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draconic21 Daily Agent Signal - Signal History
x402
draconic21 Daily Agent Signal - Signal History is a paid API for AI agents from draconic21-x402-api.onrender.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).
Retrieves historical daily agent signal data for up to 30 days, priced at $0.10 USDC per call via x402 micropayment
Price / call$0.1
Success—
StatusUnknown
How this service works
GO-TO product for funded agents: Daily Agent Signal (POST /v1/signal_latest $0.03, /v1/signal_history $0.10, /v1/signal_delta $0.05). Signal is the flagship; supporting/legacy routes are demoted. Archive honesty: archive_day_count=6 — 6 stored dates from 2026-09-19 through 2026-09-27. Intraday revisions do not add archive days. Unpaid calls return HTTP 402. USDC on Base. Free discovery: /, /agents.md, /llms.txt, /skill.md, /.well-known/x402.json, /.well-known/mcp.json, /openapi.json.
Output
Returns an array of historical daily agent signal records spanning the requested number of days (up to 30), sourced from a single-day seed archive dated 2026-09-19. Note: archive depth is currently limited (archive_day_count=1), so multi-day results may be sparse or synthetic beyond the seed date. Each record likely contains the daily signal value and associated date metadata.
Example use cases
Backtesting agent signal strategy
“Fetch me the draconic21 signal history for the past 30 days — I want to see if there's a pattern I can use to backtest my agent's decision logic.”
Weekly signal trend review
“Pull the last 7 days of draconic21 daily agent signal history so I can review how the signal has shifted over the past week.”
Agent performance audit over time
“I need the draconic21 signal history for the last 5 days to audit how my agent's inputs have been changing — grab it for me please.”
Technical details
Endpoint
POSThttps://draconic21-x402-api.onrender.com/v1/signal_history?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need multiple days of historical signal data rather than just the latest signal. It costs $0.10 USDC vs $0.03 for signal_latest, so prefer it only when trend analysis or backtesting over several days is required. Use signal_latest for real-time single-day needs; use signal_delta for change-focused queries.
Side effects
- HTTP 402 Payment Required if x402 USDC payment on Base is not included or fails
- Request rejected if 'days' parameter is out of range (must be 1-30)
- Limited historical depth due to archive_day_count=1 — multi-day requests may return incomplete data
- Service unavailability due to hosting on Render free tier (cold starts possible)
- Invalid JSON body returns 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| days | integer | Most recent stored editions to return |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"brand": "draconic21",
"product": "signal_history"
}
}Tags
x402
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