Crypto token data for XLM via x402 micropayment on Base — $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides token data for XLM (Stellar Lumens) as part of a broader suite of pay-per-call APIs accessible via the x402 protocol. Each request costs $0.02 (20,000 base units of USDC on the Base network, with 6 decimals). No API keys, rate limits, or subscriptions are required — callers simply attach an x402 payment header to each request.
The provider offers a wide catalog of endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services, all at the same $0.02 per-call price point. The specific `/api/v1/tokens/XLM` endpoint sits within the finance/crypto category and likely returns token-level data such as price, market cap, or related metadata for XLM. However, the exact response schema is not documented, and the crawled docs pages returned only a "Connect wallet" prompt with no further technical detail.
Payment settles in USDC (contract 0x8335…2913) on the Base L2 network to the provider's address. The x402 challenge specifies a 300-second payment timeout. The endpoint accepts POST requests and is discoverable. Because documentation is minimal and no response examples or OpenAPI spec are available, callers should expect to experiment with the request body and inspect responses to understand the full data model.
Capabilities
Use cases
- —Fetching current XLM token data (price, metadata) for trading bots or dashboards
- —Integrating Stellar Lumens market information into a portfolio tracker
- —Agent-driven crypto research workflows that pay per query with no subscription
Fit
Best for
- —Developers wanting keyless, pay-per-call access to XLM token data
- —AI agents that can settle x402 micropayments on Base
- —Projects needing low-friction crypto data without rate limits or sign-up
Not for
- —High-volume bulk data ingestion where per-call costs add up quickly
- —Users who need detailed historical OHLCV or order-book data (not evidenced here)
- —Anyone unable to settle USDC payments on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/XLM \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documented request/response schema, and the docs/pricing/README pages all returned only a wallet-connect prompt with no usable content. The actual data returned for XLM is unknown.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All docs, pricing, and README pages returned only 'Connect wallet' with no technical content
- —Exact request body format is undocumented; callers must experiment
- —The endpoint is labeled generically as 'Premium API Access' with no XLM-specific description from the provider
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/tokens/XLM
- —All APIs on the platform cost $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/tokens/XLM