diff --git a/Cargo.lock b/Cargo.lock
index a5a997bf..b19b6304 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1298,6 +1298,13 @@ dependencies = [
 name = "mdbook-core"
 version = "0.5.0-alpha.1"
 
+[[package]]
+name = "mdbook-preprocessor"
+version = "0.5.0-alpha.1"
+dependencies = [
+ "mdbook-core",
+]
+
 [[package]]
 name = "mdbook-remove-emphasis"
 version = "0.1.0"
@@ -1308,6 +1315,13 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "mdbook-renderer"
+version = "0.5.0-alpha.1"
+dependencies = [
+ "mdbook-core",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.5"
diff --git a/crates/mdbook-preprocessor/Cargo.toml b/crates/mdbook-preprocessor/Cargo.toml
new file mode 100644
index 00000000..c39ff408
--- /dev/null
+++ b/crates/mdbook-preprocessor/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "mdbook-preprocessor"
+version = "0.5.0-alpha.1"
+description = "Library to assist implementing an mdBook preprocessor"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+
+[dependencies]
+mdbook-core.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/mdbook-preprocessor/src/lib.rs b/crates/mdbook-preprocessor/src/lib.rs
new file mode 100644
index 00000000..e4d97bb4
--- /dev/null
+++ b/crates/mdbook-preprocessor/src/lib.rs
@@ -0,0 +1,3 @@
+//! Library to assist implementing an mdbook preprocessor.
+
+pub use mdbook_core::MDBOOK_VERSION;
diff --git a/crates/mdbook-renderer/Cargo.toml b/crates/mdbook-renderer/Cargo.toml
new file mode 100644
index 00000000..2ec83e47
--- /dev/null
+++ b/crates/mdbook-renderer/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "mdbook-renderer"
+version = "0.5.0-alpha.1"
+description = "Library to assist implementing an mdBook renderer"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+
+[dependencies]
+mdbook-core.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/mdbook-renderer/src/lib.rs b/crates/mdbook-renderer/src/lib.rs
new file mode 100644
index 00000000..8b09630d
--- /dev/null
+++ b/crates/mdbook-renderer/src/lib.rs
@@ -0,0 +1,3 @@
+//! Library to assist implementing an mdbook renderer.
+
+pub use mdbook_core::MDBOOK_VERSION;