BNB liquidity data via x402 micropayment on Base network, $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for BNB, accessible via the x402 payment protocol. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to a POST request and receive a JSON response.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services, all priced at $0.02 per request and settled on the Base L2 network using USDC. The specific endpoint `/api/v1/defi/BNB/liquidity` is categorized under the Finance & Web3 section and likely returns liquidity pool or liquidity-related metrics for BNB.
Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no detailed description of what fields are returned. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual response payload structure is unknown. Callers should expect a JSON response but will need to experiment to discover the exact schema.
Capabilities
Use cases
- —Querying real-time BNB liquidity pool data for trading bots
- —Monitoring BNB DeFi liquidity for portfolio dashboards
- —Feeding BNB liquidity metrics into automated DeFi strategies
- —Comparing BNB liquidity across protocols
Fit
Best for
- —Agents or bots that need on-demand BNB liquidity data without managing API keys
- —Developers building DeFi dashboards who want simple pay-per-call pricing
- —x402-compatible clients on the Base network looking for cheap DeFi data
Not for
- —Users who need detailed API documentation or guaranteed response schemas before integrating
- —High-volume consumers who need bulk/subscription pricing rather than per-call payments
- —Anyone needing liquidity data for tokens other than BNB from this specific endpoint
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/BNB/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 x402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages returned only 'Connect wallet' with no usable content. The actual response format and fields are completely unknown.
Warnings
- —No API documentation available — docs, API, pricing, and README pages all return only a 'Connect wallet' prompt with no content.
- —No OpenAPI or output schema provided; response structure is unknown.
- —The endpoint path suggests BNB liquidity data but no details on what metrics or fields are returned.
- —This specific endpoint (/api/v1/defi/BNB/liquidity) is not listed on the provider's homepage among the advertised APIs, raising questions about its completeness or support status.
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/defi/BNB/liquidity
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/defi/BNB/liquidity
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com