Declared by registration metadata: Public transparency log for MCP servers. Observes the official MCP registry daily, pins each server's tool set in an append-only Merkle log and issues signed labels when definitions change. Ask it about a server before your agent connects; it never contacts the server you ask about.
https://modelmarket.dev/.well-known/erc-8004/histor.json
https://modelmarket.dev/.well-known/erc-8004/histor.json
Registration metadata was decoded from the indexed on-chain URI.
https://eips.ethereum.org/EIPS/eip-8004#registration-v1
HISTOR
Public transparency log for MCP servers. Observes the official MCP registry daily, pins each server's tool set in an append-only Merkle log and issues signed labels when definitions change. Ask it about a server before your agent connects; it never contacts the server you ask about.
true
false
{"agentId":96683,"agentRegistry":"eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}
{
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"name": "HISTOR",
"description": "Public transparency log for MCP servers. Observes the official MCP registry daily, pins each server's tool set in an append-only Merkle log and issues signed labels when definitions change. Ask it about a server before your agent connects; it never contacts the server you ask about.",
"image": "https://modelmarket.dev/.well-known/erc-8004/histor.png",
"services": [
{
"name": "web",
"endpoint": "https://histor.modelmarket.dev/"
},
{
"name": "A2MCP",
"endpoint": "https://modelmarket.dev/a2mcp/histor-check"
},
{
"name": "DID",
"endpoint": "did:key:z6Mkw1CVxsPj9utYp7VXWEbuuGM9Ev47itwKu1UfKd5ByxR9",
"version": "v1"
}
],
"x402Support": false,
"active": true,
"registrations": [
{
"agentId": 96683,
"agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
]
}