x402 List

x402 Protocol Service Directory

MioDio Meridian

Finance PAYMENT-READY

payment-ready until 2026-09-28

x402 v2 DeFi Risk Passport: Aave v3 address risk, Lido stETH exit-risk, ERC-4626 vault risk. ~$0.04 USDC Exact on Base per call. Public chain data only.

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

listed 2026-09-21 · no on-chain settlement recorded yet

BASE URL https://workers.miodiollc.com WEBSITE https://workers.miodiollc.com ENDPOINTS 2 NETWORK Base ASSET USDC MEMBER SINCE 2026-09-21 MONITORED SINCE 2026-09-21

VERDICT

ranking generation 3

solid 83/100 #40 of 92 in Finance by measured score

What the score read on this service: status online, 100% uptime 24h (no 30d window yet), 728ms response p95, x402 compliance 14 of 14, $0.04 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 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 92 listings, this one among them. That set is wider than the 92 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 FINANCE

Other Finance 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
Bitrefill strong 95 99.9% $337.00
Losbeto — LLM Gateway & Market Intelligence solid 91 99.4% $56.77
Stock Trends Market Intelligence solid 91 99.4% $86.11
x402stock solid 91 100% $15.35
hlrisk solid 90 99.8% $16.39
5 of 91 other ranked services in Finance · 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 24h
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
728ms
avg response
728ms
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 $0.04 (p71 in Finance)
price (min)
$0.04
category percentile (min)
p71 in Finance
endpoints / prices
2 / 1
model
flat
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
1254d
registrar
NameCheap, Inc.
hosting
custom
domain created
2023-04-15

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 a concentration signal, not part of the ranking score.

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 /v1/risk/0xBA9424d650A4F5c80a0dA641254d1AcCE2A37057 $0.04 Base USDC header
GET /v1/vault/0xc1256Ae5FF1cf2719D4937adb3bbCCab2E00A2Ca $0.04 Base USDC header
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/risk/0xBA9424d650A4F5c80a0dA641254d1AcCE2A37057 returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://workers.miodiollc.com/v1/risk/0xBA9424d650A4F5c80a0dA641254d1AcCE2A37057'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x4DA1ED782BD61BaE9AdD5a5CaBbCf32f767f8d7F",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 120
      }
    ],
    "resource": {
      "url": "https://workers.miodiollc.com/v1/risk/0xBA9424d650A4F5c80a0dA641254d1AcCE2A37057",
      "tags": [
        "defi",
        "risk",
        "aave"
      ],
      "mimeType": "application/json",
      "description": "MioDio Meridian DeFi Risk Passport - Aave v3 public risk snapshot for an EVM address (~$0.04 USDC Exact on Base). MioDio x402 DeFi.",
      "serviceName": "MioDio Meridian Risk Passport"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "pathParams": {
              "address": "0x0000000000000000000000000000000000000001"
            },
            "queryParams": {
              "chain": "base"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "as_of": "2026-09-14T00:00:00.000Z",
              "chain": "base",
              "hooks": {
                "next": [
                  "Optional: stablecoin exposure breakdown via UiPoolDataProvider"
                ],
                "notes": [
                  "MVP uses Aave v3 Pool.getUserAccountData only (collateral, debt, HF).",
                  "No social scrapes, no off-chain enrichment resale."
                ]
              },
              "status": "ok",
              "aave_v3": {
                "raw": {
                  "ltv": "7500",
                  "healthFactor": "3210000000000000000",
                  "totalDebtBase": "100000000",
                  "totalCollateralBase": "1234000000",
                  "availableBorrowsBase": "567000000",
                  "currentLiquidationThreshold": "8250"
                },
                "pool": "0xA238Dd80C259a72e81d7e4664a9801593F98d1c5",
                "ltv_pct": "75.00",
                "protocol": "aave_v3",
                "health_factor": "3.21",
                "total_debt_usd": "1.00",
                "total_collateral_usd": "12.34",
                "available_borrows_usd": "5.67",
                "liquidation_threshold_pct": "82.50"
              },
              "address": "0x0000000000000000000000000000000000000001",
              "product": "mio_dio_defi_risk_passport",
              "version": "0.3.6",
              "disclaimer": "MioDio DeFi Risk Passport (MVP). Best-effort public on-chain reads only. Not financial, legal, or investment advice. No KYC/social enrichment. Balances are never invented — missing fields mean the read failed or was not attempted. Always verify on-chain."
            }
          }
        },
        "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"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "address": {
                      "type": "string",
                      "description": "EVM address (checksummed or 0x-prefixed hex) to snapshot on Aave v3"
                    }
                  }
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string",
                      "description": "Aave v3 read chain (public RPC). Defaults to base. Independent of the USDC payment network."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "product",
                    "version",
                    "status",
                    "address",
                    "chain",
                    "as_of",
                    "disclaimer",
                    "aave_v3",
                    "hooks"
                  ],
                  "properties": {
                    "as_of": {
                      "type": "string"
                    },
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string"
                    },
                    "hooks": {
                      "type": "object"
                    },
                    "errors": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "status": {
                      "enum": [
                        "ok",
                        "partial"
                      ],
                      "type": "string"
                    },
                    "aave_v3": {
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "address": {
                      "type": "string"
                    },
                    "product": {
                      "type": "string",
                      "const": "mio_dio_defi_risk_passport"
                    },
                    "version": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    }
                  }
                }
              }
            }
          }
        },
        "routeTemplate": "/v1/risk/0x0000000000000000000000000000000000000001"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x4DA1ED782BD61BaE9AdD5a5CaBbCf32f767f8d7F",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 120
      }
    ],
    "resource": {
      "url": "https://workers.miodiollc.com/v1/vault/0xc1256Ae5FF1cf2719D4937adb3bbCCab2E00A2Ca",
      "tags": [
        "defi",
        "erc4626",
        "vault",
        "risk"
      ],
      "mimeType": "application/json",
      "description": "MioDio Meridian ERC-4626 vault risk card - share price, drawdown, APY estimate, and withdrawable liquidity for one vault (~$0.04 USDC Exact on Base). MioDio x402 DeFi.",
      "serviceName": "MioDio Meridian Vault Risk"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "pathParams": {
              "address": "0xc1256Ae5FF1cf2719D4937adb3bbCCab2E00A2Ca"
            },
            "queryParams": {
              "chain": "base"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "apy": {
                "method": "share_price_lookback",
                "window": "7d",
                "estimate_pct": "5.10"
              },
              "card": "vault_risk",
              "as_of": "2026-09-14T00:00:00.000Z",
              "chain": "base",
              "vault": "0xc1256Ae5FF1cf2719D4937adb3bbCCab2E00A2Ca",
              "status": "ok",
              "product": "mio_dio_defi_risk_passport",
              "version": "0.3.6",
              "liquidity": {
                "note": "idle_assets is the underlying token balance of the vault contract. Strategy-held assets may still be withdrawable.",
                "amount": null,
                "idle_assets": "120000.0",
                "total_assets": "25000000.0",
                "idle_coverage_bps": 48,
                "idle_covers_amount": null
              },
              "disclaimer": "MioDio Meridian ERC-4626 vault risk card. Best-effort public on-chain reads only. Not financial, legal, or investment advice. APY is a share-price lookback, not a promise. Idle assets may understate withdrawable liquidity when the vault can unwind strategies. Always verify on-chain.",
              "vault_meta": {
                "name": "Moonwell Flagship USDC",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "symbol": "mwUSDC",
                "asset_symbol": "USDC",
                "asset_decimals": 6,
                "share_decimals": 18
              },
              "share_price": {
                "lookback": {
                  "d1": "1.0419",
                  "d7": "1.0410",
                  "d30": "1.0375"
                },
                "drawdown_bps": 0,
                "assets_per_share": "1.0421"
              }
            }
          }
        },
        "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"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "address": {
                      "type": "string",
                      "description": "ERC-4626 vault contract address"
                    }
                  }
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string",
                      "description": "Vault chain. Defaults to base. Ethereum is optional."
                    },
                    "amount": {
                      "type": "string",
                      "description": "Optional underlying amount in human units. When set, idle_covers_amount compares vault idle cash to this size."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "product",
                    "card",
                    "version",
                    "status",
                    "chain",
                    "vault",
                    "as_of",
                    "disclaimer",
                    "vault_meta",
                    "share_price",
                    "apy",
                    "liquidity"
                  ],
                  "properties": {
                    "apy": {
                      "type": "object"
                    },
                    "card": {
                      "type": "string",
                      "const": "vault_risk"
                    },
                    "as_of": {
                      "type": "string"
                    },
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string"
                    },
                    "notes": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "vault": {
                      "type": "string"
                    },
                    "errors": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "status": {
                      "enum": [
                        "ok",
                        "partial"
                      ],
                      "type": "string"
                    },
                    "product": {
                      "type": "string",
                      "const": "mio_dio_defi_risk_passport"
                    },
                    "version": {
                      "type": "string"
                    },
                    "liquidity": {
                      "type": "object"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "vault_meta": {
                      "type": "object"
                    },
                    "share_price": {
                      "type": "object"
                    }
                  }
                }
              }
            }
          }
        },
        "routeTemplate": "/v1/vault/0xc1256Ae5FF1cf2719D4937adb3bbCCab2E00A2Ca"
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 24h selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/miodio-meridian/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
09-21 · uptime 100.0% · 610ms avg09-2109-21
24h UPTIME 100%
RESPONSE TIME
09-21 · 610ms avg09-21 · 610ms avg09-2109-21
AVG RESP 557ms
PRICE (captured 402, USD)
building price history ($0.04)

Median across 2 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)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-21 · last up 2026-09-21

  • 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 (6) live · click to expand
TIME STATUS RESP CAUSE
● OK 518ms
● OK 384ms
● OK 422ms
● SLOW 1032ms
● OK 256ms
● OK 728ms

EMBED THIS BADGE

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

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