# KEVAREMESH Base64 Transform

> KEVAREMESH Base64 Transform is a paid API for AI agents from kevaremesh-web.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).

Encodes or decodes UTF-8 text using Base64 via a micropayment-gated x402 API endpoint.

## Facts

- Endpoint: POST https://kevaremesh-web.vercel.app/api/x402/base64-transform?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kevaremesh-base64-transform-70cbf542
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rYCrSFV8XyV2_kem68aFE

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 kevaremesh-base64-transform-70cbf542 -d '<json body>'
```

Example prompt: Can you base64-encode the text 'Hello, World!' for me using the KEVAREMESH transform endpoint?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use base64 encode or decode operation without provisioning your own infrastructure, especially within an x402 micropayment-enabled agent workflow. It is best suited for UTF-8 text payloads under 256KB where simplicity and low cost per call ($0.001 USDC) matter more than high-volume batching.

## Known failure modes

- Non-UTF-8 binary input will be rejected (UTF-8 text only limitation)
- Text exceeding 262,144 characters will fail input validation
- Invalid operation enum value (anything other than 'encode' or 'decode') will cause a schema error
- Payment failure via x402 protocol will prevent the call from executing
- Malformed base64 input string when decoding will produce an error

## How this service works

Buyer-first MCP procurement gateway that discovers, compares and routes live x402 APIs without making the buyer choose a provider.

## Output

Returns a JSON object containing the transformed output string, the operation performed (encode or decode), the input byte count, a product identifier ('kevaremesh_base64_transform_v2'), the service name ('KEVAREMESH'), and a timestamp of when the result was generated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 262144
  },
  "operation": {
   "enum": [
    "encode",
    "decode"
   ],
   "type": "string",
   "default": "encode"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "output": "aGVsbG8=",
   "operation": "encode",
   "input_bytes": 5
  },
  "product": "kevaremesh_base64_transform_v2",
  "service": "KEVAREMESH",
  "tool_name": "kevaremesh_base64",
  "limitations": [
   "UTF-8 text only"
  ],
  "generated_at": "2026-09-18T00:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kevaremesh-base64-transform-70cbf542/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kevaremesh-web.vercel.app](https://www.zero.xyz/host/kevaremesh-web.vercel.app/llms.txt)