AI
Second Opinion AI
Second Opinion
Independent second-opinion review API that compares AI model outputs for quality verification. Pay per call in USDC on Base via x402 with no account or API key.
Back to service marketHTTP x402 online test
Send an unpaid request using the provider's template and inspect the 402 payment requirements returned by the service.
POST
https://secondopinionapi.com/critique
Service tags
review
analysis
Service information
- Provider
- Second Opinion
- Category
- AI
- Uptime (30 days)
- 80%
- Avg response time (30 days)
- 1.2 s
- Information updated
- Aug 15, 2026
Payment details
Option 1
exact
eip155:8453
- Atomic amount
- 20000
- Payment timeout
- 300 seconds
- Asset
- USD Coin · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
- Recipient
- 0x0b9B8a32AD1E821af6E470A4De97ba7188A130a4