diff --git a/packages/binding-coap/tsconfig.json b/packages/binding-coap/tsconfig.json
index 086c6a78f..e9fa7c062 100644
--- a/packages/binding-coap/tsconfig.json
+++ b/packages/binding-coap/tsconfig.json
@@ -2,9 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true,
-        "typeRoots": ["./node_modules/@types", "./typings"]
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-file/tsconfig.json b/packages/binding-file/tsconfig.json
index 99580e07e..e9fa7c062 100644
--- a/packages/binding-file/tsconfig.json
+++ b/packages/binding-file/tsconfig.json
@@ -1,8 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
-        "strictFunctionTypes": true,
         "outDir": "dist",
         "rootDir": "src"
     },
diff --git a/packages/binding-http/src/routes/action.ts b/packages/binding-http/src/routes/action.ts
index 5112e3b99..4b33780ec 100644
--- a/packages/binding-http/src/routes/action.ts
+++ b/packages/binding-http/src/routes/action.ts
@@ -23,8 +23,13 @@ export default async function actionRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string; action: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined || _params.action === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
     const thing = this.getThings().get(_params.thing);
 
     if (!thing) {
diff --git a/packages/binding-http/src/routes/event.ts b/packages/binding-http/src/routes/event.ts
index 6996f143b..d1fe23257 100644
--- a/packages/binding-http/src/routes/event.ts
+++ b/packages/binding-http/src/routes/event.ts
@@ -22,8 +22,13 @@ export default async function eventRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string; event: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined || _params.event === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
     const thing = this.getThings().get(_params.thing);
 
     if (!thing) {
@@ -62,6 +67,7 @@ export default async function eventRoute(
         if (!isEmpty(uriVariables)) {
             options.uriVariables = uriVariables;
         }
+        const eventName = _params.event;
         const listener = async (value: Content) => {
             try {
                 // send event data
@@ -77,24 +83,22 @@ export default async function eventRoute(
             } catch (err) {
                 // Safe cast to NodeJS.ErrnoException we are checking if it is equal to ERR_HTTP_HEADERS_SENT
                 if ((err as NodeJS.ErrnoException)?.code === "ERR_HTTP_HEADERS_SENT") {
-                    thing.handleUnsubscribeEvent(_params.event, listener, options);
+                    thing.handleUnsubscribeEvent(eventName, listener, options);
                     return;
                 }
                 const message = err instanceof Error ? err.message : JSON.stringify(err);
-                warn(
-                    `HttpServer on port ${this.getPort()} cannot process data for Event '${_params.event}: ${message}'`
-                );
+                warn(`HttpServer on port ${this.getPort()} cannot process data for Event '${eventName}: ${message}'`);
                 res.writeHead(500);
                 res.end("Invalid Event Data");
             }
         };
 
-        await thing.handleSubscribeEvent(_params.event, listener, options);
+        await thing.handleSubscribeEvent(eventName, listener, options);
         res.on("close", () => {
             debug(`HttpServer on port ${this.getPort()} closed Event connection`);
-            thing.handleUnsubscribeEvent(_params.event, listener, options);
+            thing.handleUnsubscribeEvent(eventName, listener, options);
         });
-        res.setTimeout(60 * 60 * 1000, () => thing.handleUnsubscribeEvent(_params.event, listener, options));
+        res.setTimeout(60 * 60 * 1000, () => thing.handleUnsubscribeEvent(eventName, listener, options));
     } else if (req.method === "HEAD") {
         // HEAD support for long polling subscription
         res.writeHead(202);
diff --git a/packages/binding-http/src/routes/properties.ts b/packages/binding-http/src/routes/properties.ts
index a7b0d6a84..0adfa5ba6 100644
--- a/packages/binding-http/src/routes/properties.ts
+++ b/packages/binding-http/src/routes/properties.ts
@@ -22,8 +22,14 @@ export default async function propertiesRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
+
     const thing = this.getThings().get(_params.thing);
 
     if (!thing) {
diff --git a/packages/binding-http/src/routes/property-observe.ts b/packages/binding-http/src/routes/property-observe.ts
index d1b8ddfcd..8535dae39 100644
--- a/packages/binding-http/src/routes/property-observe.ts
+++ b/packages/binding-http/src/routes/property-observe.ts
@@ -22,8 +22,14 @@ export default async function propertyObserveRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string; property: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined || _params.property === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
+
     const thing = this.getThings().get(_params.thing);
 
     if (!thing) {
@@ -62,7 +68,7 @@ export default async function propertyObserveRoute(
             return;
         }
     }
-
+    const propertyName = _params.property;
     if (req.method === "GET") {
         const listener = async (value: Content) => {
             try {
@@ -79,7 +85,7 @@ export default async function propertyObserveRoute(
             } catch (err) {
                 // Safe cast to NodeJS.ErrnoException we are checking if it is equal to ERR_HTTP_HEADERS_SENT
                 if ((err as NodeJS.ErrnoException)?.code === "ERR_HTTP_HEADERS_SENT") {
-                    thing.handleUnobserveProperty(_params.property, listener, options);
+                    thing.handleUnobserveProperty(propertyName, listener, options);
                     return;
                 }
                 const message = err instanceof Error ? err.message : JSON.stringify(err);
@@ -95,9 +101,9 @@ export default async function propertyObserveRoute(
         await thing.handleObserveProperty(_params.property, listener, options);
         res.on("finish", () => {
             debug(`HttpServer on port ${this.getPort()} closed connection`);
-            thing.handleUnobserveProperty(_params.property, listener, options);
+            thing.handleUnobserveProperty(propertyName, listener, options);
         });
-        res.setTimeout(60 * 60 * 1000, () => thing.handleUnobserveProperty(_params.property, listener, options));
+        res.setTimeout(60 * 60 * 1000, () => thing.handleUnobserveProperty(propertyName, listener, options));
     } else if (req.method === "HEAD") {
         // HEAD support for long polling subscription
         // TODO: set the Content-Type header to the type of the property
diff --git a/packages/binding-http/src/routes/property.ts b/packages/binding-http/src/routes/property.ts
index 47cc72b7e..919780240 100644
--- a/packages/binding-http/src/routes/property.ts
+++ b/packages/binding-http/src/routes/property.ts
@@ -22,8 +22,14 @@ export default async function propertyRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string; property: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined || _params.property === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
+
     const thing = this.getThings().get(_params.thing);
 
     if (!thing) {
diff --git a/packages/binding-http/src/routes/thing-description.ts b/packages/binding-http/src/routes/thing-description.ts
index 136787595..4a29a4272 100644
--- a/packages/binding-http/src/routes/thing-description.ts
+++ b/packages/binding-http/src/routes/thing-description.ts
@@ -127,8 +127,14 @@ export default async function thingDescriptionRoute(
     this: HttpServer,
     req: IncomingMessage,
     res: ServerResponse,
-    _params: { thing: string }
+    _params: { [k: string]: string | undefined }
 ): Promise<void> {
+    if (_params.thing === undefined) {
+        res.writeHead(400);
+        res.end();
+        return;
+    }
+
     const thing = this.getThings().get(_params.thing);
     if (!thing) {
         res.writeHead(404);
diff --git a/packages/binding-http/test/http-server-test.ts b/packages/binding-http/test/http-server-test.ts
index afd275b0d..c4c6c5164 100644
--- a/packages/binding-http/test/http-server-test.ts
+++ b/packages/binding-http/test/http-server-test.ts
@@ -289,9 +289,9 @@ class HttpServerTest {
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
         testThing.properties.test.forms = [];
-        testThing.setActionHandler("try", (input: WoT.InteractionOutput, params: InteractionOptions) => {
+        testThing.setActionHandler("try", (input: WoT.InteractionOutput, params?: InteractionOptions) => {
             return new Promise<string>((resolve, reject) => {
-                expect(params.uriVariables).to.deep.equal({ step: 5 });
+                expect(params?.uriVariables).to.deep.equal({ step: 5 });
                 resolve("TEST");
             });
         });
diff --git a/packages/binding-http/tsconfig.json b/packages/binding-http/tsconfig.json
index df9cd1d90..e9fa7c062 100644
--- a/packages/binding-http/tsconfig.json
+++ b/packages/binding-http/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-mbus/tsconfig.json b/packages/binding-mbus/tsconfig.json
index df9cd1d90..e9fa7c062 100644
--- a/packages/binding-mbus/tsconfig.json
+++ b/packages/binding-mbus/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-modbus/test/test-modbus-server.ts b/packages/binding-modbus/test/test-modbus-server.ts
index f0eeba4dd..6d223228f 100644
--- a/packages/binding-modbus/test/test-modbus-server.ts
+++ b/packages/binding-modbus/test/test-modbus-server.ts
@@ -78,9 +78,9 @@ export default class ModbusServer {
 
     public start(): Promise<unknown> {
         return new Promise((resolve) => {
-            this.serverTCP.on("SocketError", (err: Error) => {
+            this.serverTCP.on("SocketError", (err: Error | null) => {
                 // Handle socket error if needed, can be ignored
-                error(err.toString());
+                error("SocketError:", err?.toString());
             });
             this.serverTCP.on("error", (err) => {
                 debug(err?.toString());
diff --git a/packages/binding-modbus/tsconfig.json b/packages/binding-modbus/tsconfig.json
index df9cd1d90..e9fa7c062 100644
--- a/packages/binding-modbus/tsconfig.json
+++ b/packages/binding-modbus/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-mqtt/tsconfig.json b/packages/binding-mqtt/tsconfig.json
index df9cd1d90..e9fa7c062 100644
--- a/packages/binding-mqtt/tsconfig.json
+++ b/packages/binding-mqtt/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-netconf/tsconfig.json b/packages/binding-netconf/tsconfig.json
index 17fe8a159..e9fa7c062 100644
--- a/packages/binding-netconf/tsconfig.json
+++ b/packages/binding-netconf/tsconfig.json
@@ -1,7 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
         "outDir": "dist",
         "rootDir": "src"
     },
diff --git a/packages/binding-opcua/tsconfig.json b/packages/binding-opcua/tsconfig.json
index 401574083..65cfae503 100644
--- a/packages/binding-opcua/tsconfig.json
+++ b/packages/binding-opcua/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["./src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/binding-websockets/tsconfig.json b/packages/binding-websockets/tsconfig.json
index df9cd1d90..e9fa7c062 100644
--- a/packages/binding-websockets/tsconfig.json
+++ b/packages/binding-websockets/tsconfig.json
@@ -2,8 +2,7 @@
     "extends": "../../tsconfig.json",
     "compilerOptions": {
         "outDir": "dist",
-        "rootDir": "src",
-        "strict": true
+        "rootDir": "src"
     },
     "include": ["src/**/*"],
     "references": [{ "path": "../td-tools" }, { "path": "../core" }]
diff --git a/packages/cli/tsconfig.json b/packages/cli/tsconfig.json
index 6531df4d3..2a18482f3 100644
--- a/packages/cli/tsconfig.json
+++ b/packages/cli/tsconfig.json
@@ -1,8 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
-        "strictFunctionTypes": true,
         "outDir": "dist",
         "rootDir": "src",
         "resolveJsonModule": true,
diff --git a/packages/core/tsconfig.json b/packages/core/tsconfig.json
index c97540a51..4bc652caa 100644
--- a/packages/core/tsconfig.json
+++ b/packages/core/tsconfig.json
@@ -1,8 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
-        "strictFunctionTypes": true,
         "resolveJsonModule": true,
         "outDir": "dist",
         "rootDir": "src"
diff --git a/packages/examples/src/bindings/coap/example-client.ts b/packages/examples/src/bindings/coap/example-client.ts
index 1c937641b..b815f0aac 100644
--- a/packages/examples/src/bindings/coap/example-client.ts
+++ b/packages/examples/src/bindings/coap/example-client.ts
@@ -24,7 +24,8 @@ servient.addClientFactory(new CoapClientFactory());
 const wotHelper = new Helpers(servient);
 wotHelper
     .fetch("coap://plugfest.thingweb.io:5683/testthing")
-    .then(async (td: ThingDescription) => {
+    .then(async (fetched) => {
+        const td: ThingDescription = fetched as ThingDescription;
         // using await for serial execution (note 'async' in then() of fetch())
         try {
             const WoT = await servient.start();
diff --git a/packages/examples/src/bindings/http/example-client.ts b/packages/examples/src/bindings/http/example-client.ts
index 0983f3208..bab479dda 100644
--- a/packages/examples/src/bindings/http/example-client.ts
+++ b/packages/examples/src/bindings/http/example-client.ts
@@ -24,7 +24,8 @@ servient.addClientFactory(new HttpClientFactory());
 const wotHelper = new Helpers(servient);
 wotHelper
     .fetch("http://plugfest.thingweb.io:8083/testthing")
-    .then(async (td: ThingDescription) => {
+    .then(async (fetched) => {
+        const td: ThingDescription = fetched as ThingDescription;
         // using await for serial execution (note 'async' in then() of fetch())
         try {
             const WoT = await servient.start();
diff --git a/packages/examples/tsconfig.json b/packages/examples/tsconfig.json
index 61b6c09bc..63049fbba 100644
--- a/packages/examples/tsconfig.json
+++ b/packages/examples/tsconfig.json
@@ -1,7 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
         "outDir": "dist",
         "rootDir": "src",
         "target": "ES2018",
diff --git a/packages/td-tools/tsconfig.json b/packages/td-tools/tsconfig.json
index e0a29e71a..b2c3d8edc 100644
--- a/packages/td-tools/tsconfig.json
+++ b/packages/td-tools/tsconfig.json
@@ -1,8 +1,6 @@
 {
     "extends": "../../tsconfig.json",
     "compilerOptions": {
-        "strict": true,
-        "strictFunctionTypes": true,
         "resolveJsonModule": true,
         "types": ["node", "readable-stream"],
         "outDir": "dist",
diff --git a/tsconfig.json b/tsconfig.json
index 6738a4b40..5b3cda168 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,12 +5,10 @@
         "skipLibCheck": false,
         "module": "commonjs",
         "outDir": "dist",
-        "alwaysStrict": true,
-        "strict": false,
+        "strict": true,
         "composite": true,
         "incremental": true,
         "sourceMap": true,
-        "noImplicitAny": true,
         "noImplicitReturns": true,
         "removeComments": true,
         "noLib": false,
@@ -18,11 +16,8 @@
         "experimentalDecorators": true,
         "declaration": true,
         "esModuleInterop": true,
-        "strictFunctionTypes": false,
         "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
         "resolveJsonModule": false,
-        "noStrictGenericChecks": false,
-        "noImplicitThis": true,
         "skipDefaultLibCheck": false,
         "allowJs": false
     },