x402basequality 0.25

x402-gated email data endpoint on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/emails/88

What it does

This endpoint at lowpaymentfee.com provides x402-protocol access to an email-related resource at `/api/v1/emails/88`. It is part of a broader platform offering dozens of pay-per-call API endpoints across categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, settled in USDC on the Base network.

The specific endpoint `/api/v1/emails/88` is described only as "Premium API Access" with no further documentation about what data it returns or what input it expects. The x402 challenge confirms it accepts POST requests and charges up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) on Base. Payment is made via the x402 exact scheme with no API keys or rate limits required — callers simply attach an X-PAYMENT header with a valid payment proof.

The platform's documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all returned only a "Connect wallet" prompt with no substantive content. As a result, the exact functionality of the `/api/v1/emails/88` endpoint is unclear. It may return email-related data (e.g., a specific email record or template), but this is speculative. The endpoint is confirmed live via a proper 402 challenge response.

Capabilities

x402-paymentusdc-basepay-per-requestemail-datapost-endpoint

Use cases

  • —Retrieving email-related data or records via a single paid API call
  • —Agent-driven workflows that need on-demand email information without API key management
  • —Programmatic access to email resources with instant crypto micropayments

Fit

Best for

  • —Developers wanting keyless, pay-per-use email data access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users who need detailed API documentation before integrating
  • —High-volume email operations where per-request pricing is inefficient
  • —Anyone without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/emails/88 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/emails/88
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is confirmed live via a valid 402 challenge, but there is essentially no documentation about what /api/v1/emails/88 actually does or returns. No OpenAPI schema, no request/response examples, and all doc pages are empty. The endpoint's purpose must be guessed from the URL path alone.

Warnings

  • —No documentation available — all doc pages return only 'Connect wallet' with no content
  • —The specific purpose of /api/v1/emails/88 is unknown; 'Premium API Access' is a generic label applied to many endpoints
  • —No request or response schema is provided
  • —The /api/v1/emails/88 path does not appear in the site's own listed endpoints, raising questions about its status

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 19:24:37Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/6gjvKq
x402-gated email data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart