diff --git a/.gitignore b/.gitignore
index 090a1f0..33ed394 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .idea
 .DS_Store
+openapi.yaml
diff --git a/buf.gen.yaml b/buf.gen.yaml
new file mode 100644
index 0000000..a1c3482
--- /dev/null
+++ b/buf.gen.yaml
@@ -0,0 +1,7 @@
+# yaml-language-server: $schema=https://www.schemastore.org/buf.gen.json
+version: v2
+plugins:
+  # protoc-gen-connect-openapi must be installed locally
+  # See https://github.com/sudorandom/protoc-gen-connect-openapi
+  - local: protoc-gen-connect-openapi
+    out: openapi
diff --git a/buf.yaml b/buf.yaml
index 1867327..9a992ec 100644
--- a/buf.yaml
+++ b/buf.yaml
@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://www.schemastore.org/buf.json
 version: v2
 modules:
   - path: apis
diff --git a/generate_openapi.py b/generate_openapi.py
new file mode 100644
index 0000000..de47a08
--- /dev/null
+++ b/generate_openapi.py
@@ -0,0 +1,89 @@
+# /// script
+# dependencies = [
+#     "ruamel-yaml",
+# ]
+# ///
+
+import os
+import sys
+from ruamel.yaml import YAML
+from pathlib import Path
+from typing import Dict, Any
+import tempfile
+
+override = {
+    "info": {
+        "title": "Tilebox API",
+        "version": "1.0.0",
+    },
+    "servers": [
+        {
+            "url": "https://api.tilebox.com",
+        },
+    ],
+    "components": {
+        "schemas": {
+            "connect-protocol-version": {
+                "default": 1,
+            },
+        },
+        "securitySchemes": {
+            "bearerAuth": {
+                "type": "http",
+                "scheme": "bearer",
+            },
+        },
+    },
+    "security": [
+        {
+            "bearerAuth": [],
+        },
+    ],
+}
+
+
+def recursive_merge(base: Dict[Any, Any], update: Dict[Any, Any]):
+    for key, value in update.items():
+        if key in base and isinstance(base[key], dict) and isinstance(value, dict):
+            # Both values are dictionaries, merge recursively
+            recursive_merge(base[key], value)
+        else:
+            # Either key doesn't exist in base, or one of the values is not a dict
+            base[key] = value
+
+
+def main() -> None:
+    output = "openapi.yaml"
+    if len(sys.argv) == 2:
+        output = sys.argv[1]
+    elif len(sys.argv) != 1:
+        print("Usage: uv run generate-openapi.py <output>")
+        sys.exit(1)
+
+    tmpdir = tempfile.TemporaryDirectory()
+    print(f"Generating protobuf to {tmpdir.name}")
+    os.system(f"buf generate -o {tmpdir.name}")
+
+    yaml = YAML(typ="safe")
+    yaml.default_flow_style = False
+
+    merged_yaml = {}
+
+    for path in Path(tmpdir.name).glob("**/*.yaml"):
+        print(f"Merging {path}")
+
+        with open(path) as f:
+            data = yaml.load(f.read())
+            recursive_merge(merged_yaml, data)
+
+    recursive_merge(merged_yaml, override)
+
+    tmpdir.cleanup()
+
+    print(f"Writing merged output to {output}")
+    with open(output, "w") as out:
+        yaml.dump(merged_yaml, out)
+
+
+if __name__ == "__main__":
+    main()