diff --git a/modules/express/test/unit/typedRoutes/acceptShare.ts b/modules/express/test/unit/typedRoutes/acceptShare.ts
index 5758a3a4d8..a6fb41dac2 100644
--- a/modules/express/test/unit/typedRoutes/acceptShare.ts
+++ b/modules/express/test/unit/typedRoutes/acceptShare.ts
@@ -18,6 +18,23 @@ export function assertDecode<T>(codec: t.Type<T, unknown>, input: unknown): T {
   return result.right;
 }
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('AcceptShare codec tests', function () {
   describe('AcceptShareRequestParams', function () {
     it('should validate valid params', function () {
@@ -102,6 +119,26 @@ describe('AcceptShare codec tests', function () {
         assert.ok(PostAcceptShare.response[200]);
         assert.ok(PostAcceptShare.response[400]);
       });
+
+      /**
+       * CRITICAL TEST: Validates that path parameter names match codec parameter names
+       * to prevent runtime validation errors.
+       */
+      it('should have path parameter names matching codec parameter names', function () {
+        const pathParams = extractPathParams(PostAcceptShare.path);
+        const codecParams = getCodecParamNames(AcceptShareRequestParams);
+
+        pathParams.sort();
+        codecParams.sort();
+
+        assert.deepStrictEqual(
+          pathParams,
+          codecParams,
+          `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(
+            codecParams
+          )}. ` + `This will cause runtime validation errors! Path: ${PostAcceptShare.path}`
+        );
+      });
     });
 
     it('should handle empty strings for optional fields', function () {
diff --git a/modules/express/test/unit/typedRoutes/coinSignTx.ts b/modules/express/test/unit/typedRoutes/coinSignTx.ts
index b81faed62d..631228a145 100644
--- a/modules/express/test/unit/typedRoutes/coinSignTx.ts
+++ b/modules/express/test/unit/typedRoutes/coinSignTx.ts
@@ -13,6 +13,23 @@ import {
 } from '../../../src/typedRoutes/api/v2/coinSignTx';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('CoinSignTx codec tests', function () {
   describe('CoinSignTxParams', function () {
     it('should validate params with required coin', function () {
@@ -370,5 +387,24 @@ describe('CoinSignTx codec tests', function () {
       assert.ok(PostCoinSignTx.response[200]);
       assert.ok(PostCoinSignTx.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PostCoinSignTx.path);
+      const codecParams = getCodecParamNames(CoinSignTxParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PostCoinSignTx.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/consolidateUnspents.ts b/modules/express/test/unit/typedRoutes/consolidateUnspents.ts
index a1e5bbe9c2..9515a9f791 100644
--- a/modules/express/test/unit/typedRoutes/consolidateUnspents.ts
+++ b/modules/express/test/unit/typedRoutes/consolidateUnspents.ts
@@ -8,6 +8,23 @@ import {
 } from '../../../src/typedRoutes/api/v1/consolidateUnspents';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('ConsolidateUnspents codec tests', function () {
   describe('ConsolidateUnspentsRequestParams', function () {
     it('should validate params with required id', function () {
@@ -657,5 +674,24 @@ describe('ConsolidateUnspents codec tests', function () {
       assert.ok(PutConsolidateUnspents.response[200]);
       assert.ok(PutConsolidateUnspents.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PutConsolidateUnspents.path);
+      const codecParams = getCodecParamNames(ConsolidateUnspentsRequestParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PutConsolidateUnspents.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/constructPendingApprovalTx.ts b/modules/express/test/unit/typedRoutes/constructPendingApprovalTx.ts
index 21a59dd8d9..76fe2e8691 100644
--- a/modules/express/test/unit/typedRoutes/constructPendingApprovalTx.ts
+++ b/modules/express/test/unit/typedRoutes/constructPendingApprovalTx.ts
@@ -8,6 +8,23 @@ import {
 } from '../../../src/typedRoutes/api/v1/constructPendingApprovalTx';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('ConstructPendingApprovalTx codec tests', function () {
   describe('ConstructPendingApprovalTxRequestParams', function () {
     it('should validate params with required id', function () {
@@ -301,5 +318,24 @@ describe('ConstructPendingApprovalTx codec tests', function () {
       assert.ok(PutConstructPendingApprovalTx.response[200]);
       assert.ok(PutConstructPendingApprovalTx.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PutConstructPendingApprovalTx.path);
+      const codecParams = getCodecParamNames(ConstructPendingApprovalTxRequestParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PutConstructPendingApprovalTx.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/fanoutUnspents.ts b/modules/express/test/unit/typedRoutes/fanoutUnspents.ts
index f1436f312f..95f3c28d85 100644
--- a/modules/express/test/unit/typedRoutes/fanoutUnspents.ts
+++ b/modules/express/test/unit/typedRoutes/fanoutUnspents.ts
@@ -8,6 +8,23 @@ import {
 } from '../../../src/typedRoutes/api/v1/fanoutUnspents';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('FanoutUnspents codec tests', function () {
   describe('FanoutUnspentsRequestParams', function () {
     it('should validate params with required id', function () {
@@ -390,5 +407,24 @@ describe('FanoutUnspents codec tests', function () {
       assert.ok(PutFanoutUnspents.response[200]);
       assert.ok(PutFanoutUnspents.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PutFanoutUnspents.path);
+      const codecParams = getCodecParamNames(FanoutUnspentsRequestParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PutFanoutUnspents.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/pendingApproval.ts b/modules/express/test/unit/typedRoutes/pendingApproval.ts
index 6d70e5defe..ba03066fea 100644
--- a/modules/express/test/unit/typedRoutes/pendingApproval.ts
+++ b/modules/express/test/unit/typedRoutes/pendingApproval.ts
@@ -6,9 +6,23 @@ import {
   PutPendingApproval,
 } from '../../../src/typedRoutes/api/v1/pendingApproval';
 import { assertDecode } from './common';
+
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
 /**
- * Helper function to test io-ts codec decoding
+ * Helper function to get codec parameter names from a params object
  */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
 
 describe('PendingApproval codec tests', function () {
   describe('pendingApprovalRequestParams', function () {
@@ -203,5 +217,24 @@ describe('PendingApproval codec tests', function () {
       assert.ok(PutPendingApproval.response[200]);
       assert.ok(PutPendingApproval.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PutPendingApproval.path);
+      const codecParams = getCodecParamNames(pendingApprovalRequestParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PutPendingApproval.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/signTransaction.ts b/modules/express/test/unit/typedRoutes/signTransaction.ts
index 634073c5d5..edb2df5304 100644
--- a/modules/express/test/unit/typedRoutes/signTransaction.ts
+++ b/modules/express/test/unit/typedRoutes/signTransaction.ts
@@ -7,6 +7,23 @@ import {
 } from '../../../src/typedRoutes/api/v1/signTransaction';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('SignTransaction codec tests', function () {
   describe('signTransactionRequestParams', function () {
     it('should validate valid params', function () {
@@ -334,5 +351,24 @@ describe('SignTransaction codec tests', function () {
       assert.ok(PostSignTransaction.response[200]);
       assert.ok(PostSignTransaction.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PostSignTransaction.path);
+      const codecParams = getCodecParamNames(signTransactionRequestParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PostSignTransaction.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/walletRecoverToken.ts b/modules/express/test/unit/typedRoutes/walletRecoverToken.ts
index 30de0a0ab9..6b04d9a2d5 100644
--- a/modules/express/test/unit/typedRoutes/walletRecoverToken.ts
+++ b/modules/express/test/unit/typedRoutes/walletRecoverToken.ts
@@ -8,6 +8,23 @@ import {
 } from '../../../src/typedRoutes/api/v2/walletRecoverToken';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('WalletRecoverToken codec tests', function () {
   describe('RecoverTokenParams', function () {
     it('should validate params with required coin and id', function () {
@@ -580,5 +597,24 @@ describe('WalletRecoverToken codec tests', function () {
       assert.ok(PostWalletRecoverToken.response[200]);
       assert.ok(PostWalletRecoverToken.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PostWalletRecoverToken.path);
+      const codecParams = getCodecParamNames(RecoverTokenParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PostWalletRecoverToken.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/walletSignTx.ts b/modules/express/test/unit/typedRoutes/walletSignTx.ts
index cf29792e6d..8f2e76ca51 100644
--- a/modules/express/test/unit/typedRoutes/walletSignTx.ts
+++ b/modules/express/test/unit/typedRoutes/walletSignTx.ts
@@ -13,6 +13,23 @@ import {
 } from '../../../src/typedRoutes/api/v2/walletSignTx';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('WalletSignTx codec tests', function () {
   describe('WalletSignTxParams', function () {
     it('should validate params with required coin and id', function () {
@@ -679,5 +696,24 @@ describe('WalletSignTx codec tests', function () {
       assert.ok(PostWalletSignTx.response[200]);
       assert.ok(PostWalletSignTx.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PostWalletSignTx.path);
+      const codecParams = getCodecParamNames(WalletSignTxParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PostWalletSignTx.path}`
+      );
+    });
   });
 });
diff --git a/modules/express/test/unit/typedRoutes/walletTxSignTSS.ts b/modules/express/test/unit/typedRoutes/walletTxSignTSS.ts
index 604a6ba4f9..d8f22d75b9 100644
--- a/modules/express/test/unit/typedRoutes/walletTxSignTSS.ts
+++ b/modules/express/test/unit/typedRoutes/walletTxSignTSS.ts
@@ -13,6 +13,23 @@ import {
 } from '../../../src/typedRoutes/api/v2/walletTxSignTSS';
 import { assertDecode } from './common';
 
+/**
+ * Helper function to extract path parameter names from a route path
+ * Supports both Express-style (:param) and OpenAPI-style ({param}) notation
+ */
+function extractPathParams(path: string): string[] {
+  const colonParams = path.match(/:(\w+)/g)?.map((p) => p.slice(1)) || [];
+  const braceParams = path.match(/\{(\w+)\}/g)?.map((p) => p.slice(1, -1)) || [];
+  return [...colonParams, ...braceParams];
+}
+
+/**
+ * Helper function to get codec parameter names from a params object
+ */
+function getCodecParamNames(paramsCodec: Record<string, any>): string[] {
+  return Object.keys(paramsCodec);
+}
+
 describe('WalletTxSignTSS codec tests', function () {
   describe('WalletTxSignTSSParams', function () {
     it('should validate params with required coin and id', function () {
@@ -690,5 +707,24 @@ describe('WalletTxSignTSS codec tests', function () {
       assert.ok(PostWalletTxSignTSS.response[200]);
       assert.ok(PostWalletTxSignTSS.response[400]);
     });
+
+    /**
+     * CRITICAL TEST: Validates that path parameter names match codec parameter names
+     * to prevent runtime validation errors.
+     */
+    it('should have path parameter names matching codec parameter names', function () {
+      const pathParams = extractPathParams(PostWalletTxSignTSS.path);
+      const codecParams = getCodecParamNames(WalletTxSignTSSParams);
+
+      pathParams.sort();
+      codecParams.sort();
+
+      assert.deepStrictEqual(
+        pathParams,
+        codecParams,
+        `Path parameters ${JSON.stringify(pathParams)} do not match codec parameters ${JSON.stringify(codecParams)}. ` +
+          `This will cause runtime validation errors! Path: ${PostWalletTxSignTSS.path}`
+      );
+    });
   });
 });