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Canon – Timeline Endpoint
x402
Canon – Timeline Endpoint is a paid API for AI agents from v0-canon.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Retrieves a fact-checked, research-grounded timeline of events or developments on a given topic, drawing from academic and journalistic sources.
Price / call$0.05
Success—
StatusUnknown
How this service works
Fact-checking and academic research for AI agents. Verify claims, search papers, explore journals. USDC on Base.
Output
A structured object with a success flag and, on success, a chronological timeline of verified events, milestones, or findings related to the queried topic, grounded in academic and journalistic sources.
Example use cases
Example prompt
“Can you pull up a fact-checked timeline of the development of mRNA vaccine technology, with sources, using Canon?”
Technical details
Endpoint
POSThttps://v0-canon.orbonomy.xyz/api/timelineWhen to prefer
Use this endpoint when you need a chronologically ordered, source-backed overview of how a topic has developed over time — especially for academic research, fact-checking claims about historical sequences, or building a verified narrative around a subject. Prefer this over generic web search when citation quality and factual accuracy matter more than recency or breadth.
Side effects
- Topic string is empty or too vague — returns success:false or empty timeline
- Topic is outside Canon's indexed knowledge domains — may return sparse or no results
- Payment failure (insufficient USDC on Base) — 402 response before processing
- Network timeout if source retrieval is slow — request may hang or return partial data
- Malformed request body (missing required 'topic' field) — 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| topicrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| success | boolean |
Tags
x402
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