SHA-256 hash API: hash text with SHA-1, SHA-256, SHA-384 or SHA-512

$0.001 per call with a key ($0.002 paid per call from a wallet) · failed calls are never charged · no account needed: a card key or USDC

SHA256 hash of UTF-8 text (SHA-256 by default; SHA-1, SHA-384 or SHA-512 on request), returned as a digest in hex and base64. Use for checksums, cache keys and deduplication.

When to use it

Run it free (3 free calls) Buy credits by card (from $1) Example result (JSON)

$0.001 per call with prepaid credits: $1 by card pays for 1,000 calls, with no account and no subscription.

Try it with your own inputs

The text to hash

Uses one of your 3 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
text (required)stringThe text to hash
algorithmstringsha256 (default), sha1, sha384 or sha512

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://glyphcall.com/hash?text=hello"

Or one of your 3 free calls, no key:

curl "https://glyphcall.com/hash?text=hello&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "algorithm": "sha256",
  "hex": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
  "base64": "LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ="
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is hash, and the first 25 successful calls are free:

https://glyphcall.com/mcp

Questions

Which algorithm is the default?

SHA-256; pass algorithm for sha1, sha384 or sha512. Input is UTF-8 text.

How do I pay?

Each successful call costs $0.002; failed calls are not charged. The first 3 calls are free (25 through an MCP client). Then pay with card credits (from $1; the key goes in an Authorization header or, for clients that can only fetch a URL, as api_key= in the URL) or per call in USDC over x402 or MPP. No account is needed.

Related tools