x402-gated token data endpoint for PERP on Base, paid per-call in USDC.
What it does
This endpoint at lowpaymentfee.com provides premium API access to PERP token data via the x402 payment protocol. It is part of a broader suite of pay-per-request APIs covering data analytics, AI/ML inference, finance/Web3 market data, and utility services, all gated behind x402 micro-payments on the Base network.
The specific endpoint `/api/v1/tokens/PERP` accepts POST requests and returns JSON. Payment is settled in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The maximum amount required per call is 20,000 base units, which at 6 decimals equals $0.02 USD — consistent with the provider's advertised flat pricing of $0.02 per request across all endpoints. No API keys are needed; authentication and billing are handled entirely through the x402 payment header.
Documentation is extremely sparse. The provider's landing page lists available endpoints and pricing, but the /docs, /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 usage examples. The exact fields returned for a PERP token query are unknown — it likely includes price, market data, or token metadata, but this is inference based on the endpoint path and the provider's "Finance & Web3" category description. Callers should be prepared to experiment with the POST body to discover accepted parameters.
Capabilities
Use cases
- —Fetching real-time or on-demand PERP token data without managing API keys
- —Integrating token market data into autonomous agents that can pay per call via x402
- —Building trading bots or dashboards that query token information with micro-payments
Fit
Best for
- —Agents or bots that need keyless, pay-as-you-go access to token data
- —Developers experimenting with x402 payment-gated APIs on Base
- —Low-volume or sporadic token data lookups where subscriptions are overkill
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need comprehensive API documentation or SDKs before integrating
- —Bulk historical token data downloads (no batch endpoint documented)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/PERP \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Example
Request
{}Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no examples. The actual data returned is entirely unknown, making this effectively a stub listing.
Warnings
- —No API documentation available — /docs, /pricing, and /README pages all show only 'Connect wallet'
- —No OpenAPI or output schema provided; request body and response format are unknown
- —The exact data returned for /api/v1/tokens/PERP is inferred from the URL path and category, not documented
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/tokens/PERP
- —All endpoints are priced at $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/PERP