DeFi liquidity data for QNT token, paid per-request via x402 on Base network.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the QNT (Quant) token. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure APIs, all payable per-request via the x402 protocol on the Base network using USDC.
The specific endpoint `/api/v1/defi/QNT/liquidity` accepts POST requests and returns JSON. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0.02 USD per request), consistent with the platform's uniform $0.02/request pricing across all endpoints. Payment is settled on-chain on Base to a specified wallet address, with no API keys, rate limits, or subscriptions required.
Documentation 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 schema, no request/response examples, and no description of what fields the liquidity endpoint returns. The endpoint is confirmed live (returns a valid 402 challenge), but the actual data schema and coverage details for QNT liquidity are unknown.
Capabilities
Use cases
- —Querying current liquidity pool data for QNT across DeFi protocols
- —Monitoring QNT liquidity depth for trading or arbitrage strategies
- —Integrating QNT liquidity metrics into dashboards or bots
Fit
Best for
- —Agents or bots needing on-demand QNT liquidity snapshots without API key management
- —Developers wanting pay-per-call DeFi data with crypto-native settlement
- —Low-volume or sporadic queries where subscription pricing is wasteful
Not for
- —High-frequency trading requiring sub-second latency and guaranteed SLAs
- —Users who need comprehensive multi-token liquidity data in a single call
- —Anyone without a Base-network USDC wallet for payment
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/QNT/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is zero documentation on request parameters, response schema, or what liquidity data is actually returned. Docs pages are empty. This is effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
- —No OpenAPI schema or request/response examples provided
- —The specific endpoint /api/v1/defi/QNT/liquidity is not listed on the provider's homepage; only broader categories are shown
- —Actual data quality, freshness, and coverage for QNT liquidity are completely unknown
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/defi/QNT/liquidity
- —Platform-wide pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/defi/QNT/liquidity