Private beta · Free tier available

Stop pasting code
into chat.

ACECode indexes your entire codebase once and serves it back through MCP to Claude, Cursor, VS Code, or your terminal — with semantic search, code graphs, git lineage, and learned conventions.

Start free → Read the docs
terminal
$ ace init && ace index
✅ Indexed 847 files · 12,840 chunks · 3,210 symbols in 42s
$ ace search "how does the auth middleware work?"
🔍 Found 8 relevant results in 280ms
→ packages/core/api/src/middleware/auth.ts:46
→ packages/features/auth/src/server/services/auth.service.ts:19
→ ... 6 more results
# Same query, now from Claude Code via MCP:
"The auth middleware lives at packages/core/api/src/middleware/auth.ts. It validates Bearer tokens against the api_keys table, then attaches the user to the Hono context as c.var.user. The session token version comes from session.service.ts:42..."

One index, three surfaces

Index your code once with the CLI. Access it from the surface that fits your workflow.

CLI

Free

ace search, ace index, ace watch. Scripts, hooks, terminal queries — everything an MCP tool can do has a CLI surface.

App dashboard

Free

Browser UI at app.acecode.dev. Project status, billing, API key management, search playground.

ADE

Pro+

ACE Development Environment — local-web IDE with the intelligence widgets baked in. VS Code-clone shell.

Built for AI-assisted dev work

Three things that matter when your AI assistant is reading your code.

🎯

Semantic + keyword hybrid

Vector similarity (Voyage embeddings) blended with BM25 full-text. Reranked with grok-4.3. ~230-400ms per query.

🧠

Memories that survive sessions

ACE detects patterns from your code and recalls them across conversations. No more re-explaining your conventions to every new chat.

🔌

MCP-native

Works with Claude Code, Cursor, Continue, and any other MCP client out of the box. No glue code, no proxies.

📐

Code graph + impact analysis

Map dependencies before refactoring. See the blast radius of a change. Trace call chains from any entry point.

🌐

Multilingual queries

Vietnamese, Chinese, Japanese — query in any language. The reranker is cross-lingual. Validated on 8 query languages.

🔍

Hallucination check

Validate any symbol or import path against the index. Catch AI suggestions that reference functions that do not exist.

Works with your AI tools

Drop the MCP server URL into any compatible client. We don't sit between you and your AI — we just feed it your code.

Claude Code · Cursor · Continue · VS Code (ACE ext) · Zed · Any MCP client
Setup guide →

Simple credit-based pricing

Pay for what your AI calls. Embeddings included.

Free

$0/mo

5K credits

1 project

Popular

Pro

$19/mo

50K credits

10 projects · ADE

Max

$49/mo

250K credits

50 projects · Grok

Business

$199/mo

1.5M credits

Self-host · SSO

How credits work →

Index once. Query forever.

Free tier: 1 project, 5K credits/month, no card needed.

Create free account → Browse the docs