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ProYield · stablecoin yield intelligence (pyd.fi)

payment-readyonline

payment-ready until 2026-10-21

Non-custodial USDC yield vault on HyperEVM plus a live stablecoin-yield API for agents: curated DeFi lending venue rates with safety tiers, vault share price and daily history, full provenance (sources + timestamps) in every response.

pyd.fi ↗

Call it x402 v2

x402 v2

Base URL
https://pyd.fi
Payment
x402 v2, header channel
$ curl -i 'https://pyd.fi/api/agents/all'

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 pyd.fi

GET/api/agents/allArbitrum One+Avalanche+Base+Pol+Sol$0.01since 10-14
GET/api/agents/seriesArbitrum One+Avalanche+Base+Pol+Sol$0.01since 10-14
GET/api/agents/vaultArbitrum One+Avalanche+Base+Pol+Sol$0.01since 10-14
GET/api/agents/yieldsArbitrum One+Avalanche+Base+Pol+Sol$0.01since 10-14

Prices as captured in the 402 response: median $0.01 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/api/agents/allProYield in one call: live stablecoin lending venue rates (safety tiers, blend target, sleeve rates, provenance) plus vault state on HyperEVM · share price, total assets, live caps · and a wallet's position when ?address= is supplied. Use when an agent wants the whole ProYield picture for one $0.010 call instead of two.$0.01Arbitrum One+Avalanche+Base+Pol+SolUSDC, USD Coinheadersince 10-14
GET/api/agents/seriesDaily history from ProYield's own signed attestation feed: per-day vault share price in USDC and that day's growth in basis points, one point per attestation. No interpolation and no simulated days · a day with no on-chain read reports null. Use for share-price history, backtests and trend checks.$0.01Arbitrum One+Avalanche+Base+Pol+SolUSDC, USD Coinheadersince 10-14
GET/api/agents/vaultLive ProYield vault state on HyperEVM: share price, total assets, live on-chain caps (TVL cap, per-user cap, deposits paused), and · when an address is supplied · that wallet's position value and wallet USDC. Use when an agent needs to check vault health or a position before depositing.$0.01Arbitrum One+Avalanche+Base+Pol+SolUSDC, USD Coinheadersince 10-14
GET/api/agents/yieldsLive ProYield yield intelligence: curated stablecoin lending venue rates with safety tiers, the vault blend target, fixed-pool and satellite sleeve rates, and full provenance (source + timestamps). Use when an agent needs current DeFi stablecoin yields or a risk-adjusted USDC rate anchor.$0.01Arbitrum One+Avalanche+Base+Pol+SolUSDC, USD Coinheadersince 10-14

Payment evidence

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

First of 4 payloads captured by the monitor.

201 lines, scroll inside

{
  "error": "Payment required — attach a PAYMENT-SIGNATURE header.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:43114",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB6CEceAB302E2E4948951eE7843FC24E92933061",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:196",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:480",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:1329",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "4LJtNeH5mSWRwRy1SPs3iPYXFRvUsVTMwRxbnuGWuxrv",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://pyd.fi/api/agents/all",
    "tags": [
      "defi",
      "yield",
      "vault",
      "bundle"
    ],
    "iconUrl": "https://pyd.fi/favicon.ico",
    "mimeType": "application/json",
    "description": "ProYield in one call: live stablecoin lending venue rates (safety tiers, blend target, sleeve rates, provenance) plus vault state on HyperEVM — share price, total assets, live caps — and a wallet's position when ?address= is supplied. Use when an agent wants the whole ProYield picture for one $0.010 call instead of two.",
    "serviceName": "ProYield Yield API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "address": "0x8954a73Bb36D17e4B212137Eb7B2328A1A14D1C1"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "kind": "all",
            "vault": {
              "kind": "vault",
              "vault": {
                "share_price_usdc": 1.028268,
                "total_assets_usdc": 126.269032
              },
              "position": null
            },
            "yields": {
              "kind": "yields",
              "blend": {
                "guarantee": false,
                "target_pct": 6.64
              }
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$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": {
                  "address": {
                    "type": "string"
                  }
                }
              }
            },
            "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 — attach a PAYMENT-SIGNATURE header.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:43114",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB6CEceAB302E2E4948951eE7843FC24E92933061",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:196",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:480",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:1329",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "4LJtNeH5mSWRwRy1SPs3iPYXFRvUsVTMwRxbnuGWuxrv",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://pyd.fi/api/agents/series",
    "tags": [
      "defi",
      "vault",
      "history",
      "series"
    ],
    "iconUrl": "https://pyd.fi/favicon.ico",
    "mimeType": "application/json",
    "description": "Daily history from ProYield's own signed attestation feed: per-day vault share price in USDC and that day's growth in basis points, one point per attestation. No interpolation and no simulated days — a day with no on-chain read reports null. Use for share-price history, backtests and trend checks.",
    "serviceName": "ProYield Yield API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "kind": "series",
            "last_date": "2026-10-10",
            "first_date": "2026-09-24",
            "points_count": 17,
            "daily_growth_bps": [
              {
                "bps": 275.9342,
                "date": "2026-10-01",
                "from_date": "2026-09-30",
                "share_price_usdc": 1.027913
              }
            ]
          }
        }
      },
      "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"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 4

{
  "error": "Payment required — attach a PAYMENT-SIGNATURE header.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:43114",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB6CEceAB302E2E4948951eE7843FC24E92933061",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:196",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:480",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:1329",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "4LJtNeH5mSWRwRy1SPs3iPYXFRvUsVTMwRxbnuGWuxrv",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://pyd.fi/api/agents/yields",
    "tags": [
      "defi",
      "yield",
      "stablecoin",
      "rates"
    ],
    "iconUrl": "https://pyd.fi/favicon.ico",
    "mimeType": "application/json",
    "description": "Live ProYield yield intelligence: curated stablecoin lending venue rates with safety tiers, the vault blend target, fixed-pool and satellite sleeve rates, and full provenance (source + timestamps). Use when an agent needs current DeFi stablecoin yields or a risk-adjusted USDC rate anchor.",
    "serviceName": "ProYield Yield API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "kind": "yields",
            "as_of": "2026-10-10T13:00:52Z",
            "blend": {
              "guarantee": false,
              "target_pct": 6.64
            },
            "venue_rates": {
              "source": "yields.llama.fi/pools (DefiLlama)",
              "core_rates": [
                {
                  "apy": 6.53461,
                  "tag": "core",
                  "name": "HYPERUSDCA",
                  "chain": "Monad"
                }
              ]
            }
          }
        }
      },
      "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"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 4

{
  "error": "Payment required — attach a PAYMENT-SIGNATURE header.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:43114",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xB6CEceAB302E2E4948951eE7843FC24E92933061",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:196",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:480",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
      "extra": {
        "name": "USDC",
        "version": "2"
      },
      "payTo": "0x8A1b107e1DDabC868E40b8718F09537B0A50C9aB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:1329",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "4LJtNeH5mSWRwRy1SPs3iPYXFRvUsVTMwRxbnuGWuxrv",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://pyd.fi/api/agents/vault",
    "tags": [
      "defi",
      "vault",
      "usdc"
    ],
    "iconUrl": "https://pyd.fi/favicon.ico",
    "mimeType": "application/json",
    "description": "Live ProYield vault state on HyperEVM: share price, total assets, live on-chain caps (TVL cap, per-user cap, deposits paused), and — when an address is supplied — that wallet's position value and wallet USDC. Use when an agent needs to check vault health or a position before depositing.",
    "serviceName": "ProYield Yield API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "address": "0x8954a73Bb36D17e4B212137Eb7B2328A1A14D1C1"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "kind": "vault",
            "vault": {
              "caps": {
                "tvl_usdc": 10000,
                "per_user_usdc": 1000,
                "deposits_paused": false
              },
              "share_price_usdc": 1.028268,
              "total_assets_usdc": 126.269032
            },
            "position": null
          }
        }
      },
      "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": {
                  "address": {
                    "type": "string"
                  }
                }
              }
            },
            "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

85/100 Solid

#38 of 111 in Finance. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime since 10-14
Compliance
A 14/14 checks pass
Price
$0.01 p49 in Finance
Risk
clean no risk flag
Traction
$0.06 30d 4 buyers, top buyer 63% (address, not entity)
Last change
price changed 2h ago 1 in 30d
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 2026-10-14. Last up 2026-10-14.

── 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 30d, 499ms response p95, x402 compliance 14 of 14, $0.01 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.

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 Finance, 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 111 listings, this one among them: the same 111 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.

Settled via coinbase ($0.05, 10 tx) and payAI ($0.005, 1 tx). Traction is a conservative undercount; first settlement seen 2026-10-09.

All measured facts

What it does

Non-custodial USDC yield vault on HyperEVM plus a live stablecoin-yield API for agents: curated DeFi lending venue rates with safety tiers, vault share price and daily history, full provenance (sources + timestamps) in every response. Pay-per-call USDC via x402 on Base, Arbitrum One or Polygon; no signup, no API key.

ProYield · stablecoin yield intelligence (pyd.fi) is a listed x402 Finance API. Captured payment terms name Arbitrum One, Avalanche, Base, Polygon, Solana. 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: 2026-09-15 to 2026-10-14 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . 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 · Finance

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
499ms
avg response
362ms
total checks
8

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

price (min)
$0.01
category percentile (min)
p49 in Finance
endpoints / prices
4 / 1
model
flat
stability
27%

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
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

assessment volume 30d
$0.06
exact assessment volume 30d (USD)
0.055
assessment recorded at (UTC)
2026-10-14T15:53:03.814Z
buyers 30d
4
settlements 30d
11
measured since
2026-10-09 (start of our harvest window)
last settlement
2026-10-14
top buyer share
63% of 30d volume (address, not entity)
top 3 buyers share
90% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
4.29x the 30d daily rate
networks
eip155:137, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$0.08
settlements all-time
11
median settlement 30d
$0.005
max settlement 30d
$0.005

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since
2026-10-14
Recent checks
Latest 14 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402428ms4
Online402441ms4
Online402214ms4
Online402343ms4
Online402282ms4
Online402174ms4
Online402499ms4
Online402370ms4
Online402282ms4
Online402327ms4
Online402349ms4
Online402397ms4
Online402438ms4
Online402236ms4

Changes1 in 30d

Latest 1 recorded changes, up to 10 in the last 30 days; newest first; observation times in UTC
Observed at (UTC)ChangeEvidence
price changed

GET /api/agents/all · eip155:1329 · USDC: 5000 → 10000

GET /api/agents/all · eip155:137 · USDC: 5000 → 10000

GET /api/agents/all · eip155:196 · USDC: 5000 → 10000

GET /api/agents/all · eip155:42161 · USD Coin: 5000 → 10000

GET /api/agents/all · eip155:43114 · USDC: 5000 → 10000

GET /api/agents/all · eip155:480 · USDC: 5000 → 10000

GET /api/agents/all · eip155:8453 · USDC: 5000 → 10000

GET /api/agents/all · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 10000

GET /api/agents/series · eip155:1329 · USDC: 5000 → 10000

GET /api/agents/series · eip155:137 · USDC: 5000 → 10000

GET /api/agents/series · eip155:196 · USDC: 5000 → 10000

GET /api/agents/series · eip155:42161 · USD Coin: 5000 → 10000

GET /api/agents/series · eip155:43114 · USDC: 5000 → 10000

GET /api/agents/series · eip155:480 · USDC: 5000 → 10000

GET /api/agents/series · eip155:8453 · USDC: 5000 → 10000

GET /api/agents/series · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 10000

GET /api/agents/vault · eip155:1329 · USDC: 5000 → 10000

GET /api/agents/vault · eip155:137 · USDC: 5000 → 10000

GET /api/agents/vault · eip155:196 · USDC: 5000 → 10000

GET /api/agents/vault · eip155:42161 · USD Coin: 5000 → 10000

GET /api/agents/vault · eip155:43114 · USDC: 5000 → 10000

GET /api/agents/vault · eip155:480 · USDC: 5000 → 10000

GET /api/agents/vault · eip155:8453 · USDC: 5000 → 10000

GET /api/agents/vault · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 10000

GET /api/agents/yields · eip155:1329 · USDC: 5000 → 10000

GET /api/agents/yields · eip155:137 · USDC: 5000 → 10000

GET /api/agents/yields · eip155:196 · USDC: 5000 → 10000

GET /api/agents/yields · eip155:42161 · USD Coin: 5000 → 10000

GET /api/agents/yields · eip155:43114 · USDC: 5000 → 10000

GET /api/agents/yields · eip155:480 · USDC: 5000 → 10000

GET /api/agents/yields · eip155:8453 · USDC: 5000 → 10000

GET /api/agents/yields · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 10000

Amounts are on-wire atomic units in the named asset.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $0.06, peak $0.06 on 10-14*
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime no completed-day data
Volume 30d
$0.06
Uptime
no completed-day data
Daily on-chain settlement volume in US dollars, 2026-09-15 to 2026-10-14; highest day $0.06 on 10-14*; 2 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 335ms, avg 335ms, max 335ms

09-15 to 10-14* UTC

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/proyield-stablecoin-yield-intelligence-pyd-fi/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.

Daily snapshot total, 30d: $0.09, peak $0.06 on 10-14*. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-15 to 2026-10-14 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

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

Daily values, 2026-10-09 to 2026-10-14: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-10-09$0.0111no datano datano datano datano data
2026-10-10no datano datano datano datano datano datano datano data
2026-10-11no datano datano datano datano datano datano datano data
2026-10-12$0.0111no datano datano datano datano data
2026-10-13$0.0111no datano datano datano datano data
2026-10-14*$0.0639100%334.77ms14/14p494/6

Alternatives in Finance

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Market Intelligence API strong 93/100 99.6% up 30d $34.28 30d
Losbeto · LLM Gateway & Market Intelligence solid 91/100 99.9% up 30d $460.15 30d
x402stock solid 91/100 100% up 30d $37.98 30d

5 of 110 other ranked services in Finance, ordered by the same measured score.

see the whole category

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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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To request delisting, email info@x402-list.com or update your listing at /services/proyield-stablecoin-yield-intelligence-pyd-fi/update.