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 2026-10-27).

Converts a monetary amount between two ISO 4217 currencies using ECB daily reference rates via the Frankfurter data source

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

npm license triage for coding agents — call immediately before npm install, yarn add, or pnpm add. Returns npm-declared license, SPDX id, and permissive-default compatible (yes | no | unknown) so the agent can proceed, swap package, or escalate. Not SBOM, not legal advice. Free taste: GET /license/check/preview (same JSON, $0), then pay GET /license/check or MCP check_npm_license for the package you will install. Workflow: (1) GET /license/check/preview free to see JSON shape; (2) GET /license/check or MCP check_npm_license before install; compatible=no → swap package; unknown → escalate. Example: left-pad@1.0.0. Batch lockfile: GET /license/lockfile. Also: Batch npm license triage for coding agents — pass packages from a lockfile (name@version list, max 20). Returns per-package SPDX + permissive-default compatible, rollup counts, and overall yes|no|unknown. Not a compliance SBOM. Use before merge or mass install; single-package use GET /license/check. 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: English Wikipedia fact lookup: search by query or exact title, returns intro extract as plain text. For agents that need a grounded summary before deeper web search. Not a substitute for primary sources.

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

GEThttps://payload402.edgebytenet.workers.dev/mcp?utm_source=zero.xyz

When 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
  }
}

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