# Tool store and rankings

Use this document to discover a model, tool, plugin, or app. Build owns developer controls; Rankings owns public comparison data.

## Surfaces

| Surface | URL | Purpose |
|---|---|---|
| Build | https://build.core.so | Account access, project keys, testing, and publishing. |
| Rankings | https://rankings.core.so | Intelligence, cost, popularity, and comparisons. |
| Popularity | https://rankings.core.so/leaderboard | Observed usage rankings. |
| Compare | https://rankings.core.so/compare | Side-by-side models and tools. |

## Search supply

Catalog search is public and read-only.

```sh
curl -s https://build.core.so/api/search \
  -H "content-type: application/json" \
  -d '{"query":"scrape a web page","limit":5}'
```

| Supply | Meaning |
|---|---|
| Model | Routed inference with published price and evidence. |
| Tool | Callable capability with a pinned schema. |
| Plugin | User-owned service connection; credentials do not enter the catalog. |
| App | Content-pinned installable artifact. |

## Trust and pins

A definition pin hashes the callable schema Core vetted. Core re-verifies it before paid dispatch. Schema drift causes trust `0`, suspension, and dispatch refusal. An unreachable endpoint lowers trust and ranking but is not classified as schema drift. Reviews may affect ranking; they cannot bypass a pin or restore a drifted definition.

Missing measurements remain missing. Do not interpret “not measured” as zero, and do not infer callability from a ranking page.

## Related

- [Publishing tools](https://docs.core.so/publishing-supply.md)
- [Account access](https://docs.core.so/mcp-account-access.md)