Fetch a verified contract's ABI and metadata by address, keylessly, from Sourcif
Fetch a verified contract's ABI and metadata by address, keylessly, from Sourcify. Returns the ABI plus a summarized list of function and event signatures, the contract name and compiler, and proxy detection (is_proxy + implementation address). Block explorers gate the ABI behind an API key; this does not. Chains: base, ethereum, arbitrum, optimism, polygon, bsc, avalanche. No API keys, no LLM, one x402 USDC micropayment per call.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1274 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://abi.cyberwarex.com/abi
| Category | Market data |
|---|---|
| Provider host | abi.cyberwarex.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 21 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.003 | 1274 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"chain": "ethereum"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"address": {
"description": "Contract address (0x + 40 hex chars, required).",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"chain": {
"description": "EVM chain (default base).",
"enum": [
"arbitrum",
"avalanche",
"base",
"bsc",
"ethereum",
"optimism",
"polygon"
],
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"abi": {
"description": "the full ABI (JSON array).",
"type": "array"
},
"abi_entries": {
"type": "integer"
},
"address": {
"type": "string"
},
"chain": {
"type": "string"
},
"compiler": {
"type": [
"string",
"null"
]
},
"events": {
"items": {
"type": "string"
},
"type": "array"
},
"functions": {
"items": {
"type": "string"
},
"type": "array"
},
"implementation": {
"description": "logic address if proxy.",
"type": [
"string",
"null"
]
},
"is_proxy": {
"type": "boolean"
},
"match": {
"description": "exact_match or match.",
"type": [
"string",
"null"
]
},
"name": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string"
},
"verified": {
"description": "true if Sourcify has verified source.",
"type": "boolean"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}