A decision layer your stack can call
Rainbird exposes deterministic, auditable decisions over REST and MCP. Simple API calls return the outcome, the certainty, and the full evidence tree. Your AI agents get a decision layer they can trust. Run it live here →
Knowledge graph · UK transaction monitoring alert adjudication
tools/call · query { "name": "query", "arguments": { "goal": "has adjudication outcome", "subject": "DEMO-1" } }→ { "object": "Recommend SAR", "certainty": 95, "factID": "WA:RF:b07612…" }explain(session, factId) → the evidence tree behind the decision
Build Rainbird knowledge graphs
Start from a use case accelerator
Validated knowledge graphs for named regulated decisions, ready to download and make your own.
Build new greenfield projects in hours
Use the Rainbird Claude skill or our workbench to research, design, author, red team and live-test the knowledge graph.
Every Rainbird knowledge graph is code you own.
All Rainbird knowledge graphs are written in Rainbird's readable XML format called RBLang. You can export, diff, review in a pull request, and regression test in your CI process. Your knowledge graphs are files you own.
<!-- uk-cdd-pkyc-risk-model.xml -->
<!-- 45 concepts · 186 relationships · 312 rules -->
<relinst
type="has beneficial ownership threshold percent"
subject="CDD Policy"
object="25"/>
<relinst
type="case has identified beneficial owner"
cf="100"
name="R-C1j An individual whose aggregate effective ownership exceeds the threshold is a beneficial owner">
<condition rel="case involves party"
subject="%S" object="%O"/>
<condition rel="has party type"
subject="%O" object="Individual"/>
<condition rel="party has aggregate ownership percent"
subject="%O" object="%A"/>
<condition rel="has beneficial ownership threshold percent"
subject="CDD Policy" object="%T" weight="1"/>
<condition
expression="%A is greater than %T"
alt="The aggregate effective ownership of {{%A}} percent exceeds the {{%T}} percent beneficial ownership threshold"/>
</relinst>Three ways to integrate
Call it from an agent, a backend, or an enterprise workflow you already run.
MCP
Expose any Rainbird knowledge graph as an MCP tool. AI agents call it by name and get the decision back as a structured response. Fast integration and no custom code.
REST API & SDKs
Standard REST API with SDKs for JavaScript/TypeScript, Python and Java. Inject evidence, receive outcome plus evidence tree. Integrate into any backend, workflow engine or data pipeline.
Connectors
Pre-built connectors for UiPath, Microsoft Power and more, built on the REST API. Drop Rainbird into existing enterprise workflows without writing integration code.
Everything you need to get started

Start for Free
Sign up for the free Rainbird Community Edition, a fully functioning version of the Rainbird platform for non-commercial use.
Rainbird Claude Skill
Download and install the Rainbird Claude skill to design, author, live-test and red-team your own knowledge graphs.
Download the skill →Download instructions →Rainbird Docs
Full API reference, SDK guides, and other important development documents.
Visit the Docs →Rainbird Forum
Ask questions, share knowledge, graphs, and get answers from the Rainbird team and other builders.
Join the Forum →Rainbird Academy
Self-paced courses from graph zero to production deployment, including knowledge engineering fundamentals.
Visit the Academy →Start free. No credit card required.
The Rainbird Community Edition is free to start. Build and test your first knowledge graph in an afternoon. Upgrade when you are ready.