Solana liquidity data via x402 micropayment on Base network, $0.02 per request.
What it does
This endpoint provides DeFi liquidity data for Solana (SOL) through a pay-per-request model using the x402 protocol. Payment is settled in USDC on the Base network at $0.02 per call (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid payment proof to access the data.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers various API categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced uniformly at $0.02 per request. The specific endpoint at `/api/v1/defi/SOL/liquidity` is focused on Solana DeFi liquidity information, though detailed documentation on the response schema is not publicly available.
The x402 challenge confirms the endpoint is live, accepts POST requests, and returns application/json. Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The maximum timeout for payment verification is 300 seconds.
Capabilities
Use cases
- —Querying current Solana liquidity pool metrics for trading bots
- —Monitoring DeFi liquidity changes on Solana for portfolio management
- —Integrating Solana liquidity data into dashboards or analytics platforms
- —Agent-driven DeFi research requiring on-demand liquidity snapshots
Fit
Best for
- —AI agents needing on-demand Solana DeFi liquidity data without API key management
- —Developers building Solana DeFi dashboards with pay-as-you-go pricing
- —Automated trading systems that need liquidity checks before executing swaps
Not for
- —High-frequency trading requiring sub-second latency (300s payment timeout may add overhead)
- —Users who need detailed historical liquidity data (no evidence of historical endpoints)
- —Non-crypto use cases unrelated to DeFi liquidity
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/SOL/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, but there is no documentation on request parameters, response schema, or what specific liquidity data is returned. The docs, pricing, and API pages all just show 'Connect wallet' with no useful content. This is effectively a stub listing with confirmed liveness but minimal usable detail.
Warnings
- —No documentation available for request parameters or response schema
- —The /api/v1/defi/SOL/liquidity path is not listed on the provider's homepage — only generic categories are shown
- —All doc/pricing/API pages return only 'Connect wallet' with no substantive content
- —Response format and data fields are entirely unknown
Citations
- —Endpoint returns 402 with x402 challenge accepting USDC on Base network at 20000 base unitshttps://lowpaymentfee.com/api/v1/defi/SOL/liquidity
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/defi/SOL/liquidity