# EVM Contract Introspection (Polygon) — Saylor Innovations

> EVM Contract Introspection (Polygon) — Saylor Innovations is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-03).

Retrieves on-chain metadata and introspection data for a smart contract deployed on the Polygon network by contract address

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/polygon/contract/:address?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/evm-contract-introspection-polygon-saylor-innovations-c5e05ec2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WYBqEg_H8KiaKOLCxqcy3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability evm-contract-introspection-polygon-saylor-innovations-c5e05ec2
```

Example prompt: Can you pull up the on-chain contract details for the Polygon address 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 — I want to see its bytecode, type, and any metadata available?

## When to prefer this

Use this endpoint when you specifically need to inspect a smart contract deployed on the Polygon (MATIC) network. Choose this over the Base or Ethereum variants when the target contract address is on Polygon. Prefer this for DeFi auditing, token contract verification, protocol research, or any workflow that requires on-chain introspection of Polygon-native contracts without needing to run your own RPC node.

## Known failure modes

- Address not found or not a contract (EOA address returns empty bytecode)
- Invalid Ethereum address format causes 400 error
- Polygon RPC node temporarily unavailable causes timeout
- Rate limiting if too many calls in short succession
- Contract self-destructed — returns empty bytecode with no error

## How this service works

EVM Contract Introspection (polygon). Polygon contract introspection: contract vs wallet (incl. EIP-7702 delegation), bytecode size, proxy detection (EIP-1967 and legacy OpenZeppelin slots) and ERC-20 name, symbol, decimals, total supply.

## Output

Returns on-chain introspection data for the specified Polygon smart contract address, including bytecode presence, contract type indicators, deployment metadata, and any other EVM-level information available for that address on the Polygon network.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/evm-contract-introspection-polygon-saylor-innovations-c5e05ec2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)