1inch liquidity data via x402 micropayment on Base — $0.02/request, no API key needed.
What it does
This endpoint at lowpaymentfee.com provides DeFi liquidity data for the 1inch protocol, accessible via the x402 payment protocol. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header with each request.
The endpoint is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request. The specific endpoint `/api/v1/defi/1INCH/liquidity` sits in the Finance & Web3 category and is expected to return JSON. The x402 challenge confirms the endpoint is live, accepts POST requests, settles in USDC (contract 0x8335…2913) on Base, and has a 300-second payment timeout.
Documentation is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the liquidity endpoint accepts or returns. Callers will need to experiment or contact the provider to understand the expected request body and response format.
Capabilities
Use cases
- —Querying current 1inch protocol liquidity pool data for trading decisions
- —Integrating real-time DeFi liquidity metrics into dashboards or bots
- —Agent-driven portfolio analysis requiring on-demand liquidity snapshots
Fit
Best for
- —Developers needing quick, keyless access to 1inch liquidity data
- —AI agents that can pay per-call via x402 on Base
- —Low-volume or sporadic DeFi data consumers who want no subscription commitment
Not for
- —High-frequency trading requiring sub-second latency and bulk data (no documented rate guarantees)
- —Users who need comprehensive API documentation or SDKs before integrating
- —Anyone unable to settle payments in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/1INCH/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what 'liquidity' data is actually returned. No OpenAPI spec, no examples, and all doc pages render only a wallet-connect prompt.
Warnings
- —No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'
- —No request or response schema provided; callers must guess at the expected payload
- —The specific data returned by the 1INCH liquidity endpoint is undocumented
- —No OpenAPI or machine-readable spec found
Citations
- —Endpoint returns 402 with x402 challenge accepting USDC on Base networkhttps://lowpaymentfee.com/api/v1/defi/1INCH/liquidity
- —maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02https://lowpaymentfee.com/api/v1/defi/1INCH/liquidity
- —All APIs priced at $0.02/request with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/defi/1INCH/liquidity