Pay-per-call PayPal payments endpoint on Base via x402, settling in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides a PayPal payments API accessible via the x402 payment protocol. The URL path (`/api/v1/paypal/payments/90`) suggests it handles PayPal payment operations, though the exact request/response schema is not documented in the available crawl material.
The endpoint is live and returns a valid x402 challenge. It accepts POST requests and settles payments on the Base network using USDC (contract `0x8335...2913`). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). This is consistent with the site's advertised flat pricing of $0.02 per request across all endpoints. The provider advertises no API keys, no rate limits, and instant access.
The provider site (lowpaymentfee.com) hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance/crypto, and infrastructure utilities — all at the same $0.02/request price point. However, documentation is essentially absent: the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. Without request/response schemas or usage examples, integrating this endpoint requires experimentation or prior knowledge of the expected PayPal payments payload format.
Capabilities
Use cases
- —Programmatically initiating or processing PayPal payments without API key management
- —Agent-driven PayPal payment workflows settled in USDC on Base
- —Integrating PayPal payment functionality into x402-compatible agent pipelines
Fit
Best for
- —Developers wanting keyless, pay-per-call PayPal payment access
- —AI agents that can settle micropayments in USDC on Base
- —Prototyping PayPal integrations without account setup
Not for
- —Production PayPal integrations requiring documented, stable schemas and SLAs
- —Users who need detailed API documentation or official PayPal SDK support
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/90 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The endpoint's actual functionality (what PayPal operation it performs, what inputs it expects) is entirely opaque.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README all show only 'Connect wallet'
- —No request or response schema provided; the exact PayPal operation and required payload are unknown
- —The endpoint path suggests PayPal integration but no details confirm what payment operation is performed or what 'payments/90' refers to
- —Provider hosts a large catalog of diverse endpoints all at $0.02 — unclear if all are fully functional
Citations
- —Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/paypal/payments/90
- —Site advertises $0.02/request flat pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/paypal/payments/90