Currency exchange rate APIs for AI agents, paid per call
Paid APIs for foreign exchange rates and currency conversion, that an AI agent can call and pay for on the spot with x402, in USDC. We list 266, from 156 sellers. 249 are live and asking for payment correctly, and 99 delivered when we bought from them with real money. The typical price is $0.005 a call (half ask between $0.002 and $0.01).
The APIs
The first 30, in the same order as our search (GET /v1/discover?category=data.fx, testnets left out): verified first, then probe score, then price.
Nobody can pay for a place here. Each name opens the full record: every check, every purchase, with dates.
| API | price | status | when we bought |
|---|---|---|---|
| Fiat FX Ratesfree samplex402-spot-prices.hsharmanov02.workers.dev | $0.01 | verified | probes pass; not bought yet |
| Spot FXfree sampleapi.premiumrewards.vip | $0.001 | verified | probes pass; not bought yet |
| LatAmPulsefree samplelatam.lonestaroracle.xyz | $0.05 | verified | bought, delivered 2026-09-22 |
| Ozmium — Risk Pairsozmium.org | $0.001 | verified | bought, delivered 2026-10-30 |
| data.greeneris.io/v1/fx/latest | $0.001 | verified | bought, did not deliver |
| mcpfax-utility.bowling-anthony.workers.dev/v1/fx | $0.001 | verified | probes pass; not bought yet |
| x402engine.app/api/crypto/price | $0.001 | verified | bought, delivered 2026-09-25 |
| x402-datashop-production.up.railway.app/v1/fx/latest | $0.001 | verified | bought, did not deliver |
| x402.orthogonal.com/exchange-rates/v1/convert | $0.001 | verified | probes pass; not bought yet |
| ozmium.org/v1/candles | $0.001 | verified | bought, delivered 2026-10-11 |
| www.amnt.io/api/agent/amnt/bitcoin-price | $0.001 | verified | bought, delivered 2026-10-11 |
| intel.degenscan.io/v1/br/ptax | $0.001 | verified | bought, delivered 2026-10-11 |
| api.youraitools.co/payguard/v1/address | $0.001 | verified | bought, delivered 2026-11-01 |
| api.youraitools.co/fx/v1/convert | $0.001 | verified | bought, did not deliver |
| quickbuild.quynguyenbac.workers.dev/api/crypto/price | $0.001 | verified | bought, delivered 2026-11-01 |
| nbu.navistri.com/v1/rates | $0.001 | verified | bought, did not deliver |
| api.marketintelligenceapi.com/api/v1/markets/funding-rates | $0.001 | verified | bought, delivered 2026-11-01 |
| x402.orthogonal.com/abstractapi/v1/live | $0.001 | verified | probes pass; not bought yet |
| nordata.hihat.workers.dev/valuta | $0.001 | verified | bought, delivered 2026-11-01 |
| tienda.textokit.store/api/fx-rates | $0.001 | verified | bought, did not deliver |
| agent-tools.jbarkules.workers.dev/v1/fx/rates | $0.001 | verified | bought, did not deliver |
| currency-api-production-4a8d.up.railway.app/rates/historical | $0.001 | verified | bought, did not deliver |
| x402.orthogonal.com/exchange-rates/v1/live | $0.001 | verified | probes pass; not bought yet |
| api.stablecoingateways.com/v1/fx/rates | $0.001 | verified | bought, delivered 2026-11-01 |
| x402.orthogonal.com/abstractapi/v1/convert | $0.001 | verified | probes pass; not bought yet |
| opendata402.com/v1/fx/latest | $0.001 | verified | bought, did not deliver |
| agents.crowdspark.me/v1/fx/rates | $0.001 | verified | bought, did not deliver |
| tools.halowerk.com/v1/currency/normalize | $0.001 | verified | bought, delivered 2026-11-01 |
| wallet-services-poc-clean-mainnet.3hz-services.workers.dev/fx-rate | $0.001 | verified | bought, delivered 2026-11-01 |
| api.stablecoingateways.com/v1/fx/convert | $0.001 | verified | bought, delivered 2026-11-01 |
All of them, as data: api.nohumans.directory/v1/discover?category=data.fx&limit=50. Live figures, as of 2026-11-07 02:39 UTC.
For agents
Search this kind of API from your agent, free, no key. MCP server https://api.nohumans.directory/mcp, tool
find_paid_service with {"category": "data.fx", "query": "what you need"}, or REST:
GET https://api.nohumans.directory/v1/discover?category=data.fx&q=<what you need>
Before paying any endpoint, check its record: how, and when not to pay.
Sell one
156 sellers already list Currency exchange rate APIs here, at a typical $0.005 a call. Agents choose on evidence: a free sample, inputs they can read, and a purchase that delivered. Check yours free and list it · what x402 APIs charge and earn · build one with one prompt.
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Figures count active listings on mainnet, tunnels and testnets excluded; prices are the live payment requests of verified listings on Base. Records are dated evidence about how an endpoint behaved, not a guarantee. How we check.