ultrathink, but fast.

Semantic search for AI coding agents.

One call. Full context.
Purpose-built indexing returns precisely what your agent needs. No recursive searches, no wasted tokens.
agent task: find session authentication logic
with ultrasync mcp
● mcp_ultrasync_search
running0.0s
without ultrasync
● Analyzing codebase structure...
running0.0s

Structured results.

Native Model Context Protocol integration. Your agent gets actionable data, not raw text.

raw grep output

$ grep -r "checkout" ./src
./src/checkout/handler.ts:export async function checkout(cart: Cart) {
./src/checkout/handler.ts:  // checkout flow starts here
./src/checkout/validation.ts:export function validateCheckout(items) {
./src/checkout/payment.ts:import { checkout } from './handler';
./src/api/routes.ts:  router.post('/checkout', checkoutHandler);
./src/tests/checkout.test.ts:describe('checkout', () => {
./src/tests/checkout.test.ts:  it('should process checkout', () => {
./src/cart/actions.ts:  // redirect to checkout after adding

just text

ultrasync search response

{
  "results": [...],
  "memories": [
    {
      "text": "Stripe requires idempotency
        keys for checkout retries",
      "insight": "constraint",
      "context": "billing"
    },
    {
      "text": "Cart validation must run
        before payment intent creation",
      "insight": "decision",
      "task": "debug"
    }
  ]
}

code + memory from prior sessions

Built for agent workflows

Every feature designed to reduce token waste and give your agent the context it needs, instantly.

Persistent memory

Your agent remembers decisions, constraints, and bug findings from prior sessions. No more re-explaining context.

❯search|

Found 3 relevant memories from prior sessions:

● Context from prior sessions automatically included

Auto-classification

Context types detected via pattern matching. Auth, frontend, backend, k8s, billing - no LLM required.

Scanning codebase...0%

Detected contexts (283 files classified):

Extracted insights:

TODO23

FIXME7

HACK3

SECURITY2

● Zero LLM calls required~1ms lookups

Interactive explorer

Browse your indexed codebase with the Voyager TUI. Navigate files, preview symbols, search semantically.

ultrasyncvoyager

↑↓ navigate⏎ select/ search

Files

Symbols in session.ts

funvalidateSession:42

intSessionConfig:12

funrefreshToken:87

conSESSION_TTL:8

2,368 files indexed14,892 symbols

private beta

ultrasync for teams

Enterprise-grade semantic indexing with centralized memory management. Keep your team's context private, synchronized, and instantly accessible.

Private & secure

Self-hosted deployment keeps your codebase context on your infrastructure. No data leaves your network.

Shared context

Team-wide conventions, architectural decisions, and institutional knowledge accessible to every developer.

Collaborative memory

Debug findings, design decisions, and constraints persist across the entire team—not just individual sessions.

Central management

Administer conventions, manage access, and monitor usage across your organization from a single dashboard.

Interested in ultrasync for your team?

Get early access and help shape the enterprise roadmap.

Get in touch →