DeFi liquidity data for ANKR via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the ANKR token. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure APIs, all gated behind the x402 payment protocol on the Base network. Each request costs $0.02 in USDC (20,000 base units of USDC on Base, which has 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to each POST request.
The specific endpoint `/api/v1/defi/ANKR/liquidity` is not listed on the site's main landing page among the showcased APIs, but it follows the same URL pattern and returns a valid x402 402 challenge with identical pricing and payment parameters. The response MIME type is `application/json`. No detailed documentation, request schema, or response schema was found in the crawled pages — the docs, pricing, and README pages all rendered only a "Connect wallet" prompt with no further content.
Because no OpenAPI spec, request/response schemas, or usage examples are available, the exact fields accepted or returned by this endpoint are unknown. The platform advertises simple per-request pricing at $0.02 with no minimums, no commitments, and no API keys. Payment settles in USDC on the Base L2 network to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.
Capabilities
Use cases
- —Querying current liquidity metrics for the ANKR token across DeFi protocols
- —Building dashboards that display ANKR liquidity depth in real time
- —Automated trading bots that need liquidity data before executing swaps
- —Portfolio analytics tools monitoring DeFi liquidity conditions
Fit
Best for
- —Agents or bots needing on-demand ANKR liquidity data without API key management
- —Developers prototyping DeFi tools who want instant pay-per-call access
- —Low-volume consumers who prefer micropayments over monthly subscriptions
Not for
- —Users needing detailed API documentation or guaranteed SLAs before integrating
- —High-frequency trading systems where $0.02 per call adds up significantly
- —Non-ANKR or multi-token liquidity queries (endpoint is ANKR-specific)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/ANKR/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. However, no OpenAPI spec, request/response schema, documentation, or usage examples are available. The specific /defi/ANKR/liquidity path is not even listed on the site's landing page, and all doc pages render only a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No API documentation, request schema, or response schema found — all doc pages show only 'Connect wallet'
- —This specific endpoint (/api/v1/defi/ANKR/liquidity) is not listed among the site's advertised APIs
- —Exact response format and fields are unknown — integrate with caution
- —No OpenAPI or ai-plugin manifest available
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/defi/ANKR/liquidity
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —Payment asset is USDC at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/defi/ANKR/liquidity