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$ man hash-string

/hash-string

agentutility / wordmint / hash-string
PRICE / CALL
$0.001
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
wordmint
CATEGORY
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.

INPUTrequest schema
propertytypedescriptionreq?
textstringSource text to hash. UTF-8 encoded internally. Max 200,000 chars.required
algorithmsarrayWhich algorithms to compute. Subset of: sha1, sha256, sha384, sha512, md5. Default ['sha256'].optional
OUTPUTresponse shape
fieldtypedescription
input_charsnumberLength of the input string in characters.
input_bytesnumberUTF-8 byte length of the input — equals input_chars for ASCII, larger for multi-byte chars.
algorithmsarrayEcho of the algorithms used.
digestsobjectMap from algorithm to { hex, base64, base64url, bytes }. base64url is RFC 4648 §5 (no padding), suitable for URLs and JWTs.
EXAMPLEStwo 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
ADJACENTother endpoints in wordmint
endpointdescriptionprice
content-simhashSimHash / 64-bit content fingerprint / near-duplicate detection / dedup hashing / locality-sensitive hash.$0.001
slugifyURL slug generator / slugifier / canonical-identifier maker / safe-string converter / SEO slug builder / filename slug / cache-key normal…$0.001
text-normalizeText normalize.$0.001
token-countToken count / tokenizer estimate / GPT-4 token count / Claude token count / Gemini token count / context-window pre-flight.$0.001
type-inference-from-jsonType inference from JSON / JSON to TypeScript / JSON to Zod / JSON to JSON Schema / JSON shape inferer / quicktype-style type generator.$0.001
unicode-normalizeUnicode normalize / NFC NFD NFKC NFKD / homoglyph detection / IDN spoof / lookalike chars / invisible characters / zero-width / phishing…$0.001
cron-explainCron expression explainer / cron parser / scheduling translator.$0.002
cron-parseCron parser.$0.002
SEE ALSO
agentutility · wordmint · x402 · mcp · llms.txt · registry.json · bazaar.x402.org