# Page Not Found

The URL `testnet-legacy/bridging-from-l2-to-l1/bridging-erc-20-token` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Staking of dApp Token](https://docs.altlayer.io/altlayer-documentation/restaked-rollups/staking-of-dapp-token.md)
- [cBridge SDK](https://docs.altlayer.io/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/cbridge-sdk.md)
- [Deplying Hyperlane Warp Routes for ERC20 Token Bridging](https://docs.altlayer.io/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane/deplying-hyperlane-warp-routes-for-erc20-token-bridging.md)
- [Running Off-chain Agents](https://docs.altlayer.io/altlayer-documentation/external-integrations/enabling-permissionless-interoperability-on-altlayer-rollup-with-hyperlane/running-off-chain-agents.md)
- [Non-fungible Token Bridging](https://docs.altlayer.io/altlayer-documentation/external-integrations/cross-chain-interoperability-using-celer/non-fungible-token-bridging.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.altlayer.io/altlayer-documentation/restaked-rollups/staking-of-dapp-token.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.altlayer.io/altlayer-documentation/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.altlayer.io/altlayer-documentation/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/altlayer-documentation/restaked-rollups/staking-of-dapp-token.md`).

You may also use `Accept: text/markdown` header for content negotiation.