> ## Documentation Index
> Fetch the complete documentation index at: https://docs.istravex.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Short answers to the questions people ask first.

> [accordion] Isn't this what stellar-core's tests already do?
>
> Core's tests check that core produces the right ledger. Istravex checks what happens *after*: whether SDKs decode it exactly, and whether indexers store what it means. It also uses core's [golden ledgers](https://docs.istravex.com/corpus/goldens.md) directly, as a second corpus.

> [accordion] Why only six fixtures?
>
> Each one is real, verified byte for byte against its ledger, and discriminates: a known-wrong indexer fails it and a known-right one passes. A thousand fixtures that everything passes would test nothing. Breadth comes from the 15,306 golden frames; the corpus is for targeted patterns, and it's [growing](https://docs.istravex.com/project/roadmap.md).

> [accordion] Do I need Go and Rust to use it?
>
> No. To lint Go code you need Go. To replay into your indexer you need nothing but an HTTP client and the [hosted RPC](https://docs.istravex.com/api-reference/rpc.md). Go and Rust are only needed to run all three SDK runners yourself.

> [accordion] My indexer isn't written in Go. Is the guide still relevant?
>
> Yes. Every rule applies in any language; only the linter is Go-specific. The [64-bit integers](https://docs.istravex.com/guide/wide-integers.md) rule matters most in JavaScript and Python.

> [accordion] My indexer reads from Horizon or Galexie, not RPC.
>
> The canonical ledgers are available as files (`GET /v1/ledgers/{network}/{seq}`) in the same zstd `LedgerCloseMetaBatch` format as SDF's data lake, so a Galexie-style reader can consume them directly. A Horizon-compatible mock isn't planned.

> [accordion] Can I trust the expected values?
>
> They come from sources independent of the SDKs under test: Horizon for mainnet, the transaction as constructed for testnet and generated fixtures. And the fixtures themselves are proven byte-identical to the ledger. If you still think one is wrong, open an issue; that's a finding too.

> [accordion] Is the hosted API rate limited?
>
> Yes: 1,200 requests per minute for the read API and 300 for RPC, per client. For more, [run your own](https://docs.istravex.com/operations/self-hosting.md).


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