# Rengi Forge GLB Inspector

> Rengi Forge GLB Inspector is a paid API for AI agents from rengi.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-22).

Inspects a GLB 3D file and returns a detailed analysis of triangles, draw calls, materials, texture memory, animations, glTF validator errors, and concrete optimization suggestions — without modifying the file.

## Facts

- Endpoint: POST https://rengi.dev/v1/glb-optimizer/inspect?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rengi-forge-glb-inspector-b2bfbdae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SkfxmXuXtoc11qOVkryIT

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 rengi-forge-glb-inspector-b2bfbdae -d '<json body>'
```

Example prompt: Can you inspect my GLB at https://assets.example.com/character.glb and tell me how many triangles and draw calls it has, what texture memory it's using, and what I should fix to make it lighter?

## When to prefer this

Use this endpoint when you need a read-only diagnostic pass on a GLB — to understand its current state before deciding whether or how to optimize. Prefer this over the sibling 'shrink' or 'LOD' endpoints when you want a human-readable report with concrete suggestions rather than a transformed output file. Ideal for CI/CD pipelines, artist review workflows, or any situation where you need to audit a model without committing to changes.

## Known failure modes

- Invalid or unreachable glbUrl returns a fetch/network error
- Malformed or non-GLB binary data returns a parsing error
- File exceeds size limits returns a payload-too-large error
- glTF validator finds critical structural errors that prevent analysis
- Missing both 'glb' and 'glbUrl' fields returns a validation error
- Payment not completed returns a 402 Payment Required response

## How this service works

GLB optimizer: Inspect a GLB without changing it: triangles, draw calls, materials, texture memory, animations, glTF validator errors, and concrete suggestions to make it lighter. Full schema: https://rengi.dev/v1/glb-optimizer/schema

## Output

Returns a structured analysis report including: total triangle count, number of draw calls, list of materials, texture memory consumption, animation metadata, any glTF spec validation errors, and a prioritized list of concrete suggestions to reduce file size and improve rendering performance — without altering the original file.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "glb": {
   "type": "string"
  },
  "glbUrl": {
   "type": "string",
   "format": "uri"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rengi-forge-glb-inspector-b2bfbdae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rengi.dev](https://www.zero.xyz/host/rengi.dev/llms.txt)