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$ man hash-string

/hash-string

agentutility / wordmint / hash-string
PRICE / CALL
$0.005
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
wordmint
CATEGORY
ai
STATUS
live
NAME
hash-string computes cryptographic hash digests of any input string across five algorithms: sha1, sha256 (default), sha384, sha512, and 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

Computes cryptographic hash digests of any input string across five algorithms: sha1, sha256 (default), sha384, sha512, and md5. Returns hex, base64, and base64url encodings of each digest. 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 and content fingerprinting where collision-resistance isn't required). Use it as a string hasher, multi-algorithm digest, cache-key generator, or content fingerprinter for SHA-256 / SHA-1 / SHA-384 / SHA-512 / MD5.

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
# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the hash-string tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
tags
wordminthashsha256md5fingerprintcache-key
methods
POST
cluster
wordmint
price
$0.005 USDC per call
ADJACENTother endpoints in wordmint
endpointdescriptionprice
brand-taglineGenerates brand taglines and slogans for launch pages, X bios, email copy, and product cards.$0.005
brand-tagline-generateGenerates tagline options for a brand or startup from its name, concept, audience, and tone.$0.005
card-resolveNormalizes free-form graded card text into a canonical card object.$0.005
content-simhashFingerprints text with a 64-bit SimHash for near-duplicate detection, computed entirely locally.$0.005
cron-parseCron parser.$0.005
detect-languageLanguage detector / language identification.$0.005
dictionary-defineLooks up English word definitions with pronunciation, part of speech, and synonyms.$0.005
embedding-similarityMeasures how semantically similar two strings are: embeds both via Venice (default model: text-embedding-bge-m3) and returns the cosine s…$0.005
SEE ALSO
agentutility · wordmint · x402 · mcp · llms.txt · registry.json · bazaar.x402.org