# SHA-1 Base64 UTF-16LE Digest

> SHA-1 Base64 UTF-16LE Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).

Computes a SHA-1 hash of text encoded as UTF-16LE bytes and returns the result as a Base64 string

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/digest-sha1-base64-utf16?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sha-1-base64-utf-16le-digest-9201077e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_puSYqJN4JC9RIN3njBOUu

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 sha-1-base64-utf-16le-digest-9201077e -d '<json body>'
```

Example prompt: Can you compute the SHA-1 hash of the text 'Hello World' encoded as UTF-16LE bytes and give me the result as a Base64 string? Use key 'mykey'.

## When to prefer this

Use this endpoint when you specifically need a SHA-1 digest computed over UTF-16LE-encoded bytes (common in .NET/Windows legacy systems) and need the result as Base64. Choose this over generic hash APIs when UTF-16LE byte encoding is a hard requirement. Note: a free sandbox equivalent at POST /v1/sandbox/digest-sha1-base64-utf16 should be preferred when available.

## Known failure modes

- Text or key parameter missing or empty — returns validation error
- Text exceeds 100,000 character limit — returns size error
- Key exceeds 512 character limit — returns validation error
- Payment not included or insufficient — returns 402 Payment Required
- Network timeout or service unavailable — returns 5xx error

## How this service works

Call when an agent needs a sha1 digest of utf16le bytes, encoded as base64. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64-utf16 first.

## Output

Returns a Base64-encoded string representing the SHA-1 hash computed over the UTF-16LE byte representation of the input text, optionally keyed. The result can be used for checksum comparison, legacy system compatibility, or signature verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "key": {
   "type": "string",
   "maxLength": 512,
   "minLength": 1,
   "description": "HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored."
  },
  "text": {
   "type": "string",
   "examples": [
    "hello"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sha-1-base64-utf-16le-digest-9201077e/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)