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:

Tools for provenance