x402basequality 0.35

x402-gated premium API access on Base, paid per-call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/178

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. It is part of a broader platform that offers dozens of pay-per-request API endpoints spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all settled on the Base network using USDC.

The specific endpoint `/api/v1/stripe/subscriptions/178` is listed as "Premium API Access" and accepts POST requests. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335…on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 exact scheme — no API keys, no rate limits, and no upfront commitments are required. The payment timeout is 300 seconds.

The broader platform advertises a uniform $0.02/request pricing model across all its endpoints. However, the specific functionality behind this particular "Premium API Access" endpoint is not documented in detail. The path suggests it may relate to Stripe subscription management, but no request/response schema or documentation is available beyond the x402 challenge metadata. The docs, pricing, and API pages all appear to require a wallet connection and provide no additional content to unauthenticated crawlers.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-pricingpost-methodno-api-keypay-per-use

Use cases

  • —Programmatic access to premium API functionality with per-call USDC micropayments
  • —Agent-driven API consumption without pre-registration or API key management
  • —On-chain settled API calls for Web3-native applications

Fit

Best for

  • —Developers wanting zero-signup, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Projects needing low-friction, per-request billing without subscriptions

Not for

  • —Users who need detailed API documentation before purchasing
  • —Applications requiring free-tier or trial access
  • —Non-crypto users who cannot pay in USDC on Base

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/178 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/178
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation of request parameters, response schema, or what the endpoint actually does beyond the label "Premium API Access". The docs/pricing/API pages are all gated behind wallet connection and yielded no content.

Warnings

  • —No request or response schema available — the actual functionality of this endpoint is unknown
  • —All documentation pages require wallet connection and returned no useful content to crawlers
  • —The URL path '/api/v1/stripe/subscriptions/178' suggests Stripe subscription management but this is unconfirmed
  • —No OpenAPI spec, no examples, no detailed docs found

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:08:40Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/X7zCCp
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart