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Oblique Markets Proxy Implementation Inspector
x402
Oblique Markets Proxy Implementation Inspector is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Detects whether a smart contract is an upgradeable proxy and returns its standard, implementation address, admin, beacon, storage slots, and block info across major EVM chains.
Price / call$0.003
Success—
StatusUnknown
How this service works
Use when an agent asks if a contract is an upgradeable proxy and where its code is. Returns the standard (EIP-1967, beacon, UUPS, minimal, legacy, Safe, none), implementation, admin, beacon, slots and block read on Base, Ethereum, Optimism, Arbitrum or Polygon; 4 extra slots decoded. $0.003.
Output
Returns a JSON object with: is_proxy (boolean), standard (e.g. EIP-1967, UUPS, beacon, minimal, legacy, Safe, none), proxy_name, implementation address, admin address, beacon address, chain, chain_id, block_tag, read_at, up to 4 decoded extra storage slots, RPC call metadata, freshness/cache info, and payment receipt.
Example use cases
Audit proxy upgrade risk before investment
“Check if 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum is an upgradeable proxy — I need to know the proxy standard, who the admin is, and what the current implementation address is before I decide to invest.”
Verify contract code source on Base
“I'm looking at this contract on Base — 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — can you tell me if it's a proxy and where the real logic contract lives?”
Historical proxy state at specific block
“What was the implementation address of the UUPS proxy at 0x4200000000000000000000000000000000000006 on Optimism at block 115000000? I need to know what code was running at that point.”
Technical details
Endpoint
GEThttps://api.oblique.markets/api/v1/paid/proxy-implementationWhen to prefer
Choose this endpoint when you need to determine if a specific EVM smart contract is an upgradeable proxy and identify its implementation, admin, or beacon across Base, Ethereum, Optimism, Arbitrum, or Polygon. It supports all major proxy standards (EIP-1967, UUPS, beacon, minimal proxy, legacy, Safe) in a single call with optional extra slot decoding. Prefer this over generic blockchain RPC calls when you want structured, labeled proxy metadata without writing custom storage slot decoding logic.
Side effects
- Invalid or malformed contract address returns validation error
- Unsupported chain name or ID returns error
- Contract is an EOA (not a contract) returns is_proxy false with standard none
- RPC node timeout or unavailability causes temporary failure
- Block number not yet mined or out of range returns error
- More than 4 extra slots requested exceeds limit
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"rpc": {
"calls": 9,
"hosts": [
"mainnet.base.org"
],
"endpoint_class": "public"
},
"admin": null,
"chain": "base",
"beacon": null,
"source": "public-rpc+explorer",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"read_at": "2026-09-12T01:30:00.000Z",
"receipt": {
"sku": "proxy-implementation",
"payer": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"payment_network": "eip155:8453"
},
"chain_id": 8453,
"is_proxy": true,
"standard": "oz-legacy",
"block_tag": "latest",
"freshness": {
"cache": "miss",
"served_at": "2026-09-12T01:30:00.120Z",
"ttl_seconds": 30,
"cache_age_seconds": 0
},
"proxy_name": "FiatTokenProxy",
"slots_read": [
{
"raw": "0x0000000000000000000000000000000000000000000000000000000000000000",
"slot": "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
"label": "eip1967.implementation"
}
],
"extra_slots": [
{
"raw": "0x0000000000000000000000000000000000000000000000000000000000000000",
"slot": "0x0000000000000000000000000000000000000000000000000000000000000000",
"as_bool": false,
"as_address": null,
"as_uint256": "0"
}
],
"is_contract": true,
"block_number": 40203311,
"implementation": "0x2Ce6311ddAE708829bc0784C967b7d77D19FD779",
"implementation_name": "FiatTokenV2_2",
"implementation_has_code": true
}
}Tags
x402
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