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/96/holdings

What it does

This endpoint at lowpaymentfee.com provides access to portfolio holdings data (portfolio ID 96) through the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals).

The provider site lowpaymentfee.com hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 market data, and utility/infrastructure services — all priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments. The specific endpoint listed here (`/api/v1/portfolios/96/holdings`) is not featured on the provider's landing page catalog, suggesting it may be a specialized or less-promoted route. No OpenAPI schema, request/response examples, or detailed documentation were found in the crawl; the docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content.

Because no input or output schema is documented beyond the x402 challenge metadata, the exact request body format and response structure are unknown. Agents should expect a JSON response containing portfolio holdings information, but field names and nesting are not confirmed. The endpoint is live — it returned a well-formed 402 challenge during probing.

Capabilities

x402-paymentusdc-baseportfolio-holdingspay-per-requestjson-api

Use cases

  • —Retrieving current holdings for a specific investment portfolio
  • —Integrating portfolio position data into dashboards or analytics tools
  • —Automated portfolio monitoring by AI agents paying per request

Fit

Best for

  • —Agents needing on-demand portfolio holdings without API key management
  • —Micropayment-based access to financial position data
  • —Developers prototyping portfolio tools with zero signup friction

Not for

  • —Bulk or high-frequency portfolio data retrieval (no documented batch endpoint)
  • —Users who need detailed API documentation or guaranteed SLAs
  • —Accessing portfolios other than ID 96 (only this ID is confirmed)

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/portfolios/96/holdings \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/portfolios/96/holdings
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation. The specific portfolio holdings endpoint is not listed on the provider's own landing page. Effectively a stub listing.

Warnings

  • —No request or response schema documented — input format and output fields are unknown.
  • —This specific endpoint (/api/v1/portfolios/96/holdings) is not listed on the provider's public API catalog.
  • —All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content.
  • —Only portfolio ID 96 is confirmed; it is unclear whether other portfolio IDs are accessible.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:06:05Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

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