Pay-per-call PayPal payments endpoint on Base via x402, $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides a PayPal payments API accessible via the x402 payment protocol. The specific resource `/api/v1/paypal/payments/91` is labeled "Premium API Access" and accepts POST requests. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The broader lowpaymentfee.com platform advertises a range of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto data feeds, and utility services, all priced uniformly at $0.02 per request. However, the specific functionality behind this particular PayPal payments endpoint is not documented beyond its title. The crawled docs, pricing, and README pages all returned only a "Connect wallet" prompt with no additional technical documentation or schema details.
Because there is no OpenAPI spec, request/response schema, or usage documentation available, the actual behavior of this endpoint — what inputs it expects and what it returns — remains unclear. Agents should treat this as a lightly documented endpoint and test carefully before relying on it in production workflows.
Capabilities
Use cases
- —Programmatic PayPal payment initiation via crypto micropayments
- —Agent-driven payment workflows without API key management
- —Pay-per-call access to payment infrastructure
Fit
Best for
- —Agents needing PayPal payment functionality without traditional API keys
- —Developers who want to pay per request with USDC on Base
- —Crypto-native applications integrating PayPal payment rails
Not for
- —Users who need detailed API documentation or guaranteed SLAs
- —High-volume payment processing requiring bulk pricing
- —Applications that cannot settle payments on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/91 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live (returns a valid x402 402 challenge) and pricing is clear ($0.02 USDC on Base), but there is no API documentation, no request/response schema, and no explanation of what the PayPal payments endpoint actually does. The docs, pricing, and README pages all returned only a wallet-connect prompt with no content.
Warnings
- —No request or response schema available — actual endpoint behavior is unknown
- —All documentation pages (docs, pricing, README, api) returned only 'Connect wallet' with no technical content
- —The specific purpose of '/api/v1/paypal/payments/91' (resource ID 91) is unexplained
- —No OpenAPI spec or ai-plugin manifest found
Citations
- —Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/paypal/payments/91
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/paypal/payments/91