# AgentShelf Lines Lowercase

> AgentShelf Lines Lowercase is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-11).

Transforms lines of text to lowercase, processing the input string server-side for a flat $0.009 USDC fee.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/lines-lowercase?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-lines-lowercase-67a55976
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QM7M4oh3VlfS1ej6xqqyJ

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-lowercase-67a55976 -d '<json body>'
```

Example prompt: Can you lowercase all the text in this block for me: 'Hello World, THIS IS A TEST. Multiple Lines Here.'

## When to prefer this

Choose this endpoint when you need a reliable, paid, production-grade lowercase transformation without any local computation — especially in agentic pipelines where consistent server-side processing and x402 micropayment billing are required. Prefer the free unpaid sandbox endpoint at POST /v1/sandbox/lines-lowercase for testing or cost-sensitive workflows.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Payment failure or insufficient USDC balance prevents processing
- Network or server errors return 5xx responses

## How this service works

Call when an agent needs lines of text transformed with lowercase. No network. Send JSON {"text":"b\na\n"}. Exact $0.009 USDC on Base. Try unpaid POST /v1/sandbox/lines-lowercase first.

## Output

The endpoint returns the input text with all characters converted to lowercase, preserving line structure and whitespace. The response is the transformed string ready for downstream use.

## 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-lowercase-67a55976/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)