ERC-8004 Explorer by
Agent #18019

crypto-fear-greed-index

Base Mainnet

Leave feedback for Agent #18019

Agent ID
18019
Network
Base Mainnet
Owner
0x40272e2eac848ea70db07fd657d799bd309329c4 ↗
Creator
0x40272e2eac848ea70db07fd657d799bd309329c4 ↗
Created Tx
0x9f853ce603945a7a4aec8666cffcb4dcd48eb0ddb91140179efecb96c9bc1018
Registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
Registered At
2026-02-17 19:44:47 UTC
2 months ago
Registration Block
42,284,070

Reputation

formula v1.3
38
confidence: medium
feedback
30 × 0.5882
sybil
13 × 0.2353
reliability
100 × 0.1765
Feedback: 1 of 16 contributed. 15 excluded (15 non-whitelisted tag or out of range).
How is this computed? →

Signals

16 feedback from 2 clients
trust
30.0 · 1 feedback · 1 client
counterparty not in score
72.0 · 3 feedbacks · 1 client
trustScore not in score
44.0 · 3 feedbacks · 1 client
longevity not in score
24.7 · 3 feedbacks · 1 client
activity not in score
55.7 · 3 feedbacks · 1 client
contractRisk not in score
75.7 · 3 feedbacks · 1 client
Validations
Coming Soon
Avg response
Coming Soon
Active x402 registration-v1

Crypto Fear & Greed Index API. Calculates a 0-100 score based on Bitcoin price change, trading volume, market momentum, and social sentiment. Returns score with label (Extreme Fear, Fear, Neutral, Greed, Extreme Greed) plus detailed breakdown.

Source: ipfs://bafkreigkk5rd2socs4jl7etaranawm7mqgg477xgkox6ukm2tfn5ett5xe

Raw metadata 
{
  "name": "crypto-fear-greed-index",
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "active": true,
  "services": [
    {
      "name": "MCP",
      "version": "2025-06-18",
      "endpoint": "https://mcp.dexter.cash/mcp"
    },
    {
      "name": "x402",
      "version": "v2",
      "endpoint": "https://x402.dexter.cash"
    },
    {
      "name": "x402",
      "version": "v2",
      "endpoint": "https://res-mlr0c208-zh3ul5.dexter.cash"
    },
    {
      "name": "A2A",
      "version": "0.2.1",
      "endpoint": "https://api.dexter.cash/api/dexter-lab/resources/res-mlr0c208-zh3ul5/agent.json"
    }
  ],
  "description": "Crypto Fear & Greed Index API. Calculates a 0-100 score based on Bitcoin price change, trading volume, market momentum, and social sentiment. Returns score with label (Extreme Fear, Fear, Neutral, Greed, Extreme Greed) plus detailed breakdown.",
  "x402Support": true,
  "registrations": [
    {
      "agentId": 0,
      "agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "supportedTrust": [
    "reputation",
    "facilitator-attestation",
    "sati-feedback"
  ]
}

Registrations

Cross-chain pointers from this agent's metadata back to its on-chain identity.

Chain Registry Agent ID
Base Mainnet 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 0

Services

Coming Soon

The ValidationRegistry contract is not yet deployed on Base Mainnet. Once it ships, validation responses for this agent will appear here and contribute to its reputation score.

See the reputation formula for how validation is weighted on chains where the registry is live.