Pay-per-call DOT token data via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides token data for DOT (Polkadot) through a pay-per-call x402 protocol. It is part of a broader platform offering dozens of API endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services — all priced uniformly at $0.02 per request with no API keys, no rate limits, and no commitments required.
The specific endpoint `/api/v1/tokens/DOT` accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 "exact" scheme. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment is directed to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.
Documentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the DOT token endpoint actually returns. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know the exact request format or response structure without experimentation.
Capabilities
Use cases
- —Fetching current DOT (Polkadot) token information programmatically
- —Integrating on-demand crypto token data into agent workflows without API key management
- —Building trading bots or dashboards that need per-call token lookups settled in USDC
Fit
Best for
- —Agents or services that need occasional DOT token data without subscription overhead
- —Developers wanting frictionless pay-per-call access without signup or API keys
- —x402-compatible clients on the Base network
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need comprehensive documentation or OpenAPI specs before integration
- —Anyone without USDC on Base network for payment
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/DOT \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages return only a wallet-connect prompt. The actual data returned by the DOT token endpoint is entirely unknown from available materials.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no technical content
- —No OpenAPI or schema describing request parameters or response fields for the /api/v1/tokens/DOT endpoint
- —Response structure and available fields are completely unknown; integration requires trial-and-error
- —The platform lists many endpoint categories but specifics for token endpoints are not documented
Citations
- —Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/tokens/DOT
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/tokens/DOT
- —Docs, pricing, API, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs