> For the complete documentation index, see [llms.txt](https://docs.startrail.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.startrail.io/readme.md).

# Startrail PORT: All in one document for API/SDK

### What is Startrail API?

Connect to our Issue API, Transfer API, and Wallet Integration SDK and build your own web3 website, app, or platform

### Why Startrail API?

Bring your NFT app, ecommerce, or marketplace to life faster and at lower cost with our Issue & Transfer API, Secondary Transfer API, and Wallet Integration SDK - nocrypto currency integration required.

### Agreement

In order to refer or use API/SDK, you should agree to terms and conditions. Please read [Terms of Service](https://help.port.startrail.io/hc/en-us/articles/12968031055511) of Startrail PORT carefully before getting started. If you have any questions, please [Contact Us](https://startbahn.io/contact).

For each product, please check the respective section in the side bar.

### Using an AI coding assistant?

This documentation ships machine-readable resources so tools like Claude, Cursor and Copilot can integrate Startrail accurately:

* **`llms.txt`** — a curated index of every page in these docs ([llmstxt.org](https://llmstxt.org) format), with a one-line description and link for each. Point your AI tool at it for a fast, accurate map of the API and SDK.
* **`AGENTS.md`** — orientation for AI agents: the two integration surfaces (REST API vs. browser SDK), the domain glossary (SRR, LUW, EOA, collection), environment base URLs, and the canonical SDK flow.

The browser SDK additionally bundles its own reference at `node_modules/@startbahn/startrail-sdk-js/llms.txt` — prefer it when generating SDK code.


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.startrail.io/readme.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
