diff --git a/routes/(apps)/admin/api/enseignements.ts b/routes/(apps)/admin/api/enseignements.ts
new file mode 100644
index 0000000..0f6c09d
--- /dev/null
+++ b/routes/(apps)/admin/api/enseignements.ts
@@ -0,0 +1,70 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { enseignements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+const NOT_FOUND = new Response(
+  JSON.stringify({ error: "Ressource introuvable" }),
+  { status: 404, headers: { "content-type": "application/json" } },
+);
+
+const FORBIDDEN = new Response(null, { status: 403 });
+
+const CONFLICT = new Response(
+  JSON.stringify({ error: "Cet enseignement existe déjà." }),
+  { status: 409, headers: { "content-type": "application/json" } },
+);
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #29 POST /enseignements
+  async POST(
+    request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const body: {
+      idProf: string;
+      idModule: string;
+      idPromo: string;
+    } = await request.json();
+
+    if (!body.idProf || !body.idModule || !body.idPromo) {
+      return new Response(null, { status: 400 });
+    }
+
+    // Check if enseignement already exists
+    const existing = await db
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, body.idProf),
+          eq(enseignements.idModule, body.idModule),
+          eq(enseignements.idPromo, body.idPromo),
+        ),
+      )
+      .then((rows) => rows[0] ?? null);
+
+    if (existing) {
+      return CONFLICT;
+    }
+
+    const [created] = await db
+      .insert(enseignements)
+      .values({
+        idProf: body.idProf,
+        idModule: body.idModule,
+        idPromo: body.idPromo,
+      })
+      .returning();
+
+    return new Response(JSON.stringify(created), {
+      status: 201,
+      headers: { "content-type": "application/json" },
+    });
+  },
+};
diff --git a/routes/(apps)/admin/api/enseignements/[idProf]/[idModule]/[idPromo].ts b/routes/(apps)/admin/api/enseignements/[idProf]/[idModule]/[idPromo].ts
new file mode 100644
index 0000000..30dbd8a
--- /dev/null
+++ b/routes/(apps)/admin/api/enseignements/[idProf]/[idModule]/[idPromo].ts
@@ -0,0 +1,75 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { enseignements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+const NOT_FOUND = new Response(
+  JSON.stringify({ error: "Ressource introuvable" }),
+  { status: 404, headers: { "content-type": "application/json" } },
+);
+
+const FORBIDDEN = new Response(null, { status: 403 });
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #30 GET /enseignements/{idProf}/{idModule}/{idPromo}
+  async GET(
+    _request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const idProf = context.params.idProf;
+    const idModule = context.params.idModule;
+    const idPromo = context.params.idPromo;
+
+    const enseignement = await db
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, idProf),
+          eq(enseignements.idModule, idModule),
+          eq(enseignements.idPromo, idPromo),
+        ),
+      )
+      .then((rows) => rows[0] ?? null);
+
+    if (!enseignement) return NOT_FOUND;
+
+    return new Response(JSON.stringify(enseignement), {
+      headers: { "content-type": "application/json" },
+    });
+  },
+
+  // #31 DELETE /enseignements/{idProf}/{idModule}/{idPromo}
+  async DELETE(
+    _request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const idProf = context.params.idProf;
+    const idModule = context.params.idModule;
+    const idPromo = context.params.idPromo;
+
+    const [deleted] = await db
+      .delete(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, idProf),
+          eq(enseignements.idModule, idModule),
+          eq(enseignements.idPromo, idPromo),
+        ),
+      )
+      .returning();
+
+    if (!deleted) return NOT_FOUND;
+
+    return new Response(null, { status: 204 });
+  },
+};
diff --git a/routes/(apps)/notes/api/ajustements.ts b/routes/(apps)/notes/api/ajustements.ts
new file mode 100644
index 0000000..6239fb2
--- /dev/null
+++ b/routes/(apps)/notes/api/ajustements.ts
@@ -0,0 +1,83 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { ajustements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { eq } from "npm:drizzle-orm@0.45.2";
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #48 GET /ajustements
+  async GET(request) {
+    try {
+      const url = new URL(request.url);
+      const numEtudParam = url.searchParams.get("numEtud");
+      const idUEParam = url.searchParams.get("idUE");
+
+      let query = db.select().from(ajustements).$dynamic();
+
+      if (numEtudParam) {
+        const numEtud = parseInt(numEtudParam);
+        if (isNaN(numEtud)) {
+          return new Response("Paramètre numEtud invalide", { status: 400 });
+        }
+        query = query.where(eq(ajustements.numEtud, numEtud));
+      }
+
+      if (idUEParam) {
+        const idUE = parseInt(idUEParam);
+        if (isNaN(idUE)) {
+          return new Response("Paramètre idUE invalide", { status: 400 });
+        }
+        query = query.where(eq(ajustements.idUE, idUE));
+      }
+
+      const result = await query;
+
+      return new Response(JSON.stringify(result), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      });
+    } catch (error) {
+      console.error("Error fetching ajustements:", error);
+      return new Response("Failed to fetch data", { status: 500 });
+    }
+  },
+
+  // #49 POST /ajustements
+  async POST(
+    request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return new Response(null, { status: 403 });
+    }
+
+    try {
+      const body: { numEtud: number; idUE: number; valeur: number } =
+        await request.json();
+
+      if (!body.numEtud || !body.idUE || body.valeur === undefined) {
+        return new Response(
+          JSON.stringify({ error: "Champs requis: numEtud, idUE, valeur" }),
+          { status: 400, headers: { "content-type": "application/json" } },
+        );
+      }
+
+      const [created] = await db
+        .insert(ajustements)
+        .values({
+          numEtud: body.numEtud,
+          idUE: body.idUE,
+          valeur: body.valeur,
+        })
+        .returning();
+
+      return new Response(JSON.stringify(created), {
+        status: 201,
+        headers: { "content-type": "application/json" },
+      });
+    } catch (error) {
+      console.error("Error creating ajustement:", error);
+      return new Response("Failed to create ajustement", { status: 500 });
+    }
+  },
+};
diff --git a/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts b/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts
new file mode 100644
index 0000000..ae7232c
--- /dev/null
+++ b/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts
@@ -0,0 +1,43 @@
+import { FreshContext, Handlers } from "$fresh/server.ts";
+import { db } from "$root/databases/db.ts";
+import { ajustements } from "$root/databases/schema.ts";
+import { AuthenticatedState } from "$root/defaults/interfaces.ts";
+import { eq } from "npm:drizzle-orm@0.45.2";
+
+const NOT_FOUND = new Response(
+  JSON.stringify({ error: "Ajustement introuvable" }),
+  { status: 404, headers: { "content-type": "application/json" } },
+);
+
+const FORBIDDEN = new Response(null, { status: 403 });
+
+export const handler: Handlers<null, AuthenticatedState> = {
+  // #50 GET /ajustements/{numEtud}/{idUE}
+  async GET(
+    _request: Request,
+    context: FreshContext<AuthenticatedState>,
+  ): Promise<Response> {
+    if (context.state.session.eduPersonPrimaryAffiliation !== "employee") {
+      return FORBIDDEN;
+    }
+
+    const numEtud = Number(context.params.numEtud);
+    const idUE = Number(context.params.idUE);
+
+    if (isNaN(numEtud) || isNaN(idUE)) {
+      return new Response("Paramètres invalides", { status: 400 });
+    }
+
+    const ajustement = await db
+      .select()
+      .from(ajustements)
+      .where(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE))
+      .then((rows) => rows[0] ?? null);
+
+    if (!ajustement) return NOT_FOUND;
+
+    return new Response(JSON.stringify(ajustement), {
+      headers: { "content-type": "application/json" },
+    });
+  },
+};
diff --git a/routes/(apps)/notes/api/notes.ts b/routes/(apps)/notes/api/notes.ts
index 385caaa..0dcdf39 100644
--- a/routes/(apps)/notes/api/notes.ts
+++ b/routes/(apps)/notes/api/notes.ts
@@ -36,4 +36,26 @@ export const handler: Handlers = {
       return new Response("Failed to fetch data", { status: 500 });
     }
   },
+
+  // #43 POST /notes
+  async POST(request) {
+    try {
+      const body = await request.json();
+      const { note, numEtud, idModule } = body;
+
+      if (note === undefined || !numEtud || !idModule) {
+        return new Response("Champs 'note', 'numEtud' et 'idModule' requis", { status: 400 });
+      }
+
+      const result = await db.insert(notes).values({ note, numEtud, idModule }).returning();
+
+      return new Response(JSON.stringify(result[0]), {
+        status: 201,
+        headers: { "Content-Type": "application/json" },
+      });
+    } catch (error) {
+      console.error("Error creating note:", error);
+      return new Response("Failed to create note", { status: 500 });
+    }
+  },
 };
\ No newline at end of file
diff --git a/routes/(apps)/notes/api/ue-modules.ts b/routes/(apps)/notes/api/ue-modules.ts
new file mode 100644
index 0000000..ba56b66
--- /dev/null
+++ b/routes/(apps)/notes/api/ue-modules.ts
@@ -0,0 +1,58 @@
+import { Handlers } from "$fresh/server.ts";
+import { db } from "../../../../databases/db.ts";
+import { ueModules } from "../../../../databases/schema.ts";
+import { and, eq } from "npm:drizzle-orm";
+
+export const handler: Handlers = {
+  // #37 GET /ue-modules  
+  async GET(request) {
+    try {
+      const url = new URL(request.url);
+      const idPromo = url.searchParams.get("idPromo");
+      const idUEParam = url.searchParams.get("idUE");
+
+      const idUE = idUEParam ? parseInt(idUEParam) : null;
+
+      if (idUEParam && isNaN(idUE!)) {
+        return new Response("Paramètre idUE invalide", { status: 400 });
+      }
+
+      const result = await db.select().from(ueModules).where(
+        and(
+          idPromo ? eq(ueModules.idPromo, idPromo) : undefined,
+          idUE ? eq(ueModules.idUE, idUE) : undefined,
+        ),
+      );
+
+      return new Response(JSON.stringify(result), {
+        status: 200,
+        headers: { "Content-Type": "application/json" },
+      });
+    } catch (error) {
+      console.error("Error fetching UE-modules:", error);
+      return new Response("Failed to fetch data", { status: 500 });
+    }
+  },
+  
+  // #38 POST /ue-modules
+  async POST(request) {
+    try {
+      const body = await request.json();
+      const { idModule, idUE, idPromo, coeff } = body;
+
+      if (!idModule || !idUE || !idPromo || coeff === undefined) {
+        return new Response("Champs 'idModule', 'idUE', 'idPromo' et 'coeff' requis", { status: 400 });
+      }
+
+      const result = await db.insert(ueModules).values({ idModule, idUE, idPromo, coeff }).returning();
+
+      return new Response(JSON.stringify(result[0]), {
+        status: 201,
+        headers: { "Content-Type": "application/json" },
+      });
+    } catch (error) {
+      console.error("Error creating UE-module:", error);
+      return new Response("Failed to create UE-module", { status: 500 });
+    }
+  },
+};
\ No newline at end of file
diff --git a/routes/(apps)/notes/api/ues/[idUE].ts b/routes/(apps)/notes/api/ues/[idUE].ts
index eb7fdb5..f1722eb 100644
--- a/routes/(apps)/notes/api/ues/[idUE].ts
+++ b/routes/(apps)/notes/api/ues/[idUE].ts
@@ -5,6 +5,7 @@ import { eq } from "npm:drizzle-orm";
 
 export const handler: Handlers = {
   // #34 GET /ues/:idUE  
+  // # 34 GET /ues/:idUE  
   async GET(_request, context) {
     try {
       const idUE = parseInt(context.params.idUE);