# minia2a Chebyshev Polynomial Calculator

> minia2a Chebyshev Polynomial Calculator is a paid API for AI agents from minia2a.uk, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Computes Chebyshev polynomial values or approximations for given mathematical inputs

## Facts

- Endpoint: GET https://minia2a.uk/x402/chebyshev?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/minia2a-chebyshev-polynomial-calculator-9fd903eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nit8T2kOayYsL04MBDEdH

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 minia2a-chebyshev-polynomial-calculator-9fd903eb
```

Example prompt: Can you compute the Chebyshev polynomial of the first kind (T) for x=0.75 using the recurrence method?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call API for Chebyshev polynomial evaluation without setting up a local math library. Ideal for agents needing on-demand numerical computation in workflows where installing scipy or numpy is not practical, or when computation must happen as a discrete external service call within an agentic pipeline.

## Known failure modes

- Missing required 'input' field returns validation error
- Invalid or unsupported polynomial type string causes bad request
- Out-of-domain input values (e.g. outside [-1,1] for standard Chebyshev) may return NaN or error
- Unrecognized method parameter may cause computation failure
- Service unavailability returns 402 or 5xx if payment or server issue occurs

## How this service works

minia2a service: x402-chebyshev

## Output

Returns the computed Chebyshev polynomial value or approximation result for the given input, likely as a numeric output object with the evaluated result and metadata about the type and method used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "method": {
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/minia2a-chebyshev-polynomial-calculator-9fd903eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from minia2a.uk](https://www.zero.xyz/host/minia2a.uk/llms.txt)