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Universal Poison Armor

As LLM-integrated applications move from prototype to production, the attack surface for prompt injections and data poisoning has expanded significantly. Universal Poison Armor is an open-source MCP security layer designed to sit between your data sources and your model. Unlike traditional perimeter security, this tool functions as a specialized firewall within the Model Context Protocol framework, intercepting adversarial inputs—such as sybil attacks and poisoned RAG retrieval chunks—before they hit your context window. For developers, this means you can leverage external tools and dynamic data fetching without manually sanitizing every incoming retrieval. It integrates directly into your existing MCP ecosystem, providing a programmable defense layer that mitigates the risk of indirect prompt injection. Instead of building custom regex filters for every new integration, you can deploy this as a standardized middleware to harden your agentic workflows against evolving adversarial patterns.

Open ecosystemDevelopmentDevelopment
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01 / SERVER DETAIL

Server detail

As LLM-integrated applications move from prototype to production, the attack surface for prompt injections and data poisoning has expanded significantly. Universal Poison Armor is an open-source MCP security layer designed to sit between your data sources and your model. Unlike traditional perimeter security, this tool functions as a specialized firewall within the Model Context Protocol framework, intercepting adversarial inputs—such as sybil attacks and poisoned RAG retrieval chunks—before they hit your context window. For developers, this means you can leverage external tools and dynamic data fetching without manually sanitizing every incoming retrieval. It integrates directly into your existing MCP ecosystem, providing a programmable defense layer that mitigates the risk of indirect prompt injection. Instead of building custom regex filters for every new integration, you can deploy this as a standardized middleware to harden your agentic workflows against evolving adversarial patterns.

An MCP server that exposes Universal Poison Armor capabilities to MCP-compatible AI clients.

CapabilitiesDevelopmentMCPOpen source
ProtocolModel Context Protocol
Developer ecosystemOpen ecosystem
LicenseMIT / check source
SourceGitHub
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02 / TOOL TESTING

Tool testing

AVAILABLE TOOL

universal-poison-armor

Callable

Call the MCP capabilities provided by Universal Poison Armor and return a structured result.

PARAMETERS
inputPass arguments according to the server tool schema.
Tip: the tool may truncate responses. Use pagination parameters such as start_index to read long content in chunks.
03 / SERVICE CONFIGURATION

Connection modes

Remote
{
  "mcpServers": {
    "Universal Poison Armor": {
      "url": "Generated by the provider after deployment"
    }
  }
}

The Remote endpoint is generated by the provider after deployment; this page does not fabricate an unusable endpoint.

03 / WORKFLOW

How to use

  1. 01
    Step 1

    Review server capabilities and permission scope.

  2. 02
    Step 2

    Copy the install command or JSON configuration.

  3. 03
    Step 3

    Run a small connection test in your client.

  4. 04
    Step 4

    Adopt it long term only after reviewing access and maintenance.

04 / DISCUSSIONS

Discussions

Use this space to keep checking source information, usage experience and maintenance status.

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