Pay-per-call user data export endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
The `/api/v1/users/export` endpoint on lowpaymentfee.com provides a premium user data export service accessible via the x402 payment protocol. Callers send a POST request with an `X-PAYMENT` header containing a USDC payment on the Base network. The endpoint charges a maximum of 20,000 base units of USDC (0.02 USD per request), consistent with the site's uniform $0.02 pricing across all its API offerings. No API keys, rate limits, or upfront commitments are required — each call is independently settled on-chain.
The provider hosts a broader catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02 per-request pricing and x402 payment flow on Base.
Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the provider. The specific behavior of the `/api/v1/users/export` endpoint — what input it expects and what data it returns — is not documented in any crawled material. The endpoint is confirmed live (returns a valid 402 challenge), but callers will need to experiment or contact the provider to understand the request and response formats.
Capabilities
Use cases
- —Exporting user data on demand without managing API keys or subscriptions
- —Integrating a pay-per-call data export into an automated agent workflow
- —Programmatic access to user records with on-chain USDC settlement
Fit
Best for
- —Developers wanting zero-commitment, pay-as-you-go data export
- —AI agents that can settle x402 payments autonomously on Base
- —Projects needing low-cost per-request data access without rate limits
Not for
- —Users who need detailed API documentation or guaranteed response schemas before integrating
- —High-volume bulk export where per-request pricing would be cost-inefficient
- —Users without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/users/export \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The purpose of 'users/export' is not explained anywhere in the crawled material, making this effectively a stub listing.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README all return only a 'Connect wallet' prompt
- —No OpenAPI or request/response schema provided; input format and output structure are unknown
- —The specific function of /api/v1/users/export (what user data, what format) is undocumented
- —This endpoint is not listed on the provider's homepage catalog — only similar /api/v1/data/export is listed
Citations
- —The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/users/export
- —The provider advertises $0.02 per request pricing across all endpoints with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/users/export
- —Documentation pages (/docs, /api, /pricing, /README) contain only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs