x402 List

x402 Protocol Service Directory

●

Horizon Pulse

Data PAYMENT-READY

payment-ready until 2026-10-05

Pay-per-call APIs for AI agents over x402 v2 on Base USDC (Coinbase CDP facilitator): crypto market pulse, technical signals, DeFi yields, wallet portfolio, gas and funding rates, plus web fetch-to-markdown, SSRF-safe HTTP proxy, and URL/HTML structured extraction.

Pay from $0.005 to $0.04 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-09-28 · no on-chain settlement recorded yet

BASE URL https://horizonpulse.dev │ WEBSITE https://horizonpulse.dev │ ENDPOINTS 9 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-09-28 │ MONITORED SINCE 2026-09-28

VERDICT

ranking generation 3

solid 87/100 #68 of 331 in Data by measured score

What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 202ms response p95, x402 compliance 14 of 14, $0.005 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

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.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 331 listings, this one among them. That set is wider than the 331 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

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.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
SniperX•x402 strong 95 100% $298.51
glim.sh strong 94 100% $25.61
cn402 strong 93 100% $34.89
x402node strong 93 100% $34.89
twit.sh solid 92 100% $27.78
5 of 330 other ranked services in Data · see the whole category

ASSESSMENT

updated 1h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime · latest daily rollup
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
202ms
avg response
202ms
total checks
1

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 $0.005 to $0.04 (p41 in Data)
price (min)
$0.005
price (max)
$0.04
category percentile (min)
p41 in Data
category percentile (max)
p51 in Data
endpoints / prices
9 / 5
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
9d
registrar
CloudFlare, Inc.
hosting
custom
domain created
2026-09-19

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
measured since
--- (start of our harvest window)
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
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 part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /api/extract $0.015 Base USDC header
GET /api/fetch $0.02 Base USDC header
GET /api/funding $0.01 Base USDC header
GET /api/gas $0.01 Base USDC header
GET /api/http $0.01 Base USDC header
GET /api/portfolio $0.04 Base USDC header
GET /api/pulse $0.005 Base USDC header
GET /api/signals $0.015 Base USDC header
GET /api/yield $0.02 Base USDC header
9 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://horizonpulse.dev/api/extract'
// 402 response (captured by monitor) · 9 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/pulse",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "BTC/ETH/SOL spot prices with momentum, overall sentiment, and signal from CoinGecko",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "assets": {
                "BTC": {
                  "momentum": "neutral",
                  "priceUsd": 0,
                  "change24hPct": 0
                }
              },
              "overall": {
                "signal": "hold",
                "momentum": "neutral",
                "sentiment": "neutral"
              }
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse market snapshot"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "15000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/signals",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "RSI/MACD/Bollinger from CoinGecko OHLC plus OKX perpetual funding rates",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "assets": {
                "BTC": {
                  "macd": {
                    "macd": 0,
                    "signal": 0,
                    "histogram": 0
                  },
                  "rsi14": 50,
                  "bollinger": {
                    "lower": 0,
                    "upper": 0,
                    "middle": 0
                  },
                  "fundingRate": 0
                }
              },
              "methodology": "CoinGecko OHLC + OKX funding"
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse technical signals"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/yield",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Ranked DeFi yield pools from DefiLlama (TVL >= $10M, prefer stablecoin/single-asset)",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "pools": [
                {
                  "apy": 0,
                  "rank": 1,
                  "chain": "Ethereum",
                  "symbol": "USDC",
                  "tvlUsd": 0,
                  "project": "aave-v3",
                  "preferenceTier": 2
                }
              ],
              "methodology": "DefiLlama yields; TVL>=$10M; prefer stablecoin/single"
            }
          }
        },
        "schema": {
          "type": "object",
          "$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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse yield rankings"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/portfolio",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "On-chain portfolio for one EVM address (?address=0x...) on Base + Ethereum: native ETH, USDC, WETH, WBTC/cbBTC, DAI; rule-based risk + rebalance suggestions",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "address": "0x..."
            }
          },
          "output": {
            "type": "json",
            "example": {
              "risk": {
                "band": "moderate",
                "score": 0
              },
              "totals": {
                "valueUsd": 0,
                "stablecoinShare": 0
              },
              "address": "0x...",
              "methodology": {},
              "suggestions": []
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "address": {
                      "type": "string",
                      "description": "EVM address (0x + 40 hex) required as query param"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse portfolio snapshot"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/gas",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Live Base + Ethereum gas fees via eth_feeHistory / eth_gasPrice: baseFee, priority, suggested maxFee, timingHint (cheap/normal/expensive), optional transfer USD cost",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "ethUsd": 0,
              "networks": [
                {
                  "network": "base",
                  "timingHint": "normal",
                  "baseFeeGwei": "0",
                  "priorityFeeGwei": "0",
                  "suggestedMaxFeeGwei": "0"
                }
              ],
              "methodology": "eth_feeHistory + optional CoinGecko ETH USD"
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse gas snapshot"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/funding",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Live OKX perpetual funding rates for BTC/ETH/SOL with optional rule-based crowding hint (sign/magnitude)",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "assets": {
                "BTC": {
                  "instId": "BTC-USDT-SWAP",
                  "crowding": {
                    "side": "neutral",
                    "level": "quiet"
                  },
                  "fundingRate": 0
                }
              },
              "methodology": "OKX public funding-rate; crowding = rules only"
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse funding snapshot"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/fetch",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Fetch a public http(s) URL (?url=...) and return best-effort clean text/markdown; SSRF-safe with size/time caps",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "format": "markdown",
              "content": "# Example\n\nClean text…",
              "finalUrl": "https://example.com",
              "truncated": false
            }
          }
        },
        "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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "Absolute http(s) URL to fetch (required). Private/localhost blocked; ~200KB / 8s caps."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse URL fetch (clean text)"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/http",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Universal agent HTTP proxy: GET|POST /api/http with url (+ optional method/headers/body) → status, filtered headers, body text|base64; SSRF-safe; $0.01 for volume (fetch remains $0.02 clean-text)",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com",
              "method": "GET"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "body": "hello",
              "status": 200,
              "headers": {
                "content-type": "text/plain"
              },
              "elapsedMs": 42,
              "contentType": "text/plain",
              "bodyEncoding": "text"
            }
          }
        },
        "schema": {
          "type": "object",
          "$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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "Absolute http(s) URL (required). Private/localhost blocked."
                    },
                    "body": {
                      "type": "string",
                      "description": "Optional body for POST/PUT/PATCH (via POST /api/http JSON). Size-capped."
                    },
                    "method": {
                      "type": "string",
                      "description": "Upstream method: GET (default) | POST | HEAD | PUT | PATCH | DELETE"
                    },
                    "headers": {
                      "type": "object",
                      "description": "Optional allowlisted outbound headers (no Cookie / hop-by-hop). On GET pass as JSON string query param."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse universal HTTP proxy result"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
        "amount": "15000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://horizonpulse.dev/api/extract",
      "tags": [
        "web-fetch",
        "http-proxy",
        "html-extract",
        "crypto",
        "market-data"
      ],
      "iconUrl": "https://horizonpulse.dev/icon.png",
      "mimeType": "application/json",
      "description": "Extract structured page fields from a public URL or provided HTML (title, description, canonical, links, images, headings, json-ld, text sample); SSRF-safe; $0.015 between http ($0.01) and fetch ($0.02)",
      "serviceName": "Horizon Pulse"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "url": "https://example.com",
              "links": [
                {
                  "href": "https://example.com/",
                  "text": "More information"
                }
              ],
              "title": "Example Domain",
              "images": [
                {
                  "alt": "Logo",
                  "src": "https://example.com/og.png"
                }
              ],
              "jsonLd": [],
              "headings": [
                {
                  "text": "Example Domain",
                  "level": 1
                }
              ],
              "language": "en",
              "canonical": "https://example.com/",
              "elapsedMs": 42,
              "textSample": "Example Domain…",
              "description": "Example description"
            }
          }
        },
        "schema": {
          "type": "object",
          "$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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "Absolute http(s) URL to fetch and extract (optional if html provided). Private/localhost blocked."
                    },
                    "html": {
                      "type": "string",
                      "description": "Optional raw HTML to parse (size-capped). Prefer POST JSON when sending html. If both url and html are sent, html is parsed and url is echoed."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "description": "Horizon Pulse structured HTML extract result"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/horizon-pulse/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
09-28 · uptime 100.0% · 172ms avg09-2809-28
30D UPTIME 100%
RESPONSE TIME
09-28 · 172ms avg09-28 · 172ms avg09-2809-28
AVG RESP 155ms
PRICE (captured 402, USD)
building price history ($0.015)

Median across 9 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

VOLUME (on-chain settlement, USD)
09-18 · $0.0109-19 · $0.0109-20 · $0.1009-21 · $0.0109-23 · $0.0509-24 · $0.0509-28 · $0.03peak $0.1009-1809-28
DISTINCT BUYERS
09-18 · 1 buyer09-19 · 1 buyer09-20 · 1 buyer09-21 · 1 buyer09-23 · 1 buyer09-24 · 1 buyer09-28 · 2 buyerspeak 2 buyers09-1809-28

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-28 · last up 2026-09-28

  • 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 (5) live · click to expand
TIME STATUS RESP CAUSE
● OK 128ms
● OK 130ms
● OK 201ms
● OK 114ms
● OK 202ms

EMBED THIS BADGE

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

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

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/horizon-pulse/update.