diff --git a/libraries/request.ts b/libraries/request.ts
index d9ff296..097d05f 100644
--- a/libraries/request.ts
+++ b/libraries/request.ts
@@ -1,10 +1,37 @@
-import z from "zod";
+import z, { ZodLiteral, ZodNumber, ZodObject, ZodOptional, ZodString, ZodUnion, ZodUnknown } from "zod";
 
-export const request = z.object({
+export const request: ZodObject<{
+  relay: ZodLiteral<"1.0">;
+  method: ZodString;
+  params: ZodOptional<ZodUnknown>;
+  id: ZodUnion<[ZodString, ZodNumber]>;
+}> = z.object({
   relay: z.literal("1.0"),
   method: z.string(),
-  params: z.unknown(),
+  params: z.unknown().optional(),
   id: z.string().or(z.number()),
 });
 
-export type RelayRequest = z.infer<typeof request>;
+export type RelayRequest = {
+  /**
+   * String specifying the version of the relay protocol. MUST be exactly "1.0".
+   */
+  relay: "1.0";
+
+  /**
+   * String containing the name of the method to be invoked.
+   */
+  method: string;
+
+  /**
+   * Structured value that holds the parameter values to be used during the
+   * invocation of the method.
+   */
+  params?: unknown;
+
+  /**
+   * An identifier established by the Client that MUST contain a String, or non
+   * fractional Number value.
+   */
+  id: string | number;
+};