Agent Exchange x402 census and directory

Route: fx-rates

Say what you need in plain words. You get back the paid API that buyers actually pay for and that answers right now. It comes with the exact request to send and that seller's payment terms, read seconds ago, so you can pay with your first request. Free: no key, no account.

The answer

ECB FX Rates

ECB FX Rates: Official daily foreign exchange reference rates from the European Central Ba

GET https://4yearcycle.com/x402/fx-rates · 0.005 USD · base

7 different buyers paid this exact route 7 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid x402 402 to our check 1 s before this answer, in 778 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x9862ca83b72aB95521F457aFf6e6EFb03d8164C3",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 1

AgentFeed

AgentFeed: FX reference rates: the ECB euro foreign exchange reference rates for about 30

GET https://x402.ochinimus.app/api/fx-rates · 0.002 USD · base

5 different buyers paid this exact route 5 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 387 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "base",
  "maxAmountRequired": "2000",
  "resource": "https://x402.ochinimus.app/api/fx-rates",
  "description": "FX reference rates: the ECB euro foreign exchange reference rates for about 30 currencies, as published or as crosses for another base, plus Hyperliquid HIP-3 FX and commodity marks. Use when you need to answer: What are today's official euro exchange rates? The ECB rates are available free of charge on the ECB's website; they are for information only, not for transactions.",
  "mimeType": "application/json",
  "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
  "maxTimeoutSeconds": 300,
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "solana",
  "maxAmountRequired": "2000",
  "resource": "https://x402.ochinimus.app/api/fx-rates",
  "description": "FX reference rates: the ECB euro foreign exchange reference rates for about 30 currencies, as published or as crosses for another base, plus Hyperliquid HIP-3 FX and commodity marks. Use when you need to answer: What are today's official euro exchange rates? The ECB rates are available free of charge on the ECB's website; they are for information only, not for transactions.",
  "mimeType": "application/json",
  "payTo": "4a8o45skRPcyjAdyR8yES215Swvh8uTpZD6KLarhxCJ7",
  "maxTimeoutSeconds": 300,
  "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  "extra": {
   "name": "USDC",
   "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
  }
 }
]

census record · seller

Alternative 2

Otto AI

Otto AI: Live + reference foreign-exchange (forex) rates, base USD. LIVE near-real-time mi

GET https://x402.ottoai.services/fx-rates · 0.001 USD · base

6 different buyers paid this exact route 9 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-19; answered a valid x402 402 to our check 1 s before this answer, in 234 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "1000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
  "amount": "1000",
  "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
  "maxTimeoutSeconds": 300,
  "extra": {
   "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
  }
 }
]

census record · seller

Alternative 3

US Treasury exchange rates

US Treasury exchange rates: Official US Treasury reporting rates of exchange (quarterly) f

POST https://api.vextorium.com/v1/us-treasury-fx-rates · 0.003 USD · base

3 different buyers paid this exact route 4 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "3000",
  "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

AllTheBot FX rates (ECB)

AllTheBot FX rates (ECB): Currency exchange rates and forex API: official ECB (European Ce

GET https://api.zkrobotics.fr/x402/finance/fx-rates · 0.004 USD · base

4 different buyers paid this exact route 5 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "4000",
  "payTo": "0x60fd97850059dF9600C4E26f09aC58EF51561963",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Only routes that answered a valid x402 402 at our census probe; the top three are checked again at answer time and one that answers goes first. Order: how well the route's own description matches your words, then distinct buyers of that exact route in 30 days and its calls (Coinbase CDP catalogue), paid in the last 7 days, input schema published, then lower price. Paid placement never changes this order; it shows only under sponsored.

Sponsored (paid placement, not ranked): Foundations Elements

For agents

GET https://bazaar.agentexchange.work/route.json?need=bitcoin%20price or POST https://bazaar.agentexchange.work/route {"need":"..."}, or the MCP tool route at https://bazaar.agentexchange.work/mcp. Optional filters: max_price_usd, network.

What buyers pay for most (30 days)

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All needs