Database snapshot endpoint (2025-12) payable per-request via x402 on Base with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a database snapshot for December 2025 via the x402 payment protocol. The endpoint accepts POST requests and returns JSON data. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The broader lowpaymentfee.com platform advertises a suite of APIs spanning data & analytics (metrics, reports, data export, insights), AI & ML (sentiment analysis, text 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/request pricing model and x402 payment flow on Base. However, this specific listing covers only the `/api/v1/database/snapshots/2025-12` endpoint.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data content and request format remain unclear.
Capabilities
Use cases
- —Retrieving a December 2025 database snapshot on demand
- —Programmatic access to archived data without subscription commitments
- —Agent-driven data retrieval with automatic micropayment settlement
Fit
Best for
- —Agents needing one-off access to a specific monthly data snapshot
- —Developers who want keyless, pay-per-call data access on Base
- —Use cases where subscription-free, low-cost data retrieval is preferred
Not for
- —Users who need detailed API documentation or schema guarantees before purchasing
- —High-volume bulk data retrieval where per-request costs add up
- —Anyone requiring non-USDC or non-Base payment settlement
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2025-12 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming pricing and payment details. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual data content of the snapshot is completely undocumented, making this effectively a stub listing.
Warnings
- —No API documentation available — docs, pricing, and README pages only show 'Connect wallet'
- —No OpenAPI or JSON schema for request or response bodies
- —Actual content/structure of the database snapshot is unknown
- —No examples of successful responses available
- —The endpoint description 'Premium API Access' is generic and uninformative
Citations
- —Endpoint returns a valid x402 402 challenge with USDC on Base network at 20,000 base units ($0.02)https://lowpaymentfee.com/api/v1/database/snapshots/2025-12
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Basehttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/database/snapshots/2025-12
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs