KEVAREMESH Cryptographic Hash API

x402

KEVAREMESH Cryptographic Hash API is a paid API for AI agents from kevaremesh-web.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Computes a SHA-256, SHA-384, or SHA-512 cryptographic hash of a given UTF-8 text string and returns the hex digest

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Buyer-first MCP procurement gateway that discovers, compares and routes live x402 APIs without making the buyer choose a provider.

Output

Returns a JSON object containing the hex-encoded hash digest, the byte length of the input, and the algorithm used (sha256, sha384, or sha512), along with service metadata including product name, tool name, limitations, and generation timestamp.

Example use cases

Data integrity fingerprinting

“Hash this JSON blob with SHA-256 so I can store a fingerprint and detect if it changes later: '{"user":"alice","balance":1000}'”

Content deduplication check

“Give me the SHA-512 hex digest of this article text so I can check whether I've already indexed it: 'The quick brown fox jumps over the lazy dog.'”

Secure token generation verification

“I need to verify a commitment — can you compute the SHA-384 hash of the string 'nonce:abc123:payload:transfer-1000' so I can compare it against an expected digest?”

Technical details

Endpoint

POSThttps://kevaremesh-web.vercel.app/api/x402/cryptographic-hash-cdp-cryptographic-hash?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a quick, paid, on-demand cryptographic hash of a text string (up to 256 KiB) without running local crypto libraries — particularly useful for AI agents operating in sandboxed environments without native crypto access. Prefer this over local hashing when you need a verifiable, auditable, paid computation trail via x402. Best for SHA-256/384/512 of UTF-8 text; not suitable for binary data, file hashing, or HMAC operations.

Side effects

Input text exceeds 256 KiB maximum — returns error indicating size limit
Invalid algorithm value (not sha256, sha384, or sha512) — returns validation error
Non-UTF-8 or binary input — not supported, returns error
Empty text input — may return hash of empty string or validation error
Payment failure via x402 — returns 402 Payment Required before processing

Input

Schema · Request body

Field	Type	Description
text	string
algorithm	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "hex": "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad",
      "bytes": 3,
      "algorithm": "sha256"
    },
    "product": "kevaremesh_cryptographic_hash_cdp_cryptographic_hash_v2",
    "service": "KEVAREMESH",
    "tool_name": "kevaremesh_hash",
    "limitations": [
      "UTF-8 text input",
      "Maximum input 256 KiB"
    ],
    "generated_at": "2026-09-18T00:00:00.000Z"
  }
}

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