# Canon – Fact-Checking & Academic Research

> Canon – Fact-Checking & Academic Research is a paid API for AI agents from tascanon.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Verifies claims and searches academic papers/journals for AI agents by resolving an entity ID against a research knowledge base

## Facts

- Endpoint: POST https://tascanon.orbonomy.xyz/api/entity
- Price: $0.05/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-02356679
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LezDVQCYejHiXXEFtAkR4

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-02356679 -d '<json body>'
```

Example prompt: Can you fact-check the claim with ID 'claim-9482' using Canon — I need to know if it's verified by academic sources?

## When to prefer this

Choose Canon when an AI agent needs to verify factual claims or retrieve academic/scholarly evidence for a specific known entity or claim ID. It is best suited for structured fact-checking workflows where the entity has already been identified and needs authoritative validation, rather than free-text keyword search across open databases.

## Known failure modes

- Missing required 'id' field returns a 400 validation error
- Unknown or unrecognized entity ID returns success:false or empty result
- Payment failure (insufficient USDC on Base) blocks the request with a 402 response
- Network timeout if the upstream academic database is slow to respond
- Malformed request body causes a parsing 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 entity was resolved, along with fact-check or research data associated with the provided ID such as verification status, supporting academic sources, or journal references.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "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-02356679/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tascanon.orbonomy.xyz](https://www.zero.xyz/host/tascanon.orbonomy.xyz/llms.txt)