x402basequality 0.30

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/62

What it does

This endpoint at lowpaymentfee.com provides premium API access to an email-related resource (specifically `/api/v1/emails/62`) via the x402 payment protocol. It is part of a broader platform that offers a variety of pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all priced at $0.02 per request.

The endpoint is live and returns a valid x402 challenge (HTTP 402) requiring payment of up to 20,000 base units of USDC (0x8335…2913) on the Base network, which equals $0.02 USD (USDC uses 6 decimals). Payment is made via the `exact` scheme to the specified payTo address. The endpoint accepts POST requests and returns `application/json`. No API keys or rate limits are advertised; access is gated purely by micropayment.

The specific functionality behind `/api/v1/emails/62` is not documented in the crawled material — the site's landing page lists categories like Data & Analytics, AI & ML, Finance, and Infrastructure, but does not mention an emails endpoint. The resource ID `62` suggests it may return data about or related to a specific email record, but this is speculative. Documentation pages (`/docs`, `/pricing`, `/README`) returned only a "Connect wallet" prompt with no additional content.

Capabilities

x402-paymentusdc-micropaymentbase-networkpay-per-requestemail-datajson-response

Use cases

  • —Retrieving email-related data on a per-request payment basis without API keys
  • —Agent-driven workflows that need to purchase data access programmatically via x402
  • —Integrating low-cost micropayment-gated data into automated pipelines

Fit

Best for

  • —Developers or agents wanting keyless, pay-per-call API access
  • —Use cases requiring USDC micropayments on Base L2
  • —Scenarios where no subscription or rate-limit management is desired

Not for

  • —Users needing detailed documentation or guaranteed SLAs before integrating
  • —High-volume bulk email operations where per-request pricing is inefficient
  • —Users who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/emails/62 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/emails/62
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and the specific purpose of /api/v1/emails/62 is unclear. The docs, pricing, and README pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —The specific functionality of /api/v1/emails/62 is undocumented — the emails category does not appear on the site's landing page
  • —All documentation pages (/docs, /pricing, /README) returned only 'Connect wallet' with no usable content
  • —No request body schema or response schema is available; integration requires trial and error
  • —The resource ID '62' is opaque — it is unknown whether this is a fixed resource or parameterized

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 19:24:22Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/J5m4Rg
x402-gated email data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart