diff --git a/crates/binstalk-registry/Cargo.toml b/crates/binstalk-registry/Cargo.toml
index c0fc653e..91f0c4ab 100644
--- a/crates/binstalk-registry/Cargo.toml
+++ b/crates/binstalk-registry/Cargo.toml
@@ -35,9 +35,12 @@ url = "2.3.1"
 [dev-dependencies]
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 toml_edit = { version = "0.19.11", features = ["serde"] }
+binstalk-downloader = { version = "0.7.0", path = "../binstalk-downloader", default-features = false, features = ["rustls"] }
 
 [features]
 git = ["simple-git"]
 
+crates_io_api = []
+
 [package.metadata.docs.rs]
 rustdoc-args = ["--cfg", "docsrs"]
diff --git a/crates/binstalk-registry/src/crates_io_registry.rs b/crates/binstalk-registry/src/crates_io_registry.rs
index ce8bbdcd..179b91fd 100644
--- a/crates/binstalk-registry/src/crates_io_registry.rs
+++ b/crates/binstalk-registry/src/crates_io_registry.rs
@@ -105,7 +105,7 @@ async fn fetch_crate_cratesio_version_matched(
 
 /// Find the crate by name, get its latest stable version matches `version_req`,
 /// retrieve its Cargo.toml and infer all its bins.
-pub async fn fetch_crate_cratesio(
+pub async fn fetch_crate_cratesio_api(
     client: Client,
     name: &str,
     version_req: &VersionReq,
diff --git a/crates/binstalk-registry/src/lib.rs b/crates/binstalk-registry/src/lib.rs
index f3cebc85..30923f6a 100644
--- a/crates/binstalk-registry/src/lib.rs
+++ b/crates/binstalk-registry/src/lib.rs
@@ -33,8 +33,10 @@ mod git_registry;
 #[cfg(feature = "git")]
 pub use git_registry::GitRegistry;
 
+#[cfg(any(feature = "crates_io_api", test))]
 mod crates_io_registry;
-pub use crates_io_registry::fetch_crate_cratesio;
+#[cfg(any(feature = "crates_io_api", test))]
+pub use crates_io_registry::fetch_crate_cratesio_api;
 
 mod sparse_registry;
 pub use sparse_registry::SparseRegistry;
@@ -100,18 +102,21 @@ impl From<CargoTomlError> for RegistryError {
     }
 }
 
-#[derive(Clone, Debug, Default)]
+#[derive(Clone, Debug)]
 #[non_exhaustive]
 pub enum Registry {
-    #[default]
-    CratesIo,
-
     Sparse(Arc<SparseRegistry>),
 
     #[cfg(feature = "git")]
     Git(GitRegistry),
 }
 
+impl Default for Registry {
+    fn default() -> Self {
+        Self::crates_io_sparse_registry()
+    }
+}
+
 #[derive(Debug, ThisError)]
 #[error("Invalid registry `{src}`, {inner}")]
 pub struct InvalidRegistryError {
@@ -138,6 +143,13 @@ enum InvalidRegistryErrorInner {
 }
 
 impl Registry {
+    /// Return a crates.io sparse registry
+    pub fn crates_io_sparse_registry() -> Self {
+        Self::Sparse(Arc::new(SparseRegistry::new(
+            Url::parse("https://index.crates.io/").unwrap(),
+        )))
+    }
+
     fn from_str_inner(s: &str) -> Result<Self, InvalidRegistryErrorInner> {
         if let Some(s) = s.strip_prefix("sparse+") {
             let url = Url::parse(s)?;
@@ -170,7 +182,6 @@ impl Registry {
         version_req: &VersionReq,
     ) -> Result<Manifest<Meta>, RegistryError> {
         match self {
-            Self::CratesIo => fetch_crate_cratesio(client, crate_name, version_req).await,
             Self::Sparse(sparse_registry) => {
                 sparse_registry
                     .fetch_crate_matched(client, crate_name, version_req)
@@ -222,7 +233,7 @@ mod test {
     async fn test_crates_io_sparse_registry() {
         let client = create_client().await;
 
-        let sparse_registry: Registry = "sparse+https://index.crates.io/".parse().unwrap();
+        let sparse_registry: Registry = Registry::crates_io_sparse_registry();
         assert!(
             matches!(sparse_registry, Registry::Sparse(_)),
             "{:?}",
@@ -236,8 +247,7 @@ mod test {
             .await
             .unwrap();
 
-        let manifest_from_cratesio_api = Registry::default()
-            .fetch_crate_matched(client, crate_name, version_req)
+        let manifest_from_cratesio_api = fetch_crate_cratesio_api(client, crate_name, version_req)
             .await
             .unwrap();