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CRC16 Hex Checksum Calculator
x402
CRC16 Hex Checksum Calculator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-29).
Computes the CRC16 checksum of a given text string and returns the result as a hexadecimal value.
Price / call$0.001
Success—
StatusUnknown
How this service works
Call when an agent needs a crc16 checksum of text as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc16-hex first.
Output
Returns a hexadecimal string representing the CRC16 checksum of the submitted text, computed server-side without any LLM or network dependencies. The response is deterministic: identical inputs always produce the same hex output.
Example use cases
Protocol message integrity check
“I need to verify a CAN bus message frame — can you compute the CRC16 checksum of this payload: '01 03 00 00 00 0A' and give me the hex value?”
Configuration file fingerprinting
“Give me the CRC16 hex checksum for this config snippet so I can detect any accidental changes later: 'server=localhost;port=5432;db=myapp'”
Data pipeline deduplication
“Can you calculate the CRC16 hex value for the string 'user_id=4821&event=purchase&ts=1715000000' so I can use it as a lightweight dedup key in my pipeline?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/checksum-crc16-hex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic CRC16 hex checksum without implementing the algorithm locally. It is especially useful in agent workflows where you cannot or do not want to execute arbitrary code, and when you need a lightweight integrity fingerprint rather than a cryptographic hash. If cost is a concern, try the free sandbox POST /v1/sandbox/checksum-crc16-hex first.
Side effects
- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Missing or invalid API key returns 401/402 unauthorized
- Malformed JSON body returns 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| key | string | HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored. |
| text | string | 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. |
Tags
x402
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