# Services from v0-canon.orbonomy.xyz on Zero

> v0-canon.orbonomy.xyz serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/v0-canon.orbonomy.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/v0-canon.orbonomy.xyz/health.json

## Services

- [Canon Summary](https://www.zero.xyz/c/canon-summary-2b82325a/llms.txt): $0.05/call via x402. Generates a fact-checked academic summary on a given topic in a specified language, drawing on research papers and journals.
- [Canon Academic Search & Fact-Checking](https://www.zero.xyz/c/canon-academic-search-fact-checking-8b39df9a/llms.txt): $0.05/call via x402. Searches academic papers and journals to verify claims and retrieve research results for AI agents, paid per-query in USDC on Base.
- [Canon Batch Fact-Checking & Academic Research](https://www.zero.xyz/c/canon-batch-fact-checking-academic-research-8b2a6167/llms.txt): $0.1/call via x402. Batch-verifies multiple claims and searches academic papers/journals for AI agents, returning structured fact-check results.
- [Canon Fact-Check API](https://www.zero.xyz/c/canon-fact-check-api-8aaa0549/llms.txt): $0.05/call via x402. Verifies factual claims and searches academic papers and journals for AI agents using a natural language query
- [Canon Compare](https://www.zero.xyz/c/canon-compare-85d8e3eb/llms.txt): $0.1/call via x402. Compares and fact-checks multiple claims simultaneously using academic research and verified sources
- [Canon – Timeline Endpoint](https://www.zero.xyz/c/canon-timeline-endpoint-356a5d4b/llms.txt): $0.05/call via x402. Retrieves a fact-checked, research-grounded timeline of events or developments on a given topic, drawing from academic and journalistic sources.
- [Canon Claim Verifier](https://www.zero.xyz/c/canon-claim-verifier-ae7834dc/llms.txt): $0.1/call via x402. Verifies a factual claim using fact-checking and academic research sources, returning a verification result
- [Canon – Events Fact-Check & Academic Research](https://www.zero.xyz/c/canon-events-fact-check-academic-research-9b304be6/llms.txt): $0.05/call via x402. Retrieve fact-checked information and academic research about events on a given date and topic, for AI agents to verify claims and explore scholarly sources.
- [Canon Entity Fact-Check & Research Lookup](https://www.zero.xyz/c/canon-entity-fact-check-research-lookup-9368c1e1/llms.txt): $0.05/call via x402. Retrieves fact-checking data or academic research for a given entity ID, enabling AI agents to verify claims and explore scholarly sources
- [Canon – Country Leaders Lookup](https://www.zero.xyz/c/canon-country-leaders-lookup-b86179b2/llms.txt): $0.05/call via x402. Returns current political leaders for a given country, supporting fact-checking and research use cases.
- [Canon Statistics](https://www.zero.xyz/c/canon-statistics-b47d22dc/llms.txt): $0.05/call via x402. Retrieves statistical data and analytical summaries on a given topic for fact-checking and academic research purposes
- [Canon Geography Lookup](https://www.zero.xyz/c/canon-geography-lookup-507e155d/llms.txt): $0.05/call via x402. Looks up factual geographic information about a specified location for AI agents

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)