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

# Symbiosis Developer Tools

Symbiosis Developer Tools include Symbiosis JS SDK, and Symbiosis API.

## Overview

Symbiosis Developer Tools provide resources for integrating swaps and other supported operations with the Symbiosis protocol.

The main integration method is the **Symbiosis API**. 

{% hint style="info" %}
The Symbiosis JS SDK is deprecated. Existing integrations that still use the SDK should migrate to the Symbiosis API.
{% endhint %}

## Available Features

The Symbiosis API provides access to supported cross-chain and on-chain operations:

1. Swaps across 50+ supported chains, including Ethereum, Tron, Solana, Bitcoin, and other networks.
   * **Cross-chain swaps:** Swap supported tokens across supported blockchain networks.
   * **On-chain swaps:** Swap supported token pairs on a supported network.
2. **Interchain communication**

   Transfer tokens to third-party protocols.
3. **Cross-chain zapping**

   Zap supported tokens into a Symbiosis-managed liquidity pool.
4. **Bridging**

   Mint or burn protocol tokens used for transfers between supported chains and the Symbiosis Host Chain. This feature is mainly used for tokens that support Symbiosis cross-chain swap infrastructure. It is not a general-purpose bridge for any token to any chain.

   For more details, see [Symbiosis sTokens and Supported Chains](/main-concepts/wrapped-tokens.md).

   If a custom token needs to be bridged, it requires additional review and setup on the Symbiosis side. This is handled separately from the standard API integration flow.
5. **Cross-chain operation status tracking**

   Retrieve transaction status updates.

**Note:** “Supported tokens” and “supported token pairs” refer to tokens that can be exchanged through available Symbiosis routes and supported liquidity sources.

## Related Links

* [Symbiosis API](/developer-tools/symbiosis-api.md)
* [Symbiosis Core Smart Contracts Overview](/crosschain-liquidity-engine/symbiosis-core-smart-contracts-overview.md)
* [Security Audits](/main-concepts/security-audits.md)
* Cross-chain swap concepts: [Symbiosis: Cross-Chain Swaps](/main-concepts/symbiosis-cross-chain-swaps.md) 


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