P0 x402 Market Index
Use for a short euro exchange rate history: daily ECB euro foreign exchange reference rates of one currency against EUR for up to the last 30 days (ccy=USD, days=1..30), with min, max and percent change over the window and a stale flag. Source attribution in every reply. Reference rates for information only, not transaction rates. $0.002 USDC per call. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX (sub-cent: stablecoins): see /pay.
TradingLiveeip155:8453Exactvia facilitator:payAI
EurFxEcbHistoryEurope
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$5.61
Verified settled volume
457 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xECa891e34b3E5873181Fb779672564E198C55354The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xECa891e34b3E5873181Fb779672564E198C55354",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history",
"description": "Use for a short euro exchange rate history: daily ECB euro foreign exchange reference rates of one currency against EUR for up to the last 30 days (ccy=USD, days=1..30), with min, max and percent change over the window and a stale flag. Source attribution in every reply. Reference rates for information only, not transaction rates. $0.002 USDC per call. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX (sub-cent: stablecoins): see /pay.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ccy": "USD",
"days": "30"
},
"discoverable": true
},
"output": {
"type": "object",
"required": [
"base",
"ccy",
"days",
"from",
"to",
"count",
"points",
"min",
"max",
"changePct",
"stale",
"businessDaysOld",
"source",
"sourceUrl",
"note"
],
"properties": {
"to": {
"type": "string"
},
"ccy": {
"type": "string"
},
"max": {
"type": "number"
},
"min": {
"type": "number"
},
"base": {
"type": "string"
},
"days": {
"type": "number"
},
"from": {
"type": "string"
},
"note": {
"type": "string"
},
"count": {
"type": "number"
},
"stale": {
"type": "boolean"
},
"points": {
"type": "array",
"items": {
"type": "object",
"properties": {
"date": {
"type": "string"
},
"rate": {
"type": "number"
}
}
}
},
"source": {
"type": "string"
},
"changePct": {
"type": "number"
},
"sourceUrl": {
"type": "string"
},
"businessDaysOld": {
"type": "number"
}
}
}
},
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history",
"tags": [
"eur",
"fx",
"ecb",
"history",
"europe"
],
"type": "http",
"method": "GET",
"iconUrl": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/icon.png",
"description": "Use for a short euro exchange rate history: daily ECB euro foreign exchange reference rates of one currency against EUR for up to the last 30 days (ccy=USD, days=1..30), with min, max and percent change over the window and a stale flag. Source attribution in every reply. Reference rates for information only, not transaction rates. $0.002 USDC per call. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX (sub-cent: stablecoins): see /pay.",
"serviceName": "P0 x402 Market Index"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ccy": "USD",
"days": 30
}
},
"output": {
"type": "json",
"example": {
"to": "2026-10-02",
"ccy": "USD",
"max": 1.1355,
"min": 1.1225,
"base": "EUR",
"days": 3,
"from": "2026-09-30",
"note": "Reference rates published by the European Central Bank for information purposes only; not transaction rates. Usually updated around 16:00 CET on TARGET working days.",
"count": 3,
"stale": false,
"points": [
{
"date": "2026-09-30",
"rate": 1.1355
},
{
"date": "2026-10-01",
"rate": 1.1298
},
{
"date": "2026-10-02",
"rate": 1.1225
}
],
"source": "ECB euro foreign exchange reference rates",
"changePct": -1.1449,
"sourceUrl": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html",
"businessDaysOld": 1
}
}
},
"schema": {
"type": "object",
"$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"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"ccy": {
"type": "string",
"default": "USD",
"pattern": "^[A-Z]{3}$",
"description": "ISO 4217 currency quoted against EUR, e.g. USD, GBP, JPY"
},
"days": {
"type": "integer",
"default": 30,
"maximum": 30,
"minimum": 1,
"description": "calendar days back from the latest ECB publication"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"base",
"ccy",
"days",
"points",
"stale",
"source",
"sourceUrl"
],
"properties": {
"to": {
"type": [
"string",
"null"
]
},
"ccy": {
"type": "string"
},
"max": {
"type": [
"number",
"null"
]
},
"min": {
"type": [
"number",
"null"
]
},
"base": {
"type": "string"
},
"days": {
"type": "integer"
},
"from": {
"type": [
"string",
"null"
]
},
"note": {
"type": "string"
},
"count": {
"type": "integer"
},
"stale": {
"type": "boolean"
},
"points": {
"type": "array",
"items": {
"type": "object",
"required": [
"date",
"rate"
],
"properties": {
"date": {
"type": "string"
},
"rate": {
"type": "number"
}
}
}
},
"source": {
"type": "string"
},
"changePct": {
"type": [
"number",
"null"
]
},
"sourceUrl": {
"type": "string"
},
"businessDaysOld": {
"type": "integer"
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 1,
"already_paid": "Pay with the x402 header, or transfer the price to payTo and claim it with its transaction hash: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?tx=<hash> (or ?btc=, ?tron=, ?sol=, ?stx= — see other_assets).",
"other_assets": {
"evm": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?tx=<0x hash>[&chain=base|ethereum|arbitrum|polygon] (USDC, USDT, DAI, WETH, WBTC/cbBTC or the chain's native coin; the chain hint is optional — all four are searched)",
"note": "Stablecoins are processed at face value; volatile crypto assets are automatically priced using Coinbase spot rates at the exact time of block confirmation.",
"tron": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?tron=<txid> (USDT TRC20 or TRX, to TB9rHqT8yLxwdsWCb3zN2nvjc8wLhsUdaQ)",
"solana": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?sol=<signature> (SOL, USDC or USDT, to FTbVqWwsfJJ5AuAwNDuCuzdpwCEJahu14HAUgAYcJHuq; native SOL at least 0.00065024 SOL so the transfer creates the account; claim within 2 days)",
"stacks": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?stx=<txid> (STX or sBTC, to SP34GH04YTB01AMXF4CAQ10Y5B7G4E0119N99W986)",
"bitcoin": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?btc=<txid> (to bc1qqwgyyqv6raq2jnghals2n2aujgwd4e9p64g4hr)"
},
"weekly_report": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/join",
"pay_with_tx_hash": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history?tx=<your transaction hash>",
"pay_without_x402": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/pay"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0xECa8…55354. The signed payment is good for 5 minutes.
- Paid to
- 0xECa8…55354
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"bazaar": {
"tags": [
"eur",
"fx",
"ecb",
"history",
"europe"
],
"category": "market-data",
"serviceName": "P0 x402 Market Index"
},
"version": "2"
},
"payTo": "0xECa891e34b3E5873181Fb779672564E198C55354",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ccy": "USD",
"days": 30
}
},
"output": {
"type": "json",
"example": {
"to": "2026-10-02",
"ccy": "USD",
"max": 1.1355,
"min": 1.1225,
"base": "EUR",
"days": 3,
"from": "2026-09-30",
"note": "Reference rates published by the European Central Bank for information purposes only; not transaction rates. Usually updated around 16:00 CET on TARGET working days.",
"count": 3,
"stale": false,
"points": [
{
"date": "2026-09-30",
"rate": 1.1355
},
{
"date": "2026-10-01",
"rate": 1.1298
},
{
"date": "2026-10-02",
"rate": 1.1225
}
],
"source": "ECB euro foreign exchange reference rates",
"changePct": -1.1449,
"sourceUrl": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html",
"businessDaysOld": 1
}
}
},
"schema": {
"type": "object",
"$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"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"ccy": {
"type": "string",
"default": "USD",
"pattern": "^[A-Z]{3}$",
"description": "ISO 4217 currency quoted against EUR, e.g. USD, GBP, JPY"
},
"days": {
"type": "integer",
"default": 30,
"maximum": 30,
"minimum": 1,
"description": "calendar days back from the latest ECB publication"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"base",
"ccy",
"days",
"points",
"stale",
"source",
"sourceUrl"
],
"properties": {
"to": {
"type": [
"string",
"null"
]
},
"ccy": {
"type": "string"
},
"max": {
"type": [
"number",
"null"
]
},
"min": {
"type": [
"number",
"null"
]
},
"base": {
"type": "string"
},
"days": {
"type": "integer"
},
"from": {
"type": [
"string",
"null"
]
},
"note": {
"type": "string"
},
"count": {
"type": "integer"
},
"stale": {
"type": "boolean"
},
"points": {
"type": "array",
"items": {
"type": "object",
"required": [
"date",
"rate"
],
"properties": {
"date": {
"type": "string"
},
"rate": {
"type": "number"
}
}
}
},
"source": {
"type": "string"
},
"changePct": {
"type": [
"number",
"null"
]
},
"sourceUrl": {
"type": "string"
},
"businessDaysOld": {
"type": "integer"
}
}
}
}
}
}
},
"discoverable": true
}
}Provenance
- Seen in the source catalog
- 2026-10-12 01:34Z
- Last indexed by Roundhouse
- 2026-10-26 14:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-12 09:46Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service P0 x402 Market Index and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=P0%20x402%20Market%20Index' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx/history, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.