diff --git a/Cargo.lock b/Cargo.lock
index f9a290c96d30..9cf304af1b40 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1446,6 +1446,7 @@ version = "2.0.0"
 dependencies = [
  "cbindgen",
  "num-complex",
+ "pyo3",
  "qiskit-accelerate",
  "thiserror 2.0.11",
 ]
@@ -1478,6 +1479,7 @@ version = "2.0.0"
 dependencies = [
  "pyo3",
  "qiskit-accelerate",
+ "qiskit-cext",
  "qiskit-circuit",
  "qiskit-qasm2",
  "qiskit-qasm3",
diff --git a/crates/cext/Cargo.toml b/crates/cext/Cargo.toml
index 2ec08c26a49d..4a744b860614 100644
--- a/crates/cext/Cargo.toml
+++ b/crates/cext/Cargo.toml
@@ -17,6 +17,7 @@ workspace = true
 thiserror.workspace = true
 num-complex.workspace = true
 qiskit-accelerate.workspace = true
+pyo3.workspace = true
 
 [build-dependencies]
 cbindgen = "0.28"
diff --git a/crates/cext/cbindgen.toml b/crates/cext/cbindgen.toml
index 0c42ed598d86..ade38dede6ea 100644
--- a/crates/cext/cbindgen.toml
+++ b/crates/cext/cbindgen.toml
@@ -1,13 +1,13 @@
 include_version = true
-style = "type" 
+style = "type"
 sys_includes = ["complex.h"]
 after_includes = """
 // Complex number typedefs -- note these are memory aligned but
 // not calling convention compatible.
-typedef float complex QkComplex32; 
+typedef float complex QkComplex32;
 typedef double complex QkComplex64;
 
-// Always expose [cfg(feature = "cbinding")] -- workaround for 
+// Always expose [cfg(feature = "cbinding")] -- workaround for
 // https://github.com/mozilla/cbindgen/issues/995
 #define QISKIT_WITH_CBINDINGS
 """
@@ -24,7 +24,8 @@ prefix_with_name = true
 
 [export]
 prefix = "Qk"
-renaming_overrides_prefixing = false
+renaming_overrides_prefixing = true
 
 [export.rename]
-"CSparseTerm" = "SparseTerm"
+"CSparseTerm" = "QkSparseTerm"
+"PyObject" = "PyObject"
diff --git a/crates/cext/src/sparse_observable.rs b/crates/cext/src/sparse_observable.rs
index 6f5959b1c37c..3c3994015f82 100644
--- a/crates/cext/src/sparse_observable.rs
+++ b/crates/cext/src/sparse_observable.rs
@@ -14,7 +14,11 @@ use std::ffi::{c_char, CString};
 
 use crate::exit_codes::{CInputError, ExitCode};
 use num_complex::Complex64;
-use qiskit_accelerate::sparse_observable::{BitTerm, SparseObservable, SparseTermView};
+use pyo3::ffi::PyObject;
+use pyo3::{Py, Python};
+use qiskit_accelerate::sparse_observable::{
+    BitTerm, PySparseObservable, SparseObservable, SparseTermView,
+};
 
 /// @ingroup QkSparseTerm
 /// A term in a [SparseObservable].
@@ -847,3 +851,18 @@ pub extern "C" fn qk_bitterm_label(bit_term: BitTerm) -> u8 {
         .next()
         .expect("Label has exactly one character") as u8
 }
+
+/// @ingroup SparseObservable
+/// Convert to a Python-space [PySparseObservable].
+///
+/// @param obs The C-space [SparseObservable] pointer.
+///
+/// @return A Python object representing the [PySparseObservable].
+#[no_mangle]
+#[cfg(feature = "cbinding")]
+pub unsafe extern "C" fn qk_obs_to_python(obs: *const SparseObservable) -> *mut PyObject {
+    let obs = unsafe { const_ptr_as_ref(obs) };
+    let py_obs: PySparseObservable = obs.clone().into();
+
+    Python::with_gil(|py| Py::new(py, py_obs).expect("Shit hit the fan").into_ptr())
+}
diff --git a/crates/pyext/Cargo.toml b/crates/pyext/Cargo.toml
index 42962edb2fb9..b78692a89669 100644
--- a/crates/pyext/Cargo.toml
+++ b/crates/pyext/Cargo.toml
@@ -28,3 +28,4 @@ qiskit-accelerate.workspace = true
 qiskit-circuit.workspace = true
 qiskit-qasm2.workspace = true
 qiskit-qasm3.workspace = true
+qiskit-cext.workspace = true
diff --git a/crates/pyext/src/lib.rs b/crates/pyext/src/lib.rs
index 0e08cf72d03a..fa4145766fbb 100644
--- a/crates/pyext/src/lib.rs
+++ b/crates/pyext/src/lib.rs
@@ -11,6 +11,8 @@
 // that they have been altered from the originals.
 
 use pyo3::prelude::*;
+pub use qiskit_cext::sparse_observable::*;
+pub use qiskit_cext::*;
 
 #[inline(always)]
 #[doc(hidden)]
diff --git a/qiskit/__init__.py b/qiskit/__init__.py
index ab585b9cf621..5cc4c9307abc 100644
--- a/qiskit/__init__.py
+++ b/qiskit/__init__.py
@@ -131,6 +131,20 @@
 from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager
 from .version import __version__
 
+
+def get_lib() -> str:
+    """Get the path to the compiled library object.
+
+    When interfacing with Qiskit's C API for a Python extension the shared library object
+    returned from this function must be what is linked against. This will ensure that all
+    objects are built using the same library file.
+
+    Returns:
+        The path.
+    """
+    return _accelerate.__file__
+
+
 __all__ = [
     "AncillaRegister",
     "ClassicalRegister",