In the context of MCP, provenance refers explicitly to the ability to clearly trace, verify, and audit the origin and history of data, resources, decisions, and actions within MCP-enabled AI workflows.
More concretely, provenance within MCP includes:
- Where resources originated from:
Explicit documentation of sources such as databases, files, APIs, or other MCP servers providing context. - Which exact resources were used in generating prompts:
Clear auditability of every structured prompt and associated context used in interactions with language models. - When, why, and how actions were taken:
Auditable records showing explicit consent, policies, and validation logic behind every decision and tool invocation. - Who authorized or consented to an action:
Clear records showing explicit authorization and consent provided by users or policy-based logic. - Transparency of decision-making:
Ability to explicitly inspect and verify each step in MCP interactions (Client-to-Server, Server-to-External system, LLM-to-Client interactions).
Why is Provenance critical in MCP?
- Security and trust:
Ensuring every action and decision can be audited for compliance, regulatory purposes, and trustworthiness. - Compliance and governance:
Adhering to strict enterprise, regulatory, or ethical requirements around data usage, consent, privacy, and accountability. - Debugging and traceability:
Quickly identifying and resolving problems by clearly tracing back through structured interactions and decisions. - Transparency for users:
Providing explicit transparency, allowing users to fully understand and trust the interactions happening on their behalf.
Community discussions and proposals
As of the current MCP specification (Revision: 2025-06-18), provenance is not fully detailed within the spec itself. However, it seems to be an issue recognized as essential by the community:
- Proposal: Incorporate Secure Software Supply Chain Principles · Issue #526 · modelcontextprotocol/modelcontextprotocol
- [SPEC] Annotations for MCP Requests and Responses (security/privacy) · Issue #711 · modelcontextprotocol/modelcontextprotocol