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Bounty Engineer Hash API
x402
Bounty Engineer Hash API is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).
Hashes an input text string and returns its SHA-256, SHA-512, and Base64 encodings along with byte size
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.
Output
Returns a JSON object with ok:true, plus a result object containing: bytes (integer byte count of the input), base64 (Base64-encoded representation of the input), sha256 (hex SHA-256 digest), and sha512 (hex SHA-512 digest).
Example use cases
Verify document integrity before submission
“Hash this contract text so I can check its integrity later — give me the SHA-256 and SHA-512: 'This agreement is entered into on January 1, 2025 between Party A and Party B...'”
Generate fingerprint for deduplication
“I need a SHA-256 fingerprint of this log entry so I can deduplicate it in my pipeline: 'ERROR 2025-01-15T10:23:45Z service=auth msg=invalid_token user=abc123'”
Encode webhook payload for signing
“Give me the base64 and SHA-256 hash of this JSON webhook body so I can attach it as a signature header: '{"event":"purchase","amount":49.99,"userId":"u_8821"}'”
Technical details
Endpoint
POSThttps://bounty-engineer-x402-prod.onrender.com/v1/hash?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need cryptographic hashes (SHA-256 and SHA-512) and Base64 encoding of a text string in a single call, especially within an agent workflow that already uses x402 micropayment infrastructure. Prefer it over local hashing only if you need a verifiable third-party computation receipt or are operating in a sandboxed environment without native crypto libraries.
Side effects
- Input text exceeds 32768 character limit — returns an error
- Malformed request body or missing text field — 400 Bad Request
- Payment not included or insufficient — 402 Payment Required
- Service unavailable on Render hosting — 503 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"result": {
"bytes": 3,
"base64": "YWJj",
"sha256": "ba7816...",
"sha512": "ddaf35..."
}
}
}Tags
x402
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