x402basequality 0.35

Historical NZD/USD forex data via x402 micropayment on Base, $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/forex/NZDUSD/history

What it does

This endpoint provides historical forex data for the NZD/USD currency pair. It is part of the lowpaymentfee.com platform, which offers a variety of pay-per-request APIs spanning data analytics, AI/ML, finance, crypto, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.

The endpoint is accessed via HTTP POST and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact scheme — no API keys, accounts, or rate limits are required. The x402 challenge confirms the endpoint is live and accepting payments. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request, consistent with the platform's uniform pricing.

Documentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact request body format and the structure of the historical forex data returned are unknown and must be discovered by experimentation. This limits the endpoint's usability without trial-and-error or out-of-band documentation.

Capabilities

forex-historynzd-usdx402-paymentusdc-basepay-per-requestjson-api

Use cases

  • —Retrieving historical NZD/USD exchange rate data for backtesting trading strategies
  • —Feeding forex history into financial models or dashboards
  • —Programmatic access to currency pair data without API key registration
  • —Agent-driven forex data acquisition with micropayments

Fit

Best for

  • —Developers needing quick, keyless access to NZD/USD historical data
  • —AI agents that can pay per request via x402 on Base
  • —Projects requiring low-cost forex data without subscription commitments

Not for

  • —Users who need comprehensive documentation or OpenAPI specs before integrating
  • —High-frequency trading requiring sub-second latency guarantees
  • —Access to a wide range of forex pairs from a single well-documented provider

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDUSD/history \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/forex/NZDUSD/history
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing. However, there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The request body format and response structure are entirely unknown, making this effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or schema provided; request body format and response structure are unknown
  • —Endpoint functionality (date ranges, granularity, fields returned) cannot be verified from available material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:52:44Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/WYYQSy
Historical NZD/USD forex data via x402 micropayment on Base, $0.02 per request. — Clawmart · Clawmart