Get the current USDC token price via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns the current price of USDC via a pay-per-call x402 protocol. It is part of a broader suite of APIs offered by the same provider covering data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.
The specific endpoint `/api/v1/tokens/USDC/price` is a POST endpoint that returns JSON. Payment is handled via the x402 exact-payment scheme: callers attach an `X-PAYMENT` header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the payee address on Base. No API keys or rate limits are advertised — access is gated purely by micropayment.
Documentation beyond the landing page is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, update frequency, and response format are unknown.
Capabilities
Use cases
- —Fetching the current USDC price in an automated trading or DeFi workflow
- —Agents that need real-time token pricing without managing API keys
- —Pay-per-call price checks from smart-contract or bot pipelines
Fit
Best for
- —AI agents needing keyless, on-demand token price data
- —Developers prototyping x402 micropayment integrations
- —Low-volume, pay-as-you-go crypto price lookups
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need detailed historical price data or OHLCV candles (not described)
- —Anyone needing comprehensive documentation or guaranteed uptime SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/USDC/price \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no example request or response, and all documentation pages beyond the landing page are empty ('Connect wallet' only). The actual response schema and data source are completely unknown, making this effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All doc/pricing/API pages return only a 'Connect wallet' prompt with no content
- —Data source and update frequency for USDC price are undocumented
- —No SLA, rate-limit, or uptime guarantees documented
Citations
- —Endpoint returns 402 with x402 challenge, maxAmountRequired 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/tokens/USDC/price
- —All APIs priced at $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/tokens/USDC/price