chains $0.007 Base USDC
POST /api/v1/exa/answer $0.01 Base USDC
POST /api/v1/exa/contents $0.004 Base USDC
POST /api/v1/exa/search $0.01 Base USDC
GET /api/v1/pm/kalshi/markets $0.0095 Base USDC
GET /api/v1/pm/markets $0.0095 Base USDC
GET /api/v1/pm/markets/search $0.0095 Base USDC
GET /api/v1/pm/polymarket/crypto-updown $0.0095 Base USDC
GET /api/v1/pm/polymarket/events $0.0095 Base USDC
GET /api/v1/pm/polymarket/markets $0.0095 Base USDC
10 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://blockrun.ai/api/v1/defillama/chains'
// 402 response (captured by monitor) · 10 payloads · click to expand 
[
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
        "amount": "7000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/defillama/chains",
      "mimeType": "application/json",
      "description": "TVL by chain — every chain DefiLlama tracks with current TVL totals."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/kalshi/markets",
      "mimeType": "application/json",
      "description": "Query Kalshi markets with filtering, sorting, and pagination"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/markets",
      "mimeType": "application/json",
      "description": "List canonical market/question containers with cross-venue Predexon IDs"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/markets/search",
      "mimeType": "application/json",
      "description": "Search markets across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun in a single call"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/polymarket/crypto-updown",
      "mimeType": "application/json",
      "description": "List crypto up/down prediction markets"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/polymarket/events",
      "mimeType": "application/json",
      "description": "List Polymarket events with filtering and sorting"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6E007731870EDe419CfB31889Cd5C4493CEcb04c",
        "amount": "9500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/pm/polymarket/markets",
      "mimeType": "application/json",
      "description": "Query Polymarket markets with filtering, sorting, and pagination"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "bodyFields": {},
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "data": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
        "amount": "12000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/exa/answer",
      "mimeType": "application/json",
      "description": "Get an AI-generated answer to a question grounded in live web search results."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "POST",
            "bodyFields": {
              "query": {
                "type": "string",
                "description": "Question to answer (grounded in live web search)."
              }
            },
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "query"
                  ],
                  "properties": {
                    "query": {
                      "type": "string",
                      "description": "Question to answer (grounded in live web search)."
                    }
                  }
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "results": {
                      "type": "array"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
        "amount": "4000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/exa/contents",
      "mimeType": "application/json",
      "description": "Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "POST",
            "bodyFields": {
              "urls": {
                "type": "array",
                "description": "URLs to fetch content from (1–100). Total cost = urls.length × $0.002."
              }
            },
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "urls"
                  ],
                  "properties": {
                    "urls": {
                      "type": "array",
                      "description": "URLs to fetch content from (1–100). Total cost = urls.length × $0.002."
                    }
                  }
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "results": {
                      "type": "array"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
        "amount": "12000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://blockrun.ai/api/v1/exa/search",
      "mimeType": "application/json",
      "description": "Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "POST",
            "bodyFields": {
              "query": {
                "type": "string",
                "description": "Natural-language search query."
              },
              "category": {
                "type": "string",
                "description": "Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report."
              },
              "numResults": {
                "type": "number",
                "description": "Number of results to return (default 10, max 100)."
              },
              "excludeDomains": {
                "type": "array",
                "description": "Exclude these domains from results."
              },
              "includeDomains": {
                "type": "array",
                "description": "Restrict results to these domains."
              }
            },
            "discoverable": true
          },
          "output": null
        },
        "schema": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "query"
                  ],
                  "properties": {
                    "query": {
                      "type": "string",
                      "description": "Natural-language search query."
                    },
                    "category": {
                      "type": "string",
                      "description": "Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report."
                    },
                    "numResults": {
                      "type": "number",
                      "description": "Number of results to return (default 10, max 100)."
                    },
                    "excludeDomains": {
                      "type": "array",
                      "description": "Exclude these domains from results."
                    },
                    "includeDomains": {
                      "type": "array",
                      "description": "Restrict results to these domains."
                    }
                  }
                }
              }
            },
            "output": {
              "type": "object",
              "properties": {
                "example": {
                  "type": "object",
                  "properties": {
                    "results": {
                      "type": "array"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

UPTIME

07-20 · uptime 100.0% · 156ms avg07-21 · uptime 100.0% · 135ms avg07-22 · uptime 100.0% · 103ms avg07-2007-22
RESPONSE TIME
07-20 · 156ms avg07-20 · 156ms avg07-21 · 135ms avg07-21 · 135ms avg07-22 · 103ms avg07-22 · 103ms avg07-2007-22
30d UPTIME 100%
UPTIME 30D 100%
AVG RESP 129ms
TOTAL CHECKS 171

RECENT CHECKS

TIME STATUS RESP
● OK 144ms
● OK 173ms
● OK 141ms
● OK 112ms
● OK 53ms
● OK 112ms
● OK 111ms
● OK 101ms
● OK 126ms
● OK 109ms
● OK 145ms
● OK 137ms
● OK 112ms
● OK 122ms
● OK 160ms
● OK 149ms
● OK 118ms
● OK 137ms
18 of 171 checks

OVER TIME

All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/blockrun/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.

PRICE (captured 402, USD)
07-20 · $0.009507-22 · $0.0095$0.009507-2007-22

Median across 10 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-20 uptime: 100.0% compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checksuptimecompliance07-2007-22
VOLUME (on-chain settlement, USD)
06-23 · $4.5k06-24 · $6.1k06-25 · $7.6k06-26 · $6.8k06-27 · $4.8k06-28 · $4.2k06-29 · $6.1k06-30 · $3.4k07-01 · $3.2k07-02 · $2.5k07-03 · $3.0k07-04 · $2.5k07-05 · $2.4k07-06 · $4.3k07-07 · $4.8k07-08 · $9.2k07-09 · $12.8k07-10 · $7.2k07-11 · $2.5k07-12 · $4.8k07-13 · $17.5k07-14 · $8.0k07-15 · $5.7k07-16 · $7.7k07-17 · $5.2k07-18 · $2.6k07-19 · $2.4k07-20 · $3.4k07-21 · $4.7k07-22 · $1.8kpeak $17.5k06-2307-22
DISTINCT BUYERS
06-23 · 121 buyers06-24 · 150 buyers06-25 · 113 buyers06-26 · 78 buyers06-27 · 61 buyers06-28 · 138 buyers06-29 · 186 buyers06-30 · 137 buyers07-01 · 118 buyers07-02 · 121 buyers07-03 · 145 buyers07-04 · 116 buyers07-05 · 128 buyers07-06 · 182 buyers07-07 · 121 buyers07-08 · 170 buyers07-09 · 162 buyers07-10 · 119 buyers07-11 · 143 buyers07-12 · 165 buyers07-13 · 141 buyers07-14 · 154 buyers07-15 · 126 buyers07-16 · 70 buyers07-17 · 85 buyers07-18 · 140 buyers07-19 · 136 buyers07-20 · 130 buyers07-21 · 95 buyers07-22 · 85 buyerspeak 186 buyers06-2307-22

COMPLIANCE

11/11 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

EMBED THIS BADGE

Show that BlockRun is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

BlockRun listed on x402-list
status
BlockRun uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/blockrun?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/blockrun.svg" alt="BlockRun listed on x402-list" height="28">
</a>
// Markdown
[![BlockRun on x402-list](https://x402-list.com/badge/blockrun.svg)](https://x402-list.com/services/blockrun?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/blockrun?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/blockrun.svg?data=uptime" alt="BlockRun uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

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