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SignalHarness Trades-to-Candles Converter
x402
SignalHarness Trades-to-Candles Converter is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).
Converts raw trade tick data into OHLCV candlestick (bar) data for a specified time period
Price / call$0.015
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing generated OHLCV candlestick data, a list of any warnings encountered during aggregation, the service ID, and an evidence scope indicator. Also includes a full receipt with payment details, request and execution IDs, network info, latency metrics, and a SHA-256 hash of the result for verification.
Example use cases
Backtesting strategy on tick data
“I have a CSV of raw trade executions from a DEX — can you aggregate them into 1-hour candles so I can backtest my moving average strategy?”
Real-time chart data from trade feed
“I'm getting a stream of individual trade events from my exchange — convert the last hour of trades into 5-minute candlestick bars so I can display them on a chart.”
Reconstructing candles from historical trades
“I downloaded raw trade history for ETH/USDC from an on-chain source — transform it into daily OHLCV candles so I can analyze price action over the past month.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/trades_to_candles/invokeWhen to prefer
Choose this endpoint when you have raw trade tick data (individual buy/sell events) and need to aggregate them into OHLCV candlestick bars for charting, backtesting, or technical analysis. Prefer this over pre-built chart data APIs when you have custom or non-standard trade data sources (e.g., on-chain DEX trades, proprietary execution logs) that aren't available via standard market data providers.
Side effects
- Invalid or malformed trade_candle_request JSON string returns an error
- Input exceeds 65536 character limit causes rejection
- Empty or too-short input (below 2 characters) is rejected
- Payment failure or insufficient USDC balance prevents execution
- Malformed trade records with missing timestamps or prices may produce warnings or incomplete candles
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| trade_candle_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Output covers only supplied trades and interval boundaries."
],
"service_id": "trades_to_candles",
"evidence_scope": "caller_supplied_data",
"generated_candles": "{\"candles\":[{\"close\":\"11\",\"high\":\"11\",\"low\":\"10\",\"open\":\"10\",\"timestamp_ms\":1699999980000,\"trade_count\":2,\"volume\":\"5\"}],\"interval_ms\":60000}"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "trades_to_candles",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "15000",
"resultSha256": "0894933bcddaf53ee690e45fe57c904fb9e5ee0139f97da61643e5e586451702",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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