Pay-per-call SUI token data via x402 on Base — $0.02/request, no API keys needed.
What it does
This endpoint at lowpaymentfee.com provides token data for SUI via a simple POST request, settled through the x402 payment protocol on the Base network using USDC. Each call costs $0.02 (20,000 base units of USDC with 6 decimals). No API keys, accounts, or rate limits are required — payment is handled inline via the X-PAYMENT header.
The provider hosts a broader suite of 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 follow the same $0.02/request pricing model on the Base network.
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 specific behavior of the /api/v1/tokens/SUI endpoint (what fields it returns, what parameters it accepts) must be discovered by making a paid request. The endpoint is confirmed live via a valid 402 challenge.
Capabilities
Use cases
- —Fetching current SUI token data (price, metadata) without needing an API key
- —Integrating SUI token information into trading bots or dashboards with micropayment settlement
- —Agent-driven crypto data retrieval where per-call billing is preferred over subscriptions
Fit
Best for
- —Developers wanting zero-signup access to SUI token data
- —AI agents that can settle x402 payments autonomously on Base
- —Projects needing occasional token lookups without committing to a subscription
Not for
- —High-frequency trading requiring sub-cent per-call costs or bulk pricing
- —Users who need comprehensive documentation or guaranteed SLA before integrating
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/SUI \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is zero documentation on request parameters, response schema, or example payloads. The docs, pricing, and README pages are all empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no technical content
- —No OpenAPI spec or request/response schema provided
- —Exact response format for /api/v1/tokens/SUI is unknown — must be discovered via a paid call
- —Provider legitimacy and data source quality cannot be verified from available materials
Citations
- —Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/tokens/SUI
- —All APIs priced at $0.02/request with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/tokens/SUI