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

# Resources

> Reference material, changelogs and help for building on Eco: supported chains and tokens, contract addresses, the glossary, the docs, API and Sauce SDK changelogs, the FAQ, security and audits, and support channels.

## Reference

> **[Supported chains and tokens](/resources/supported-chains-tokens)**
>
> Discover chains and tokens with `GET /v1/chains` and `GET /v1/tokens`.

> **[Contract addresses](/resources/contract-addresses)**
>
> Deployed Routes contracts per chain. Sauce addresses are under [Architecture and deployments](/programmable-transactions/sauce/architecture-and-deployments#deployments).

> **[Intent types](/resources/intent-types)**
>
> The four shapes a quote can take and how each is fulfilled, verified and tracked: direct fulfillment, CCTP fulfillment, swap and bridge, bridge and swap.

> **[Glossary](/concepts/glossary)**
>
> Definitions of terms used in the docs.

## Changelog

> **[Docs and platform](/resources/changelog/docs)**
>
> Navigation, product and coverage changes, newest first.

> **[API](/resources/changelog/api)**
>
> The v1 reference, wire format, key policy, quote signatures, Gateway paths.

> **[Sauce SDK](/resources/changelog/sauce-sdk)**
>
> npm releases of the compiler and SDK, engines and Kitchens 1.0.0.

## Help

> **[FAQ](/resources/faq)**
>
> Keys, fulfillment time, refunds, chains, Solana, Sauce, deposit addresses, agents.

> **[Security and audits](/resources/security)**
>
> Routes and Sauce security properties, the Cantina portfolio, key handling, reporting.

> **[Support and community](/resources/support)**
>
> Discord, contact addresses, public repositories, social channels.

## Elsewhere in the docs

| Looking for | Go to |
| - | - |
| Endpoint-by-endpoint contract | [API reference](/api-reference/introduction) |
| Every export of the Sauce packages | [SDK reference](/sdk-reference/sauce/overview) |
| Working guides and complete programs | [Cookbook](/cookbook/overview) |
| Agent skills, MCP server, llms.txt | [Build with AI agents](/get-started/build-with-agents) |
| Audit reports and bounty information | [Cantina portfolio](https://cantina.xyz/portfolio/f4ef1cd6-860e-4f58-82de-09751baea324) |


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