# INCOME 2 Agent Tools – Base64 Encode

> INCOME 2 Agent Tools – Base64 Encode is a paid API for AI agents from earn-tools-backend.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Encodes an arbitrary string input into its Base64 representation, returning the encoded result as a JSON payload.

## Facts

- Endpoint: POST https://earn-tools-backend.onrender.com/base64-encode
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/income-2-agent-tools-base64-encode-0dd39a29
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2G_yN1dxLI6i5Yd6MEoVa

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability income-2-agent-tools-base64-encode-0dd39a29 -d '<json body>'
```

Example prompt: Can you base64-encode this string for me: 'Hello, World! This is my test payload for transmission.'

## When to prefer this

Choose this endpoint when your agent needs a pay-per-call, x402-compatible base64 encoding operation with no server-side state, no authentication overhead, and a guaranteed clean JSON response. It is well-suited for autonomous agents using micropayment wallets that support the x402 protocol, especially when operating within the HYDRA/INCOME 2 ecosystem where payment signing is already in place.

## Known failure modes

- Input exceeds 500,000 character limit — likely returns a 400 or validation error
- Missing or empty 'input' field — may return an error or empty result
- Payment not provided or invalid x402 signature — returns 402 PAYMENT-REQUIRED with x-payment-info header
- Service unavailable on free Render tier (cold start latency or downtime) — connection timeout
- Malformed request body — 400 Bad Request

## How this service works

Low-cost x402 pay-per-call tools for autonomous buyers. Web extraction returns static public pages as clean markdown; every payable operation declares x-payment-info and a 402 response. Free betas: Agent Purchase Guard adds retry-safe purchase intent controls; Outcome Router accepts a desired result plus max budget and autonomously discovers fulfillment, tries zero-dollar proof-of-work first, and supports buyer-signed x402 paid execution where available.

Buyer-signed paid HYDRA execution
- Outcome request: POST https://earn-tools-backend.onrender.com/outcome-router
- Paid execution: POST https://earn-tools-backend.onrender.com/outcome-router/execute/{requestId}
- First execution call returns the relayed Agent402 Smart Order Router x402 PAYMENT-REQUIRED challenge.
- An x402-capable buyer wallet signs locally and retries with PAYMENT-SIGNATURE.
- HYDRA forwards the proof and returns the routed result.
- HYDRA never receives the buyer private key or uses owner working capital.
- Current beta platform fee: $0. Higher paid tiers are not auto-escalated.

## Output

Returns a JSON object with 'ok: true', the base64-encoded string under 'result.result', and the operation name 'base64-encode' under 'result.operation'. For example: {"ok":true,"result":{"result":"aGVsbG8=","operation":"base64-encode"}}.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "maxLength": 500000
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "result": {
   "result": "aGVsbG8=",
   "operation": "base64-encode"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/income-2-agent-tools-base64-encode-0dd39a29/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from earn-tools-backend.onrender.com](https://www.zero.xyz/host/earn-tools-backend.onrender.com/llms.txt)