Trust, calculated.

Why Neptuv exists

AI agents are starting to act for people and companies: they buy, book, research, trade and call other agents. The open standards that let them do this — MCP, A2A, x402 and ERC-8004 — are arriving fast. What's missing is a simple, honest answer to the first question anyone should ask before letting an agent in: can this one be trusted?

ERC-8004 records the raw evidence on-chain. Neptuv reads it, filters out the noise, and turns it into a score anyone can understand in a second and verify in a minute.

What we believe

• Explain every point. A score you can't question is just an opinion. Every Neptuv Score shows the reasons behind it, and the full method is public.
• Never touch funds. Neptuv only reads public data. It holds no one's money and never asks for keys — not for sign-in, not for payment.
• Same rules for everyone. Paying unlocks tools, never points.
• New is not bad. Brand-new agents get "Not enough data", not a low score.
• Mistakes get fixed in public. Corrections are logged on the agent's page.

Built on open standards

Neptuv indexes the official ERC-8004 registries on Ethereum and Base, with more chains ready to switch on. Agent identities are NFTs their owners control; feedback and validations are public records. Neptuv adds analysis, not gatekeeping.

Contact

Questions, partnership ideas or a score you think is wrong? Email [email protected]. Security issues: see security.txt.