Hydrata - ANUGA Flood Simulation

hydrata-mcp-server

MCP server for Hydrata Cloud — build ANUGA flood models from terrain and input layers, run simulations, track progress, and retrieve results through the Model Context Protocol.

Connect and authenticate

Endpoint: https://hydrata.com/mcp/ — Transport: Streamable HTTP.

Every tool call needs the caller's own hydrata.com credential. The server holds no identity of its own: a tools/call must carry the caller's Authorization header (HTTP Basic for a hydrata.com account), which the server forwards verbatim to the Hydrata REST API — so results are scoped by the real user's project permissions and the audit trail names them. A tools/call without it is answered with 401 and WWW-Authenticate: Basic realm="hydrata.com" before any tool runs. initialize, tools/list and ping answer anonymously, so the tool catalog is browsable without an account and the MCP registry's liveness check stays true.

The server is not yet open to external accounts: there is no self-serve way to connect your own hydrata.com login to it today, and this README deliberately carries no client-side credential recipe. If you would like to use it, contact us at hydrata.com.

Tools

Version 0.2.0 exposes seventeen tools: nine that read projects and scenarios and drive a run, and eight that build a model from terrain and input layers the agent has already uploaded.

Tool	Description
list_projects	List ANUGA simulation projects (paginated)
get_project	Get project details including scenarios
get_scenario	Get a scenario's computed_status, mesh-triangle estimate and latest run
start_simulation	Start a flood simulation (local/EC2/Batch backends)
get_run_status	Lightweight status poll (<50ms)
get_run	Full run details with timing and results
cancel_run	Cancel an in-flight simulation
retry_run	Retry a failed simulation
list_runs	List runs across a project (with status filter)
create_project	Create an ANUGA project with a name and EPSG projection
presign_terrain_upload	Return a presigned URL + key so the agent PUTs the terrain GeoTIFF itself (no file bytes pass through MCP)
finalize_terrain_upload	Register the uploaded terrain; the import chain seeds the project's six default boundary/friction/inflow/rainfall/structure/mesh-region rows
get_terrain	Poll the terrain until it is ready (bounded; timed_out means call again)
create_time_series	Create a time series (rain gauge, hydrograph or tide/stage — series_type and units are top-level fields) from {"rowData": [...]}; a rainfall polygon binds to its gauge by the series name
attach_input_layer	Attach a GeoJSON dataset the agent already uploaded as the project's boundary/friction/inflow/rainfall/structure or mesh-region layer; breakline and culvert are refused (culvert flow is not conveyed)
create_scenario	Create a draft scenario and return its mesh-triangle estimate (resolution is a length in metres)
build_scenario	Build the scenario package; shows the estimate first and needs confirm=true above 100,000 triangles; polls computed_status to built; never re-posts a build that is in flight or already built (rebuild=true to force one); surfaces the server's 422 MESH_TOO_LARGE verbatim

No tool accepts file contents inline. The agent moves the bytes itself — the terrain GeoTIFF to the presigned URL, a GeoJSON layer to the REST API upload endpoint — and hands the server the resulting key or upload id.

Typical workflow

Run a scenario that already exists:

list_projects → get_scenario → start_simulation → poll get_run_status → get_run

Import a model and run it:

create_project → presign_terrain_upload → PUT the GeoTIFF → finalize_terrain_upload → get_terrain
→ create_time_series / attach_input_layer → create_scenario → build_scenario
→ start_simulation → poll get_run_status → get_run

What is Hydrata?

Hydrata is a geospatial hydraulic modeling platform. It runs ANUGA flood simulations in the cloud — upload terrain data, configure scenarios, run simulations on managed compute (Celery, EC2, or AWS Batch), and visualise results on interactive maps.

ANUGA is an open-source hydrodynamic model developed by Geoscience Australia and the Australian National University. It solves the shallow water wave equations using finite volumes on an unstructured triangular mesh.

Development

git clone https://github.com/Hydrata/hydrata-mcp-server.git
cd hydrata-mcp-server
pip install -e ".[dev]"
pytest -v

Contributions welcome — see issues.

License

MIT