diff --git a/crates/goose/src/providers/anthropic.rs b/crates/goose/src/providers/anthropic.rs
index 5f2976af4e05..45260c1e65aa 100644
--- a/crates/goose/src/providers/anthropic.rs
+++ b/crates/goose/src/providers/anthropic.rs
@@ -91,9 +91,20 @@ impl AnthropicProvider {
             key: api_key,
         };
 
-        let api_client = ApiClient::new(config.base_url, auth)?
+        let mut api_client = ApiClient::new(config.base_url, auth)?
             .with_header("anthropic-version", ANTHROPIC_API_VERSION)?;
 
+        // Add custom headers if present
+        if let Some(headers) = &config.headers {
+            let mut header_map = reqwest::header::HeaderMap::new();
+            for (key, value) in headers {
+                let header_name = reqwest::header::HeaderName::from_bytes(key.as_bytes())?;
+                let header_value = reqwest::header::HeaderValue::from_str(value)?;
+                header_map.insert(header_name, header_value);
+            }
+            api_client = api_client.with_headers(header_map)?;
+        }
+
         Ok(Self {
             api_client,
             model,