# EVM Checksum Address Converter

> EVM Checksum Address Converter is a paid API for AI agents from chargers-borders-cedar-fig.trycloudflare.com, paid per call via x402, price unknown, status down (last checked 2026-09-15).

Converts an Ethereum address to its EIP-55 checksummed format for validation and safe use in EVM-compatible applications

## Facts

- Endpoint: POST https://chargers-borders-cedar-fig.trycloudflare.com/tools/evm-checksum
- Price: price unknown
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/evm-checksum-address-converter-ac75a952
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xw0CszF39syqxiQPxuSLm

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-checksum-address-converter-ac75a952 -d '<json body>'
```

Example prompt: Can you convert this Ethereum address to its proper EIP-55 checksummed format: 0xd3cda913deb6f279967967567d34c167d15e5b5f?

## When to prefer this

Use this endpoint when you need to convert or validate Ethereum/EVM addresses to EIP-55 checksum format as a lightweight, focused utility — especially before passing addresses to smart contracts, wallets, or any system that enforces checksum validation

## Known failure modes

- Invalid or malformed Ethereum address input returns an error
- Non-hex characters in address cause validation failure
- Address missing 0x prefix may be rejected
- Address of wrong length (not 40 hex chars after 0x) is rejected

## How this service works

opentools utility endpoint

## Output

Returns the EIP-55 mixed-case checksummed representation of the provided Ethereum address, which encodes a checksum in the capitalization pattern of the hex characters to allow detection of mistyped addresses

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/evm-checksum-address-converter-ac75a952/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chargers-borders-cedar-fig.trycloudflare.com](https://www.zero.xyz/host/chargers-borders-cedar-fig.trycloudflare.com/llms.txt)