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x402stock Smart Stock Screener
x402
x402stock Smart Stock Screener is a paid API for AI agents from x402stock.xyz, paid per call via x402, $0.2/call, status healthy (last checked 2026-09-14, last successful call 2026-09-02).
Screens the entire US stock market using a natural language query, returning tickers that match technical signals like oversold conditions, momentum, and volume with AI-generated rationales.
Price / call$0.2
Success—
StatusHealthy
How this service works
Describe a screen in plain English via `?q=` (e.g. 'oversold large caps up today on high volume'). An LLM parses it into a filter, screens the entire US market, optionally confirms oversold/overbought with RSI, and returns a ranked shortlist with a one-line rationale per name. No need to know the filter schema or run the enrichment loop yourself. From x402stock
Output
Returns a JSON object with the interpreted natural language query, the filters extracted from it (price range, volume threshold, RSI signal, sort order, limit), and an array of matching tickers each with price, percent change, volume, RSI value, and an AI-generated rationale explaining why it matched. Also includes a plain-English summary of results, a disclaimer, and section-level status indicators.
Example use cases
Example prompt
“Can you screen the US stock market for large cap stocks that are oversold right now — RSI under 30 — but are up today on high volume, price above $20, sort by biggest gainers, and give me the top 10 with a reason why each one stands out?”
Technical details
Endpoint
GEThttps://x402stock.xyz/api/v1/screener/smartWhen to prefer
Use this endpoint when you need to discover stock tickers matching a technical or thematic screen expressed in plain English — especially when you don't know which specific tickers to look at and want AI to interpret your criteria and return a ranked, reasoned shortlist. Prefer this over point-in-time price lookups when the goal is discovery rather than data retrieval for a known symbol.
Side effects
- Missing required 'q' query parameter returns 400 error
- Ambiguous or very broad natural language query may return empty results or low-relevance tickers
- Payment not made or insufficient USDC results in 402 Payment Required
- Market data may be delayed, causing mismatch between stated conditions and real-time prices
- Very restrictive filter combinations (e.g. very low price + very high volume + RSI < 20) may yield zero results
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "technology stocks with high volume"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"note": null,
"as_of": "2026-06-12T05:16:28.417Z",
"model": "gpt-4o-mini",
"query": "technology stocks with high volume",
"filter": {
"sort": "volume",
"limit": 15,
"order": "desc",
"signal": "none",
"max_price": null,
"min_price": null,
"min_volume": 1000000,
"max_change_percent": null,
"min_change_percent": null
},
"source": "x402stock",
"results": [
{
"rsi": null,
"price": 4.835,
"ticker": "SOXS",
"volume": 909766309,
"rationale": "With a volume of 909,766,309, SOXS demonstrates exceptionally high trading activity despite a price of $4.835 and a significant change of -24.35%.",
"change_percent": -24.353120243531208
},
{
"rsi": null,
"price": 0.0152,
"ticker": "ADTX",
"volume": 656185806,
"rationale": "ADTX has a volume of 656,185,806, reflecting strong market engagement, although its price is only $0.0152 and it has decreased by 17.84%.",
"change_percent": -17.83783783783783
},
{
"rsi": null,
"price": 4.23,
"ticker": "TZA",
"volume": 334530929,
"rationale": "TZA shows a volume of 334,530,929, indicating robust trading, with a current price of $4.23 and a change of -8.76%.",
"change_percent": -8.760683760683765
},
{
"rsi": null,
"price": 8.652,
"ticker": "BITO",
"volume": 326181096,
"rationale": "BITO's volume of 326,181,096 suggests considerable interest, with a price of $8.652 and a positive change of 2.49%.",
"change_percent": 2.4911032028469853
},
{
"rsi": null,
"price": 0.28,
"ticker": "TOVX",
"volume": 290080246,
"rationale": "TOVX has a volume of 290,080,246, indicating high trading activity, with a price of $0.28 and a notable increase of 26.08%.",
"change_percent": 26.07802874743327
},
{
"rsi": null,
"price": 31.88,
"ticker": "SMCI",
"volume": 251859586,
"rationale": "SMCI's volume of 251,859,586 reflects strong market participation, priced at $31.88 with a positive change of 8.92%.",
"change_percent": 8.916979842842498
},
{
"rsi": null,
"price": 0.51,
"ticker": "HKIT",
"volume": 222333791,
"rationale": "With a volume of 222,333,791, HKIT shows significant trading interest, priced at $0.51 and up by 16.97%.",
"change_percent": 16.972477064220186
},
{
"rsi": null,
"price": 118.512,
"ticker": "INTC",
"volume": 188430249,
"rationale": "INTC has a volume of 188,430,249, indicating solid market activity, with a price of $118.51 and a change of 10.72%.",
"change_percent": 10.717488789237663
},
{
"rsi": null,
"price": 2.1152,
"ticker": "PPCB",
"volume": 174623374,
"rationale": "PPCB's volume of 174,623,374 highlights strong trading, with a price of $2.1152 and a remarkable increase of 56.68%.",
"change_percent": 56.68148148148149
},
{
"rsi": null,
"price": 0.6664,
"ticker": "RUBI",
"volume": 165326686,
"rationale": "RUBI shows a volume of 165,326,686, indicating high interest, priced at $0.6664 with a change of 41.79%.",
"change_percent": 41.787234042553195
},
{
"rsi": null,
"price": 205.962,
"ticker": "NVDA",
"volume": 158648800,
"rationale": "With a volume of 158,648,800, NVDA reflects significant trading activity, priced at $205.96 and a change of 2.77%.",
"change_percent": 2.765193094501548
},
{
"rsi": null,
"price": 14.58,
"ticker": "AAL",
"volume": 155165170,
"rationale": "AAL has a volume of 155,165,170, indicating strong market interest, with a price of $14.58 and a change of 8.64%.",
"change_percent": 8.64381520119225
},
{
"rsi": null,
"price": 1.07,
"ticker": "GELS",
"volume": 153367417,
"rationale": "GELS shows a volume of 153,367,417, reflecting high trading activity, priced at $1.07 with a substantial increase of 107.97%.",
"change_percent": 107.9689018464529
},
{
"rsi": null,
"price": 0.575,
"ticker": "CCHH",
"volume": 135814128,
"rationale": "CCHH has a volume of 135,814,128, indicating notable market engagement, priced at $0.575 with a change of 66.18%.",
"change_percent": 66.1849710982659
},
{
"rsi": null,
"price": 8.82,
"ticker": "SPDN",
"volume": 125367454,
"rationale": "SPDN's volume of 125,367,454 suggests considerable trading interest, with a price of $8.82 and a slight decrease of -1.67%.",
"change_percent": -1.6666666666666705
}
],
"summary": "The shortlisted technology stocks exhibit high trading volumes, indicating significant market interest.",
"sections": {
"filter": "ok",
"market": "ok",
"rationale": "ok"
},
"disclaimer": "AI-assisted screen over delayed whole-market data, not investment advice.",
"result_count": 15,
"interpretation": "Screening for technology stocks with high trading volume."
}Schema · Response
{
"type": "json",
"example": {
"note": null,
"as_of": "2026-06-08T12:00:00.000Z",
"model": "gpt-4o-mini",
"query": "oversold large caps up today on high volume",
"filter": {
"sort": "change_percent",
"limit": 10,
"order": "desc",
"signal": "oversold",
"max_price": null,
"min_price": 20,
"min_volume": 5000000,
"max_change_percent": null,
"min_change_percent": 0
},
"source": "x402stock",
"results": [
{
"rsi": 28.4,
"price": 71.2,
"ticker": "PYPL",
"volume": 14000000,
"rationale": "Up 3.1% today on heavy volume while RSI at 28 flags it oversold.",
"change_percent": 3.1
},
{
"rsi": 26.9,
"price": 22.6,
"ticker": "INTC",
"volume": 38000000,
"rationale": "Bouncing 1.8% with very high volume from a deeply oversold RSI of 27.",
"change_percent": 1.8
}
],
"summary": "Two liquid large caps rebounding today from oversold conditions.",
"sections": {
"filter": "ok",
"market": "ok",
"rationale": "ok"
},
"disclaimer": "AI-assisted screen over delayed whole-market data, not investment advice.",
"result_count": 2,
"interpretation": "Large, liquid stocks trading up today that are technically oversold (RSI < 30)."
}
}Tags
x402
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