Prismor
Prismor intercepts every AI agent tool call before it runs, blocking destructive commands and cloaking secrets at the runtime boundary.
The open-source runtime is the real story: command interception, secret cloaking, prompt-injection detection, and a tamper-evident local audit trail with no account required. Starter at $15/month (1 user, up to 5 agents, first month free) is a cheap way to add a live dashboard and the MCP gateway before committing to an enterprise rollout. Pass if your agents never call external tools, or if you want a broad SAST/DAST scanner — Prismor only defends the execution boundary.
Verified 5d ago · liveness 74/100 · cite: rightaichoice.com/tools/prismor
- Enterprises running coding agents like Claude Code, Cursor, and Codex against real repos and CI
- Security teams that need policy enforcement plus an audit trail at the tool-call boundary
- Developers who want to stop secret leaks from agent tool calls without gating the model
- Teams already managing infra as code in git who want the same workflow for agent policy
- Simple chatbots that never call tools — the interception layer has nothing to intercept
- Teams not yet running AI coding agents or MCP-based workflows
- Buyers looking for a general SAST/DAST or broad application security scanner
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Skip Prismor if your agents never call external tools or MCP servers and you only want model-output moderation - the interception layer has nothing to intercept and Prismor enforces at the tool boundary, not on the model.
Starter caps you at 1 user and up to 5 agents; adding a sixth agent or a second engineer means moving to Enterprise at custom pricing.
Starter at $15/month billed monthly for 1 user and up to 5 agents is priced for a single engineer or a small platform team, and it undercuts broad enterprise agent-security consoles that typically start in the thousands per month. It is more expensive than free OSS alternatives you assemble yourself from hooks and a local policy file. The honest comparison is that most of the governance depth - SSO, SCIM, taint control, drift detection, no usage caps - sits in Enterprise at custom pricing, so
In short
Prismor — Prismor intercepts every AI agent tool call before it runs, blocking destructive commands and cloaking secrets at the runtime boundary. Best for Enterprises running coding agents like Claude Code, Cursor, and Codex against real repos and CI, Security teams that need policy enforcement plus an audit trail at the tool-call boundary, Developers who want to stop secret leaks from agent tool calls without gating the model. Free to start; paid plans from $15/mo.
What's new in Prismor
Checked 5 days agoAcross the latest 10 updates: 1 changelog entry and 9 news mentions.
Prismor publishes 10 security checks before installing any MCP server
Checklist covers the access an MCP server gets to databases, files and PRs before it is wired into an agent.
Prismor compares hooks vs proxy for agent runtime security
Post breaks down what each enforcement point observes and when to pick one over the other.
Prismor details classifier screening prompt injection at 1.1s per 12,000 chars
Describes a classifier placed ahead of the LLM judge for prompt-injection screening with published latency.
Prismor argues harness alignment matters more than model alignment for coding agents
Post contends the agent harness, not the underlying model, drives security outcomes for coding agents.
Prismor OSS ships three governance modes for AI coding agents
Three governance modes released in the open-source project, with tradeoffs documented for each.
Prismor on why a wrong agent action depends on drifting org context
Argues the definition of a wrong agent action is org-specific and changes as context drifts.
Prismor: agent identity needs more than OAuth delegation
Post lays out gaps in OAuth delegation when used as the identity basis for autonomous agents.
Prismor maps where agent security tools attach and what they miss
Survey of attachment points for agent security tooling and the blind spots each leaves.
Prismor publishes guide to building a trustworthy AI control plane
Enterprise-focused writeup on control plane requirements for governing AI agents.
Prismor analyzes Hugging Face breach by autonomous AI agent
Incident analysis of the Hugging Face breach and the open-weight model used to investigate it.
What people actually say about Prismor — is it worth it?
We scanned public community sources for Prismor on Sep 23, 2026 and could not establish that the discussion we found is about this tool rather than something else sharing its name. Only 4 of the posts we fetched could be positively tied to Prismor. Rather than publish a sentiment score built on the wrong subject, we publish nothing here and re-run the scan.
Viability Score
How well maintained and how widely used is Prismor? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Intercepts every agent tool call before execution
- Blocks destructive commands like rm -rf and curl | bash
- Cloaks secrets so agents work with placeholders, not real credentials
- Prompt injection detection with a classifier screening ahead of the LLM judge
- Policy-as-code in policy.yaml with git versioning, CLI linting, and per-project overrides
- Layered policy: org floor, project overlays, and time-boxed exemptions
- Three governance modes for AI coding agents in the open-source runtime
- MCP gateway puts one policy layer in front of every MCP server
- MCP Hub inventories every MCP server and tool with deny controls
- Skill scanner checks MCP servers and agent skills for risky capabilities
- Canary honeytokens that trip when an agent goes looking for credentials
- Scoped agent pins a session to its stated task and flags pivots
- Secret sweep finds and redacts secrets already leaked into AI tool caches and configs
- Network isolation with egress allowlists, raw-IP blocking, and tunnel detection
- Supply chain risk-scoring of npm / pip / cargo installs
About Prismor
Prismor is a runtime security control plane for AI agents. It sits between your agents and the tools they call: every tool call routes through Prismor before execution, so destructive commands never run and secrets never reach the model in cleartext. The vendor positions it as an independent layer that works across coding agents (Claude Code, Cursor, Codex, GitHub Copilot, Windsurf) and agent frameworks including the OpenAI Agents SDK, LangChain, LangGraph, CrewAI, browser-use, Pydantic AI, AutoGen Core, Semantic Kernel, Google ADK, Claude Agent SDK, Vercel AI SDK, and any MCP-compatible agent. The control loop is short: connect an agent, route tool calls through Prismor, let the active policy decide allow / block / mask, then read the session timeline. Secrets get cloaked rather than exposed — the agent works with placeholders while the real credential stays outside the model's context. Policies are written as code in policy.yaml, versioned in git, linted, and applied from the CLI like infrastructure config, then overridden per team, per project, or per person with time-boxed exemptions. The open-source runtime is free forever and runs entirely on your machine with no account required: command interception, policy enforcement, secret masking, prompt-injection detection, and a tamper-evident local audit trail. The $15/month Starter platform adds a live dashboard of every call with verdicts, an MCP gateway that puts all MCP servers behind a single policy layer, MCP Hub for inventorying and denying servers or tools, a skill checker for risky agent skills, contextual security that understands your sessions and repos, and 30-day session history (1 user, up to 5 agents, 100,000 tool-interception events and 1,000 skill scans per month). Enterprise layers on contextual learning, per-session taint control, drift detection, human-in-the-loop approvals, OpenTelemetry routing to Datadog, New Relic, Splunk, or Grafana, and SSO/SCIM with org-wide policy hierarchy. The vendor
Behind the Verdict
Agent security has a nasty property: the dangerous thing happens in a tool call, which is to say it already happened by the time you read the model output. Prismor's bet is that the interception point is the only place worth defending, and it's a defensible bet. We'd reach for the open-source runtime first — it's free, it runs locally with no account, and it covers the failure modes that actually bite: rm -rf, curl | bash, credential reads, and secrets sitting in plaintext in your environment where the model can slurp them. Where it earns its keep is the secret cloaking. The agent keeps working (its demo shows a Claude Code session asking for a connection string and getting placeholders back), but the real key never enters the model context. Combined with canary honeytokens that trip when an agent goes looking for credentials, that's a materially different posture than a system prompt telling the model to behave. Policy-as-code is the second thing that separates it from point-and-click guardrails. You write policy.yaml, lint it, commit it, apply from the CLI, and override per team or per project with time-boxed exemptions. Teams already managing Terraform or Kubernetes will recognize the workflow immediately. Teams that don't will find it irritating, and that's the honest tradeoff — Prismor assumes someone on staff reviews rules. Starter at $15/month for one user and up to 5 agents is priced to be tried rather than procured; the first month is free and you can drop back to open source any time. What you're buying is the dashboard, the MCP gateway and hub, contextual security, and 30-day hosted history. Past the 100,000-event cap, new platform events pause — local enforcement keeps running, which is the correct failure mode. Our biggest caveat is scope. Prismor is
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Real-world workflow fit
Concrete scenarios for the personas Prismor actually fits — and what changes day-one when you adopt it.
Installs the open-source CLI, runs the setup wizard to wire the agent hooks, and writes a first policy.yaml that blocks rm -rf, credential reads, and pushes to protected branches.
Outcome: Destructive commands and private-key reads are blocked before execution, secrets are swapped for placeholders in context, and the local audit trail shows exactly what each session attempted - with no account and no data leaving the laptop.
Subscribes to Starter at $15/month, enrolls devices, puts the MCP gateway in front of every MCP server the team uses, and publishes an org policy floor with project overlays and time-boxed exemptions.
Outcome: Every MCP tool call is policy-checked from one place, MCP Hub shows which servers and tools exist so unwanted ones get denied from the console, and the dashboard gives a single view of allowed, blocked, and cloaked calls.
Uses the dashboard and audit log to pull an exportable timeline of agent activity, then routes agent events through OpenTelemetry into the existing SIEM, alongside the Enterprise org-wide policy hierarchy.
Outcome: A reviewable, tamper-evident record of what agents actually did, in the same SIEM the rest of the security programme already uses, instead of screenshots of terminal output.
Use Cases
- Block destructive shell commands from AI coding agents in real time
- Mask API keys and database connection strings before they reach the model
- Detect and block prompt injection and paraphrased attacks with semantic guard
- Enforce least-privilege identity profiles per agent, device, and user
- Generate an exportable audit trail for every tool call for compliance reviews
- Prevent supply chain attacks by risk-scoring npm/pip/cargo installs
- Scan MCP servers and agent skills for hidden risks
- Run PR vulnerability scanning and AI-generated fixes via the GitHub App
Models Under the Hood
as of 2026-10-18
Limitations
- The open-source Prismor runtime is free forever, runs entirely on the user's machine, and requires no account.
- The Starter platform is $15/month after a first month free, limited to 1 user, up to 5 agents, 100,000 tool-interception events/month, 1,000 skill scans/month, and 30-day session history.
- Enterprise pricing is custom and adds no usage caps, managed fleet-wide service, SSO/SCIM, per-session taint control, context drift detection, per-policy human-in-the-loop approval, and on-prem deployment.
- Prismor operates at the agent tool-call boundary rather than as a general codebase or application security scanner.
as of 2026-10-03
Verification history
We have re-verified Prismor 9 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Showing the 6 most recent of 9 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Prismor tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0 forever
Ideal for
Individual developers who want agent guardrails running entirely on their own machine and do not want to create an account or send telemetry anywhere.
What this tier adds
Starting tier: the full open-source CLI and runtime - command interception, policy enforcement, secret masking, prompt-injection detection, and a local tamper-evident audit trail.
Starter
$15/mo
Ideal for
One engineer or a single platform lead running up to 5 agents who wants hosted visibility and a single policy layer over every MCP server.
What this tier adds
Adds the platform on top of the runtime: live dashboard of every tool call, MCP gateway, MCP Hub, contextual security rules, skill checker, and 30-day session history - $15/month billed monthly after a free first month.
Enterprise
Custom
Ideal for
Security and compliance teams rolling agent policy across every user, device, and agent in a fleet, with SIEM integration and SSO requirements.
What this tier adds
Adds no usage caps, contextual learning, per-session taint control, drift detection, per-policy human-in-the-loop approval, OpenTelemetry routing to any SIEM, and Teams/SSO/SCIM with org-wide policy hierarchy. Custom pricing.
Where the pricing makes sense
The company stage and team size where Prismor's pricing actually pencils out — and where peers do it cheaper.
Starter at $15/month billed monthly for 1 user and up to 5 agents is priced for a single engineer or a small platform team, and it undercuts broad enterprise agent-security consoles that typically start in the thousands per month. It is more expensive than free OSS alternatives you assemble yourself from hooks and a local policy file. The honest comparison is that most of the governance depth - SSO, SCIM, taint control, drift detection, no usage caps - sits in Enterprise at custom pricing, so
Setup time & first value
How long it actually takes to get something useful out of Prismor — broken out by persona, not the marketing-page minute.
For the open-source runtime: roughly five minutes using the quickstart - install the CLI, run the setup wizard, enroll the device, and hook the agent - and the docs also offer a one-skill install you paste into Claude Code or Cursor that installs the CLI, wires hooks, and verifies the setup. Starter adds platform enrollment and device telemetry, so budget an afternoon. Enterprise rollout across a
Switching to or from Prismor
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From no agent guardrails: install the open-source CLI and let it hook your coding agents, then promote to Starter when you want hosted dashboards and the MCP gateway.
- →From a raw MCP config file: migrate your MCP servers behind the Prismor gateway so every server sits under one policy layer.
- →From scattered per-tool allowlists: move the rules into policy.yaml with an org floor, project overlays, and exemptions, then lint and apply from the CLI.
- →From a plain LLM proxy only: keep the proxy for agents you cannot hook and add hooks for the agents you can, per the vendor's hooks-versus-proxies guidance.
- ↗To a broad AppSec/SAST platform: keep Prismor for the tool-call boundary and add a codebase scanner alongside it, since Prismor deliberately does not cover your whole codebase.
- ↗To a fully self-managed stack: drop to the free open-source runtime, which keeps local policy enforcement, secret masking, and the local audit trail without the hosted dashboard.
- ↗From Starter back to free: cancel from the billing portal at any point and the workspace returns to the open-source tier at the end of the paid period, with local protection unaffected.
Integrations
Resources & Guides
- Documentationprismor.dev
Docs · Prismor
Full product docs from prismor.dev
- Quickstartprismor.dev
Quickstart · Prismor
Get up and running fast from prismor.dev
- Documentationprismor.dev
Installation · Prismor
Full product docs from prismor.dev
- Documentationprismor.dev
Mcp Gateway · Prismor
Full product docs from prismor.dev
- Documentationprismor.dev
Dashboard · Prismor
Full product docs from prismor.dev
Tutorials & Learning
YouTube returned 6 videos for “Prismor”, and we withheld 6: 6 could not be judged, because “Prismor” is a single word that other videos use for other things. We are showing none, because we could not prove any of them are about Prismor.
Official links
Featured Head-to-Head Comparisons
Prismor vs Push Security
Push Security is the better choice if your primary concern is browser-borne attacks and AI data leakage by employees, especially in SaaS-heavy environments. Prismor wins if you're deploying AI coding agents like Claude Code or Cursor and need runtime security for tool calls. They are complementary — Push protects the user browser side, Prismor protects the agent runtime side. Choose based on your immediate threat surface.
Prismor vs Sublime Security
Prismor and Sublime Security serve entirely different threat landscapes: Prismor secures AI agent tool calls (destructive commands, secret leaks, package supply chain risk) while Sublime defends email (BEC, phishing). Choose Prismor if you deploy coding agents like Claude Code or LangChain and need runtime guardrails; choose Sublime if your priority is email security with low false positives and custom detection.
Prismor vs Audioeye
Prismor and AudioEye serve entirely different domains: Prismor secures AI agent tool calls for enterprises deploying coding agents, while AudioEye automates web accessibility compliance. Choose Prismor if you're a security team running AI agents and need runtime policy enforcement; choose AudioEye if you need ADA/WCAG compliance with scanning, remediation, and legal support. They are not direct competitors.
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