Products

Preloop

Uses AIMCPSkill

The Open Source Control Plane for AI Agents

preloop.ai Source★ 6AI Models & Agents / Prompts, Evals & LLM Observability

AI Benchmark
Desktop
Mobile
Monthly visits
None yet
No traffic data yet
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$12/mo
Lower than 66% of peersNiche median $21.6/mo
Creators
Yannis Chatzikonstantinou
No social account linked
Launched
10mo ago
2026-01-20 · Est.

Traffic

Last 12 months
Monthly visits

No traffic data yet.

Events2 marketing moves

Marketing moves

Launches, search & content, referrals, promotions
X accounts@preloopai

  • Launched on Product HuntLaunch

    The MCP Governance Layer

    Jan 23 · 10mo agoLaunch page

  • Launched on Show HN (4 pts · 1 comments)Launch

    Preloop – An MCP proxy for human-in-the-loop tool approvals — Hey HN, I’m Yannis, co-founder of Preloop. We’ve built a proxy for the Model Context Protocol (MCP) that lets you add human approval gates…

    Jan 20 · 10mo agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Show HN
2026-01-20Source
Post excerpt:
Hey HN, I’m Yannis, co-founder of Preloop. We’ve built a proxy for the Model Context Protocol (MCP) that lets you add human approval gates to your AI agents without changing your agent code. We’re building agents that use tools (Claude Desktop, Cursor, etc.), but we were terrified to give them write-access to sensitive systems (Stripe, Prod DBs, AWS). We did

Open Source & Agent Ecosystem

GitHub · MCP / Skill
preloop/preloop
Last commit 2026-11-07
GitHub Stars
★ 6
Forks
3
License
See repository
Primary language
Python
Browse peer open-source projects →

Agent, MCP & Developer Integration

MCP ServerAgent SkillCLI / SDK
Integration docs
Ecosystem & integrations:
Claude CodeCodex CLICursorGemini CLIOpenClawHermesOpenCodeWindsurfCopilot CLIClaude Desktop
Exposed tool capabilities:
Human-in-the-LoopAgent Audit TrailsAgent MonitoringRole-based access controlTeam approval workflowsModel price overrides
Browse all MCP Server products →

Traffic sources

Traffic breakdown

No traffic channel or country breakdown data for this website yet.

View similar products ↓

Search

Domain authority —Domain registered Unknown

No search keyword data for this website yet.

Traffic data: Vaneform

Pricing

Free
$0
Free includes 3 agents
Pro
$12/mo
Billed annually $10/mo-17%
One person, up to 10 agents.
Team
$120/mo
Billed annually $100/mo-17%
Up to 5 people, up to 100 agents.
Business
$350/mo
Billed annually $300/mo-14%
Up to 20 people, every agent governed.
Open Source
$0
Business
$6,000/yr (billed annually)
Up to 25 users on your infrastructure.
Enterprise
$30K/yr (billed annually)
Up to 100 users.

Trial: None · 5 paid tiers ($12–$30000) · Up to 17% off annually · Observed 2026-11-09 · Pricing page

Entry price $12/mo, Lower than 66% of peers; “Prompts, Evals & LLM Observability” median is $21.6/mo.View pricing benchmark

Pages & changes

Tracked since 2026-01-23

Key pages

Weekly snapshots
preloop.ai/ Snapshot 2026-11-09

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

How much does Preloop cost?
Free: $0; Pro: $12/mo (annual billing available); Team: $120/mo (annual billing available); Business: $350/mo (annual billing available); Open Source: $0; Business: $6,000/yr (billed annually); Enterprise: $30K/yr (billed annually). Observed 2026-11-09. Check the source for current billing terms, usage limits and taxes.Source
What is Preloop and what platforms does it support?
Preloop is catalogued under Prompts, Evals & LLM Observability: The Open Source Control Plane for AI Agents. Supported platforms: MCP Server, CLI / SDK.
Is Preloop open source?
Preloop has a public repository (https://github.com/preloop/preloop) with its source repository published, recording 6 GitHub stars.Source

Related products in this category

AI Models & Agents / Prompts, Evals & LLM Observability

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