> For the complete documentation index, see [llms.txt](https://developers.polymath.network/polymesh-sdk-api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.polymath.network/polymesh-sdk-api-reference/docs-v8/interfaces/constructorparams.md).

# ConstructorParams

## Hierarchy

* **ConstructorParams**

## Index

### Properties

* [keyring](/polymesh-sdk-api-reference/docs-v8/interfaces/constructorparams.md#keyring)
* [middlewareApi](/polymesh-sdk-api-reference/docs-v8/interfaces/constructorparams.md#middlewareapi)
* [polymeshApi](/polymesh-sdk-api-reference/docs-v8/interfaces/constructorparams.md#polymeshapi)
* [ss58Format](/polymesh-sdk-api-reference/docs-v8/interfaces/constructorparams.md#ss58format)

## Properties

### keyring

• **keyring**: [*CommonKeyring*](/polymesh-sdk-api-reference/docs-v8/globals.md#commonkeyring)

*Defined in* [*src/base/Context.ts:86*](https://github.com/PolymathNetwork/polymesh-sdk/blob/7362b318/src/base/Context.ts#L86)

### middlewareApi

• **middlewareApi**: *ApolloClient‹NormalizedCacheObject› | null*

*Defined in* [*src/base/Context.ts:85*](https://github.com/PolymathNetwork/polymesh-sdk/blob/7362b318/src/base/Context.ts#L85)

### polymeshApi

• **polymeshApi**: *ApiPromise*

*Defined in* [*src/base/Context.ts:84*](https://github.com/PolymathNetwork/polymesh-sdk/blob/7362b318/src/base/Context.ts#L84)

### ss58Format

• **ss58Format**: *number*

*Defined in* [*src/base/Context.ts:87*](https://github.com/PolymathNetwork/polymesh-sdk/blob/7362b318/src/base/Context.ts#L87)