x402 List

x402 Protocol Service Directory

httpay

Finance ✓ VERIFIED

Pay-per-call API marketplace — 300+ endpoints. Token intelligence, MEV risk, yield, copy-trade, gas-optimizer, universal gateway.

Pay from $0.02 to $0.04 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 0% 7D 0% 30D 0%
BASE URL https://httpay.xyz ENDPOINTS 3 NETWORK Base ASSET USDC MEMBER SINCE 2026-01-17 MONITORED SINCE 2026-04-15

ASSESSMENT

updated 5h ago

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

reliability 0%
uptime 24h
0%
uptime 7d
0%
uptime 30d
0%
uptime 90d
66.5%
response p95
563ms
avg response
232ms
total checks
7,287
compliance A (12/12)

12 of 12 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.02 to $0.04 (p77 in Finance)
price (min)
$0.02
price (max)
$0.04
category percentile (min)
p77 in Finance
category percentile (max)
p68 in Finance
endpoints / prices
2 / 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.

WHAT IT DOES

ai-derived

Provides token intelligence, DeFi yield intelligence, and MEV risk analysis for blockchain transactions conf 100%

category
crypto-analytics conf 100%
in
path and body
token-inteldefi-yieldmev-riskblockchaincryptofinance

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
POST /api/mev-risk MEV risk analysis --- USDC
GET /api/token-intel/{addr} Token intelligence $0.04 Base USDC
GET /api/yield-intel DeFi yield intelligence $0.02 Base USDC
3 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://httpay.xyz/api/token-intel/{addr}'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
  {
    "mpp": {
      "sdk": "npm install mppx",
      "docs": "https://mpp.dev/quickstart/client",
      "amount": "0.04",
      "method": "tempo",
      "currency": "0x20c0000000000000000000000000000000000000",
      "protocol": "Machine Payments Protocol",
      "recipient": "0x27a76f0fb8433D45B51769c6432e143061CD48F9",
      "currencyName": "pathUSD (Tempo blockchain)",
      "instructions": "Send Authorization: Payment <credential> header using mppx SDK or mppx CLI"
    },
    "demo": "Try this endpoint free: add ?demo=true to the URL (10 calls/IP/hour, no payment needed)",
    "error": "Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header)",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2"
        },
        "payTo": "0x5f5d6FcB315871c26F720dc6fEf17052dD984359",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://httpay.xyz/api/token-intel/%7Baddr%7D",
        "extensions": {
          "bazaar": {
            "info": {
              "input": {
                "type": "http",
                "method": "GET",
                "queryParams": {
                  "address": "{address}"
                }
              },
              "output": {
                "type": "json",
                "example": {
                  "description": "Aggregated token intelligence across Dexscreener, BaseScan, GoPlus, and GeckoTerminal with composite risk + confidence scoring."
                }
              }
            },
            "schema": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "input"
              ],
              "properties": {
                "input": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "type": "string",
                      "const": "http"
                    },
                    "method": {
                      "enum": [
                        "GET",
                        "HEAD",
                        "DELETE"
                      ],
                      "type": "string"
                    },
                    "queryParams": {
                      "type": "object",
                      "properties": {
                        "address": {
                          "type": "string",
                          "description": "address"
                        }
                      }
                    }
                  },
                  "additionalProperties": false
                },
                "output": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "type": "string"
                    },
                    "example": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        },
        "description": "Aggregated token intelligence across Dexscreener, BaseScan, GoPlus, and GeckoTerminal with composite risk + confidence scoring.",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "address": "{address}"
            },
            "discoverable": true
          },
          "output": {
            "type": "json",
            "example": {
              "description": "Aggregated token intelligence across Dexscreener, BaseScan, GoPlus, and GeckoTerminal with composite risk + confidence scoring."
            }
          }
        },
        "maxAmountRequired": "40000",
        "maxTimeoutSeconds": 60
      }
    ],
    "quickstart": {
      "mcp": "npx @httpay/mcp — add to Claude Desktop or Cursor, payments handled automatically",
      "npm": "npm install x402-fetch — then use wrapFetch(fetch, {privateKey: YOUR_KEY})",
      "demo": "Add ?demo=true to any endpoint for free preview (10 calls/IP/hour)"
    },
    "x402Version": 1
  },
  {
    "mpp": {
      "sdk": "npm install mppx",
      "docs": "https://mpp.dev/quickstart/client",
      "amount": "0.02",
      "method": "tempo",
      "currency": "0x20c0000000000000000000000000000000000000",
      "protocol": "Machine Payments Protocol",
      "recipient": "0x27a76f0fb8433D45B51769c6432e143061CD48F9",
      "currencyName": "pathUSD (Tempo blockchain)",
      "instructions": "Send Authorization: Payment <credential> header using mppx SDK or mppx CLI"
    },
    "demo": "Try this endpoint free: add ?demo=true to the URL (10 calls/IP/hour, no payment needed)",
    "error": "Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header)",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2"
        },
        "payTo": "0x5f5d6FcB315871c26F720dc6fEf17052dD984359",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://httpay.xyz/api/yield-intel",
        "extensions": {
          "bazaar": {
            "info": {
              "input": {
                "type": "http",
                "method": "GET",
                "queryParams": {}
              },
              "output": {
                "type": "json",
                "example": {
                  "description": "Real DeFi yield intelligence via DefiLlama. Enriched with gas-adjusted net APY, protocol risk tier (A-D), and IL estimates. Params: ?chain=base&minTvl=100000&minApy=5. No AI hallucinations — all data from DefiLlama pools API."
                }
              }
            },
            "schema": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "input"
              ],
              "properties": {
                "input": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "type": "string",
                      "const": "http"
                    },
                    "method": {
                      "enum": [
                        "GET",
                        "HEAD",
                        "DELETE"
                      ],
                      "type": "string"
                    },
                    "queryParams": {
                      "type": "object",
                      "properties": {}
                    }
                  },
                  "additionalProperties": false
                },
                "output": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "type": "string"
                    },
                    "example": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        },
        "description": "Real DeFi yield intelligence via DefiLlama. Enriched with gas-adjusted net APY, protocol risk tier (A-D), and IL estimates. Params: ?chain=base&minTvl=100000&minApy=5. No AI hallucinations — all data from DefiLlama pools API.",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "GET",
            "discoverable": true
          },
          "output": {
            "type": "json",
            "example": {
              "description": "Real DeFi yield intelligence via DefiLlama. Enriched with gas-adjusted net APY, protocol risk tier (A-D), and IL estimates. Params: ?chain=base&minTvl=100000&minApy=5. No AI hallucinations — all data from DefiLlama pools API."
            }
          }
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 60
      }
    ],
    "quickstart": {
      "mcp": "npx @httpay/mcp — add to Claude Desktop or Cursor, payments handled automatically",
      "npm": "npm install x402-fetch — then use wrapFetch(fetch, {privateKey: YOUR_KEY})",
      "demo": "Add ?demo=true to any endpoint for free preview (10 calls/IP/hour)"
    },
    "x402Version": 1
  }
]

UPTIME

06-15 · uptime 0.0%06-16 · uptime 0.0%06-17 · uptime 0.0%06-18 · uptime 0.0%06-19 · uptime 0.0%06-20 · uptime 0.0%06-21 · uptime 0.0%06-22 · uptime 0.0%06-23 · uptime 0.0%06-24 · uptime 0.0%06-25 · uptime 0.0%06-26 · uptime 0.0%06-27 · uptime 0.0%06-28 · uptime 0.0%06-29 · uptime 0.0%06-30 · uptime 0.0%07-01 · uptime 0.0%07-02 · uptime 0.0%07-03 · uptime 0.0%07-04 · uptime 0.0%07-05 · uptime 0.0%07-06 · uptime 0.0%07-07 · uptime 0.0%07-08 · uptime 0.0%07-09 · uptime 0.0%07-10 · uptime 0.0%07-11 · uptime 0.0%07-12 · uptime 0.0%07-13 · uptime 0.0%07-14 · uptime 0.0%06-15 · uptime 0.0%06-16 · uptime 0.0%06-17 · uptime 0.0%06-18 · uptime 0.0%06-19 · uptime 0.0%06-20 · uptime 0.0%06-21 · uptime 0.0%06-22 · uptime 0.0%06-23 · uptime 0.0%06-24 · uptime 0.0%06-25 · uptime 0.0%06-26 · uptime 0.0%06-27 · uptime 0.0%06-28 · uptime 0.0%06-29 · uptime 0.0%06-30 · uptime 0.0%07-01 · uptime 0.0%07-02 · uptime 0.0%07-03 · uptime 0.0%07-04 · uptime 0.0%07-05 · uptime 0.0%07-06 · uptime 0.0%07-07 · uptime 0.0%07-08 · uptime 0.0%07-09 · uptime 0.0%07-10 · uptime 0.0%07-11 · uptime 0.0%07-12 · uptime 0.0%07-13 · uptime 0.0%07-14 · uptime 0.0%06-1507-14
RESPONSE TIME
no data
30d UPTIME 0%
UPTIME 30D 0%
AVG RESP 232ms
TOTAL CHECKS 7,334

RECENT CHECKS

TIME STATUS RESP
○ DOWN 226ms
○ DOWN 246ms
○ DOWN 189ms
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○ DOWN 340ms
○ DOWN 294ms

OVER TIME

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

PRICE (captured 402, USD)
06-14 · $0.0307-14 · $0.03$0.0306-1407-14

Median across 2 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-13 uptime: 2.2% compliance: 100% checks07-14 uptime: 0.0% compliance: 100% checksuptimecompliance07-1307-14
VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

12/12 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
  • response mimeType declared
  • served over HTTPS

EMBED THIS BADGE

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

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status
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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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