DeFi exploit/hack history — 574+ incidents sorted by funds lost with technique, chain, cla

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5bCDA55247B238a573A968B234F788a2D35664Dd",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 20
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "hacks": [
            {
              "amount_usd": 624000000,
              "chains": [
                "Ethereum"
              ],
              "date": 1647993600,
              "name": "Ronin Bridge",
              "technique": "Compromised Private Keys"
            }
          ],
          "total_hacks": 574,
          "total_lost_usd": 20000000000
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "limit": {
                  "description": "Max hacks to return (default 20)",
                  "type": "integer"
                },
                "min_amount_usd": {
                  "description": "Minimum funds lost in USD",
                  "type": "number"
                }
              },
              "required": []
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "catalogue": {
    "discovery": "https://eltociear-tokenguard.hf.space/.well-known/x402",
    "note": "Same x402 rail (USDC on Base), same payTo wallet, no account or API key. GET the discovery URL for the full route list and prices.",
    "related": [
      {
        "covers": "pre-interaction EVM contract and token risk check",
        "discovery": "https://eltociear-contract-guard.hf.space/.well-known/x402",
        "service": "contract-guard"
      },
      {
        "covers": "web data (read/crawl/search), MCP and agent-skill security scanning, developer supply chain",
        "discovery": "https://eltociear-skill-audit.hf.space/.well-known/x402",
        "service": "skill-audit"
      }
    ],
    "resources": "https://eltociear-tokenguard.hf.space/x402-resources"
  }
}

curl "https://eltociear-tokenguard.hf.space/hacks"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://eltociear-tokenguard.hf.space/hacks");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://eltociear-tokenguard.hf.space/hacks")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header