x402basequality 0.35

DeFi liquidity data for ZRX via x402 micropayment on Base, $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/defi/ZRX/liquidity

What it does

This endpoint provides DeFi liquidity information for the ZRX (0x Protocol) token, accessible via the x402 payment protocol on the Base network. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML, finance/Web3, and infrastructure endpoints, all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.

The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a cost of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The x402 challenge confirms the endpoint is live and accepting payments to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum timeout of 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 detailed description of what fields the liquidity response contains or what parameters the POST body accepts. The endpoint's exact input schema and output fields must be discovered by calling it.

Capabilities

defi-liquidity-datazrx-tokenx402-micropaymentbase-networkusdc-settlementper-request-pricingno-api-key

Use cases

  • —Querying real-time DeFi liquidity depth for ZRX across protocols
  • —Building trading bots that need ZRX liquidity snapshots before executing swaps
  • —Monitoring ZRX market microstructure for analytics dashboards
  • —Integrating pay-per-call DeFi data into autonomous AI agents

Fit

Best for

  • —Agents or apps needing on-demand ZRX liquidity data without API key management
  • —Developers who want pay-per-request DeFi data settled in USDC on Base
  • —Low-volume or bursty workloads where subscription pricing is wasteful

Not for

  • —High-frequency trading requiring sub-second latency and bulk data (no documented rate guarantees)
  • —Users needing comprehensive multi-token liquidity data in a single call
  • —Anyone requiring detailed API documentation or SLAs before integration

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/defi/ZRX/liquidity \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Example

Request

{}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/defi/ZRX/liquidity
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documented request parameters, no example responses, and all documentation pages are empty beyond a wallet-connect prompt. The actual data returned by this endpoint is unknown.

Warnings

  • —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or JSON schema for request or response bodies
  • —Exact fields returned in the liquidity response are unknown and must be discovered empirically
  • —The broader platform lists many endpoint categories but none have documented schemas

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:08:34Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/XjsNxY
DeFi liquidity data for ZRX via x402 micropayment on Base, $0.02 per request. — Clawmart · Clawmart