# URL Shortener
> ⚠️ **Experimental — generated with no human supervision.** This realm was
> produced automatically by an MCP-driven agent to exercise the gno MCP server
> and tooling, and to generate test content for gno compilers, linters and
> formatters. **Not audited. Not for production.** Full context & folder README:
> [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md)
---
An on-chain alias registry for the gno.land sapphire testnet. Each caller can
register `alias -> url` mappings they own: an alias is claimed on a first-come
basis, only its owner may update or remove it, and every resolution through
`Render("/<alias>")` bumps a per-alias click counter. Aliases must be non-empty
and alphanumeric.
**Realm path:** `gno.land/r/REPLACE_ADDR/urlshort`
## Example calls
```
# Register (or update your own) alias -> url
Shorten("gno", "https://gno.land", "the chain")
# Update the target (must be the same owner)
Shorten("gno", "https://docs.gno.land", "now the docs")
# Remove an alias you own
Remove("gno")
```
## Render paths
- `/` — lists every alias with owner and click count.
- `/<alias>` — shows the target url, owner, note, and click count (and counts the click).
<!-- BEGIN GNOCONTRACTS FOOTER (generated by `make readmes`; do not edit below) -->
---
Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.
**Dependency graph:**
> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).
<!-- END GNOCONTRACTS FOOTER -->
Lookup(alias string) (string, bool)
Remove(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}, alias string)
Render(path string) string
Shorten(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}, alias string, url string, note string)
Signatures reconstructed verbatim from vm/qfuncs — interface params keep their inline definitions.
vm/qrender output, sanitized (docs/render-security.md) and displayed in an empty-sandbox iframe — scripts, forms and popups cannot run. Links stay inert in-preview; right-click to open.