← The evidence ledger
Evidence row 1508730
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://1gateway.dev/v1/x402/preflight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- dca0b5a5e5e3fcf38ad2b2750996e8de18baae0031494ce4d8e6116368a21eb2
- Leaf
- 0x3902d74400378a0387e3c8963250c8b0dc0d6b1453b7670dc52a32a8b9d08148
What was observed
{
"endpoints": [
[
"x402",
"https://1gateway.dev/v1/x402/preflight"
]
],
"name": "x402 Payment Preflight",
"owner_address": "0x6246eee0355dd7a93c888fe59e1151388a0cc5a1",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1",
"scheme": "exact"
},
{
"amount": "2000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "AwV6UZobYPyTdsuNa2NknZZrnmmUoH5ckEv3wNgL26WT",
"scheme": "exact"
}
],
"description": "Use when an agent is about to pay an unknown x402 endpoint and needs a cheap safety gate. Input: url (https x402 resource), method, optional max_price_usd. Output: JSON verdict ALLOW/WARN/DENY with reasons: live quote now, price vs similar routes and your budget, payTo on the OFAC list, price change vs our last measurement, our 7-day uptime/p95, ERC-8004 registration. Never pays; cached 60 s. Example: ?url=https://1gateway.dev/v1/fx/rates&max_price_usd=0.01",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"max_price_usd": 0.01,
"method": "GET",
"url": "https://1gateway.dev/v1/fx/rates"
},
"type": "http"
},
"output": {
"example": {
"checkedAt": "2026-10-31T08:00:00.000Z",
"market": {
"medianUsd": 0.005,
"similarRoutes": 6
},
"measured": null,
"method": "GET",
"notes": [
"One unpaid request was sent (no payment header); nothing was paid."
],
"quote": {
"networks": [
"eip155:8453"
],
"payTo": [
"0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1"
],
"priceUsd": 0.002
},
"reasons": [
{
"code": "live_quote",
"level": "ok",
"message": "Live x402 quote in 0 ms"
}
],
"url": "https://1gateway.dev/v1/time/convert",
"verdict": "ALLOW"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"max_price_usd": {
"description": "Your budget per call in USD; a higher quote gives DENY",
"examples": [
0.01
],
"maximum": 1000000,
"minimum": 0,
"type": "number"
},
"method": {
"default": "GET",
"description": "HTTP method of the resource",
"enum": [
"GET",
"POST"
],
"examples": [
"GET"
],
"type": "string"
},
"url": {
"description": "https URL of the x402 resource you are about to pay",
"examples": [
"https://1gateway.dev/v1/fx/rates"
],
"maxLength": 1000,
"pattern": "^https://",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"checkedAt": {
"type": "string"
},
"market": {
"properties": {
"medianUsd": {
"type": "number"
},
"similarRoutes": {
"type": "integer"
}
},
"type": "object"
},
"measured": {
"type": "null"
},
"method": {
"type": "string"
},
"notes": {
"items": {
"type": "string"
},
"type": "array"
},
"quote": {
"properties": {
"networks": {
"items": {
"type": "string"
},
"type": "array"
},
"payTo": {
"items": {
"type": "string"
},
"type": "array"
},
"priceUsd": {
"type": "number"
}
},
"type": "object"
},
"reasons": {
"items": {
"properties": {
"code": {
"type": "string"
},
"level": {
"type": "string"
},
"message": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"url": {
"type": "string"
},
"verdict": {
"type": "string"
}
},
"required": [
"url",
"method",
"verdict",
"reasons",
"quote",
"measured",
"market",
"checkedAt",
"notes"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_dr4pqtka"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792593183/bazaar-icons/c4d9db8f8f483844.png",
"lastUpdated": "2026-10-31T11:12:58.674Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-31T11:12:58.44Z"
},
"resource": "https://1gateway.dev/v1/x402/preflight",
"serviceName": "x402 Payment Preflight",
"tags": [
"x402 preflight",
"agent payment safety",
"x402 trust",
"payment guard",
"agent payments"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Use when an agent is about to pay an unknown x402 endpoint and needs a cheap safety gate. Input: url (https x402 resource), method, optional max_price_usd. Output: JSON verdict ALLOW/WARN/DENY with reasons: live quote now, price vs similar routes and your budget, payTo on the OFAC list, price change vs our last measurement, our 7-day uptime/p95, ERC-8004 registration. Never pays; cached 60 s. Example: ?url=https://1gateway.dev/v1/fx/rates&max_price_usd=0.01"
}What the leaf hashes
{"body":"dca0b5a5e5e3fcf38ad2b2750996e8de18baae0031494ce4d8e6116368a21eb2","id":1508730,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472761739290,"prev":null,"subject":"x402_bazaar:https://1gateway.dev/v1/x402/preflight","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (246033 rows).
- 0x390253c382ff1b539228ac222a34a790de10c51eb07b34f2c4c06e5f01eca43c
- 0x4a00a08887a6ca02513025db0cd1aca9f7d247ab9839476183cfec3638636011
- 0x54fca44ba28be1c118b93576c495c3513ff51925d5533c7cf947e05fec428e72
- 0x233ec3c064710f8b135d0f5452a0b3eb1fe070b70d4731b1f2e3527bc5acdb02
- 0x7d2709b9373382299a7d49286e8baa33d9e3b3c26269e93e7c242afa88a48fa4
- 0x82628ba1cb99149fb822681456525f33bbf4b1779f52becb0bc33bb250d3c528
- 0x88fc61a83e36883ad697ab757d6d666ec410a27091ef58a6778098095c9ebeac
- 0x4387dcd6ca79ee6eaa3907a4e738ee09b189e45805605d5e6068c8d16c8fbcae
- 0x4a5dceeea0fdc54e7ada56f86f29ef2ffcc4ade647be8609a58d0d5009403474
- 0x46d9a883c37dcc8d1fb1a45e812a3239b29b82cb643eb636b6cd0fbe1fc943ba
- 0x1e7a85899959ad55888a8f1490757e91f69b2c66f7ae783b452fe35e24eb743e
- 0xc7de2e4ecbadc326b5b47f5b541eade3039b97b88b1d494c5b72224e62dbfa74
- 0xc08a95432ee62dd58cb3728c1d0459085d8413489549424626ac5b39a364bbf4
- 0xef0d1fd5544fb725719e2c1f829863138c2a1d7485e7f69d488a1dddb98843f6
- 0xc712f139a437e96ecb98a6d83c47c29921720c39ba2e7e94f4973de043fb567c
- 0x24ea73817c2ff07f87a42be89aff36ac5fe49b64420a647cd406ee60e6a77f70
- 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
- 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15
- Day root
- 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
- Chained
- 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
- Published
- On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0