# Polygon Contract Creation Transaction Analyzer

> Polygon Contract Creation Transaction Analyzer is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).

Analyzes Polygon contract creation transactions from caller-supplied data to extract creator address, nonce, init code details, expected address, and network context

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/polygon_contract_creation_analyze/invoke
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polygon-contract-creation-transaction-analyzer-fad22142
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dQzEq8I9vOUOnoPItFiam

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 polygon-contract-creation-transaction-analyzer-fad22142 -d '<json body>'
```

Example prompt: Analyze this Polygon contract creation transaction for me and tell me the creator address, expected deployed contract address, init code hash, and any warnings — here's the raw transaction JSON: {"to":null,"from":"0xABC...","nonce":"5","data":"0x6080...","gas":"500000","value":"0"}.

## When to prefer this

Choose this endpoint when you need to statically analyze a Polygon contract creation transaction from caller-supplied data — particularly to extract the creator address, compute the expected deployed address, inspect init code metadata, or understand the Polygon PoS network context. It operates entirely on supplied data without requiring blockchain node access or live chain state, making it ideal for pre-deployment validation, audit workflows, and forensic analysis. Prefer alternatives if you need live on-chain verification, runtime behavior analysis, or support for non-Polygon EVM chains.

## Known failure modes

- Malformed or missing request_json returns a parsing error
- Insufficient transaction fields prevent expected address derivation, surfaced as a warning rather than a hard failure
- Non-Polygon chain IDs in the transaction data may trigger warnings or incorrect network context
- Empty init code produces zero byte size and null hash
- Missing creator address or nonce prevents expected contract address calculation

## How this service works

Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.

## Output

Returns a JSON analysis containing: creator address, expected contract address (if derivable), gas limit, init code byte size and hash, nonce, value, network context (chain IDs, bridge model, protocol family), and an array of warnings about limitations of the analysis (e.g. no runtime behavior proven). Also includes evidence scope (caller_supplied_data), analyzed network (polygon), and a receipt with payment and execution metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "request_json": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Does not prove deployment or runtime behavior."
   ],
   "service_id": "polygon_contract_creation_analyze",
   "analysis_json": "{\"creator\":\"0x0000000000000000000000000000000000000001\",\"expected_address\":null,\"gas_limit\":\"21000\",\"init_code_bytes\":68,\"init_code_hash\":\"0x53893ee34a7f44a17cb623aa779750e71b27d6a76064cb515b6c5c42a4a973f7\",\"network_context\":{\"accepted_chain_ids\":[\"137\",\"80002\"],\"bridge_model\":\"root-child state sync plus checkpoint evidence\",\"completion_policy\":\"never inferred without supplied evidence\",\"protocol_family\":\"Polygon PoS\"},\"nonce\":\"1\",\"value\":\"0\",\"warnings\":[\"expected address requires a supplied creator and nonce derivation\"]}",
   "evidence_scope": "caller_supplied_data",
   "analyzed_network": "polygon"
  },
  "status": "succeeded",
  "receipt": {
   "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "usage": [],
   "status": "succeeded",
   "network": "eip155:8453",
   "artifacts": [],
   "endedAtMs": 0,
   "latencyMs": 0,
   "paymentId": "example-payment",
   "receiptId": "example-receipt",
   "requestId": "example-request",
   "serviceId": "polygon_contract_creation_analyze",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "15000",
   "resultSha256": "1ca5b93c72948e22303ad3fcda5ede8fb90cbec14fdec0872c881b4624b9b79d",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polygon-contract-creation-transaction-analyzer-fad22142/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)