HBAR DeFi liquidity data via pay-per-call x402 on Base (USDC, $0.02/request)
What it does
This endpoint provides HBAR (Hedera) DeFi liquidity data through a pay-per-request model using the x402 protocol. It is hosted at lowpaymentfee.com, a platform offering a broad catalog of data, AI, finance, and utility APIs — all priced at $0.02 per request and settled in USDC on the Base network.
The specific endpoint `/api/v1/defi/HBAR/liquidity` accepts POST requests and returns JSON. Based on the x402 challenge, the maximum amount required per call is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 exact scheme with no API keys, no rate limits, and no upfront commitments — the caller simply includes an X-PAYMENT header with a valid payment proof.
Documentation beyond the landing page is extremely sparse: the /docs, /pricing, /api, 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 liquidity response contains. The endpoint is confirmed live (402 challenge returned), but the actual data shape and coverage are unknown.
Capabilities
Use cases
- —Querying current HBAR DeFi liquidity pool metrics for trading decisions
- —Integrating HBAR liquidity data into a DeFi aggregator or dashboard
- —Automated agents monitoring Hedera ecosystem liquidity in real time
Fit
Best for
- —Developers needing on-demand HBAR DeFi liquidity snapshots without API key management
- —Agents or bots that can pay per call via x402 on Base
- —Low-volume or sporadic queries where $0.02/request is cost-effective
Not for
- —High-frequency trading requiring sub-second latency and bulk data (no documented batch endpoint)
- —Users who need detailed documentation or guaranteed SLA before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/HBAR/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"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 request/response examples, and all documentation pages returned only a wallet-connect stub. The actual data shape and coverage of the HBAR liquidity response are entirely unknown.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all return only a 'Connect wallet' prompt with no content
- —No OpenAPI or JSON schema describing request parameters or response fields
- —The endpoint appears on a platform with a very broad, generic API catalog; data provenance and reliability are unclear
- —This specific /defi/HBAR/liquidity path is not listed on the landing page's catalog, raising questions about its status
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, equaling $0.02https://lowpaymentfee.com/api/v1/defi/HBAR/liquidity
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base networkhttps://lowpaymentfee.com
- —Documentation pages (/docs, /pricing, /api, /README) contain only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs