diff --git a/pyproject.toml b/pyproject.toml
index b4fd0d0..8eb4ad5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,13 @@ requires-python = ">=3.8"
 license = {text = "MIT"}
 authors = [{name = "OpenCode", email = "devnull@example.com"}]
 
+# Runtime dependencies for tests and MVP API
+dependencies = [
+  "fastapi>=0.95.0",
+  "httpx>=0.23.0",
+  "pydantic>=1.10.0",
+]
+
 [tool.setuptools.packages.find]
 where = ["src"]
 include = ["edge_latency_aware_cross_venue_execution*"]
diff --git a/test.sh b/test.sh
index 195fba3..fe93a3c 100755
--- a/test.sh
+++ b/test.sh
@@ -2,6 +2,9 @@
 set -euo pipefail
 export PYTHONPATH="${PYTHONPATH:+$PYTHONPATH:}$PWD/src"
 
+echo "Installing test dependencies (fastapi, httpx, pydantic, etc.)" 
+pip install --upgrade --quiet fastapi httpx pydantic
+
 echo "Running tests (pytest)" 
 pytest -q