The memory layer
your agents are missing.

ContextQ gives AI coding agents persistent, searchable memory that compounds across conversations, projects, and tools. Built on Postgres + pgvector + Elasticsearch with PKM-grade memory evolution.

31

MCP tools

6

Agent clients

RRF

Hybrid search

claude-code · ~/repo

# Save a decision once, available everywhere

$ /ctq save "Auth flow uses Zitadel JWT, RS256 only"

saved · ctx_4f2 · type=reference

# Hybrid retrieval the next session, the next project

$ /ctq search "how do we sign tokens"

full-text + vector + RRF fusion

3 results · 92ms · rank=ctx_4f2

# Synthesize across stored knowledge

$ /ctq dream

clustering 47 entries...

synth 3 MOCs · 12 supersedes · 4 archived

memory map · live 2,847 entries
deploy.md auth-flow schema.sql jwt-rs256 tenants migrations
reference synthesis project

Works with the agents you already use

Claude Code Cursor Codex Gemini CLI Windsurf Cline

Features

Memory that thinks, not just stores.

Vector DBs give you embeddings. ContextQ gives you a second brain that clusters, links, and prunes itself.

Signature

Dream synthesis

LLM-assisted passes cluster related entries, write durable summaries, and archive the originals — keeping your memory atomic and discoverable. Think weekly retrospective for your second brain.

deploy hits Lavender
use EasyPanel
SSH workaround
migrations first
MOC · deploy
Lavender prod via EasyPanel, SSH fallback when deployService fails, always migrate before promote.

Hybrid search

Full-text (Postgres tsvector + Elasticsearch BM25) fused with pgvector cosine via Reciprocal Rank Fusion. Find context fast, even with vague queries.

[[auth-flow]] supersedes

Typed links

Wikilinks resolve to typed edges (supersedes, contradicts, derived_from). Memory evolution auto-archives outdated entries.

31 MCP tools, one endpoint

Drop the HTTP MCP URL + your API key into Claude Code, Cursor, Codex, Gemini, Windsurf, Cline. Every agent gets the same memory.

v1
ctx_save ctx_search ctx_dream ctx_link ctx_mocs ctx_evolve ctx_ingest ctx_chunks +23 more

Tamper-evident audit chain

Every write is hash-chained. Verify integrity on demand, export CSV, set per-tenant retention. Tenant-isolated row-level security + AES at rest.

sha256 7a3f…b2e9 c14d…91a3 verified

How we compare

Not just a vector DB. Not just a memory API.

ContextQ is the only stack that combines hybrid retrieval, PKM-grade evolution, and developer-tool ergonomics.

Capability
ContextQ
Mem0 Zep Pinecone
Hybrid full-text + vector + RRF partial partial
Dream / synthesis (LLM-assisted)
Typed links + MOC clustering
Memory evolution (auto-archive) partial
MCP native (31 tools)
Tamper-evident audit chain
Bi-temporal lifecycle
Entry-level price Free 1k / $19 $19+ $99+ $70+

Comparison reflects publicly available pricing and feature pages as of May 2026. Independent assessment, not affiliated.

Get started

Three steps. Five minutes.

Two install paths — universal MCP, or the /ctq skill for Claude Code power users.

01

Create an API key

Sign up free, no credit card. Create a tenant, generate a scoped API key from the dashboard.

02

Connect your agent

Paste the MCP endpoint into Claude Code, Cursor, Codex, Gemini CLI, Windsurf, or Cline. Tools auto-discover.

03

Save and search

Your agents now share memory across sessions, projects, and editors. Decisions compound instead of evaporating.

Drop-in config

.mcp.json
claude_desktop_config
{
  "mcpServers": {
    "contextq": {
      "type": "http",
      "url": "https://api.contextq.dev/mcp",
      "headers": {
        "Authorization": "Bearer ctq_••••••••"
      }
    }
  }
}

Works the same in Cursor, Codex, Gemini, Windsurf, Cline.

Tool surface

31 tools. Seven groups. One memory layer.

Full CRUD, PKM operations, ingest, events, admin — every capability the agent needs.

ctx_save ctx_search ctx_list ctx_get ctx_update ctx_delete ctx_bulk_update ctx_import ctx_stats ctx_dream ctx_link ctx_links ctx_evolve ctx_chunks ctx_mocs ctx_regenerate_mocs ctx_saved_searches_list ctx_saved_searches_create ctx_saved_searches_get ctx_saved_searches_update ctx_saved_searches_delete ctx_saved_searches_run ctx_run_saved_search ctx_ingest ctx_ingest_status ctx_events_recent ctx_memory_review_logs ctx_memory_review_run ctx_admin_rate_limit_get ctx_admin_rate_limit_set ctx_audit_cleanup_run ctx_save ctx_search ctx_list ctx_get ctx_update ctx_delete ctx_bulk_update ctx_import ctx_stats ctx_dream ctx_link ctx_links ctx_evolve ctx_chunks ctx_mocs ctx_regenerate_mocs ctx_saved_searches_list ctx_saved_searches_create ctx_saved_searches_get ctx_saved_searches_update ctx_saved_searches_delete ctx_saved_searches_run ctx_run_saved_search ctx_ingest ctx_ingest_status ctx_events_recent ctx_memory_review_logs ctx_memory_review_run ctx_admin_rate_limit_get ctx_admin_rate_limit_set ctx_audit_cleanup_run
Core CRUD 7 tools Bulk + stats 2 tools PKM 7 tools Saved searches 7 tools Ingest 2 tools Events / review 3 tools Admin 3 tools Core CRUD 7 tools Bulk + stats 2 tools PKM 7 tools Saved searches 7 tools Ingest 2 tools Events / review 3 tools Admin 3 tools

Pricing

Start free. Scale when ready.

All plans include hybrid search, MCP integration, audit chain, and tenant isolation. Cancel anytime.

Free

For personal projects

$0 forever

  • 1,000 context entries
  • 1 dream synthesis per day
  • Hybrid search (full-text + vector)
  • MCP integration
Get started
Most popular

Pro

For solo builders shipping fast

$19 /mo

$190/yr · save 17%

  • 10,000 context entries
  • 200 dream syntheses / month
  • Full memory evolution (auto-archive, MOCs)
  • External LLM (Claude Sonnet) for premium synth
  • 90-day audit log + CSV export
Start 14-day trial

Team

For teams scaling memory together

$79 /mo

$790/yr · save 17%

  • 50,000 context entries
  • 1,000 dream syntheses / month
  • 5 team seats (+$9 each extra)
  • Priority email support
  • 365-day audit log + 99.5% uptime SLA
Start 14-day trial

Enterprise

For organizations with custom needs

Custom

starting $499/mo

  • Unlimited entries + queries
  • Custom domain + SSO/SAML
  • Bring-your-own-key (Anthropic, embedding)
  • 99.9% custom SLA + dedicated support
  • Custom audit retention + dedicated infra
Contact sales

All plans include tenant isolation, AES-256 encryption at rest, and the tamper-evident audit chain.

Stop teaching your agents
the same thing twice.

Free for the first 1,000 entries. No credit card. Five minutes to set up.