# CRC32 Checksum for Agents

> CRC32 Checksum for Agents is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Computes a CRC32 checksum (returned as hex) for any input text, enabling quick integrity fingerprinting of configs, prompts, or cached blobs.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/crc32
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crc32-checksum-for-agents-a1800ddf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-dipxmS_0HHd8lVH4B9fd

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 crc32-checksum-for-agents-a1800ddf -d '<json body>'
```

Example prompt: Can you compute a CRC32 checksum for this config text so I can use it as a quick integrity fingerprint: 'model=gpt-4,temperature=0.7,max_tokens=512'?

## When to prefer this

Choose this endpoint when you need a fast, deterministic, non-cryptographic integrity fingerprint of a text string — for example, cache keying, change detection on configs or prompts, or deduplication of text blobs. It is simpler and cheaper than SHA-based endpoints for cases where cryptographic security is not required. Prefer a cryptographic hash endpoint if security properties (collision resistance, preimage resistance) matter.

## Known failure modes

- Text exceeds 100,000 character limit — structured validation error returned, not billed
- Missing or empty text field — validation error returned
- Network timeout on slow connections
- Malformed JSON request body — validation error returned

## How this service works

CRC32 checksum of text. Call for quick integrity fingerprints on configs, prompts, or cached blobs. Returns hex CRC32 without cryptographic security claims. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

## Output

Returns a deterministic JSON response containing the CRC32 checksum of the input text encoded as a hexadecimal string. The result is a non-cryptographic integrity fingerprint suitable for change detection and caching, not for security-sensitive applications.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 100000,
   "description": "Primary text input (max 100k chars). Processed first-party; not retained as a dataset."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "hex": "1d79a8ef",
  "crc32": 494512367,
  "schema": "delx/crc32/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crc32-checksum-for-agents-a1800ddf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)