# x402-toolbox Symbolic Math Calculator

> x402-toolbox Symbolic Math Calculator is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Evaluates symbolic math expressions and returns computed results via a pay-per-call x402 endpoint

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/math/symbolic-math-calculator?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-symbolic-math-calculator-1ab0dab1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dOZa3MdSK4xusuuvxkQpL

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 x402-toolbox-symbolic-math-calculator-1ab0dab1
```

Example prompt: Can you symbolically compute the derivative of x^3 + 2*x^2 - 5 with respect to x?

## When to prefer this

Choose this endpoint when you need deterministic, symbolic math computation (not just numeric approximation) without signing up for a service or managing API keys — payment via USDC on Base is the only credential required. Prefer over general LLM math when exact symbolic manipulation (derivatives, integrals, factoring, simplification) is needed.

## Known failure modes

- Malformed expression string leads to a parse error or unexpected result
- Unsupported symbolic operations may return an error or empty result
- Missing or invalid schema parameter may result in a 400 or error response
- Payment failure via x402 prevents access entirely

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with ok: true and paid: true, along with the symbolic math result of the evaluated expression, such as a simplified form, derivative, integral, or solution.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-symbolic-math-calculator-1ab0dab1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)