--- title: "mcp-trust-plane vs prismor" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/abluva-research-mcp-trust-plane-vs-prismorsec-prismor" tools: ["abluva-research-mcp-trust-plane", "prismorsec-prismor"] --- # mcp-trust-plane vs prismor *GraphCanon updated Sep 20, 2026* ## Verdict Pick mcp-trust-plane if mCP Trust Plane is designed for organizations that need to enforce security policies on MCP traffic without modifying core components of the protocol stack; pick prismor if prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. [mcp-trust-plane](https://github.com/abluva-research/mcp-trust-plane) reports 100 GitHub stars, 26 forks, and 0 open issues, last pushed Jun 19, 2026. [prismor](https://prismor.dev) has 343 stars, 35 forks, and 46 open issues, last pushed Sep 11, 2026. Figures are from public GitHub metadata via [mcp-trust-plane's repository](https://github.com/abluva-research/mcp-trust-plane) and [prismor's repository](https://github.com/PrismorSec/prismor). | | [mcp-trust-plane](/tools/abluva-research-mcp-trust-plane.md) | [prismor](/tools/prismorsec-prismor.md) | | --- | --- | --- | | Tagline | Pluggable security framework for MCP traffic | Runtime firewall for AI agents to prevent rogue tool calls and security breaches | | Stars | 100 | 343 | | Forks | 26 | 35 | | Open issues | 0 | 46 | | Language | JavaScript | Python | | Adopt for | MCP Trust Plane is designed for organizations that need to enforce security policies on MCP traffic without modifying core components of the protocol stack. | Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. | | Categories | AI Agents, Evaluation & Observability | AI Agents, Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [mcp-trust-plane](/tools/abluva-research-mcp-trust-plane.md) | [prismor](/tools/prismorsec-prismor.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Very active (96%) | | Days since push | 85d | 0d | | Open issues (now) | 0 | 46 | | Stars delta | +1 (30d) | +63 (30d) | | Open issues delta | 0 (30d) | +34 (30d) | | Full report | [trust report](/tools/abluva-research-mcp-trust-plane/trust.md) | [trust report](/tools/prismorsec-prismor/trust.md) | ## Decision facts: mcp-trust-plane - **Pricing:** freemium - MCP Trust Plane is open-source under Apache 2.0, making it available at no cost but provides flexibility to extend commercially through proprietary filter implementations. - **Requirements:** Min 1 GB RAM - **Adopt for:** MCP Trust Plane is designed for organizations that need to enforce security policies on MCP traffic without modifying core components of the protocol stack. ## Decision facts: prismor - **Pricing:** freemium - Free with a commercial license for advanced features. - **Requirements:** Min 1 GB RAM - **Adopt for:** Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. - **License detail:** Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. ## Choose when ### Choose mcp-trust-plane if… - mcp-trust-plane is primarily JavaScript; prismor is Python. - Pricing: MCP Trust Plane is open-source under Apache 2.0, making it available at no cost but provides flexibility to extend commercially through proprietary filter implementations.. - Tags unique to mcp-trust-plane: access-control, data-governance-and-ai, data-security, enterprise-security. - mcp-trust-plane ships Docker support for self-hosted deployment. - MCP Trust Plane should be used when you require granular control over tool calls in your MCP-enabled systems, such as enforcing PII redaction or operation blocking. ### Choose prismor if… - prismor is primarily Python; mcp-trust-plane is JavaScript. - Pricing: Free with a commercial license for advanced features.. - Tags unique to prismor: agent-security, llm-security, prompt-injection, security-tools. - When you need a dedicated firewall for AI tools to block unauthorized calls. ## When NOT to use mcp-trust-plane - Avoid MCP Trust Plane if your security needs do not require modification of traffic post-response, as it introduces an additional layer of complexity and latency. - MCP Trust Plane may not be the best choice for environments that strictly enforce language-specific policies since its filters are written in any language and must comply with a strict contract. ## When NOT to use prismor - Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. - Not suitable if you prioritize open-source contributions over runtime protection. ## Common questions ### What is the difference between mcp-trust-plane and prismor? mcp-trust-plane: Pluggable security framework for MCP traffic. prismor: Runtime firewall for AI agents to prevent rogue tool calls and security breaches. See the comparison table for live GitHub stats and shared categories. ### When should I choose mcp-trust-plane over prismor? Choose mcp-trust-plane over prismor when mcp-trust-plane is primarily JavaScript; prismor is Python; Pricing: MCP Trust Plane is open-source under Apache 2.0, making it available at no cost but provides flexibility to extend commercially through proprietary filter implementations.; Tags unique to mcp-trust-plane: access-control, data-governance-and-ai, data-security, enterprise-security; mcp-trust-plane ships Docker support for self-hosted deployment; MCP Trust Plane should be used when you require granular control over tool calls in your MCP-enabled systems, such as enforcing PII redaction or operation blocking. ### When should I choose prismor over mcp-trust-plane? Choose prismor over mcp-trust-plane when prismor is primarily Python; mcp-trust-plane is JavaScript; Pricing: Free with a commercial license for advanced features.; Tags unique to prismor: agent-security, llm-security, prompt-injection, security-tools; When you need a dedicated firewall for AI tools to block unauthorized calls. ### When should I avoid mcp-trust-plane? Avoid MCP Trust Plane if your security needs do not require modification of traffic post-response, as it introduces an additional layer of complexity and latency. MCP Trust Plane may not be the best choice for environments that strictly enforce language-specific policies since its filters are written in any language and must comply with a strict contract. ### When should I avoid prismor? Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. Not suitable if you prioritize open-source contributions over runtime protection. ### Is mcp-trust-plane or prismor more popular on GitHub? prismor has more GitHub stars (343 vs 100). Stars measure visibility, not whether either tool fits your constraints. ### Are mcp-trust-plane and prismor open source? Yes - both are open-source projects on GitHub (mcp-trust-plane: Apache-2.0, prismor: Apache-2.0). ### Where can I find alternatives to mcp-trust-plane or prismor? GraphCanon lists graph-backed alternatives at [mcp-trust-plane alternatives](/tools/abluva-research-mcp-trust-plane/alternatives) and [prismor alternatives](/tools/prismorsec-prismor/alternatives) ([mcp-trust-plane markdown twin](/tools/abluva-research-mcp-trust-plane/alternatives.md), [prismor markdown twin](/tools/prismorsec-prismor/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/abluva-research-mcp-trust-plane-vs-prismorsec-prismor.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, mcp-trust-plane or prismor? mcp-trust-plane: Steady. prismor: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for mcp-trust-plane and prismor? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [mcp-trust-plane trust report](/tools/abluva-research-mcp-trust-plane/trust); [prismor trust report](/tools/prismorsec-prismor/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=abluva-research-mcp-trust-plane`](/api/graphcanon/graph?tool=abluva-research-mcp-trust-plane) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_