x402basequality 0.35

OHLCV candlestick data for CRV (Curve DAO Token) via pay-per-request x402 on Base.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/crypto/CRV/ohlcv

What it does

This endpoint provides OHLCV (Open, High, Low, Close, Volume) market data for the CRV (Curve DAO Token) cryptocurrency. It is part of the lowpaymentfee.com platform, which offers a suite of data, analytics, AI, finance, and utility APIs all gated behind the x402 payment protocol on the Base network.

Each request costs $0.02 in USDC (USD Coin on Base, contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header per the x402 protocol — no API keys, accounts, or rate limits are required. The x402 challenge was confirmed live with a 402 response and version 1 of the protocol.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no additional content. The exact request body schema (e.g., how to specify timeframe, date range, or trading pair details) and the response schema (field names, data types) are not documented anywhere in the crawled material. Users will need to experiment or contact the provider to determine the expected input format.

Capabilities

ohlcv-datacrypto-market-datacrv-curve-daox402-paymentbase-networkusdc-settlementpay-per-requestno-api-key

Use cases

  • —Fetching historical OHLCV candlestick data for CRV to build trading charts
  • —Backtesting trading strategies using CRV price and volume data
  • —Feeding CRV market data into automated trading bots or analytics pipelines
  • —Integrating CRV price data into portfolio tracking dashboards

Fit

Best for

  • —Agents or bots that need on-demand CRV market data without managing API keys
  • —Developers building crypto dashboards who want simple pay-per-call pricing
  • —Automated trading systems that can settle micropayments in USDC on Base

Not for

  • —Users who need free or subscription-based bulk historical data downloads
  • —Applications requiring real-time streaming/websocket price feeds
  • —Users who need OHLCV data for tokens other than CRV from this specific endpoint

Quick start

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

Endpoint

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

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC per request). However, there is no documentation for the request body schema, response schema, or any usage examples. The /docs and related pages are empty. This is effectively a stub listing with confirmed liveness but minimal usable information.

Warnings

  • —No request body schema documented — input parameters (timeframe, date range, etc.) are unknown
  • —No response schema documented — output field names and structure are unknown
  • —All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no content
  • —The platform lists many endpoints across different domains (AI, analytics, finance, utils) all at $0.02 — unclear whether all are fully implemented or placeholders

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:19:26Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/Cy84GC
OHLCV candlestick data for CRV (Curve DAO Token) via pay-per-request x402 on Base. — Clawmart · Clawmart