diff --git a/Cargo.lock b/Cargo.lock
index db6fe1c..5cf712e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -190,7 +190,7 @@ dependencies = [
  "arrow-schema",
  "arrow-select",
  "atoi",
- "base64 0.22.1",
+ "base64",
  "chrono",
  "comfy-table",
  "half",
@@ -357,9 +357,9 @@ dependencies = [
 
 [[package]]
 name = "async-trait"
-version = "0.1.84"
+version = "0.1.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b1244b10dcd56c92219da4e14caa97e312079e185f04ba3eea25061561dc0a0"
+checksum = "3f934833b4b7233644e5848f235df3f57ed8c80f1528a26c3dfa13d2147fa056"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -402,12 +402,6 @@ dependencies = [
  "windows-targets",
 ]
 
-[[package]]
-name = "base64"
-version = "0.21.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
-
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -449,15 +443,15 @@ dependencies = [
 
 [[package]]
 name = "boon"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9672cb0edeadf721484e298c0ed4dd70b0eaa3acaed5b4fd0bd73ca32e51d814"
+checksum = "baa187da765010b70370368c49f08244b1ae5cae1d5d33072f76c8cb7112fe3e"
 dependencies = [
  "ahash 0.8.11",
  "appendlist",
- "base64 0.21.7",
+ "base64",
  "fluent-uri",
- "idna 0.5.0",
+ "idna",
  "once_cell",
  "percent-encoding",
  "regex",
@@ -467,6 +461,12 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "borrow-or-share"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3eeab4423108c5d7c744f4d234de88d18d636100093ae04caf4825134b9c3a32"
+
 [[package]]
 name = "borsh"
 version = "1.5.3"
@@ -924,11 +924,12 @@ checksum = "8bf7cc16383c4b8d58b9905a8509f02926ce3058053c056376248d958c9df1e8"
 
 [[package]]
 name = "fluent-uri"
-version = "0.1.4"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17c704e9dbe1ddd863da1e6ff3567795087b1eb201ce80d8fa81162e1516500d"
+checksum = "1918b65d96df47d3591bed19c5cca17e3fa5d0707318e4b5ef2eae01764df7e5"
 dependencies = [
- "bitflags 1.3.2",
+ "borrow-or-share",
+ "ref-cast",
 ]
 
 [[package]]
@@ -1579,16 +1580,6 @@ dependencies = [
  "syn 2.0.95",
 ]
 
-[[package]]
-name = "idna"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
-dependencies = [
- "unicode-bidi",
- "unicode-normalization",
-]
-
 [[package]]
 name = "idna"
 version = "1.0.3"
@@ -2059,7 +2050,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3cfccb68961a56facde1163f9319e0d15743352344e7808a11795fb99698dcaf"
 dependencies = [
  "async-trait",
- "base64 0.22.1",
+ "base64",
  "bytes",
  "chrono",
  "futures",
@@ -2142,7 +2133,7 @@ dependencies = [
  "arrow-ipc",
  "arrow-schema",
  "arrow-select",
- "base64 0.22.1",
+ "base64",
  "brotli",
  "bytes",
  "chrono",
@@ -2238,9 +2229,9 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ade2d8b8f33c7333b51bcf0428d37e217e9f32192ae4772156f65063b8ce03dc"
+checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
 dependencies = [
  "phf_macros",
  "phf_shared",
@@ -2248,9 +2239,9 @@ dependencies = [
 
 [[package]]
 name = "phf_codegen"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8d39688d359e6b34654d328e262234662d16cc0f60ec8dcbe5e718709342a5a"
+checksum = "aef8048c789fa5e851558d709946d6d79a8ff88c0440c587967f8e94bfb1216a"
 dependencies = [
  "phf_generator",
  "phf_shared",
@@ -2258,9 +2249,9 @@ dependencies = [
 
 [[package]]
 name = "phf_generator"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48e4cc64c2ad9ebe670cb8fd69dd50ae301650392e81c05f9bfcb2d5bdbc24b0"
+checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
 dependencies = [
  "phf_shared",
  "rand",
@@ -2268,9 +2259,9 @@ dependencies = [
 
 [[package]]
 name = "phf_macros"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3444646e286606587e49f3bcf1679b8cef1dc2c5ecc29ddacaffc305180d464b"
+checksum = "f84ac04429c13a7ff43785d75ad27569f2951ce0ffd30a3321230db2fc727216"
 dependencies = [
  "phf_generator",
  "phf_shared",
@@ -2281,9 +2272,9 @@ dependencies = [
 
 [[package]]
 name = "phf_shared"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90fcb95eef784c2ac79119d1dd819e162b5da872ce6f3c3abe1e8ca1c082f72b"
+checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
 dependencies = [
  "siphasher",
 ]
@@ -2585,6 +2576,26 @@ dependencies = [
  "bitflags 2.6.0",
 ]
 
+[[package]]
+name = "ref-cast"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf0a6f84d5f1d581da8b41b47ec8600871962f2a528115b542b362d4b744931"
+dependencies = [
+ "ref-cast-impl",
+]
+
+[[package]]
+name = "ref-cast-impl"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcc303e793d3734489387d205e9b186fac9c6cfacedd98cbb2e8a5943595f3e6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.95",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -2629,7 +2640,7 @@ version = "0.12.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43e734407157c3c2034e0258f5e4473ddb361b1e85f95a66690d67264d7cd1da"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "bytes",
  "futures-core",
  "futures-util",
@@ -2886,9 +2897,9 @@ checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
 
 [[package]]
 name = "security-framework"
-version = "3.1.0"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81d3f8c9bfcc3cbb6b0179eb57042d75b1582bdc65c3cb95f3fa999509c03cbc"
+checksum = "271720403f46ca04f7ba6f55d438f8bd878d6b8ca0a1046e8228c4145bcbb316"
 dependencies = [
  "bitflags 2.6.0",
  "core-foundation",
@@ -2899,9 +2910,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.13.0"
+version = "2.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1863fd3768cd83c56a7f60faa4dc0d403f1b6df0a38c3c25f44b7894e45370d5"
+checksum = "49db231d56a190491cb4aeda9527f1ad45345af50b0851622a7adb8c03b01c32"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -2941,9 +2952,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.134"
+version = "1.0.135"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d00f4175c42ee48b15416f6193a959ba3a0d67fc699a0db9ad12df9f83991c7d"
+checksum = "2b0d7ba2887406110130a978386c4e1befb98c674b4fba677954e4db976630d9"
 dependencies = [
  "indexmap",
  "itoa",
@@ -2999,9 +3010,9 @@ checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
 
 [[package]]
 name = "siphasher"
-version = "0.3.11"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38b58827f4464d87d377d175e90bf58eb00fd8716ff0a62f80356b5e61555d0d"
+checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
 
 [[package]]
 name = "slab"
@@ -3082,7 +3093,7 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 [[package]]
 name = "stac"
 version = "0.11.1"
-source = "git+https://github.com/stac-utils/stac-rs#37743d9d616f24e9306508877c74d8f02b0244a1"
+source = "git+https://github.com/stac-utils/stac-rs#0476743b841c6e413b77a5281a1515172fbcd804"
 dependencies = [
  "arrow-array",
  "arrow-cast",
@@ -3090,6 +3101,7 @@ dependencies = [
  "arrow-schema",
  "bytes",
  "chrono",
+ "geo",
  "geo-types",
  "geoarrow",
  "geojson",
@@ -3109,7 +3121,7 @@ dependencies = [
 [[package]]
 name = "stac-api"
 version = "0.7.0"
-source = "git+https://github.com/stac-utils/stac-rs#37743d9d616f24e9306508877c74d8f02b0244a1"
+source = "git+https://github.com/stac-utils/stac-rs#0476743b841c6e413b77a5281a1515172fbcd804"
 dependencies = [
  "async-stream",
  "chrono",
@@ -3134,7 +3146,7 @@ dependencies = [
 [[package]]
 name = "stac-derive"
 version = "0.2.0"
-source = "git+https://github.com/stac-utils/stac-rs#37743d9d616f24e9306508877c74d8f02b0244a1"
+source = "git+https://github.com/stac-utils/stac-rs#0476743b841c6e413b77a5281a1515172fbcd804"
 dependencies = [
  "quote",
  "syn 2.0.95",
@@ -3143,12 +3155,16 @@ dependencies = [
 [[package]]
 name = "stac-duckdb"
 version = "0.1.0"
-source = "git+https://github.com/stac-utils/stac-rs#37743d9d616f24e9306508877c74d8f02b0244a1"
+source = "git+https://github.com/stac-utils/stac-rs#0476743b841c6e413b77a5281a1515172fbcd804"
 dependencies = [
  "arrow",
+ "chrono",
  "duckdb",
+ "geo",
  "geoarrow",
+ "geojson",
  "log",
+ "serde_json",
  "stac",
  "stac-api",
  "thiserror 2.0.9",
@@ -3546,27 +3562,12 @@ version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2896d95c02a80c6d6a5d6e953d479f5ddf2dfdb6a244441010e373ac0fb88971"
 
-[[package]]
-name = "unicode-bidi"
-version = "0.3.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
-[[package]]
-name = "unicode-normalization"
-version = "0.1.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
-dependencies = [
- "tinyvec",
-]
-
 [[package]]
 name = "unicode-width"
 version = "0.2.0"
@@ -3592,7 +3593,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32f8b686cadd1473f4bd0117a5d28d36b1ade384ea9b5069a1c40aefed7fda60"
 dependencies = [
  "form_urlencoded",
- "idna 1.0.3",
+ "idna",
  "percent-encoding",
  "serde",
 ]
diff --git a/scripts/test b/scripts/test
index 8d69715..97e737d 100755
--- a/scripts/test
+++ b/scripts/test
@@ -2,4 +2,4 @@
 
 set -e
 
-uv run maturin dev --uv && uv run pytest "$@"
+maturin dev --uv && pytest "$@"
diff --git a/src/duckdb.rs b/src/duckdb.rs
index 76d654b..005140d 100644
--- a/src/duckdb.rs
+++ b/src/duckdb.rs
@@ -1,5 +1,9 @@
 use crate::{Error, Result};
-use pyo3::{exceptions::PyException, prelude::*, types::PyDict};
+use pyo3::{
+    exceptions::PyException,
+    prelude::*,
+    types::{PyDict, PyList},
+};
 use stac_api::python::{StringOrDict, StringOrList};
 use stac_duckdb::Client;
 use std::sync::Mutex;
@@ -57,4 +61,13 @@ impl DuckdbClient {
         let dict = pythonize::pythonize(py, &item_collection)?;
         dict.extract()
     }
+
+    fn get_collections<'py>(&self, py: Python<'py>, href: String) -> PyResult<Bound<'py, PyList>> {
+        let client = self
+            .0
+            .lock()
+            .map_err(|err| PyException::new_err(err.to_string()))?;
+        let collections = client.collections(&href).map_err(Error::from)?;
+        pythonize::pythonize(py, &collections)?.extract()
+    }
 }
diff --git a/stacrs.pyi b/stacrs.pyi
index e411358..1990982 100644
--- a/stacrs.pyi
+++ b/stacrs.pyi
@@ -7,10 +7,9 @@ class DuckdbClient:
         self,
         href: str,
         *,
-        intersects: Optional[str | dict[str, Any]] = None,
         ids: Optional[str | list[str]] = None,
         collections: Optional[str | list[str]] = None,
-        max_items: Optional[int] = None,
+        intersects: Optional[str | dict[str, Any]] = None,
         limit: Optional[int] = None,
         bbox: Optional[list[float]] = None,
         datetime: Optional[str] = None,
@@ -21,7 +20,52 @@ class DuckdbClient:
         query: Optional[dict[str, Any]] = None,
         **kwargs: str,
     ) -> dict[str, Any]:
-        """Search a stac-geoparquet file with duckdb, returning an item collection"""
+        """Search a stac-geoparquet file with duckdb, returning an item collection.
+
+        Args:
+            href: The stac-geoparquet file.
+            ids: Array of Item ids to return.
+            collections: Array of one or more Collection IDs that each matching
+                Item must be in.
+            intersects: Searches items by performing intersection between their
+                geometry and provided GeoJSON geometry.
+            limit: The page size returned from the server. Use `max_items` to
+                actually limit the number of items returned from this function.
+            bbox: Requested bounding box.
+            datetime: Single date+time, or a range (`/` separator), formatted to
+                RFC 3339, section 5.6.  Use double dots .. for open date ranges.
+            include: fields to include in the response (see [the extension
+                docs](https://github.com/stac-api-extensions/fields?tab=readme-ov-file#includeexclude-semantics))
+                for more on the semantics).
+            exclude: fields to exclude from the response (see [the extension
+                docs](https://github.com/stac-api-extensions/fields?tab=readme-ov-file#includeexclude-semantics))
+                for more on the semantics).
+            sortby: Fields by which to sort results (use `-field` to sort descending).
+            filter: CQL2 filter expression. Strings will be interpreted as
+                cql2-text, dictionaries as cql2-json.
+            query: Additional filtering based on properties.  It is recommended
+                to use filter instead, if possible.
+            kwargs: Additional parameters to pass in to the search.
+
+        Returns:
+            dict[str, Any]: A feature collection of STAC items.
+        """
+
+    def get_collections(self, href: str) -> list[dict[str, Any]]:
+        """Returns all collections in this stac-geoparquet file.
+
+        These collections will be auto-generated from the STAC items, one
+        collection per id in the `collections` column.
+
+        Eventually, these collections might be stored in the stac-geoparquet
+        metadata and retrieved from there, but that's not the case yet.
+
+        Args:
+            href: The stac-geoparquet file to build the collections from.
+
+        Returns:
+            A list of STAC Collections
+        """
 
 def migrate_href(href: str, version: Optional[str] = None) -> dict[str, Any]:
     """
diff --git a/tests/test_duckdb.py b/tests/test_duckdb.py
index 2ede109..3173e8e 100644
--- a/tests/test_duckdb.py
+++ b/tests/test_duckdb.py
@@ -28,3 +28,8 @@ def test_search_offset(client: DuckdbClient) -> None:
         item_collection["features"][0]["id"]
         == "S2A_MSIL2A_20241201T175721_R141_T13TDE_20241201T213150"
     )
+
+
+def test_get_collections(client: DuckdbClient) -> None:
+    collections = client.get_collections("data/100-sentinel-2-items.parquet")
+    assert len(collections) == 1