Code Intelligence for Engineering Teams
Stop merging PRs
without knowing
what breaks.
N3MO posts a structural blast-radius report on every PR — showing exactly which downstream services are at risk before anyone clicks Merge. No LLMs. No guesswork. Pure AST math.
format_date() in utils/date.py affects 7 downstream components.• Direct callers: 3 symbols across 2 files
• Transitive blast radius: HIGH (8 caller nodes, depth ≤ 4)
• ⚠️ Billing service dependency detected — recommend extra review before merge.
Capabilities
Built for precision.
Not guesswork.
N3MO builds a relational knowledge graph of your entire codebase to deliver exact, deterministic impact analysis on every PR.
Transitive Blast Radius
Traces call links recursively to arbitrary depth — showing direct and indirect downstream impacts of any refactor or deletion. Find hidden dependencies that standard search tools miss.
> Found 12 matching transitive callers across 4 service layers.
27 Languages
Powered by GitHub's Tree-sitter. Parses Python, TS/JS, Java, Go, Rust, C++, Ruby, PHP, and 19 more — entirely locally.
Native MCP Server
Integrate directly into Cursor, Claude Desktop, or Windsurf. Let AI agents trace structures without hallucinating file paths.
GitHub Webhook — in under 2 seconds
Automatically post a full structural impact report as a PR comment the moment a pull request opens. No pipeline changes. No configuration overhead.
• Modifying
auth_user affects 3 downstream components.• Transitive blast radius: High Impact (8 caller nodes).
Who it's for
Made for the people
who own the codebase.
N3MO is built for the engineers who feel the most pain when a PR silently breaks production.
Staff Engineers
Architects managing large, legacy monoliths who need a reliable way to map sprawling dependencies before initiating major refactors.
Engineering Managers
Team leads who need confidence that a PR won't silently break a billing service or shared utility — without spending hours manually tracing dependencies.
AI Code Agents
Autonomous coding bots like Claude and Cursor that require a precise, deterministic knowledge graph to avoid hallucinating file structures.
How it works
Catches a breaking change
in three steps.
A junior developer touches a utility function. N3MO catches the billing dependency before anyone clicks Merge.
Configure the GitHub Webhook
Connect your repository and paste your webhook secret from the N3MO dashboard. No CI/CD pipeline changes needed.
Developer Opens a Pull Request
A junior developer modifies format_date() — a seemingly isolated utility. Unbeknownst to them, it's indirectly used by the billing service.
N3MO Posts the Impact Report
Within 2 seconds, N3MO intercepts the webhook, parses the entire AST, and posts a comment detailing the exact downstream services that depend on format_date(). Breaking change caught.
MCP Integration
Give your AI agent
a real map of your code.
Give Cursor and Claude deterministic structural context instead of random file chunks.
Claude Desktop
Automatically configure N3MO as an MCP tool for Claude to map blast radius before it writes code.
$ cd /path/to/project
$ n3mo mcp installCursor IDE
Add N3MO directly to Cursor settings for instant transitive impact queries during refactoring.
- Go to Settings → Models → MCP
- Type:
command - Command:
n3mo mcp start
N3MO vs. The Alternatives
Deterministic beats probabilistic.
Every time.
Why static AST analysis outperforms LLM-based review for blast radius work.
| Capability | CodeRabbit / Greptile | N3MO |
|---|---|---|
| Analysis basis | LLM diff review (can hallucinate) | Deterministic AST graph — exact |
| Blast radius depth | 1–2 hops at best | ⚡ Arbitrary transitive depth |
| False positives | Common with LLM models | Zero — pure math |
| Cost at scale | Grows with PR volume ($1/review) | Fixed monthly — no per-review cost |
| Self-hosted option | ✗ Cloud-only | ✓ Enterprise self-hosted |
| Native MCP for AI agents | ✗ Not supported | ✓ First-class MCP support |
N3MO is the structural safety net for teams already using CodeRabbit or Greptile.
Pricing
Plans & Pricing
Priced by repositories, not seats. Your whole team ships with one license.
No seat-based pricing. Ever.
N3MO prices by repositories, not users — your entire engineering team collaborates without buying additional licenses. Start free with local MCP; upgrade when you need automated PR checks.
Standard
Solo devs & small projects
Ideal for 1 focused microservice
- Up to 1 repo
- 30,000 LOC per repo
- Real-time PR Impact Analysis
- Interactive Dependency Graph
- Community support
Pro
Small teams (2–5 devs)
Covers most mid-size production apps
- Up to 3 repos
- 100,000 LOC per repo
- Everything in Standard
- Multi-repo dashboard
- Email & community support
Team Basic
Growing teams (6–20 devs)
Full-stack teams and monorepos
- Up to 5 repos
- 200,000 LOC per repo
- Everything in Pro
- Slack notifications & RBAC
- Priority SLA support
Team Pro
Advanced engineering teams
Large-scale repos and monorepos
- Up to 7 repos
- 500,000 LOC per repo
- Everything in Team Basic
- Custom webhooks
- Advanced Org RBAC
Enterprise
Large orgs (20+ devs)
Dedicated support & custom SLA
- Unlimited repos
- Unlimited LOC
- Self-hosted & Offline JWT
- SSO/SAML & Audit logs
- Dedicated Success Engineer
*Fair use applies. Contact us for extremely large monorepos.
Works with
Supports
Frequently Asked Questions
What counts as a repository?
Any GitHub repository that you connect to N3MO and actively analyze using our webhook integrations.
Can I invite unlimited teammates?
Yes. Once a repository is indexed, anyone on your team can view PR impact reports and use the interactive graph without needing their own license.
What is a monorepo?
A single repository containing multiple distinct projects. Monorepo support on the Team plan ensures we index all nested dependencies properly.
What happens if I exceed the limit?
You'll get a heads-up before any repo stops syncing, with a one-click upgrade — no PRs are ever silently blocked without warning.
Local CLI
Fully functional
from your terminal.
N3MO runs entirely locally — no cloud dependency required.
1. Installation
Install the N3MO CLI package directly from PyPI.
pip install n3mo2. Setup Database & Crawler
Spin up N3MO's PostgreSQL docker container and verify local variables in one command.
n3mo setup3. Index the Workspace
Index AST structures and build the relational call links inside Postgres.
n3mo index4. Run Impact Queries
Trace the full impact chain and launch the interactive visualizer in your browser.
n3mo impact "symbol_name" --graph──────────────────────────────────────────────────
Target: authenticate_user
──────────────────────────────────────────────────
◉ Direct Callers (3 symbols)
▸ login_endpoint api/auth.py:12
▸ refresh_token api/token.py:23
▸ validate_session middleware/auth.py:89
◎ Ripple Effects (5 symbols)
╰─▸ POST /login routes.py:67
╰─▸ admin_login admin/views.py:34
╰─▸ require_auth decorators.py:12
╰─▸ dashboard_view views/dashboard.py:8
╰─▸ settings_view views/settings.py:22
──────────────────────────────────────────────────
Total impacted: 8 references │ depth ≤ 3
Privacy and Code Governance
We believe code should be analyzed where it lives. N3MO is designed from the ground up to respect security boundaries and data governance rules.
Zero Stored Source Code
For SaaS users, N3MO analyzes code entirely in-memory on secure, ephemeral GitHub runners. We extract only structural graph metadata — your raw source code is never stored.
Zero-Trust Deployments
Enterprise users run the N3MO CLI natively inside their own private, air-gapped CI/CD pipelines. In this mode, your code literally never leaves your VPC.
Start in minutes
Catch breaking changes
before they reach production.
Free to start. No credit card required. Works with GitHub, GitLab, and Bitbucket.