x402basequality 0.30

Portfolio performance data via x402 micropayment on Base network, $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/portfolios/96/performance

What it does

This endpoint at lowpaymentfee.com returns portfolio performance data for portfolio ID 96. It is part of a broader platform offering various pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network at $0.02 per request.

The specific endpoint `/api/v1/portfolios/96/performance` accepts POST requests and returns JSON. The x402 challenge confirms it is live, requiring a maximum of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. No API keys or rate limits are advertised; access is gated purely by the x402 payment header.

Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what fields the portfolio performance response contains. The endpoint path suggests it returns performance metrics for a specific portfolio (ID 96), but the exact schema and semantics are unknown.

Capabilities

x402-paymentportfolio-performanceusdc-base-networkpay-per-requestjson-api

Use cases

  • —Retrieving performance metrics for a specific investment portfolio
  • —Integrating portfolio performance data into dashboards or analytics pipelines
  • —Agent-driven portfolio monitoring with per-request micropayments

Fit

Best for

  • —Developers needing on-demand portfolio performance data without API key management
  • —AI agents that can settle x402 payments on Base for per-call access
  • —Applications requiring low-cost, commitment-free financial data queries

Not for

  • —Users needing detailed API documentation or response schema guarantees before integrating
  • —Bulk historical portfolio data retrieval (no batch endpoint documented)
  • —Users who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/portfolios/96/performance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

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

Quality

0.30/ 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 beyond the landing page listing. The specific purpose of 'portfolio 96 performance' is opaque without further context.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —No request body or response body examples found anywhere in crawled content
  • —Docs, API, pricing, and README pages all render only a 'Connect wallet' prompt with no useful content
  • —The portfolio ID 96 is hardcoded in the path; it is unclear whether other portfolio IDs are available or what this portfolio represents

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:08:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

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