x402-gated email data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides premium API access to an email-related resource (specifically `/api/v1/emails/96`) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all priced at $0.02 per request.
Payment is settled on the Base network using USDC (contract `0x8335…2913`). The x402 challenge advertises a `maxAmountRequired` of 20,000 base units, which at 6 decimals equals $0.02. No API keys or rate limits are required; callers simply attach an `X-PAYMENT` header with a valid x402 payment proof. The endpoint accepts HTTP POST and returns `application/json`.
The specific functionality of `/api/v1/emails/96` is not documented beyond the generic label "Premium API Access." The crawled site pages (docs, pricing, README) all render only a "Connect wallet" prompt with no further documentation. Because the endpoint path includes a numeric ID (`96`), it likely retrieves or processes data related to a specific email record, but this is speculative. The platform advertises no API keys, no rate limits, and instant access.
Capabilities
Use cases
- —Retrieving email-related data on a per-request payment basis
- —Integrating pay-per-call email lookups into agent workflows
- —Accessing premium email data without subscription or API key management
Fit
Best for
- —Agents needing one-off email data lookups without signup
- —Developers wanting frictionless pay-per-request access on Base
- —Workflows requiring no-commitment, no-rate-limit API calls
Not for
- —Bulk email processing at high volume (no documented batch support)
- —Users who need detailed API documentation before integrating
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/emails/96 \
-H "X-PAYMENT: <x402-payment-proof>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is essentially no documentation for this specific endpoint. The docs, pricing, and README pages all render only a wallet-connect prompt. The purpose of /api/v1/emails/96 is unknown beyond the generic 'Premium API Access' label, and no request/response schemas are available.
Warnings
- —No documentation available — all doc pages render only 'Connect wallet'
- —The specific functionality of /api/v1/emails/96 is undocumented; the endpoint name and numeric ID suggest email data retrieval but this is unconfirmed
- —No request body schema or response schema provided
- —The endpoint is not listed among the advertised APIs on the homepage, raising questions about whether it is a production resource
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/emails/96
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/emails/96
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant accesshttps://lowpaymentfee.com
- —Docs, pricing, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs