# Canon Geography Fact-Check

> Canon Geography Fact-Check is a paid API for AI agents from canon.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-16).

Looks up and verifies geographic facts, data, or claims about a specified location using academic and fact-checking sources.

## Facts

- Endpoint: POST https://canon.orbonomy.xyz/api/geography?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/canon-geography-fact-check-0c8da715
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wj9dXH1W7K_vJ2as24DX8

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-geography-fact-check-0c8da715 -d '<json body>'
```

Example prompt: Can you fact-check the claim that the Nile River is entirely contained within Egypt using Canon's geography research endpoint?

## When to prefer this

Choose this endpoint when an agent needs to verify geographic claims, retrieve academically-sourced location facts, or cross-check geopolitical assertions about a specific place — especially when accuracy and sourcing matter over raw speed. Prefer over general web search when verifiability and academic provenance are required.

## Known failure modes

- Missing required 'location' field returns validation error
- Ambiguous or unrecognized location string may return empty or low-confidence results
- Payment failure (insufficient USDC on Base) returns 402 error
- Overly broad location queries may return generic or incomplete data
- Service downtime returns 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 and geographic facts or verification results about the specified location, sourced from academic and fact-checking databases.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "location"
 ],
 "properties": {
  "location": {
   "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-geography-fact-check-0c8da715/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from canon.orbonomy.xyz](https://www.zero.xyz/host/canon.orbonomy.xyz/llms.txt)