x402-gated Stripe subscription endpoint on Base, paid per-call in USDC.
What it does
This endpoint at lowpaymentfee.com provides a "Premium API Access" resource at the path `/api/v1/stripe/subscriptions/120`. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all gated via the x402 payment protocol on the Base network, settling in USDC.
The specific endpoint probed here returns an x402 challenge requesting up to 0.02 USDC (20,000 base units of USDC with 6 decimals) per call, consistent with the platform's advertised flat $0.02/request pricing. Payment is made via the `exact` scheme to a designated wallet address. The endpoint accepts HTTP POST requests and returns `application/json`. No API keys or rate limits are advertised; access is granted purely through on-chain payment.
The platform's documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all resolve but appear to require a wallet connection to render content, so detailed request/response schemas, parameter documentation, and example payloads are not available from the crawl. The endpoint's purpose — managing or retrieving Stripe subscription data — can be inferred from the URL path but is not explicitly documented in the crawled material. Without further documentation it is unclear what request body this POST endpoint expects or what the response payload looks like.
Capabilities
Use cases
- —Programmatically accessing or managing Stripe subscription data via a single micropayment per call
- —Agent-driven subscription lookups without pre-provisioned API keys
- —Integrating pay-as-you-go subscription management into Web3 workflows
Fit
Best for
- —Developers wanting keyless, pay-per-call access to subscription data
- —AI agents that can settle x402 payments on Base in USDC
- —Projects needing low-friction API access without signup or rate limits
Not for
- —Users who need detailed API documentation before integrating (docs are sparse)
- —High-volume callers who would prefer a flat monthly subscription rather than per-call payment
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/120 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response examples, and all documentation pages require wallet connection to render. The purpose of the endpoint is only inferable from the URL path.
Warnings
- —Documentation pages (/docs, /pricing, /api, /README) all require wallet connection and returned no useful content during crawl.
- —No request body schema or response schema is documented — unclear what POST body is expected.
- —The specific function of /api/v1/stripe/subscriptions/120 (create, read, update?) is not documented.
- —The broader platform lists many endpoints but none have detailed docs available without wallet auth.
Citations
- —The endpoint returns an x402 challenge requesting up to 20,000 base units of USDC (0.02 USD) on Base network.https://lowpaymentfee.com/api/v1/stripe/subscriptions/120
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access.https://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network.https://lowpaymentfee.com/api/v1/stripe/subscriptions/120