DeFi liquidity data for HNT (Helium) via pay-per-call x402 on Base network.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the HNT (Helium) token. It is part of a broader platform offering data & analytics, AI/ML, finance/Web3, and infrastructure APIs, all accessible via the x402 payment protocol on the Base network with no API keys, no rate limits, and no sign-up required.
The specific endpoint `/api/v1/defi/HNT/liquidity` accepts POST requests and returns JSON. Payment is settled in USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a cost of $0.02 per request (20,000 base units with 6 decimals). The x402 challenge was successfully captured, confirming the endpoint is live. The payment timeout is 300 seconds.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the liquidity response contains. The endpoint is discoverable and functional, but consumers should expect to experiment to understand the response format. The platform advertises uniform $0.02 pricing across all endpoints with no minimums or commitments.
Capabilities
Use cases
- —Querying current liquidity metrics for HNT across DeFi protocols
- —Building dashboards that track Helium token liquidity over time
- —Automated trading bots that need liquidity depth data before executing HNT trades
- —Research and analytics on DeFi liquidity distribution for Helium
Fit
Best for
- —Agents or bots needing on-demand HNT liquidity snapshots without API key management
- —Developers prototyping DeFi analytics with minimal setup
- —Pay-as-you-go access to crypto liquidity data at low cost
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users needing detailed API documentation or response schema before integrating
- —Historical liquidity data or batch queries (no evidence of support)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/HNT/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond the landing page listing. The specific endpoint (/api/v1/defi/HNT/liquidity) is not even listed on the homepage, making it harder to verify its intended behavior. This is effectively a stub listing.
Warnings
- —No API documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
- —No request body schema or response schema documented anywhere
- —The /api/v1/defi/HNT/liquidity endpoint is not listed among the advertised APIs on the homepage, raising questions about its status
- —Response format and fields are completely unknown — consumers must experiment
Citations
- —Endpoint returns HTTP 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/defi/HNT/liquidity
- —Payment is 20,000 base units of USDC (6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/defi/HNT/liquidity
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/defi/HNT/liquidity