Vellium & Co

Directory › Blockchain reads › Otto AI

Otto AI

Decode and explain any EVM blockchain transaction across 11 chains (Base, Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Mantle, Monad, Plasma, BSC, Hyperliquid). Get a human-readable summary of swaps, transfers, approvals, DeFi interact

Go to this service →

Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
96 ms
Price
$0.010 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
3
Category
Blockchain reads
Address
https://x402.ottoai.services/tx-explainer

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/72689d7edc94.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].