Swift Bot Labs Toolbox – Encode (Multi-Format String Encoding)

x402

Swift Bot Labs Toolbox – Encode (Multi-Format String Encoding) is a paid API for AI agents from x402-toolbox.swiftbotlab.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).

Converts a string between any two of eight encoding formats (utf8, hex, base64, base64url, base32, base58, url, html) deterministically, paying per call in USDC via x402.

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

62 small, deterministic utility APIs (DNS and e-mail checks, web extraction, EVM decoding, x402 checks, IP math, JSON/CSV, hashing, conversions). No account or API key: pay per call in USDC with x402.

Output

Returns a JSON object with ok=true, the tool name ('encode'), and a result object containing the source format, target format, byte count of the input, and the encoded output string.

Example use cases

Base64-encode a webhook payload

“Take this JSON string '{"event":"purchase","id":42}' and encode it as base64 so I can embed it in an email header.”

URL-encode a query parameter

“I need to safely embed the string 'search?q=coffee & cake' as a URL query parameter — can you url-encode it for me?”

Hex-to-base64 for Ethereum calldata

“I have this hex-encoded EVM calldata '0x4f6e65' and I need it converted to base64 so I can include it in a REST API body.”

Technical details

Endpoint

POSThttps://x402-toolbox.swiftbotlab.workers.dev/v1/encode?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a lightweight, deterministic, pay-per-call encoding conversion across multiple standard formats (utf8, hex, base64, base64url, base32, base58, url, html) without setting up an account or API key. It is ideal for AI agents that need occasional encoding transformations as part of a pipeline and want to pay only for what they use via USDC x402.

Side effects

Invalid 'from' or 'to' enum value returns an error response
Input string exceeding 1 MB (1,048,576 bytes) is rejected
Malformed JSON body returns a parse error
x402 payment failure prevents the call from completing
Incompatible encoding pair (e.g. non-hex characters decoded as hex) may return a decoding error

Input

Schema · Request body

Field	Type	Description
to	string
data	string
from	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "tool": "encode",
    "result": {
      "to": "base58",
      "from": "utf8",
      "bytes": 11,
      "result": "StV1DL6CwTryKyV"
    }
  }
}

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