MKR liquidity data via x402 micropayment on Base, $0.02 per request in USDC.
What it does
This endpoint provides MKR (Maker) DeFi liquidity data behind an x402 paywall on the Base network. It is part of a broader suite of APIs offered by lowpaymentfee.com covering data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.
The specific endpoint at `/api/v1/defi/MKR/liquidity` accepts POST requests and returns JSON. Payment is settled on-chain via USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on the Base L2 network using the x402 "exact" payment scheme. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment recipient address is `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`, and the payment timeout is 300 seconds.
Note that while the endpoint is live and returns a valid 402 challenge, there is no public documentation describing the request body schema, the response format, or what specific liquidity metrics are returned. The crawled docs, pricing, and README pages all rendered only a "Connect wallet" prompt with no additional content. The endpoint is not listed on the provider's homepage (which lists other DeFi, analytics, AI, and utility endpoints but not this specific MKR liquidity route). Users should expect DeFi liquidity data for MKR but should be prepared for an undocumented response structure.
Capabilities
Use cases
- —Querying real-time MKR liquidity pool data for trading decisions
- —Monitoring DeFi liquidity depth for Maker across protocols
- —Integrating MKR liquidity metrics into automated trading bots
- —Building dashboards that track Maker DeFi liquidity
Fit
Best for
- —Agents or bots needing on-demand MKR liquidity snapshots without API key management
- —Developers prototyping DeFi analytics with low per-call costs
- —Pay-per-use access to Maker liquidity data on Base
Not for
- —Users needing detailed API documentation or guaranteed response schemas
- —High-frequency bulk data retrieval where per-call costs add up
- —Historical MKR liquidity data (no evidence of historical query support)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/MKR/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing, but there is zero documentation on request/response schemas, no examples, and the endpoint is not even listed on the provider's own homepage. Docs pages returned only 'Connect wallet' with no content.
Warnings
- —No request body schema documented — callers must guess or reverse-engineer the expected POST payload.
- —No response schema or example response available anywhere in crawled material.
- —This specific /api/v1/defi/MKR/liquidity endpoint is not listed on the provider's homepage; it may be unlisted, experimental, or deprecated.
- —All documentation pages (docs, pricing, README, api) returned only 'Connect wallet' with no useful content.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/defi/MKR/liquidity
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/defi/MKR/liquidity
- —The provider advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —The provider lists finance/Web3, AI/ML, analytics, and infrastructure APIs but does not list this specific MKR liquidity endpointhttps://lowpaymentfee.com