# Axon Smart Contract Explainer

> Axon Smart Contract Explainer is a paid API for AI agents from axonx.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Returns a plain-language explanation of a smart contract at the given blockchain address, including whether it is verified

## Facts

- Endpoint: GET https://axonx.vercel.app/api/explain/%7Baddress%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/axon-smart-contract-explainer-127e3775
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ESZVxiS-odogmwOjo9BQw

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 axon-smart-contract-explainer-127e3775
```

Example prompt: Can you explain what the smart contract at address 0x6B175474E89094C44Da98b954EedeAC495271d0F does and whether it's been verified?

## When to prefer this

Use this endpoint when you need a fast, AI-generated plain-English explanation of a specific smart contract by its on-chain address, especially when you want to quickly understand what a contract does without manually reading Solidity source code. Ideal for due diligence, DeFi research, or onboarding non-technical users to smart contract concepts.

## Known failure modes

- Invalid or malformed contract address returns an error
- Unverified contract with no source code may yield limited or no explanation
- Address not found on supported chain returns 404 or empty result
- x402 micropayment not provided or insufficient causes 402 Payment Required response
- Network timeout or Vercel cold-start latency causes delayed or failed response

## How this service works

Axon provides AI-powered crypto intelligence endpoints covering token research, market analysis, contract auditing, sentiment tracking, news summarization, portfolio advice, deep research, text translation, language detection, SEO content generation, and contract explanation. All analytical endpoints require x402 micropayment on Base.

## Output

A JSON object containing the queried contract address, a boolean verified field indicating whether the contract source is verified on-chain, and a plain-English explanation string describing what the contract does and how it works.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "address": "0x...",
  "verified": true,
  "explanation": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/axon-smart-contract-explainer-127e3775/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from axonx.vercel.app](https://www.zero.xyz/host/axonx.vercel.app/llms.txt)