x402basequality 0.25

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/emails/85

What it does

This endpoint at `/api/v1/emails/85` 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/85` 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 `/api/v1/emails/85` endpoint is not listed among the publicly advertised API categories on the landing page (which covers analytics, AI, finance, and utilities). There is no documentation describing what this specific email endpoint returns — the crawled docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content.

Without documentation or schema details, the exact functionality of this endpoint is unknown. It likely returns some form of email-related data (possibly a specific email record identified by ID 85), but this is speculative. The endpoint is confirmed live via a valid 402 challenge. Agents should be aware that the lack of input/output schema documentation means integration requires experimentation or direct contact with the provider.

Capabilities

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

Use cases

  • —Retrieving email-related data on a per-request payment basis
  • —Agent-driven data access without API key provisioning
  • —Programmatic access to email records settled via crypto micropayments

Fit

Best for

  • —Agents needing keyless, pay-per-use API access
  • —Developers who want to avoid subscription commitments for occasional email data lookups
  • —x402-compatible clients on the Base network

Not for

  • —Users needing well-documented, schema-specified email APIs
  • —High-volume email processing where per-request pricing is inefficient
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/emails/85 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/emails/85
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (valid 402 challenge) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no input/output schema, and the specific /emails/85 resource is not listed on the provider's landing page. The crawled docs/API/pricing pages are empty beyond a wallet connect prompt. Functionality is essentially unknown.

Warnings

  • —The /api/v1/emails/85 endpoint is not listed among the provider's publicly advertised APIs — its purpose is unclear.
  • —No documentation, input schema, or output schema is available for this endpoint.
  • —All crawled subpages (docs, api, pricing, README) returned only a 'Connect wallet' prompt with no content.
  • —The exact data returned by this endpoint is unknown; integration requires experimentation.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 19:31:28Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-25

Agent access

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