# Skill-Tree Node Generator

> Skill-Tree Node Generator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-30).

Generates a skill tree node with prerequisite, effect, and balance note for game design, given an optional theme, context, and seed.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/skill-tree-nodes?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/skill-tree-node-generator-90fe0223
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JXoj7vbmhA-fxeD63w-1u

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 skill-tree-node-generator-90fe0223 -d '<json body>'
```

Example prompt: Generate 3 skill tree nodes for a dark fantasy RPG where players are necromancers — include prerequisites, effects, and balance notes for each node, using seed 'necro42' so I can reproduce them later.

## When to prefer this

Choose this endpoint when you need structured skill tree node content for game design — specifically when you want each node to come with a prerequisite, mechanical effect, and a balance note in one call. It is ideal for rapid prototyping of RPG talent trees, strategy game skill systems, or any progression mechanic, especially when reproducibility via seed is needed. Prefer it over generic LLM prompting when you want consistently formatted, game-ready skill node data without post-processing.

## Known failure modes

- Invalid count value outside 1-5 range returns a validation error
- Overly vague or contradictory context may produce generic or inconsistent nodes
- No output schema guarantee — response structure may vary
- Payment failure (402) if USDC balance is insufficient
- Seed collisions may produce similar-looking nodes across different themes

## How this service works

Skill-tree node generator: Create a skill node with prerequisite, effect, and balance note.

## Output

Returns one or more skill tree node objects, each containing a node name or title, a prerequisite (what must be unlocked or met before taking this node), an effect description (what the node does mechanically or narratively), and a balance note (commentary on tuning, power level, or design tradeoffs).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seed": {
   "type": "string",
   "description": "Optional repeatable seed."
  },
  "count": {
   "type": "integer",
   "default": 1,
   "maximum": 5,
   "minimum": 1
  },
  "theme": {
   "type": "string",
   "description": "Optional world or project theme."
  },
  "context": {
   "type": "string",
   "description": "Optional constraints or established lore."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/skill-tree-node-generator-90fe0223/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)