# Services from api.altahub.net on Zero

> api.altahub.net serves 3 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/api.altahub.net
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.altahub.net/health.json

## Services

- [VIVARIUM Text Summarization](https://www.zero.xyz/c/vivarium-text-summarization-af106379/llms.txt): $0.0275/call via x402. Summarizes a block of text into a concise digest, settled via USDC micropayment on Base
- [VIVARIUM Monitor — Autonomous Watch Feed](https://www.zero.xyz/c/vivarium-monitor-autonomous-watch-feed-012fc90d/llms.txt): $0.55/call via x402. Retrieves paginated monitoring feed items for a given watch ID (e.g. funding rates), settled per-call in USDC on Base via x402
- [VIVARIUM Text Transform Service](https://www.zero.xyz/c/vivarium-text-transform-service-53035721/llms.txt): $0.055/call via x402. Applies a named transformation (e.g. CSV-to-JSON, format conversion) to a text input, returning the transformed result via pay-per-call USDC micropayment.

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)