veil: Local privacy proxy for AI coding agents. Keep PII and secrets out of LLMs with deterministic pseudonymization

by lemonadesaltbagel · MCP Server · ★ 71

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install veil

pip install veil-proxy                 # core: httpx, cryptography, pyahocorasick
pip install "veil-proxy[postgres]"     # extras: postgres, mysql, mongo, redis, bedrock, ner, mssql, snowflake, all

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 67/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

ai-agentsdata-loss-preventiondata-maskingdata-privacydatabase-securityllm-securitylocal-firstmcppiipii-redaction

Quick Facts

Stars71
Forks11
LanguagePython
CategoryMCP Server
LicenseApache-2.0
Quality Score67/100
Open Issues1
Last Updated2026-10-31
Created2026-10-21
Platformsmcp, python
Est. Tokens~21k

About veil

veil Your AI coding agent reads production-shaped data. veil makes sure the model never sees a real person. veil is a local privacy proxy for AI coding agents such as Claude Code, Codex CLI, Aider and DeepSeek Harness. It replaces every real name, email, phone number, address, ID number and secret with a consistent pseudonym before the request leaves your machine.

Compatible Skills

These tools work well together with veil for enhanced workflows:

  • datafog-python — semantic(0.54)+complementary+rare_topics+same_lang+similar_pop+shared_platform (83%)
  • NoPII — semantic(0.50)+complementary+rare_topics+same_lang+similar_pop+shared_platform (81%)

veil alternative? Top 6 similar tools

Looking for a veil alternative? If you're comparing veil with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • datafog-python by DataFog · ⭐ 76

    Offline PII firewall for AI agents and LLM apps: fast local detection and redaction, Claude Code hook, LiteLLM

  • AegisGate by ax128 · ⭐ 67

    Open-source security gateway for LLM APIs — prompt injection detection, PII redaction, dangerous response sa

  • flare-redact by flare-collection · ⭐ 53

    Zero-dependency TypeScript secret and PII redaction for any SDK, logs, HTTP, LLM prompts, and scoped MCP tool

  • datamimic by rapiddweller · ⭐ 116

    Model-driven synthetic test data for CI/CD and analytics - deterministic, privacy-preserving, and domain-aware

  • PrivAiTe by crp4222 · ⭐ 60

    Self-hosted PII redaction proxy for LLM APIs and agent CLIs. Scrubs names, emails and secrets from Claude Code

  • cover by DavidCarliez · ⭐ 58

    Keep private data, internal infrastructure and secrets out of cloud coding agents without breaking your workfl

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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