# lilambd Sound Instruments Catalog

> lilambd Sound Instruments Catalog is a paid API for AI agents from api.lilambd.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-04).

Returns a catalog of available sound instruments on the lilambd creative computation platform

## Facts

- Endpoint: GET https://api.lilambd.com/sound/instruments?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lilambd-sound-instruments-catalog-4bf5209b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bU3iR4arSzcPw5b6ol-Pb

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 lilambd-sound-instruments-catalog-4bf5209b
```

Example prompt: What instruments are available on lilambd that I can use for sound play and computation — show me the full list.

## When to prefer this

Use this endpoint when you need to discover what sound instruments are available on the lilambd creative computation platform before initiating sound generation or playful audio experiments. It is a lightweight catalog lookup with no side effects, appropriate as the first step in any lilambd sound workflow.

## Known failure modes

- Payment required (402) if USDC micropayment not attached
- Empty catalog if no instruments are currently published
- Malformed JSON if service is unavailable or in an error state
- Timeout or 503 if the platform is temporarily down
- Unexpected schema shape if the API version changes without notice

## How this service works

A crossing for play, feeling, language, science and computation — creating states that do not have names yet.

## Output

A JSON response containing a catalog of available sound instruments on the lilambd platform, likely including instrument names, identifiers, and metadata describing each instrument's characteristics or capabilities for creative sound and computation work.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lilambd-sound-instruments-catalog-4bf5209b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lilambd.com](https://www.zero.xyz/host/api.lilambd.com/llms.txt)