SourceryKitVerify agent tool callsbefore
The state of the art Python SDK for runtime verification of agent tool calling. Run production grade agentic workflows with greater accuracy and reliability.
Prove the tool call happened
Agents create verifiable handoffs that answers came from the right source and weren't changed — increasing reliability and security.
MCP
API
DB
100% error detection rate
Verifiable guardrails detect hallucinations, or wrong-source data without re-querying source systems. Perform retries. Heal workflows.
Ship reliable agents in minutes
Add the SourceryKit SDK in minutes and verify across agents, tools, and networks without complex tracing or cross-team setup.
$ pip install sourcerykit
Performance
From days to minutes
Traditional observability needs failures, traces, and classification before teams can improve agents. SourceryKit verifies handoffs in real time, catching errors earlier and accelerating learning.
+ Observability tools3x times faster to
build reliable agents.
3x
times faster to
build reliable agents.
Deploy Faster
Deploy verifiable guardrails without waiting for complex trace setup.
Catch failures earlier
Catch errors during execution, before users or downstream agents see them.
Improve agents faster
Use verification failure data to improve evals, and agent behaviour.
Integrations
Built for your existing tools
Connect SourceryKit to your existing stack and every agent interaction becomes verifiable. Every API call, database query, and MCP server interaction is intercepted and turned into a proof downstream agents can verify in milliseconds.
Use cases
Where errors are not an option
Customer service agents
Customers get answers they can actually trust. Order status, balances, plans, refunds, and support handoffs - all verifiable across systems of record.
UncloudedEarth3s
Tools
The verifiable data stack
Quick start
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