Mantic.sh

Context-aware structural code search engine that prioritizes relevance over raw speed. Analyzes file structure, paths, and metadata rather than file contents to help AI agents and developers find relevant code files. Includes go-to-definition, find-references, impact analysis, and session-based context carryover.

Evaluated Mar 07, 2026 (0d ago) vunknown
Homepage ↗ Repo ↗ Developer Tools code-search mcp-server structural-search monorepo code-intelligence go-to-definition impact-analysis semantic-search
⚙ Agent Friendliness
78
/ 100
Can an agent use this?
🔒 Security
79
/ 100
Is it safe for agents?
⚡ Reliability
70
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
75
Documentation
80
Error Messages
50
Auth Simplicity
82
Rate Limits
72

🔒 Security

TLS Enforcement
90
Auth Strength
78
Scope Granularity
72
Dep. Hygiene
80
Secret Handling
75

Agent execution/shell automation MCP. Shell access means high blast radius. Sandbox required for untrusted inputs. Auth tokens for remote execution must be kept secret.

⚡ Reliability

Uptime/SLA
72
Version Stability
72
Breaking Changes
68
Error Recovery
70
AF Security Reliability

Best When

You need AI agents to intelligently discover relevant files in large codebases using intent-based queries rather than exact string matching, especially in monorepos with 100K+ files.

Avoid When

You need fast exact string matching or content-level search -- ripgrep is faster for that. Overkill for small projects where a simple grep suffices.

Use Cases

  • AI agent file discovery in large codebases
  • Finding relevant code files by intent rather than exact string match
  • Impact analysis for code changes across monorepos
  • Symbol definition lookup and reference tracking
  • Session-based code exploration with context carryover

Not For

  • Quick exact text/string searches (use ripgrep instead)
  • Interactive file browsing
  • Content-level grep replacement

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

No authentication required. Runs entirely locally with zero data egress.

Pricing

Model: open_source
Free tier: Yes
Requires CC: No

Dual-licensed: AGPL-3.0 (free) and commercial license for proprietary use.

Agent Metadata

Pagination
unknown
Idempotent
Yes
Retry Guidance
Not documented

Known Gotchas

  • Slower than ripgrep for raw text speed -- agents expecting instant results on content search will be disappointed
  • MANTIC_MAX_FILES default of 5000 may need tuning for very large repos
  • Semantic reranking requires additional transformer model download

Alternatives

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Scores are editorial opinions as of 2026-03-07.

6470
Packages Evaluated
26150
Need Evaluation
173
Need Re-evaluation
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