Call the MCP tools directly from Python
You are building an agent (or testing one) and want to exercise the MCP endpoint itself — initialize, list tools, call one — without a chat client in the way.
Steps
- Connect with McpClient (reads OFFNADIR_DELTA_API_KEY).
- List the served tools, then call query_signals with a bbox.
Python
This is the runnable example shipped with the SDK (pip install offnadir-delta, then set OFFNADIR_DELTA_API_KEY).
python
"""Call the MCP endpoint directly with a static API key."""
import json
from offnadir_delta import McpClient
AOI = [22.0, 44.0, 40.0, 53.0]
def main() -> None:
with McpClient() as mcp: # reads OFFNADIR_DELTA_API_KEY
info = mcp.initialize()
server = info.get("serverInfo", {})
print(f"Connected to {server.get('name')} v{server.get('version')}")
print("\nTools:", [t["name"] for t in mcp.list_tools()])
result = mcp.call_tool("query_signals", {"bbox": AOI, "days": 7, "limit": 5})
# Tool results are MCP content blocks; the payload is JSON text.
for block in result.get("content", []):
if block.get("type") == "text":
print("\nquery_signals ->")
print(json.dumps(json.loads(block["text"]), indent=2)[:800])
brief = mcp.read_resource("brief://latest")
print("\nbrief://latest keys:", list(brief.keys()))
if __name__ == "__main__":
main()
MCP
Connect once, from any MCP client:
bash
claude mcp add --transport http off-nadir-delta \
https://offnadir-delta.com/api/v1/mcp \
--header "Authorization: Bearer ond_..."The tools this workflow uses: query_signals. See the full roster at /docs/mcp.
Go deeper
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One connected intelligence workflow across four surfaces — free to start, no GIS software or remote-sensing background required.