DeFi liquidity data for MASK token, paid per-request via x402 on Base.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the MASK token. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure APIs, all priced at $0.02 per request and settled via the x402 protocol using USDC on the Base network.
The specific endpoint `/api/v1/defi/MASK/liquidity` accepts POST requests and returns JSON. Payment is handled inline via the x402 payment header — no API keys, accounts, or rate limits are required. The x402 challenge confirms the endpoint is live, requesting up to 20,000 base units of USDC (i.e., $0.02) per call, paid to a specified wallet address on Base. The payment scheme is "exact" with a 300-second timeout.
Documentation on the site is extremely thin — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawled material. The endpoint's purpose (MASK token liquidity data) is inferred solely from the URL path and the platform's Finance & Web3 category listing. The actual request body format and response structure are unknown.
Capabilities
Use cases
- —Querying current liquidity metrics for the MASK token across DeFi protocols
- —Building dashboards that display MASK token liquidity depth
- —Automated trading bots that check MASK liquidity before executing trades
- —Portfolio analytics tools needing real-time DeFi liquidity snapshots
Fit
Best for
- —Agents or bots needing on-demand MASK liquidity data without API key setup
- —Developers prototyping DeFi tools who want pay-per-call pricing
- —x402-compatible clients on the Base network
Not for
- —Users needing comprehensive multi-token liquidity aggregation in a single call
- —Anyone requiring detailed API documentation or guaranteed SLAs before integrating
- —Non-crypto use cases unrelated to DeFi data
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/MASK/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The endpoint's actual behavior and data format are entirely unknown beyond what the URL path implies.
Warnings
- —No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or schema definition found; request body format and response structure are unknown
- —The endpoint path suggests MASK token liquidity data but this is inferred from the URL only
- —This specific /defi/MASK/liquidity endpoint is not listed on the site's homepage API catalog
Citations
- —The endpoint returns a 402 challenge requesting up to 20,000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)https://lowpaymentfee.com/api/v1/defi/MASK/liquidity
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on the Base networkhttps://lowpaymentfee.com
- —The site lists Finance & Web3 APIs including price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs