# Certificate Transparency tools

Tools for working with [Static CT log](https://c2sp.org/static-ct-api) tiles.

## Install

```bash
GOPRIVATE=git.ipng.ch go install git.ipng.ch/certificate-transparency/ctfetch/cmd/ctool@latest
```

The `GOPRIVATE` variable skips the Go checksum database and module proxy, which do not index modules on `git.ipng.ch`.

## Commands

### ctool fetch

Fetch and decode entries from a Static CT log as structured JSON.

```bash
ctool fetch https://halloumi2026h1.mon.ct.ipng.ch 1338427439 +all
```

→ [Full documentation](docs/ctfetch.md)

### ctool tail

Tail a Static CT log, printing a one-liner per new cert/precert as it arrives.

```bash
ctool tail https://gouda2026h2.mon.ct.ipng.ch
```

→ [Full documentation](docs/ctail.md)