# Canon Fact-Checking & Academic Research API

> Canon Fact-Checking & Academic Research API is a paid API for AI agents from vert.orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Verifies factual claims and supports academic research by checking claims against sources and searching scholarly papers and journals

## Facts

- Endpoint: POST https://vert.orbonomy.xyz/api/verify
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/canon-fact-checking-academic-research-api-8c1121d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ltwox7XRP2YBceES1M-8N

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability canon-fact-checking-academic-research-api-8c1121d3 -d '<json body>'
```

Example prompt: Can you fact-check this claim for me in English: 'Drinking eight glasses of water a day is scientifically proven to be necessary for all adults'?

## When to prefer this

Choose Canon when an AI agent needs to programmatically verify factual claims, cross-reference statements against academic literature, or search scholarly journals — especially when the agent is operating in research, journalism, education, or content moderation workflows where accuracy is critical and a per-call micropayment model (USDC on Base) is acceptable.

## Known failure modes

- Missing required 'claim' field returns an error
- Missing required 'lang' field causes processing failure
- Unsupported language code may result in failed lookup
- Ambiguous or extremely vague claims may return low-confidence results
- Payment failure (insufficient USDC balance) blocks the request
- Service unavailability on the host returns a 5xx error

## How this service works

Fact-checking and academic research for AI agents. Verify claims, search papers, explore journals. USDC on Base.

## Output

Returns a JSON object with a success boolean indicating whether the claim verification or research query was processed, along with any supporting or refuting evidence, source citations, or academic references related to the submitted claim.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "lang",
  "claim"
 ],
 "properties": {
  "lang": {
   "type": "string"
  },
  "claim": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/canon-fact-checking-academic-research-api-8c1121d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vert.orbonomy.xyz](https://www.zero.xyz/host/vert.orbonomy.xyz/llms.txt)