diff --git a/src/files.ts b/src/files.ts
new file mode 100644
index 0000000..8f99880
--- /dev/null
+++ b/src/files.ts
@@ -0,0 +1,33 @@
+import type { Ed25519Keypair, Err } from "libskynet";
+import { OverwriteDataFn, ReadDataFn } from "./index.js";
+
+export interface IndependentFileSmallMetadata {
+  largestHistoricSize: bigint;
+}
+
+export interface IndependentFileSmall {
+  dataKey: Uint8Array;
+  fileData: Uint8Array;
+  inode: string;
+  keypair: Ed25519Keypair;
+  metadata: IndependentFileSmallMetadata;
+  revision: bigint;
+  seed: Uint8Array;
+
+  skylink: string;
+  viewKey: string;
+
+  overwriteData: OverwriteDataFn;
+
+  readData: ReadDataFn;
+}
+
+export interface SslData {
+  cert?: Uint8Array;
+  key?: Uint8Array;
+}
+
+export interface SavedSslData {
+  cert?: IndependentFileSmall;
+  key?: IndependentFileSmall;
+}
diff --git a/src/index.ts b/src/index.ts
index c838195..06e100b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,125 +1,3 @@
-import tls from "tls";
-import type { Logger } from "loglevel";
-import type { Ed25519Keypair, Err } from "libskynet";
-import type express from "express";
-import type Config from "@lumeweb/cfg";
-
-export interface RPCRequest {
-  bypassCache?: boolean;
-  module: string;
-  method: string;
-  data: any;
-}
-
-export interface RPCResponse {
-  updated?: number;
-  data?: any;
-  error?: string;
-}
-
-export interface RPCMethod {
-  cacheable: boolean;
-  handler: (
-    request: RPCRequest,
-    sendStream: (stream: AsyncIterable<Uint8Array>) => void
-  ) => Promise<RPCResponse | null>;
-}
-
-export interface StreamFileResponse {
-  data?: Uint8Array;
-  done: boolean;
-}
-
-export type DnsProvider = (ipAddress: string, domain: string) => Promise<void>;
-
-export type PluginFunction = (api: PluginAPI) => Promise<void>;
-
-export interface Plugin {
-  name: string;
-  plugin: PluginFunction;
-  exports?: any;
-  default?: Plugin;
-}
-
-export type RPCStreamHandler = (
-  stream: AsyncIterable<Uint8Array>
-) => Promise<RPCResponse>;
-
-export type OverwriteDataFn = (newData: Uint8Array) => Promise<Err>;
-
-export type ReadDataFn = () => Promise<[Uint8Array, Err]>;
-
-export interface IndependentFileSmallMetadata {
-  largestHistoricSize: bigint;
-}
-
-export interface IndependentFileSmall {
-  dataKey: Uint8Array;
-  fileData: Uint8Array;
-  inode: string;
-  keypair: Ed25519Keypair;
-  metadata: IndependentFileSmallMetadata;
-  revision: bigint;
-  seed: Uint8Array;
-
-  skylink: string;
-  viewKey: string;
-
-  overwriteData: OverwriteDataFn;
-
-  readData: ReadDataFn;
-}
-
-export interface SslData {
-  cert?: Uint8Array;
-  key?: Uint8Array;
-}
-
-export interface SavedSslData {
-  cert?: IndependentFileSmall;
-  key?: IndependentFileSmall;
-}
-
-export interface PluginAPI {
-  config: Config;
-  registerMethod: (methodName: string, method: RPCMethod) => void;
-  loadPlugin: (moduleName: string) => Promise<Plugin>;
-  getMethods: () => string[];
-  ssl: {
-    setContext: (context: tls.SecureContext) => void;
-    getContext: () => tls.SecureContext;
-    getSaved: (retry: boolean) => Promise<boolean | SavedSslData>;
-    set: (
-      cert: IndependentFileSmall | Uint8Array,
-      key: IndependentFileSmall | Uint8Array
-    ) => void;
-    get: () => SslData;
-    save: () => Promise<void>;
-    setCheck(checker: () => Promise<void>): void;
-  };
-  appRouter: {
-    get: () => express.Router;
-    set: (newRouter: express.Router) => void;
-    reset: () => void;
-  };
-  files: {
-    createIndependentFileSmall(
-      seed: Uint8Array,
-      userInode: string,
-      fileData: Uint8Array
-    ): Promise<[IndependentFileSmall, Err]>;
-    openIndependentFileSmall(
-      seed: Uint8Array,
-      userInode: string
-    ): Promise<[IndependentFileSmall, Err]>;
-    overwriteIndependentFileSmall(
-      file: IndependentFileSmall,
-      newData: Uint8Array
-    ): Promise<Err>;
-  };
-  dns: {
-    setProvider(provider: DnsProvider): void;
-  };
-  logger: Logger;
-  getSeed: () => Uint8Array;
-}
+export * from "./rpc.js";
+export * from "./plugin.js";
+export * from "./files.js";
diff --git a/src/plugin.ts b/src/plugin.ts
new file mode 100644
index 0000000..8b1524e
--- /dev/null
+++ b/src/plugin.ts
@@ -0,0 +1,66 @@
+import Config from "@lumeweb/cfg";
+import tls from "tls";
+import { Logger } from "loglevel";
+import { RPCMethod, RPCServer } from "./rpc.js";
+import { IndependentFileSmall, SavedSslData, SslData } from "./files.js";
+import type { express } from "express";
+import type { Err } from "libskynet";
+
+export type PluginFunction = (api: PluginAPI) => Promise<void>;
+
+export type DnsProvider = (ipAddress: string, domain: string) => Promise<void>;
+
+export type OverwriteDataFn = (newData: Uint8Array) => Promise<Err>;
+
+export type ReadDataFn = () => Promise<[Uint8Array, Err]>;
+
+export interface Plugin {
+  name: string;
+  plugin: PluginFunction;
+  exports?: any;
+  default?: Plugin;
+}
+
+export interface PluginAPI {
+  config: Config;
+  registerMethod: (methodName: string, method: RPCMethod) => void;
+  loadPlugin: (moduleName: string) => Promise<Plugin>;
+  getRpcServer: () => RPCServer;
+  ssl: {
+    setContext: (context: tls.SecureContext) => void;
+    getContext: () => tls.SecureContext;
+    getSaved: (retry: boolean) => Promise<boolean | SavedSslData>;
+    set: (
+      cert: IndependentFileSmall | Uint8Array,
+      key: IndependentFileSmall | Uint8Array
+    ) => void;
+    get: () => SslData;
+    save: () => Promise<void>;
+    setCheck(checker: () => Promise<void>): void;
+  };
+  appRouter: {
+    get: () => express.Router;
+    set: (newRouter: express.Router) => void;
+    reset: () => void;
+  };
+  files: {
+    createIndependentFileSmall(
+      seed: Uint8Array,
+      userInode: string,
+      fileData: Uint8Array
+    ): Promise<[IndependentFileSmall, Err]>;
+    openIndependentFileSmall(
+      seed: Uint8Array,
+      userInode: string
+    ): Promise<[IndependentFileSmall, Err]>;
+    overwriteIndependentFileSmall(
+      file: IndependentFileSmall,
+      newData: Uint8Array
+    ): Promise<Err>;
+  };
+  dns: {
+    setProvider(provider: DnsProvider): void;
+  };
+  logger: Logger;
+  getSeed: () => Uint8Array;
+}
diff --git a/src/rpc.ts b/src/rpc.ts
new file mode 100644
index 0000000..20458fe
--- /dev/null
+++ b/src/rpc.ts
@@ -0,0 +1,80 @@
+import type EventEmitter from "events";
+
+export interface RPCRequest {
+  module: string;
+  method: string;
+  data: any;
+}
+
+export interface ClientRPCRequest extends RPCRequest {
+  bypassCache?: boolean;
+}
+
+export interface RPCResponse {
+  updated?: number;
+  data?: any | RPCResponse;
+  error?: string;
+  signature?: string;
+  signedField?: string;
+}
+
+export interface RPCMethod {
+  cacheable: boolean;
+  handler: (req: any) => Promise<any>;
+}
+
+export interface RPCCacheData {
+  [query: string]: RPCCacheItem | null;
+}
+
+export interface RPCCacheItem extends RPCResponse {
+  value: RPCResponse;
+  signature: string;
+}
+
+export interface RPCClearCacheRequest {
+  request: string;
+  relays?: string[];
+}
+
+export type RPCClearCacheResponseRelayList = {
+  [relay: string]: RPCClearCacheResponse;
+};
+
+export interface RPCClearCacheResponse extends RPCResponse {
+  relays?: RPCClearCacheResponseRelayList;
+}
+
+export interface RPCBroadcastRequest {
+  request: RPCRequest;
+  relays: string[];
+}
+
+export interface RPCBroadcastResponse extends RPCResponse {
+  relays: { [relay: string]: RPCResponse };
+}
+
+export declare class RPCServer extends EventEmitter {
+  get cache(): RPCCache;
+  registerMethod(
+    moduleName: string,
+    methodName: string,
+    options: RPCMethod
+  ): void;
+  public getMethods(): string[];
+  public setup(stream: any): any;
+  public signData(data: any): string;
+  public static hashQuery(query: RPCRequest): string;
+}
+export declare class RPCCache extends EventEmitter {
+  get data(): RPCCacheData;
+  constructor(server: RPCServer);
+  public getNodeQuery(
+    node: string,
+    queryHash: string
+  ): Promise<boolean | RPCResponse>;
+  public signResponse(item: RPCCacheItem): any;
+  public verifyResponse(pubkey: Buffer, item: RPCCacheItem): boolean | Buffer;
+  public addItem(query: RPCRequest, response: RPCResponse): void;
+  public deleteItem(queryHash: string): boolean;
+}