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payment-ready until 2026-11-04

4 pay-per-call token verdict endpoints for Base and Ethereum mainnet tokens: previews at $0.002 and full verdicts at $0.01 per call, paid in USDC over x402 on Base, Polygon or Arbitrum.

arysphere.com ↗

Call it x402 v2

x402 v2

Base URL
https://api.arysphere.com
Payment
x402 v2, header channel
$ curl -i 'https://api.arysphere.com/v1/ventures/x402_q_verdict_v1/base_token_verdict_preview'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 4 paid routes on api.arysphere.com

GET/v1/ventures/x402_q_verdict_v1/base_token_verdict_previewArbitrum One+Base+Pol$0.002since 10-28
GET/v1/ventures/x402_q_verdict_v1/base_token_verdict_v3Arbitrum One+Base+Pol$0.01since 10-28
GET/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdictArbitrum One+Base+Pol$0.01since 10-28
GET/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdict_previewArbitrum One+Base+Pol$0.002since 10-28

Prices as captured in the 402 response: median $0.006 across the 4 endpoints, unchanged since first capture.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/v1/ventures/x402_q_verdict_v1/base_token_verdict_previewToken Quick Check: Base contract facts -- name, supply, owner, code. Not financial advice. Returns: a token verdict preview on one token contract: the contract facts the full verdict reads -- code size, name, symbol, decimals, total supply, owner(), proxy slots -- read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call.$0.002Arbitrum One+Base+PolUSDC, USD Coinheadersince 10-28
GET/v1/ventures/x402_q_verdict_v1/base_token_verdict_v3Base ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice. Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD price and depth. No holders, no safety or legitimacy call.$0.01Arbitrum One+Base+PolUSDC, USD Coinheadersince 10-28
GET/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdictEthereum mainnet ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice. Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD price and depth. No holders, no safety or legitimacy call.$0.01Arbitrum One+Base+PolUSDC, USD Coinheadersince 10-28
GET/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdict_previewToken Quick Check: Ethereum mainnet contract facts -- name, supply, owner, code. Not financial advice. Returns: a token verdict preview on one token contract: the contract facts the full verdict reads -- code size, name, symbol, decimals, total supply, owner(), proxy slots -- read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call.$0.002Arbitrum One+Base+PolUSDC, USD Coinheadersince 10-28

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

First of 4 payloads captured by the monitor.

158 lines, scroll inside

{
  "error": "payment required: retry with a PAYMENT-SIGNATURE header built from one of `accepts`",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.arysphere.com/v1/ventures/x402_q_verdict_v1/base_token_verdict_preview",
    "tags": [
      "token",
      "verdict",
      "preview",
      "contract",
      "base"
    ],
    "mimeType": "application/json",
    "description": "Token Quick Check: Base contract facts -- name, supply, owner, code. Not financial advice.  Returns: a token verdict preview on one token contract: the contract facts the full verdict reads -- code size, name, symbol, decimals, total supply, owner(), proxy slots -- read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call.",
    "serviceName": "Base Token Verdict Preview"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "note": "A preview: the contract's own state read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call. Not financial advice.",
            "chain": "base",
            "cached": false,
            "method": "preview",
            "result": {
              "facts": {
                "name": "USD Coin",
                "owner": "0x3abd6f64a422225e61e435bae41db12096106df7",
                "symbol": "USDC",
                "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "decimals": 6,
                "code_bytes": 1852,
                "proxy_slot": "zeppelinos",
                "is_contract": true,
                "erc20_shaped": true,
                "total_supply": "4302380095.850094",
                "owner_function": true,
                "owner_renounced": false,
                "total_supply_raw": "4302380095850094",
                "upgradeable_proxy": true,
                "proxy_slots_checked": [
                  "eip1967",
                  "eip1967_beacon"
                ],
                "proxy_implementation": "0x2ce6311ddae708829bc0784c967b7d77d19fd779"
              },
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "service": "x402_q_verdict_v1.base_token_verdict_preview"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "token": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "description": "token contract, 0x + 40 hex"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (3)

Captured payload 2 of 4

{
  "error": "payment required: retry with a PAYMENT-SIGNATURE header built from one of `accepts`",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.arysphere.com/v1/ventures/x402_q_verdict_v1/base_token_verdict_v3",
    "tags": [
      "token",
      "verdict",
      "contract",
      "erc20",
      "base"
    ],
    "mimeType": "application/json",
    "description": "Base ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice.  Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD price and depth. No holders, no safety or legitimacy call.",
    "serviceName": "Base Token Verdict"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "chain": "base",
            "grade": "COOKED",
            "cached": false,
            "method": "verdict",
            "result": {
              "facts": {
                "name": "USD Coin",
                "owner": "0x3abd6f64a422225e61e435bae41db12096106df7",
                "symbol": "USDC",
                "decimals": 6,
                "proxy_slot": "zeppelinos",
                "is_contract": true,
                "erc20_shaped": true,
                "owner_renounced": false,
                "upgradeable_proxy": true
              },
              "grade": "COOKED",
              "roast": "USDC: COOKED. Proxy (zeppelinos slot set); a live owner holds the keys.",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "market": {
                "dex": "uniswap_v3",
                "eth_usd": 2432.8015,
                "fee_tiers": [
                  500,
                  3000,
                  10000
                ],
                "price_usd": 1.00209,
                "rpc_calls": 2,
                "depth_rule": "pool_depth from the deepest pool's quote-side reserve in USD: <$1k none_or_dust, <$100k thin, <$5M moderate, else deep. A description of on-chain state, not advice.",
                "pool_depth": "deep",
                "pools_found": 3,
                "deepest_pool": {
                  "fee": 3000,
                  "pool": "0x6c561b446416e1a00e8e93e221854d6ea4171372",
                  "quote": "WETH",
                  "price_usd": 1.00209,
                  "token_reserve": 58770808.350535,
                  "quote_reserve_usd": 87721037.3
                },
                "quote_assets": [
                  "WETH",
                  "USDC"
                ],
                "eth_usd_source": "chainlink ETH/USD 0x71041dddad3595f9ced3dccfbe3d1f4b0a16bb70",
                "quote_reserve_usd": 87721037.3
              },
              "one_liner": "USDC is COOKED",
              "disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price.",
              "grade_rule": "RADIOACTIVE: not a contract, or not ERC-20 shaped (no decimals/totalSupply). COOKED: a proxy implementation slot is set (EIP-1967, its beacon, or ZeppelinOS) AND owner() names a live owner. MID: either one. BASED: neither found.",
              "written_by": "template"
            },
            "service": "x402_bazaar_token_verdict_v2.base_token_verdict_v3",
            "disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price."
          }
        }
      },
      "schema": {
        "type": "object",
        "$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",
                "properties": {
                  "token": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "description": "token contract, 0x + 40 hex"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 4

{
  "error": "payment required: retry with a PAYMENT-SIGNATURE header built from one of `accepts`",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.arysphere.com/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdict_preview",
    "tags": [
      "token",
      "verdict",
      "preview",
      "contract",
      "ethereum"
    ],
    "mimeType": "application/json",
    "description": "Token Quick Check: Ethereum mainnet contract facts -- name, supply, owner, code. Not financial advice.  Returns: a token verdict preview on one token contract: the contract facts the full verdict reads -- code size, name, symbol, decimals, total supply, owner(), proxy slots -- read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call.",
    "serviceName": "Ethereum Token Verdict Preview"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "token": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "note": "A preview: the contract's own state read from the chain. No grade, no model, no pool price, no holders, no safety or legitimacy call. Not financial advice.",
            "chain": "ethereum",
            "cached": false,
            "method": "preview",
            "result": {
              "facts": {
                "name": "Tether USD",
                "owner": "0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828",
                "symbol": "USDT",
                "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
                "decimals": 6,
                "code_bytes": 11075,
                "proxy_slot": null,
                "is_contract": true,
                "erc20_shaped": true,
                "total_supply": "88301265725.970534",
                "owner_function": true,
                "owner_renounced": false,
                "total_supply_raw": "88301265725970534",
                "upgradeable_proxy": false,
                "proxy_slots_checked": [
                  "eip1967",
                  "eip1967_beacon"
                ],
                "proxy_implementation": null
              },
              "token": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
            },
            "service": "x402_q_verdict_v1.eth_mainnet_token_verdict_preview"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "token": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "description": "token contract, 0x + 40 hex"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 4

{
  "error": "payment required: retry with a PAYMENT-SIGNATURE header built from one of `accepts`",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x693e82a3745Ec21C96aA0010e0A1e5171C9cbD39",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.arysphere.com/v1/ventures/x402_q_verdict_v1/eth_mainnet_token_verdict",
    "tags": [
      "token",
      "verdict",
      "contract",
      "erc20",
      "ethereum"
    ],
    "mimeType": "application/json",
    "description": "Ethereum mainnet ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice.  Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD price and depth. No holders, no safety or legitimacy call.",
    "serviceName": "Ethereum Token Verdict"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "token": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "chain": "ethereum",
            "grade": "MID",
            "cached": false,
            "method": "verdict",
            "result": {
              "facts": {
                "name": "Tether USD",
                "owner": "0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828",
                "symbol": "USDT",
                "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
                "decimals": 6,
                "code_bytes": 11075,
                "proxy_slot": null,
                "is_contract": true,
                "erc20_shaped": true,
                "total_supply": "88301265725.970534",
                "owner_function": true,
                "owner_renounced": false,
                "total_supply_raw": "88301265725970534",
                "upgradeable_proxy": false,
                "proxy_slots_checked": [
                  "eip1967",
                  "eip1967_beacon"
                ],
                "proxy_implementation": null
              },
              "grade": "MID",
              "roast": "USDT: MID. No proxy slot set among those checked; a live owner holds the keys.",
              "token": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
              "market": {
                "dex": "uniswap_v3",
                "eth_usd": 2320.82077765,
                "fee_tiers": [
                  500,
                  3000
                ],
                "price_usd": 0.999055,
                "rpc_calls": 2,
                "depth_rule": "pool_depth from the deepest pool's quote-side reserve in USD: <$1k none_or_dust, <$100k thin, <$5M moderate, else deep. A description of on-chain state, not advice.",
                "pool_depth": "deep",
                "pools_found": 6,
                "deepest_pool": {
                  "fee": 3000,
                  "pool": "0x4e68ccd3e89f51c3074ca5072bbac773960dfa36",
                  "quote": "WETH",
                  "price_usd": 0.999055,
                  "token_reserve": 23042841.153811,
                  "quote_reserve_usd": 65101393.24
                },
                "quote_assets": [
                  "WETH",
                  "USDC"
                ],
                "eth_usd_source": "chainlink ETH/USD 0x5f4ec3df9cbd43714fe2740f5e3616155c5b8419",
                "quote_reserve_usd": 65101393.24
              },
              "one_liner": "USDT is MID",
              "disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price.",
              "grade_rule": "RADIOACTIVE: not a contract, or not ERC-20 shaped (no decimals/totalSupply). COOKED: a proxy implementation slot is set (EIP-1967, its beacon, or ZeppelinOS) AND owner() names a live owner. MID: either one. BASED: neither found.",
              "written_by": "template"
            },
            "service": "x402_q_verdict_v1.eth_mainnet_token_verdict",
            "disclaimer": "Entertainment, not financial advice. Reads the contract and its deepest Uniswap V3 pool (spot price, quote-side depth): not holders, locks or future price."
          }
        }
      },
      "schema": {
        "type": "object",
        "$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",
                "properties": {
                  "token": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "description": "token contract, 0x + 40 hex"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

98/100 Strong

#2 of 211 in AI. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime since 10-28
Compliance
A 14/14 checks pass
Price
$0.002 to $0.01 p23 in AI
Risk
clean no risk flag
Traction
---
14/14 compliance checks
  • 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

402 terms unchanged since 2026-10-28. Last up 2026-10-28.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 270ms response p95, x402 compliance 14 of 14, $0.002 price against the category. 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.

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.

It is a score inside AI, 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 211 listings, this one among them: the same 211 the position above is counted against. When the two differ, the field is the wider one, 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.

All measured facts

What it does

4 pay-per-call token verdict endpoints for Base and Ethereum mainnet tokens: previews at $0.002 and full verdicts at $0.01 per call, paid in USDC over x402 on Base, Polygon or Arbitrum. Verdicts describe a contract's on-chain state; they are not financial advice.

Arysphere is a listed x402 AI API. Captured payment terms name Arbitrum One, Base, Polygon. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-29 to 2026-10-28 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · AI

uptime · latest daily rollup
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
270ms
avg response
270ms
total checks
1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min)
$0.002
price (max)
$0.01
category percentile (min)
p23 in AI
category percentile (max)
p25 in AI
endpoints / prices
4 / 2
model
tiered
stability
100%

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
11d
registrar
Cloudflare, Inc.
hosting
custom
domain created
2026-10-16

Identity facts, not a risk score.

On-chain traction has not been assessed for this service yet.

member since
2026-10-28
Recent checks
Latest 9 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402317ms4
Online402291ms4
Online402313ms4
Online402433ms4
Online402298ms4
Online402221ms4
Online402324ms4
Online402332ms4
Online402270ms4

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume

On-chain traction has not been assessed for this service yet.

Uptime no completed-day data
Uptime
no completed-day data

On-chain traction has not been assessed for this service yet.

More charts
Response time daily average, ms min 311ms, avg 311ms, max 311ms

09-29 to 10-28* UTC

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/arysphere/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-10-28 to 2026-10-28: uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayUptimeResponseCompliancePrice percentileSite signals
2026-10-28*100%311.00ms14/14p233/6

Alternatives in AI

Cluster Protocol strong 99/100 100% up 30d $14.2k 30d
NetIntel strong 95/100 100% up 30d $20.40 30d
x402engine strong 95/100 100% up 30d $39.02 30d
Agent402.tools strong 94/100 99.8% up 30d $330.04 30d
AX1 Console solid 93/100 99.7% up 30d $9.9k 30d

5 of 210 other ranked services in AI, ordered by the same measured score.

see the whole category

Own this service?

Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

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.

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HTML

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Markdown

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HTML, live uptime variant

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Delisting

To request delisting, email info@x402-list.com with the service name, slug, or URL. Removal is free and does not require proof of ownership. See all free email requests.