Hash Encoding Direct Credits

Reliability

Latest check failed 23 h ago: initialize returned HTTP 404

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "hash-encoding-direct-credits": {
      "type": "http",
      "url": "https://hash-encoding-001d.qqqa16521-dce.workers.dev/mcp"
    }
  }
}

8 tools

• get_payment_info

  Return the complete purchase and redemption instructions for this service's prepaid API credits. Use this before paying or when an agent needs the Base Mainnet network, native USDC contract, receiver address, exact package amount, credit quantity, buyer-gas requirement, or…

• get_credit_balance

  Check the remaining prepaid API credits for the bearer token configured on this MCP connection. Use this after redeeming a payment when you need to decide whether a protected tool can be called. The bearer token is read from the Authorization header, not from tool arguments…

• hash_sha256

  Create an unkeyed SHA-256 fingerprint of UTF-8 text. Use this for checksums, deduplication, content fingerprints, or integrity comparisons when no shared secret is involved; use hmac_sha256 instead when keyed authentication is required. Returns the 32-byte digest as 64 lowercase…

• hash_sha512

  Create an unkeyed SHA-512 fingerprint of UTF-8 text. Use this when a 512-bit digest is specifically required for checksums, fingerprints, or compatibility; use hash_sha256 for the more common 256-bit digest and hmac_sha256 when keyed authentication is required. Returns 128…

• hmac_sha256

  Authenticate a UTF-8 message with a UTF-8 secret key using HMAC-SHA256. Use this when you need keyed integrity/authentication with a shared secret; use hash_sha256 instead for an unkeyed checksum or fingerprint. Returns the 32-byte HMAC as 64 lowercase hexadecimal characters…

• base64_encode

  Encode UTF-8 text as standard Base64. Use this for transport/storage encoding of text bytes; Base64 is reversible encoding, not encryption and not a cryptographic hash. Returns the encoded Base64 string. Costs 1 credit.

• base64_decode

  Decode a standard Base64 string into UTF-8 text. Use this only when the decoded bytes are expected to be valid UTF-8; this tool is not for arbitrary binary output. Base64 is reversible encoding, not encryption. Costs 1 credit.

• jwt_decode

  Decode a compact JWT's header and payload for inspection without verifying its signature. Use this for debugging or reading claims only; never treat the returned claims as authenticated or trusted. The response always reports signatureVerified=false, even when a signature…

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