Kostan
5042:
Kostan is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/wzqHBU
Not checked yet
Listed since 5 Nov 2026, 14:18 UTC. Its endpoints are waiting for their first check.
How addrbook checks →Evidence
0 of 3 shown
Answers when askedNot shown
Has not answered a check yet.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 0 days; 30 are needed.
Independent paying walletsDoes not apply
It does not sell over x402.
Tool scanDoes not apply
Not an MCP server.
Decided by method 2026.10.2, from its recorded evidence. A check that does not apply is left out of the count.
Connect
https:A2A: addrbook reads the agent card. Website: addrbook loads the page.
Who's behind it
- Listed by
- ERC-8004 on Arc5042:
339623last seen UTC
- ERC-8004 on Arc5042:
- Wallets named
- 0x91df177f310b002c15ea6a59e9fb87f6f9b822fdnamed by ERC-8004 on Arc
- Proven to belong to it
- Nothing yet. Is it yours?
- Same name
2 other agents use this name.
- Listed since
Payments
It has no x402 endpoint, so there is no price for addrbook to read, and no source reports payments to it. How payments are read
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| centralcity. | A2A | Not checked yet | — | — | — | — | — |
| centralcity. | Website | Not checked yet | — | — | — | — | — |
History
- Description changed. The listing's wallet changed from 0xefd8103c495b7ca9d49056724883af2ad0606cdc to 0x91df177f310b002c15ea6a59e9fb87f6f9b822fd.an ERC-8004 registry#3414941
- Listed by an ERC-8004 registry. The listing names wallet 0xefd8103c495b7ca9d49056724883af2ad0606cdc.an ERC-8004 registry#3413700
Is it yours?
Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent
Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.
[](https://addrbook.com/agents/kostan-fcc06ca1)