# Interface implementations

Bundles

| Description          | Maintainer | Links                                                                                                                                                                       |
| -------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Umi's default bundle | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-bundle-defaults) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-bundle-defaults) |
| Umi's test bundle    | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-bundle-tests) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-bundle-tests)       |

### Signer <a href="#signer" id="signer"></a>

| Description                                | Maintainer | Links                                                                                                                                                                                     |
| ------------------------------------------ | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Internal Signer plugins                    | Metaplex   | [Signers documentation](https://developers.metaplex.com/umi/public-keys-and-signers#signers)                                                                                              |
| Use Solana's Wallet Adapters               | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-signer-wallet-adapters) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-signer-wallet-adapters) |
| Derive new Signers from message signatures | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-signer-derived) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-signer-derived)                 |

### Eddsa Interface <a href="#eddsa-interface" id="eddsa-interface"></a>

| Description          | Maintainer | Links                                                                                                                                                                 |
| -------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Use Solana's web3.js | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-eddsa-web3js) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-eddsa-web3js) |

### RPC Interface <a href="#rpc-interface" id="rpc-interface"></a>

| Description                                                                                                                                             | Maintainer | Links                                                                                                                                                                                     |
| ------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Use Solana's web3.js                                                                                                                                    | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-rpc-web3js) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-rpc-web3js)                         |
| An RPC decorator that chunks `getAccounts` requests into batches of a given size, and run them in parallel to abstract API limitations to the end-user. | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-rpc-chunk-get-accounts) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-rpc-chunk-get-accounts) |

### Transaction Factory Interface <a href="#transaction-factory-interface" id="transaction-factory-interface"></a>

| Description          | Maintainer | Links                                                                                                                                                                                             |
| -------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Use Solana's web3.js | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-transaction-factory-web3js) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-transaction-factory-web3js) |

### Uploader Interface <a href="#uploader-interface" id="uploader-interface"></a>

| Description                                                | Maintainer | Links                                                                                                                                                                                 |
| ---------------------------------------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Uses AWS                                                   | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-uploader-aws) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-uploader-aws)                 |
| Uses Irys.xyz                                              | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-uploader-irys) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-uploader-irys)               |
| Uses NFT.Storage                                           | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-uploader-nft-storage) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-uploader-nft-storage) |
| Uses a local cache to mock uploads and downloads           | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-storage-mock) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-storage-mock)                 |
| Uses 4EVERLAND                                             | 4EVERLAND  | [GitHub](https://github.com/4everland/umi-uploader-4everland) / [NPM](https://www.npmjs.com/package/@4everland/umi-uploader-4everland)                                                |
| Uses Bundlr.network (Deprecated - use `umi-uploader-irys`) | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-uploader-bundlr) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-uploader-bundlr)           |

### Downloader Interface <a href="#downloader-interface" id="downloader-interface"></a>

| Description                                      | Maintainer | Links                                                                                                                                                                       |
| ------------------------------------------------ | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Uses the Http interface                          | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-downloader-http) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-downloader-http) |
| Uses a local cache to mock uploads and downloads | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-storage-mock) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-storage-mock)       |

### Http Interface <a href="#http-interface" id="http-interface"></a>

| Description                                     | Maintainer | Links                                                                                                                                                             |
| ----------------------------------------------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Uses the fetch API via the `node-fetch` library | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-http-fetch) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-http-fetch) |

### Program Repository Interface <a href="#program-repository-interface" id="program-repository-interface"></a>

| Description                                       | Maintainer | Links                                                                                                                                                                             |
| ------------------------------------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Default implementation with no extra dependencies | Metaplex   | [GitHub](https://github.com/metaplex-foundation/umi/tree/main/packages/umi-program-repository) / [NPM](https://www.npmjs.com/package/@metaplex-foundation/umi-program-repository) |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://8bit-1.gitbook.io/solibrary/interface-implementations.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.