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 /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: "b6977ec2-b074-4e8c-845f-69ef227aef36"
route = ouro.routes.retrieve("mmoderwell/sample-crystal-structures-with-omatg-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-omatg-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
OMatG API
Sample raw, unrelaxed structures and return the CIFs inline. 'unconditional' runs de novo generation (4-20 atoms per cell); 'formula' runs CSP, cycling through the formula units that fit in 20 atoms; 'chemical_system' runs CSP on one formula per sample, drawn from the system's stoichiometries.
Is supplement to
Philipp Höllmer et al. · Forty-second International Conference on Machine Learning · 2025
Execution
Usage
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