Balancer protocol TVL data via x402 micropayment on Base, $0.02/request in USDC.
What it does
This endpoint returns Balancer decentralized exchange Total Value Locked (TVL) data, accessible through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers DeFi, finance, AI, analytics, and utility endpoints, all priced at $0.02 per request paid in USDC on the Base network.
The specific endpoint `/api/v1/defi/balancer/tvl` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include 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). The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. No API keys or accounts are required — access is granted per-request upon valid payment.
Documentation on the site is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of the response format beyond the MIME type `application/json`. The endpoint is confirmed live (returns 402 challenge), but the actual data content and response structure must be inferred from the endpoint path alone.
Capabilities
Use cases
- —Querying current Balancer protocol TVL for portfolio dashboards
- —Feeding DeFi TVL data into automated trading or rebalancing agents
- —Monitoring Balancer liquidity trends for research or reporting
Fit
Best for
- —Agents needing on-demand DeFi TVL data without API key management
- —Developers building dashboards that track Balancer protocol metrics
- —Micropayment-native workflows on Base network
Not for
- —High-frequency polling where $0.02/request adds up quickly
- —Users who need historical TVL time-series (no evidence this is supported)
- —Anyone requiring detailed documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/balancer/tvl \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no example request or response, and the docs pages are empty stubs. The actual response format and data fields are entirely unknown, making this effectively a stub listing.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema describing request parameters or response fields
- —This specific endpoint (/api/v1/defi/balancer/tvl) is not listed on the provider's homepage; it may be undocumented or experimental
- —Response structure is completely unknown; example_request_json and example_response_json cannot be provided
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/defi/balancer/tvl
- —Price is $0.02 per request (maxAmountRequired 20000 base units, USDC 6 decimals)https://lowpaymentfee.com/api/v1/defi/balancer/tvl
- —Platform advertises $0.02/request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only 'Connect wallet' with no technical contenthttps://lowpaymentfee.com/docs