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Base Sentinel Hash API
x402
Base Sentinel Hash API is a paid API for AI agents from base-sentinel-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Computes a cryptographic hash (SHA-256, SHA-512, SHA-1, or MD5) of a given text string, returning results as both hex and base64 encodings.
Price / call$0.001
Success—
StatusUnknown
How this service works
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
Output
Returns a JSON object containing both a hex-encoded and a base64-encoded cryptographic hash of the input text, computed using the specified algorithm (defaults to SHA-256 if not specified).
Example use cases
Content deduplication fingerprinting
“Hash this product description with SHA-256 so I can use it as a deterministic ID for deduplication: 'Premium stainless steel water bottle, 32oz, BPA-free, keeps drinks cold 24 hours.'”
Integrity check before upload
“Generate an MD5 hash of this config file content so I can attach it as an integrity checksum before sending it to the client: 'db_host=localhost
db_port=5432
db_name=myapp'”
Password-less token generation
“Create a SHA-512 hash of the string 'user:42:session:2024-06-01' — I need the hex output to use as a deterministic session token.”
Technical details
Endpoint
POSThttps://base-sentinel-production.up.railway.app/api/hashWhen to prefer
Choose this endpoint when you need a quick, pure-computation hash of a text string with no infrastructure setup, want dual encoding (hex + base64) in one call, and need support for multiple algorithms (SHA-256, SHA-512, SHA-1, MD5). Ideal for serverless agents that need deterministic IDs, content fingerprints, or lightweight integrity checks without importing a local crypto library.
Side effects
- Text exceeds 100KB limit — request rejected
- Invalid algorithm name supplied — may return an error or default to sha256
- Empty text input — may return hash of empty string or an error
- Malformed JSON body — HTTP 400 bad request
- Service unavailable (Railway deployment down) — HTTP 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| algo | string | sha256 | sha512 | sha1 | md5 |
| text | string | Text to hash (max 100KB) |
Tags
x402
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