curl.
Walk through a real question
Connect, ask broadly, drill down, check the citations — one question end to end.
How the tools are organised
There is no singletool_list. Tools are grouped into categories, and each category exposes its
own three-tool trio:
gdelt_cloud_tool_list / _tool_get / _tool_call, the
vessel tools through maritime_tool_*, and so on.
Picking the category is the model’s first decision, and it is the one most worth getting right —
gdelt_cloud is the anchor for anything about events, actors or dynamics, while the other categories
are registries you consult once you know what you are looking for.
This is progressive discovery, and it exists for a specific reason: there are far more underlying
tools than any model should carry in its context, and their value lists alone run past a thousand
entries. Advertising three tools per category instead means a model fetches one schema, on demand,
for the one tool it is about to use.
_tool_get before the first _tool_call to a tool you have not used
in this conversation. Guessing a parameter name is the most common failure mode, and the server
rejects unknown filters rather than silently ignoring them — which is the right behaviour, but only
helps if you read the error.
Every category and every tool
The full surface, generated from the same declaration the docs and the API reference share.
What is metered
A_tool_call costs the same as the REST call it makes and appears in the same usage reporting.
_tool_list and _tool_get are discovery and are not metered. An endpoint your entitlement does not
include returns an error naming what it needs — never an empty result, which would be
indistinguishable from missing data.
Beyond GDELT Cloud data
The server also carries enrichment tools that call third-party providers — macro series, prediction markets and web research. Those are vendor contracts rather than our data, and they are described in External tools.Integrations
Claude, Claude Code, ChatGPT, Codex, LangChain.
Skills
Packaged workflows the server can load on demand.

