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# API Reference

This section documents the public MeshKit TypeScript API.

## Navigation

| API                                                              | Purpose                               |
| ---------------------------------------------------------------- | ------------------------------------- |
| [init()](/meshkit-documentation/api/init.md)                     | Create a MeshKit client instance.     |
| [testConnection()](/meshkit-documentation/api/testconnection.md) | Validate provider authentication.     |
| [store()](/meshkit-documentation/api/store.md)                   | Store JSON-compatible data on IPFS.   |
| [retrieve()](/meshkit-documentation/api/retrieve.md)             | Retrieve JSON-compatible data by CID. |
| [upload()](/meshkit-documentation/api/upload.md)                 | Upload a `Blob` or `File`.            |
| [download()](/meshkit-documentation/api/download.md)             | Download a file as a `Blob`.          |
| [send()](/meshkit-documentation/api/send.md)                     | Store a simple recipient message.     |
| [receive()](/meshkit-documentation/api/receive.md)               | Retrieve a stored recipient message.  |
| [revoke()](/meshkit-documentation/api/revoke.md)                 | Unpin a CID from Pinata.              |

## Shared Models

### MeshkitConfig

```ts
interface MeshkitConfig {
  provider: "pinata" | "filebase" | "storacha";
  providerToken: string;
  gatewayUrl?: string;
  keyService?: KeyService;
}
```

`providerToken` is currently used as the Pinata JWT. `gatewayUrl` is optional and defaults to the Pinata public gateway. `keyService` is defined but not used by the current implementation.

### MeshkitRecord

```ts
interface MeshkitRecord<T = any> {
  cid: string;
  timestamp: number;
  data?: T;
  size: number;
}
```

Write operations return a record containing the CID, a Unix timestamp in milliseconds, optional data, and a size value.

### MeshkitMessage

```ts
interface MeshkitMessage {
  recipientId: string;
  payload: string;
  timestamp: number;
}
```

`send()` stores this object and `receive()` retrieves it.

### StoreOptions

```ts
interface StoreOptions {
  encrypt?: boolean;
  label?: string;
}
```

These options are accepted by the method signature but are not currently applied by the implementation.

### RetrieveOptions

```ts
interface RetrieveOptions {
  decrypt?: boolean;
}
```

This option is accepted by the method signature but is not currently applied by the implementation.

## Current Provider

Pinata is the only implemented provider. The `provider` union type includes `"filebase"` and `"storacha"`, but `Meshkit.init()` currently constructs `PinataProvider`.

Planned, not yet implemented:

* Filebase provider support
* Storacha provider support

## Related Guides

* [Getting Started](/meshkit-documentation/getting-started.md)
* [Authentication](/meshkit-documentation/authentication.md)
* [Architecture Overview](/meshkit-documentation/architecture.md)
* [Error Handling](/meshkit-documentation/error-handling.md)


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