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Vigil

PyPIInfrastructure

PulseGate's liveness check found it on 17 Sep 2026; it is registered on PyPI and has been in the index since 17 Sep 2026. How this is checked

Vigil is an MIT-licensed Python package for externally monitoring AI models and agents. It provides an activity ledger, counterfactual replay attribution, revealed-objective analysis, conformal escalation, fingerprinting, gateway capabilities, and a dashboard.

Inferred · not functionally tested

Open SourceMITCLISelf-hostedAPI
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Overview

6 features

Purpose: Monitoring and auditing AI model or agent behavior from outside the system with traceability and safety controls.

Inferred · not functionally tested

Audience: AI engineers and developers operating models or agents

Inferred · not functionally tested

Functions: monitoring, analytics

Inferred · not functionally tested

Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: MIT · platforms: CLI · deployment: cli, self_hosted, api_only

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: pypi.org. These links do not verify the individual claims.

Vigil is an Agent monitoring & governance project. Inferred · not functionally tested: It focuses on monitoring and auditing AI model or agent behavior from outside the system with traceability and safety controls. Inferred · not functionally tested: It is built as an open-source project for AI engineers and developers operating models or agents. Basis unknown · not verified: The project is open source (MIT). Basis unknown · not verified: It runs on the command line and API, and it can be self-hosted.

Vigil first shipped in 2026. Inferred · not functionally tested: Key capabilities include activity ledger, counterfactual replay, and attribution analysis. Inferred · not functionally tested: Catalogued interfaces include a public API.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Activity ledger
  • Counterfactual replay
  • Attribution analysis
  • Objective analysis
  • Conformal escalation
  • Agent fingerprinting

Topics: Inferred · not functionally tested

Tags
ai-observabilityagent-monitoringprompt-injection-detectionconformal-escalationcounterfactual-replay
AI capabilities
TextCodeStructured
Inference: Local

JSON profile · Text profile · Access guide

Built with & integrations

Connectors
API
Runs on
CLISelf-hostedAPI-only

Trust & compliance

License
MIT
Public signals
HTTPSOpen SourceFree tier

Indexing history

2

What PulseGate has recorded for this listing

  1. Indexed19 Sep · 21:40 UTC
    vigil-monitor seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open
  2. Indexed17 Sep · 16:13 UTC
    vigil-monitor seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open

Frequently asked questions about Vigil

What is Vigil?
Inferred · not functionally tested: Vigil focuses on monitoring and auditing AI model or agent behavior from outside the system with traceability and safety controls. It is catalogued under Agent monitoring & governance on PulseGate.
Who should use Vigil?
Inferred · not functionally tested: Vigil is an open-source project built for AI engineers and developers operating models or agents.
Is Vigil free?
Basis unknown · not verified: Yes — Vigil is open source under the MIT license and free to use.
What platforms does Vigil run on?
Basis unknown · not verified: Vigil runs on the command line and API. It can also be self-hosted.
Is Vigil still active?
PulseGate's liveness check found it on 17 Sep 2026.
What are alternatives to Vigil?
Similar projects tracked by PulseGate include Vigilator, vigilml, and vigil-agent-client.Vigilatorvigilmlvigil-agent-client
How long has Vigil been around?
Vigil first shipped in 2026.
Is Vigil open source?
Basis unknown · not verified: Yes — Vigil is open source under the MIT license.

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