x402basequality 0.25

Pay-per-call email data endpoint on Base via x402, settled in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/emails/94

What it does

This endpoint at `/api/v1/emails/94` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI/ML, finance, infrastructure, and more. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The specific resource at `/emails/94` is labeled "Premium API Access" and accepts POST requests. The price is 20,000 base units of USDC (6 decimals), which equals $0.02 per request.

The broader platform advertises a uniform $0.02/request pricing model with no API keys, no rate limits, no minimums, and instant access. However, the `/emails/94` endpoint is not listed among the publicly advertised API categories on the landing page (which covers analytics, AI, finance, and utility endpoints). The exact functionality of this specific email endpoint is unclear — no documentation, request schema, or response schema is available. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content.

Because there is no OpenAPI spec, no request/response schema, and no documentation describing what this endpoint actually does or what input it expects, agents should treat this as a minimally documented endpoint. The x402 challenge is live and well-formed, confirming the endpoint is operational and accepts payment, but the actual behavior behind the paywall is unknown.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestemail-datapost-endpoint

Use cases

  • —Retrieving email-related data behind a micropayment wall
  • —Agent-driven email data access without API keys
  • —Programmatic pay-per-use email queries settled in USDC on Base

Fit

Best for

  • —Agents needing keyless, pay-per-call email data access
  • —Developers experimenting with x402 payment protocol integrations
  • —Use cases requiring no-commitment, no-rate-limit API access

Not for

  • —Production workloads requiring documented request/response schemas
  • —Users who need free or subscription-based email APIs with clear SLAs
  • —Anyone needing detailed documentation before calling an endpoint

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/emails/94 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/emails/94
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint is operational. However, there is no documentation, no request/response schema, no OpenAPI spec, and the /emails/94 path is not even listed on the provider's own landing page. The actual functionality behind the paywall is completely unknown.

Warnings

  • —No request or response schema available — input format is unknown
  • —The /api/v1/emails/94 endpoint is not listed among the provider's publicly advertised APIs
  • —All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content
  • —Exact functionality of this email endpoint is undocumented and cannot be verified without paying

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 19:31:02Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/6QyvUH
Pay-per-call email data endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart