# Numora Constraint Solver

> Numora Constraint Solver is a paid API for AI agents from numormor.netlify.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Solves constraint satisfaction problems given a set of variables and constraints using pure mathematical computation

## Facts

- Endpoint: POST https://numormor.netlify.app/api/solve/constraint
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-constraint-solver-b2f03d1f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E56XY1AAWMEPrnuOJGj1D

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 numora-constraint-solver-b2f03d1f -d '<json body>'
```

Example prompt: Can you solve for x, y, and z given the constraints x + y = 10, y - z = 3, and x * z = 12?

## When to prefer this

Use this endpoint when you need to find variable values that simultaneously satisfy a set of mathematical constraints, especially for algebraic feasibility or constraint satisfaction problems. Prefer this over general equation solvers when the problem involves multiple constraints over multiple variables simultaneously. Useful for planning, configuration, or algebraic reasoning tasks where outputs must meet specific conditions.

## Known failure modes

- Unsatisfiable constraints — no solution exists for the given variable and constraint set
- Malformed constraint expressions that cannot be parsed
- Missing required 'variables' or 'constraints' fields returns a validation error
- Underdetermined system — too many degrees of freedom with insufficient constraints
- Payment failure via x402 micropayment resulting in 402 response before computation is attempted

## How this service works

100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.

## Output

Returns a JSON object with success (boolean), result (object containing the solved variable assignments or feasibility status), and computation (human-readable description of what was computed and how the constraints were resolved).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "variables",
  "constraints"
 ],
 "properties": {
  "variables": {
   "type": "object"
  },
  "constraints": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success",
  "result",
  "computation"
 ],
 "properties": {
  "result": {
   "type": "object",
   "description": "Computation result varies by endpoint"
  },
  "success": {
   "type": "boolean",
   "description": "Always true on success"
  },
  "computation": {
   "type": "string",
   "description": "Human-readable description of what was computed"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/numora-constraint-solver-b2f03d1f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormor.netlify.app](https://www.zero.xyz/host/numormor.netlify.app/llms.txt)