x402.asterpay.io

FX cross rate from ECB fixings. Cross rate between two ISO currencies derived from the daily ECB euro reference fixing (e.g. USD/JPY = EURJPY / EURUSD). Same fixing time as /v1/data/fx/ecb. Source: European Central Bank. Cadence: daily.

DataLiveeip155:8453Exactvia wellknown:x402.asterpay.io

https://x402.asterpay.io/v1/data/fx/pair/:base/:quote

Settlements · 30d

28↑ 40%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$1.61

Verified settled volume

201 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

0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E

The 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.

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 0xd5f8…45A9E.

Paid to: 0xd5f8…45A9E
USD Coin contract: 0x8335…02913
As published: 2000 smallest units

2000units

on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd5f8…45A9E
Token contract: 0x3c49…c3359

2000units

on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd5f8…45A9E
Token contract: 0xaf88…e5831

2000units

on Optimism · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd5f8…45A9E
Token contract: 0x0b2C…7Ff85

2000units

on Ethereum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd5f8…45A9E
Token contract: 0xA0b8…6eB48

2000units

on eip155:1187947933 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd5f8…45A9E
Token contract: 0x8588…FCb20

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453"
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:137"
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:42161"
  },
  {
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:10"
  },
  {
    "asset": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:1"
  },
  {
    "asset": "0x85889c8c714505E0c94b30fcfcF64fE3Ac8FCb20",
    "payTo": "0xd5f8481D8F25d3966d2010DBf9B47fFbdf745A9E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:1187947933"
  }
]

Provenance

Seen in the source catalog: —
Last indexed by Roundhouse: 2026-09-22 03:15Z
Last enriched (probe, favicon, geo): 2026-09-22 03:45Z
x402 version: 2
Max timeout: —
Liveness probe: HTTP 400

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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Show the prompt

Using Roundhouse, look up the x402 service x402.asterpay.io 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=x402.asterpay.io'
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.asterpay.io/v1/data/fx/pair/:base/:quote, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.