diff --git a/backend/autometabuilder/web/routes/prompt.py b/backend/autometabuilder/web/routes/prompt.py
new file mode 100644
index 0000000..5a4b2c5
--- /dev/null
+++ b/backend/autometabuilder/web/routes/prompt.py
@@ -0,0 +1,30 @@
+"""Prompt and workflow editing routes."""
+from __future__ import annotations
+
+from flask import Blueprint, request
+
+from ..data import build_prompt_yaml, write_prompt, write_workflow
+
+prompt_bp = Blueprint("prompt", __name__)
+
+
+@prompt_bp.route("/api/prompt", methods=["POST"])
+def api_prompt() -> tuple[dict[str, str], int]:
+    payload = request.get_json(force=True)
+    content = payload.get("content")
+    system = payload.get("system_content")
+    user = payload.get("user_content")
+    model = payload.get("model")
+    mode = payload.get("prompt_mode", "builder")
+    if mode == "raw" and content is not None:
+        write_prompt(content)
+    else:
+        write_prompt(build_prompt_yaml(system, user, model))
+    return {"status": "ok"}, 200
+
+
+@prompt_bp.route("/api/workflow", methods=["POST"])
+def api_workflow() -> tuple[dict[str, str], int]:
+    payload = request.get_json(force=True)
+    write_workflow(payload.get("content", ""))
+    return {"status": "saved"}, 200
diff --git a/backend/autometabuilder/web/routes/settings.py b/backend/autometabuilder/web/routes/settings.py
new file mode 100644
index 0000000..a40f14e
--- /dev/null
+++ b/backend/autometabuilder/web/routes/settings.py
@@ -0,0 +1,16 @@
+"""Settings persistence route."""
+from __future__ import annotations
+
+from flask import Blueprint, request
+
+from ..data import persist_env_vars
+
+settings_bp = Blueprint("settings", __name__)
+
+
+@settings_bp.route("/api/settings", methods=["POST"])
+def api_settings() -> tuple[dict[str, str], int]:
+    payload = request.get_json(force=True) or {}
+    entries = payload.get("env", {}) or {}
+    persist_env_vars(entries)
+    return {"status": "ok"}, 200