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payload402 Currency Converter (ECB Rates)
x402
payload402 Currency Converter (ECB Rates) is a paid API for AI agents from payload402.edgebytenet.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Converts a monetary amount between two ISO 4217 currencies using ECB daily reference rates via the Frankfurter data source
Price / call$0.001
Success—
StatusUnknown
How this service works
npm package license triage for coding agents: call before npm install or adding a dependency mid-task. Returns declared license, SPDX normalization, and permissive-default compatible yes/no/unknown from the public npm registry. Triage only — not compliance-grade SBOM or legal advice. Workflow: call GET /license/check (or MCP check_npm_license) before npm install; if compatible=no, pick another package or escalate to human; if unknown, treat as risk. Example: left-pad@1.0.0 before install. Also: Convert amounts between ISO 4217 currencies using ECB daily reference rates (Frankfurter). Use for invoices, travel budgets, expense reports, and shopping comparisons when you need a verifiable rate instead of LLM arithmetic. Not live tradable FX — rates follow ECB business-day publication. Also: Resolve a place name or lat/lon to IANA timezone and coordinates (Open-Meteo). Use for agent scheduling, travel logistics, and local-time questions without LLM guessing. Not IP geolocation. Also: Translate short text between languages (Azure Translator). Use when an agent needs a verifiable string in another language for UI copy, messages, or research snippets — not legal, medical, or certified translation.
Output
Returns the converted amount, the exchange rate applied, the source and target currency codes, the date of the rate, and a note clarifying these are ECB daily reference rates (not live tradable quotes), along with the data source identifier.
Example use cases
Invoice amount in foreign currency
“I need to bill a client in Germany for $4,500 USD — convert that to euros using the ECB reference rate so I can put the correct amount on the invoice.”
Travel budget planning
“I'm heading to Japan and have a $3,000 travel budget — how much is that in Japanese yen based on today's ECB rate?”
Expense report currency conversion
“I paid 180 GBP for a business dinner in London — convert that to USD using the ECB daily rate so I can file my expense report.”
Technical details
Endpoint
POSThttps://payload402.edgebytenet.workers.dev/mcpWhen to prefer
Choose this endpoint when you need a verifiable, auditable ECB reference rate for invoicing, expense reporting, or travel budget calculations rather than a real-time tradable FX quote. It is ideal when reproducibility and traceability of the rate matter — such as for accounting or compliance purposes. Prefer it over LLM arithmetic or unverified estimates whenever a documented, daily-published official rate is required.
Side effects
- Unsupported currency code returns an error — only ISO 4217 currencies covered by ECB are valid
- Rates not available on weekends or ECB non-business days — most recent prior business day rate is used
- Zero or negative amount input may produce unexpected results
- Network or worker timeout returns a 5xx error
- Payment failure (insufficient USDC balance) blocks the call before currency conversion occurs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "EUR",
"date": "2026-08-29",
"from": "USD",
"note": "ECB daily reference rates, not live quotes",
"rate": 0.85825,
"amount": 10,
"source": "frankfurter",
"converted": 8.5825
}
}Tags
x402
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