# AgentShelf Lines Uppercase Transformer

> AgentShelf Lines Uppercase Transformer is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Transforms each line of the provided text to uppercase, returning the modified text for a flat $0.01 USDC fee.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/lines-uppercase?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-lines-uppercase-transformer-c8954fb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vegzk5gDx4YImP4Ziqvzm

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 agentshelf-lines-uppercase-transformer-c8954fb4 -d '<json body>'
```

Example prompt: Can you convert every line of this text to uppercase: 'hello world
this is a test
goodbye'?

## When to prefer this

Use this endpoint when you need a deterministic, no-LLM, exact uppercase transformation of multiline text at a fixed $0.01 USDC cost. Prefer the free sandbox endpoint POST /v1/sandbox/lines-uppercase for testing without payment. Choose this over LLM-based casing when you need guaranteed all-caps output without inference variance or token costs.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Insufficient USDC balance causes a payment failure (402 response)
- Network timeout if the service is temporarily unavailable

## How this service works

Call when an agent needs lines of text transformed with uppercase. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/lines-uppercase first.

## Output

Returns the input text with every line converted to uppercase characters. The response preserves line structure and only changes character casing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "examples": [
    "b\na\n"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-lines-uppercase-transformer-c8954fb4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)