x402basequality 0.30

USDT OHLCV candlestick 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/crypto/USDT/ohlcv

What it does

This endpoint at lowpaymentfee.com provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the USDT cryptocurrency pair. It is part of a broader suite of finance and crypto APIs offered by the same provider, all gated behind the x402 payment protocol on the Base network.

The endpoint accepts POST requests and is paid per-call using USDC on Base. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (which has 6 decimals), equating to $0.02 per request. No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The payment settles to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.

Documentation is extremely sparse. The provider's landing page lists many endpoints across data/analytics, AI/ML, finance/web3, and infrastructure categories, all at $0.02 per request. However, no request body schema, response schema, or usage examples are documented for any endpoint. The specific parameters accepted by the OHLCV endpoint (e.g., time range, interval, trading pair) are unknown from the available material. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content.

Capabilities

crypto-ohlcvusdt-market-datax402-paymentbase-networkusdc-settlementper-request-pricing

Use cases

  • —Fetching USDT OHLCV candlestick data for trading bots or analytics dashboards
  • —Programmatic access to USDT price history without API key management
  • —Agent-driven crypto market analysis with per-call micropayments

Fit

Best for

  • —Agents or bots that need on-demand USDT price candle data
  • —Developers wanting keyless, pay-per-use crypto market data
  • —x402-compatible clients on the Base network

Not for

  • —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
  • —Users needing comprehensive multi-asset OHLCV data with well-documented schemas
  • —Anyone without USDC on Base or an x402-compatible payment client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/crypto/USDT/ohlcv \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/crypto/USDT/ohlcv
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no documented request schema, response schema, or usage examples. The docs pages are empty beyond a wallet-connect prompt. The actual parameters and response format for the OHLCV endpoint are entirely unknown.

Warnings

  • —No request body schema documented — required parameters for OHLCV queries are unknown
  • —No response schema or example responses available
  • —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
  • —The specific trading pair, time intervals, and other query parameters are not documented anywhere in the crawl material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:32:03Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/APg9na
USDT OHLCV candlestick data via x402 micropayment on Base, $0.02 per request. — Clawmart · Clawmart