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Base64 Encode/Decode Tool (x402 Gateway)
x402
Base64 Encode/Decode Tool (x402 Gateway) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.0001/call, status down (last checked 2026-09-15).
Encodes or decodes Base64 (standard or URL-safe) for a given text string, paid per-call via x402 USDC on Base.
Price / call$0.0001
Success—
StatusDown
How this service works
Low-price OpenAI-compatible GPT-5.5 chat completions and text tools over x402 USDC on Base: $0.0001 compact requests, $0.066667 true max-output requests, no subscription.
Output
A JSON object with ok (boolean), tool name ('base64Codec'), the encoded or decoded result string, and a fetchedAt timestamp.
Example use cases
Example prompt
“Can you base64-encode the text 'Hello, World!' for me — use URL-safe mode?”
Technical details
Endpoint
POSThttps://gpt55.558686.xyz/v1/tools/base64-codecWhen to prefer
Use this endpoint when you need a simple, pay-per-call Base64 encode or decode operation via x402 micropayment on Base, without subscribing to a larger service. Suitable for agents that need occasional Base64 transformations and want to avoid API key management.
Side effects
- Missing required 'text' query parameter returns an error
- Text exceeds 20,000 character limit returns validation error
- Invalid 'mode' value (not 'encode' or 'decode') returns 400
- Insufficient USDC balance or x402 payment failure returns 402
- Network/gateway timeout returns 5xx
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"mode": "encode",
"text": "Hello, World!",
"urlsafe": true
}
}
}Output
{
"ok": true,
"mode": "encode",
"tool": "base64Codec",
"output": "SGVsbG8sIFdvcmxkIQ",
"urlsafe": true,
"fetchedAt": "2026-06-18T06:31:28.540Z"
}Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "base64Codec",
"summary": "Encode or decode Base64 using x402 USDC payment"
}
}Tags
x402
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