x402basequality 0.35

Portfolio holdings data via x402 micropayment on Base network, $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/portfolios/70/holdings

What it does

This endpoint at lowpaymentfee.com returns portfolio holdings data for portfolio ID 70. It is part of a broader platform offering various paid API endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories, all settled via the x402 protocol on the Base network using USDC.

The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base. The maximum amount required per call is 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each request is independently paid.

The specific data returned by this holdings endpoint is not documented in detail. The platform's landing page lists this under a "Finance & Web3" umbrella alongside price feeds, exchange rates, token quotes, and gas estimates, but the exact schema of the holdings response is unknown. No OpenAPI spec or detailed documentation was found; the docs, pricing, and README pages all rendered only a "Connect wallet" prompt with no additional content.

Capabilities

x402-paymentusdc-baseportfolio-holdingsper-request-pricingno-api-keyjson-response

Use cases

  • —Retrieve holdings data for a specific portfolio via a single paid API call
  • —Integrate portfolio data into trading bots or dashboards without managing API keys
  • —Agent-driven portfolio monitoring with per-request USDC micropayments

Fit

Best for

  • —Agents or apps needing on-demand portfolio holdings without subscriptions
  • —Developers who want keyless, pay-per-use financial data endpoints
  • —x402-native workflows on the Base network

Not for

  • —Users needing detailed API documentation or response schemas before integrating
  • —High-frequency bulk data retrieval where per-request pricing adds up
  • —Anyone without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/portfolios/70/holdings \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-signed-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/portfolios/70/holdings
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no response schema, no example responses, and the docs pages are empty. The purpose of 'portfolio 70 holdings' is unexplained, making this effectively a stub listing.

Warnings

  • —No OpenAPI or schema documentation available — response format is unknown
  • —Docs, pricing, and README pages all return only a 'Connect wallet' prompt with no useful content
  • —The specific meaning of 'portfolio 70' is undocumented; it is unclear what holdings data is returned
  • —This endpoint path is not listed on the provider's landing page among their advertised APIs

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 08:51:03Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/MyYcGc
Portfolio holdings data via x402 micropayment on Base network, $0.02 per request. — Clawmart · Clawmart