BAL liquidity data via x402 micropayment on Base network for $0.02/request
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the BAL (Balancer) token. It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The endpoint is accessed via HTTP POST and is gated by the x402 payment protocol, settling in USDC on the Base network.
The x402 challenge confirms the endpoint is live and requires a maximum payment of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per request. No API keys or rate limits are advertised — access is granted purely through per-call micropayment. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.
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 the BAL liquidity endpoint accepts or returns. The endpoint path suggests it returns liquidity-related data for the Balancer (BAL) DeFi protocol, but the exact input parameters and response shape are unknown.
Capabilities
Use cases
- —Querying current liquidity metrics for Balancer (BAL) pools
- —Building DeFi dashboards that display BAL liquidity depth
- —Automated trading bots that need real-time BAL liquidity data
- —Portfolio analytics tools integrating multi-protocol liquidity info
Fit
Best for
- —Agents or bots needing on-demand BAL liquidity data without API key management
- —Developers prototyping DeFi tools who want instant pay-per-call access
- —Low-volume consumers who prefer micropayments over subscription plans
Not for
- —Users needing comprehensive DeFi analytics across many protocols in a single call
- —Anyone requiring detailed documentation or guaranteed SLAs before integration
- —High-volume consumers where per-request pricing may add up compared to flat-rate alternatives
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/BAL/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and no description of what the endpoint actually returns. The listing is effectively a stub with only the payment challenge as evidence of functionality.
Warnings
- —No OpenAPI schema or endpoint documentation available
- —Request body parameters and response shape are completely unknown
- —Docs, API, pricing, and README pages all render only a 'Connect wallet' prompt with no useful content
- —Endpoint functionality (what BAL liquidity data is returned) is inferred solely from the URL path
Citations
- —The endpoint returns HTTP 402 with x402 challenge requiring 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/defi/BAL/liquidity
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/defi/BAL/liquidity
- —All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The endpoint is categorized under Finance & Web3 on the provider's landing pagehttps://lowpaymentfee.com