# Services from secondopinionx402.com on Zero

> secondopinionx402.com serves 5 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/secondopinionx402.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/secondopinionx402.com/health.json

## Services

- [Second Opinion — Live Web Verification](https://www.zero.xyz/c/second-opinion-live-web-verification-48b2817e/llms.txt): $0.2/call via x402. Sends a claim to an independent adversarial agent that actively researches the web to attempt to refute it, then returns a structured verdict with citations.
- [Second Opinion Async Claim Verification](https://www.zero.xyz/c/second-opinion-async-claim-verification-3e4df07f/llms.txt): $0.2/call via x402. Asynchronously verifies a claim using adversarial web research, returning a job ID immediately so results can be polled later; supports Solana payments.
- [Second Opinion Panel Verdict](https://www.zero.xyz/c/second-opinion-panel-verdict-f811a937/llms.txt): $0.75/call via x402. Runs a claim through three independent skeptic agents (evidence, logic, currency lenses) and returns a majority verdict with per-seat breakdown.
- [Second Opinion Quick Verify](https://www.zero.xyz/c/second-opinion-quick-verify-ba56a6e4/llms.txt): $0.02/call via x402. Performs a fast, reasoning-only logical consistency check on a claim without web research, returning a verdict or 'inconclusive' if live data is needed.
- [Second Opinion Quick Async (Reasoning-Only Claim Check)](https://www.zero.xyz/c/second-opinion-quick-async-reasoning-only-claim-check-a667a88e/llms.txt): $0.02/call via x402. Submits a claim for an asynchronous reasoning-only logical verification check, returning a job ID to be polled for results — optimized for Solana x402 payments.

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)