# Numora Constraint Solver

> Numora Constraint Solver is a paid API for AI agents from numorapoi.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-18).

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

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/solve/constraint?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-constraint-solver-api-92a4d456
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sSkOyQmCcB2pZCkSqfX9y

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-api-92a4d456 -d '<json body>'
```

Example prompt: I need to find values for x and y such that x + y = 10, x >= 2, and y <= 7 — can you solve that constraint problem for me?

## When to prefer this

Use this endpoint when you need to solve a constraint satisfaction or feasibility problem involving named variables and a list of mathematical constraints, especially when you want a pure serverless math computation with no external dependencies and pay-per-call pricing. Prefer over full optimization solvers when the task is feasibility or exact constraint solving rather than objective minimization.

## Known failure modes

- Infeasible constraints — no solution exists for the given variable-constraint combination
- Malformed input — missing required fields 'variables' or 'constraints' returns validation error
- Underdetermined system — too few constraints to uniquely determine variables
- Payment failure — x402 micropayment of $0.1 USDC not completed, returns 402
- Timeout — computationally expensive constraint sets may exceed processing limits

## 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 variable assignments or solution values satisfying all constraints), and computation (a human-readable string describing what was computed).

## 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-api-92a4d456/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numorapoi.orbonomy.xyz](https://www.zero.xyz/host/numorapoi.orbonomy.xyz/llms.txt)