AI-generated short market commentary for any cryptocurrency symbol via x402 micropayment.
What it does
CryptoBuddy's `/analysis-simple` endpoint returns a concise AI-generated market commentary for a given cryptocurrency. You supply a coin symbol (e.g. BTC, ETH, SOL) as a query parameter, pay $0.10 in USDC on Base via the x402 protocol, and receive a JSON object containing the symbol, a timestamp, and a short market narrative.
The endpoint is live and responds with a standard x402 payment challenge (HTTP 402) when called without payment. It accepts POST requests with a required `symbol` query parameter. The response schema includes three fields: `symbol` (the requested coin), `timestamp` (when the analysis was generated), and `market` (the AI-written commentary text). The parent service, CryptoBuddy, describes itself as providing "AI-powered trading signals, market insight, and predictive analysis," though this particular endpoint is scoped to short commentary only.
Payment settles in USDC (contract `0x8335…2913`) on Base network using the x402 "exact" scheme. The maximum amount required is 100,000 base units, which equals $0.10 USD (USDC uses 6 decimals). There is no OpenAPI spec, no dedicated documentation page, and no additional endpoints were discoverable during crawling.
Capabilities
Use cases
- —Get a quick AI-generated market sentiment blurb for a specific cryptocurrency
- —Feed short market commentary into a trading dashboard or portfolio app
- —Automate periodic market summaries for a crypto newsletter or bot
Fit
Best for
- —Agents or apps needing brief, on-demand crypto market narratives
- —Developers integrating lightweight AI market commentary at low cost
- —Prototyping crypto-aware chatbots that need real-time market color
Not for
- —Detailed technical analysis with charts, indicators, or trade signals
- —Historical market data retrieval or backtesting
- —Non-crypto financial analysis
Quick start
curl -X POST "https://cryptobuddy-96zq.onrender.com/analysis-simple?symbol=BTC" \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Example
Request
{
"url": "https://cryptobuddy-96zq.onrender.com/analysis-simple?symbol=ETH",
"method": "POST",
"headers": {
"X-PAYMENT": "<x402_payment_token>",
"Content-Type": "application/json"
}
}Response
{
"market": "Ethereum is trading near $3,450 with moderate bullish momentum. On-chain activity has picked up over the past 24 hours, and the ETH/BTC ratio is holding steady. Short-term sentiment leans cautiously optimistic.",
"symbol": "ETH",
"timestamp": "2025-01-15T12:34:56Z"
}Endpoint
Quality
The endpoint is live with a well-formed x402 challenge and includes an outputSchema describing both input and output. However, there is no OpenAPI spec, no documentation pages, and no usage examples from the provider. The response example is inferred from the schema, not observed. Pricing is clear ($0.10 USDC on Base).
Warnings
- —No documentation or OpenAPI spec available — /docs, /api, /pricing, /README all return 404.
- —Response example is inferred from the outputSchema, not from an actual paid call.
- —The 'market' field content quality and length are unknown — described only as 'short market commentary'.
- —Service is hosted on Render free/hobby tier (onrender.com), which may have cold-start latency or availability limitations.
Citations
- —The service describes itself as providing 'AI-powered trading signals, market insight, and predictive analysis.'https://cryptobuddy-96zq.onrender.com
- —The endpoint returns a 402 challenge with maxAmountRequired of 100000 USDC base units on Base network.https://cryptobuddy-96zq.onrender.com/analysis-simple
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://cryptobuddy-96zq.onrender.com/analysis-simple
- —The outputSchema specifies a required 'symbol' query parameter and returns symbol, timestamp, and market fields.https://cryptobuddy-96zq.onrender.com/analysis-simple