# References

## Looking for an older version of a document?

### DApp SDK

Helps decentralized application (DApp) developers using the imToken Wallet app to leverage all functions of the imToken DApp SDK.

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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### Tokenlon Onboarding

Tokenlon market maker docking document

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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### Tokenlon MMSK

An intermediate proxy that connects the imToken Server and the market maker service, which is used to reduce the cost of communication at both ends.

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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### Tokenlon MMProxy

A market-based token repositories library, an Ethereum Smart Contract (MMProxy) written using Solidity.

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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### Tokenlon JS SDK

A JS tool that provided to interface with the Tokenlon Trading API.

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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### Tokenlon OpenAPI

Tokenlon Open APIs, provide both RPC and restful APIs.

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[Broken link](https://imtoken.gitbook.io/developers/broken-reference)
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