$ man hash-string
/hash-string
PRICE / CALL
$0.001
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
wordmintCATEGORY
ai
STATUS
● live
NAME
hash-string — string hasher / multi-algorithm digest / cache-key generator / content fingerprinter / sha-256 / sha-1 / sha-384 / sha-512 / md5
SYNOPSIS
POST https://x402.agentutility.ai/hash-string
Content-Type: application/json
X-PAYMENT: <signed-transferWithAuthorization>
{ ... }↳ first call →
402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.DESCRIPTION
String hasher / multi-algorithm digest / cache-key generator / content fingerprinter / SHA-256 / SHA-1 / SHA-384 / SHA-512 / MD5. Computes one or more cryptographic hash digests of any input string. Returns hex, base64, and base64url encodings of each digest. Five algorithms supported: sha1, sha256 (default), sha384, sha512, md5. SubtleCrypto powers the SHA family; MD5 is computed by a small in-process implementation (the web crypto spec doesn't expose MD5, but it's still useful for cache keys + content fingerprinting where collision-resistance isn't required). Pure compute, deterministic, $0.001.
INPUT — request schema
| property | type | description | req? |
|---|---|---|---|
| text | string | Source text to hash. UTF-8 encoded internally. Max 200,000 chars. | required |
| algorithms | array | Which algorithms to compute. Subset of: sha1, sha256, sha384, sha512, md5. Default ['sha256']. | optional |
OUTPUT — response shape
| field | type | description |
|---|---|---|
| input_chars | number | Length of the input string in characters. |
| input_bytes | number | UTF-8 byte length of the input — equals input_chars for ASCII, larger for multi-byte chars. |
| algorithms | array | Echo of the algorithms used. |
| digests | object | Map from algorithm to { hex, base64, base64url, bytes }. base64url is RFC 4648 §5 (no padding), suitable for URLs and JWTs. |
EXAMPLES — two ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/hash-string \
-H 'Content-Type: application/json' \
-d '{ }'first response =
402 Payment Required with payment requirements; sign + retry with X-PAYMENT.EXAMPLE 2 · mcp
# MCP packages on npm under # @agentutility/mcp-* (one per cluster) # # Catalog + install: # https://mcp.agentutility.ai # # Or call hash-string directly over HTTP — see above.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
- tags
- wordminthashsha256md5fingerprintcache-key
- methods
- POST
- cluster
- wordmint
- price
- $0.001 USDC per call
ADJACENT — other endpoints in wordmint
| endpoint | description | price |
|---|---|---|
| content-simhash | SimHash / 64-bit content fingerprint / near-duplicate detection / dedup hashing / locality-sensitive hash. | $0.001 |
| slugify | URL slug generator / slugifier / canonical-identifier maker / safe-string converter / SEO slug builder / filename slug / cache-key normal… | $0.001 |
| text-normalize | Text normalize. | $0.001 |
| token-count | Token count / tokenizer estimate / GPT-4 token count / Claude token count / Gemini token count / context-window pre-flight. | $0.001 |
| type-inference-from-json | Type inference from JSON / JSON to TypeScript / JSON to Zod / JSON to JSON Schema / JSON shape inferer / quicktype-style type generator. | $0.001 |
| unicode-normalize | Unicode normalize / NFC NFD NFKC NFKD / homoglyph detection / IDN spoof / lookalike chars / invisible characters / zero-width / phishing… | $0.001 |
| cron-explain | Cron expression explainer / cron parser / scheduling translator. | $0.002 |
| cron-parse | Cron parser. | $0.002 |
SEE ALSO