# Services from vert.orbonomy.xyz on Zero

> vert.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/vert.orbonomy.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/vert.orbonomy.xyz/health.json

## Services

- [Canon Claim Comparator](https://www.zero.xyz/c/canon-claim-comparator-e1d96dff/llms.txt): $0.1/call via x402. Compares and fact-checks an array of claims against academic and verified sources, returning verification results for each claim
- [Canon Batch Fact-Check & Academic Research](https://www.zero.xyz/c/canon-batch-fact-check-academic-research-a391b898/llms.txt): $0.1/call via x402. Batch-verifies multiple claims and searches academic papers/journals for AI agents, returning structured results per claim
- [Canon Fact-Checking & Academic Research API](https://www.zero.xyz/c/canon-fact-checking-academic-research-api-8c1121d3/llms.txt): $0.1/call via x402. Verifies factual claims and supports academic research by checking claims against sources and searching scholarly papers and journals
- [Canon – Fact-Checking & Academic Research Search](https://www.zero.xyz/c/canon-fact-checking-academic-research-search-942313d5/llms.txt): $0.05/call via x402. Searches academic papers, journals, and fact-checking sources to verify claims and return relevant research results
- [Canon – Fact-Check & Academic Research Summary](https://www.zero.xyz/c/canon-fact-check-academic-research-summary-d10736c9/llms.txt): $0.05/call via x402. Given a topic and language, returns a researched summary with fact-checking and academic paper references for that subject.
- [Canon Fact-Check & Academic Research](https://www.zero.xyz/c/canon-fact-check-academic-research-f565d62d/llms.txt): $0.05/call via x402. Verifies claims and searches academic papers/journals for AI agents, returning fact-check results for a given query
- [Canon – Fact-Checking & Academic Research API](https://www.zero.xyz/c/canon-fact-checking-academic-research-api-a1ef6ad8/llms.txt): $0.05/call via x402. Retrieves a timeline of facts, papers, and references for a given topic to support fact-checking and academic research by AI agents
- [Canon – Statistics Endpoint](https://www.zero.xyz/c/canon-statistics-endpoint-b874d636/llms.txt): $0.05/call via x402. Retrieves statistics or data analysis on a given topic for fact-checking and academic research purposes
- [Canon – Events Fact-Checking & Academic Research](https://www.zero.xyz/c/canon-events-fact-checking-academic-research-ab78646d/llms.txt): $0.05/call via x402. Searches academic papers, journals, and factual sources to verify claims or retrieve research about a given topic on a specific date
- [Canon – Fact-Checking & Academic Research](https://www.zero.xyz/c/canon-fact-checking-academic-research-80265db9/llms.txt): $0.05/call via x402. Looks up an entity by ID to verify claims, retrieve academic papers, or explore journal information for AI agents
- [Canon Geography Lookup](https://www.zero.xyz/c/canon-geography-lookup-91135cbb/llms.txt): $0.05/call via x402. Returns geographic information or data for a given location string via the Canon fact-checking and research platform
- [Canon – Country Leaders Lookup](https://www.zero.xyz/c/canon-country-leaders-lookup-e226eeb1/llms.txt): $0.05/call via x402. Returns current political leaders or heads of state for a given country, supporting fact-checking and research tasks.

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)