diff --git a/src/main.rs b/src/main.rs
index c1001bb..447f329 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -15,10 +15,13 @@ use types::Types;
 mod api;
 mod generator;
 mod postprocessing;
+mod preprocess_spec;
 mod template;
 mod types;
 mod util;
 
+use crate::{preprocess_spec::add_ee_prefix, util::prefix_op_id};
+
 use self::{api::Api, generator::generate};
 
 #[derive(Parser)]
@@ -40,6 +43,10 @@ struct CliArgs {
     #[arg(global = true, long = "include-op-id")]
     specified_operations: Vec<String>,
 
+    /// Add a `ee_` prefix to operation names and model names
+    #[arg(global = true, long = "add-ee-prefix", action = clap::ArgAction::SetTrue, default_value_t = false)]
+    add_ee_prefix: bool,
+
     #[command(subcommand)]
     command: Command,
 }
@@ -94,11 +101,16 @@ fn main() -> anyhow::Result<()> {
         Command::Debug { input_file } => input_file,
     };
 
-    let excluded_operations = BTreeSet::from_iter(args.excluded_operations);
-    let specified_operations = BTreeSet::from_iter(args.specified_operations);
+    let excluded_operations =
+        add_prefix_to_cli_op_ids(args.excluded_operations, args.add_ee_prefix);
+    let specified_operations =
+        add_prefix_to_cli_op_ids(args.specified_operations, args.add_ee_prefix);
 
     let spec = fs::read_to_string(input_file)?;
-    let spec: OpenApi = serde_json::from_str(&spec).context("failed to parse OpenAPI spec")?;
+    let mut spec: OpenApi = serde_json::from_str(&spec).context("failed to parse OpenAPI spec")?;
+    if args.add_ee_prefix {
+        add_ee_prefix(&mut spec);
+    }
 
     let webhooks = get_webhooks(&spec);
     let mut components = spec.components.unwrap_or_default();
@@ -197,3 +209,11 @@ fn get_webhooks(spec: &OpenApi) -> Vec<String> {
     }
     referenced_components.into_iter().collect::<Vec<String>>()
 }
+
+fn add_prefix_to_cli_op_ids(op_ids: Vec<String>, add_ee_prefix: bool) -> BTreeSet<String> {
+    if add_ee_prefix {
+        op_ids.iter().map(|op_id| prefix_op_id(op_id)).collect()
+    } else {
+        op_ids.into_iter().collect()
+    }
+}
diff --git a/src/preprocess_spec.rs b/src/preprocess_spec.rs
new file mode 100644
index 0000000..49d6948
--- /dev/null
+++ b/src/preprocess_spec.rs
@@ -0,0 +1,151 @@
+use std::mem;
+
+use aide::openapi::{Components, OpenApi, Operation, ParameterSchemaOrContent, ReferenceOr};
+use indexmap::IndexMap;
+use schemars::schema::{Schema, SingleOrVec};
+
+use crate::util::prefix_op_id;
+
+/// Add `ee_` prefix to all schema and operation names
+pub fn add_ee_prefix(spec: &mut OpenApi) {
+    spec.components.as_mut().map(add_prefix_to_components);
+
+    if let Some(paths) = spec.paths.as_mut() {
+        for p in paths.paths.as_mut_slice() {
+            let path = p.1.as_item_mut().unwrap();
+            path.post.as_mut().map(add_prefix_to_op);
+            path.get.as_mut().map(add_prefix_to_op);
+            path.put.as_mut().map(add_prefix_to_op);
+            path.patch.as_mut().map(add_prefix_to_op);
+            path.head.as_mut().map(add_prefix_to_op);
+            path.options.as_mut().map(add_prefix_to_op);
+            path.trace.as_mut().map(add_prefix_to_op);
+        }
+    }
+}
+
+fn add_prefix_to_components(components: &mut Components) {
+    rename_keys(&mut components.schemas, |s| prefix_str(s));
+
+    for v in components.schemas.values_mut() {
+        add_prefix_to_schema(&mut v.json_schema);
+    }
+}
+
+fn add_prefix_to_schema(json_schema: &mut Schema) {
+    match json_schema {
+        Schema::Bool(_) => (),
+        Schema::Object(schema_object) => add_prefix_to_schema_obj(schema_object),
+    }
+}
+fn add_prefix_to_schema_obj(schema_object: &mut schemars::schema::SchemaObject) {
+    if let Some(r) = schema_object.reference.as_mut() {
+        prefix_ref_in_place(r)
+    }
+
+    if let Some(obj) = schema_object.object.as_mut() {
+        for v in obj.properties.values_mut() {
+            add_prefix_to_schema(v);
+        }
+    }
+
+    if let Some(array) = schema_object.array.as_mut() {
+        if let Some(items) = array.items.as_mut() {
+            match items {
+                SingleOrVec::Single(item) => {
+                    add_prefix_to_schema(item);
+                }
+                SingleOrVec::Vec(items) => {
+                    let _ = items.iter_mut().map(add_prefix_to_schema);
+                }
+            }
+        }
+    }
+}
+
+fn add_prefix_to_op(op: &mut Operation) {
+    if let Some(op_id) = op.operation_id.as_mut() {
+        let prefixed_op_id = prefix_op_id(op_id);
+        *op_id = prefixed_op_id;
+    }
+
+    if let Some(body) = op.request_body.as_mut() {
+        match body {
+            ReferenceOr::Reference { reference, .. } => prefix_ref_in_place(reference),
+            ReferenceOr::Item(body) => {
+                for v in body.content.values_mut() {
+                    if let Some(v) = v.schema.as_mut() {
+                        add_prefix_to_schema(&mut v.json_schema)
+                    }
+                }
+            }
+        }
+    }
+
+    if let Some(r) = op.responses.as_mut() {
+        for res in r.responses.values_mut() {
+            match res {
+                ReferenceOr::Reference { reference, .. } => prefix_ref_in_place(reference),
+                ReferenceOr::Item(body) => {
+                    for v in body.content.values_mut() {
+                        if let Some(v) = v.schema.as_mut() {
+                            add_prefix_to_schema(&mut v.json_schema)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    for param in op.parameters.iter_mut() {
+        match param {
+            ReferenceOr::Reference { reference, .. } => prefix_ref_in_place(reference),
+            ReferenceOr::Item(item) => {
+                let param_data = item.parameter_data_mut();
+                match &mut param_data.format {
+                    ParameterSchemaOrContent::Schema(schema_object) => {
+                        add_prefix_to_schema(&mut schema_object.json_schema)
+                    }
+                    ParameterSchemaOrContent::Content(index_map) => {
+                        for v in index_map.values_mut() {
+                            if let Some(v) = v.schema.as_mut() {
+                                add_prefix_to_schema(&mut v.json_schema)
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+fn rename_keys<K, V, F>(map: &mut IndexMap<K, V>, mut f: F)
+where
+    K: std::hash::Hash + Eq,
+    F: FnMut(&K) -> K,
+{
+    let mut new_map = IndexMap::with_capacity(map.len());
+
+    for (old_key, value) in map.drain(..) {
+        let new_key = f(&old_key);
+        new_map.insert(new_key, value);
+    }
+
+    *map = new_map;
+}
+
+fn prefix_str<T: AsRef<str>>(v: T) -> String {
+    format!("Ee{}", v.as_ref())
+}
+
+// apply ee prefix to $ref strings
+fn prefix_ref<T: AsRef<str>>(v: T) -> String {
+    v.as_ref()
+        .replace("#/components/schemas/", "#/components/schemas/Ee")
+}
+
+// apply ee prefix *in-place* to $ref strings
+fn prefix_ref_in_place(v: &mut String) {
+    let r = mem::take(v);
+    *v = prefix_ref(r);
+}
diff --git a/src/util.rs b/src/util.rs
index 728bcf2..a772619 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,5 +1,6 @@
 use std::collections::BTreeMap;
 
+use itertools::Itertools as _;
 use serde::ser::{Serialize, SerializeSeq as _, Serializer};
 
 pub(crate) fn get_schema_name(maybe_ref: Option<&str>) -> Option<String> {
@@ -28,3 +29,18 @@ where
     }
     seq.end()
 }
+
+pub(crate) fn prefix_op_id(op_id: &str) -> String {
+    let split = op_id.split(".");
+
+    let prefixed_op_id = split
+        .map(|p| {
+            if p != "v1" {
+                format!("ee-{p}")
+            } else {
+                p.to_string()
+            }
+        })
+        .join(".");
+    prefixed_op_id
+}