x402 Hash API – Base64 Encode/Decode

Choose this endpoint when you need a simple, pay-per-call Base64 encode or decode operation within an x402-compatible agentic workflow and want to avoid setting up a local encoding library. Ideal for AI agents operating on Base/USDC that need occasional encoding without bundling dependencies. Not ideal if you need bulk/batch encoding, symmetric encryption, hashing (SHA/MD5), or other encoding formats beyond Base64.

• Missing or invalid 'op' field — only 'encode' or 'decode' are accepted; returns error if omitted or misspelled
• Missing 'data' field — request must include the string to process
• Invalid Base64 input when decoding — malformed or non-Base64 data will cause a decoding error
• Payment failure — x402 micropayment of $0.001 USDC on Base may fail if wallet has insufficient funds or payment header is malformed
• Rate limiting or cold-start latency on Vercel serverless deployment