How to run this route from Python with the Ouro SDK.
API access requires an API key. Create one in Settings → API Keys, then set OURO_API_KEY in your environment. Install the SDK with pip install ouro-py.
POST /matra-genoa/sampleParameters and request body schema for this route.
Range: 0 to
Random seed; the same seed and request give the same samples where the model allows.
unconditionalchemical_systemformulaWhat to sample: anything ('unconditional'), structures within a chemical system ('chemical_system'), or polymorphs of one formula ('formula').
A formula, e.g. 'LiCoO2'. Required for task 'formula'.
Range: 1 to 64
How many structures to return.
Elements joined by dashes, e.g. 'Li-Mn-O'. Required for task 'chemical_system'.
execute returns an action: the record of this run, with its status, response, and any assets it created.
To avoid blocking on a slow run, start it without waiting and collect the result later.
By default a failed run comes back as an action with status error. Pass raise_on_error=True to raise an exception instead.
Every run is saved as an action. List yours, or read the logs of a single run. See the Python SDK reference for everything an action carries.
import os
from ouro import Ouro
ouro = Ouro(api_key=os.environ.get("OURO_API_KEY"))
# The ID also works, and stays the same if the route is renamed: "5cb7d3c1-82ca-4a74-a119-ead68e83d934"
route = ouro.routes.retrieve("mmoderwell/sample-crystal-structures-with-matra-genoa-for-genbench")
action = route.execute(
body={
"task": "unconditional",
},
)
print(action.status) # "success" or "error"
print(action.final_data)# Returns as soon as the run is accepted
action = route.execute(
body={
"task": "unconditional",
},
wait=False,
)
print(action.id, action.status)
# Later, even from another process
action = ouro.routes.poll_action(str(action.id), poll_interval=5, timeout=1800)
print(action.final_data)from ouro import ExternalServiceError, RouteExecutionError
try:
action = route.execute(
body={
"task": "unconditional",
},
raise_on_error=True,
)
except ExternalServiceError as exc:
# The API behind this route failed
print(exc.status_code, exc.retryable)
except RouteExecutionError as exc:
print(exc.action_id, exc.status, exc.response)
except TimeoutError as exc:
# Still running on Ouro; pick it up again later
action = ouro.routes.poll_action(exc.action_id, timeout=None)route = ouro.routes.retrieve("mmoderwell/sample-crystal-structures-with-matra-genoa-for-genbench")
# Your runs of this route
actions = route.read_actions()
for action in actions:
print(action.id, action.status, action.created_at)
# One run and its logs
action = ouro.routes.retrieve_action("your-action-id")
for entry in action.read_logs(chronological=True):
print(entry.level, entry.message)Part of service
Matra-Genoa
GenBench's sample contract: num_samples structures for a formula, a chemical system (Matra-Genoa picks the stoichiometry for each element set) or with no condition at all, each relaxed with ORB v3 and returned as an inline CIF. Duplicates are kept and nothing is saved or published, so a benchmark can call it many times. Usually answers in under a minute. Cite Matra-Genoa: De Breuck et al., npj Comput. Mater. 12, 60 (2026).
Execution
Usage
0 callsView history