Quantum-inspired keyring for AI coding agents with superposition, entanglement, and tunneling.
Copy the AI prompt to install this server into Claude Code, Cursor, or another agent β or use 1-click editor setup below.
π‘ Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)
OS keychain secrets for AI coding agents, over MCP.
Stop pasting API keys into plain-text .env files or wrestling with clunky secret managers. q-ring securely anchors your credentials to your OS's native vault (macOS Keychain, Linux Secret Service, Windows Credential Vault) and supercharges them with mechanics from quantum physics.
π View the Official Documentation for a complete CLI reference, MCP prompt cookbooks, and architecture details.
q-ring is designed to be installed globally so it's available anywhere in your terminal. Pick your favorite package manager:
The repo ships a Dockerfile that builds the MCP server and exposes it through mcp-proxy β useful for hosted MCP deployments (e.g. Glama) or keeping the server off the host entirely:
Note: inside a container there is no OS keychain (GNOME Keyring / macOS Keychain), so this path is for the MCP protocol surface, ephemeral use, and CI experiments β not for durable local secret storage. For day-to-day use install the CLI natively via one of the package managers above.
A single secret can hold different values for dev, staging, and prod simultaneously. The correct value resolves based on your current context.
q-ring auto-detects your environment without explicit flags. Resolution order:
--env flagQRING_ENV environment variableNODE_ENV environment variablemain/master β prod, develop β dev).q-ring.json project configSecrets can have a time-to-live. Expired secrets are blocked from reads. Stale secrets (75%+ lifetime) trigger warnings.
Every secret read, write, and delete is logged with a tamper-evident hash chain. Access patterns are tracked for anomaly detection.
Generate cryptographically strong secrets in common formats.
Link secrets across projects. When you rotate one, all entangled copies update automatically.
Create secrets that exist only in memory. They never touch disk. Optional TTL and max-read self-destruction.
Pack secrets into AES-256-GCM encrypted bundles for secure transfer between machines. Keys are derived with PBKDF2-HMAC-SHA512 (210 000 iterations) from your passphrase; each bundle records its iteration count, so bundles produced by older versions still unpack.
Import secrets from .env files directly into q-ring. Supports standard dotenv syntax including comments, quoted values, and escape sequences. The CLI accepts either a file path or raw content; the import_dotenv MCP tool only accepts raw content (it never reads files from disk) so an agent can't coerce it into reading arbitrary local files.
Export only the secrets you need using key names or tag filters.
Filter qring list output by tag, expiry state, or key pattern.
Declare required secrets in .q-ring.json and validate project readiness with a single command.
Generate a .env file from the project manifest, resolving each key from q-ring with environment-aware superposition collapse.
A qring:// reference is a committable pointer to a secret β it goes in your .env file instead of the value. qring run resolves references and manifest keys at spawn time, injecting only what the project declares (unlike exec, which injects the whole scope). Output is auto-redacted.
The key lives in the path, never the host (qring://project/KEY, not qring://KEY) β URL hosts are case-insensitive, and env-var keys are not. Malformed references fail loudly instead of leaking a literal qring://β¦ string into the child. A reference pinned to an environment: qring://project/DATABASE_URL?env=prod.
Wire the q-ring MCP server into an editor's MCP config with one command. Merges non-destructively β other servers are preserved, and an existing q-ring entry is only replaced with --force.
Push manifest secrets to GitHub Actions, Vercel, or Cloudflare Workers through each platform's own authenticated CLI (gh / vercel / wrangler) β q-ring never holds platform tokens, and values travel over stdin, never argv. Every push is recorded in the audit chain.
Test if a secret is actually valid with its target service. q-ring auto-detects the provider from key prefixes (sk- β OpenAI, ghp_ β GitHub, etc.) or accepts an explicit provider name.
Built-in providers: OpenAI, Anthropic, OpenRouter, Google AI (Gemini), Groq, Hugging Face, ElevenLabs*, Vercel*, Stripe, GitHub, AWS (format check), Generic HTTP. Keys are only ever sent in headers, never URLs. (*no safe public prefix β select explicitly with --provider or the manifest provider field.)
Output:
Register webhooks, shell commands, or process signals that fire when secrets are created, updated, or deleted. Supports key matching, glob patterns, tag filtering, and scope constraints.
Hooks are fire-and-forget: a failing hook never blocks secret operations. The hook registry is stored at ~/.config/q-ring/hooks.json.
SSRF protection: HTTP hook URLs targeting private/loopback IP ranges (127.0.0.0/8, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 169.254.0.0/16, ::1, fc00::/7) are blocked by default. DNS is checked up front and re-validated at connect time, so a hostname can't pass the check then rebind to a private address before the socket opens. To allow hooks targeting local services (e.g. during development), set the environment variable Q_RING_ALLOW_PRIVATE_HOOKS=1.
Set a rotation format per secret so the agent auto-rotates with the correct value shape.
Run commands with secrets securely injected into the environment. All known secret values are automatically redacted from stdout and stderr to prevent leaking into terminal logs or agent transcripts. Exec profiles restrict which commands may be run.
Migrating a legacy codebase? Quickly scan directories for hardcoded credentials using regex heuristics and Shannon entropy analysis.
Output:
Store complex connection strings that dynamically resolve other secrets. If DB_PASS rotates, DB_URL is automatically correct without manual updates.
Protect sensitive production secrets from being read autonomously by the MCP server without explicit user approval. Each approval token is HMAC-verified, scoped, reasoned, and time-limited. The gate applies to bulk reads too β export_secrets and teleport_pack over MCP skip approval-protected keys that lack a valid grant.
When an agent is blocked on an approval-protected key, q-ring raises a desktop notification (Linux notify-send, macOS osascript) naming the key and the exact qring approve command β throttled per key, disabled with QRING_NOTIFY=off.
Instead of storing static credentials, configure q-ring to dynamically generate short-lived tokens on the fly when requested (e.g. AWS STS, generic HTTP endpoints).
A safe, redacted overview of the project's secrets, configuration, and state. Designed to be fed into an AI agent's system prompt without ever exposing secret values.
Scan specific files for hardcoded secrets with optional auto-fix. When --fix is used, detected secrets are replaced with process.env.KEY references and stored in q-ring.
Encrypted, persistent key-value store that survives across AI agent sessions. Useful for remembering rotation history, project decisions, or context.
Install a git pre-commit hook that automatically blocks commits containing hardcoded secrets.
Analyze usage patterns and get optimization suggestions for your secrets.
Output includes most accessed secrets, unused/stale secrets, scope optimization suggestions, and rotation recommendations.
Quickly set up a new service integration with secrets, manifest entries, and hooks in one command.
Define project-level governance rules in .q-ring.json to control which MCP tools can be used, which keys are accessible, and which commands can be executed. Policy is enforced at both the MCP server and keyring level.
Over MCP, policy is resolved from the directory the server was launched in β not from the projectPath a caller passes β so an agent can't sidestep restrictions by pointing at a directory with no policy. Launch the MCP server from your project root (where .q-ring.json lives). Edits to .q-ring.json are picked up automatically (the policy cache invalidates on file change), so you don't need to restart the server.
Policy files are schema-validated and fail closed: an invalid policy object (say, a typo like denytools) raises a PolicyConfigError instead of being silently ignored, so a malformed rule can never widen access.
Example policy in .q-ring.json:
Restrict command execution with named profiles that control allowed commands, network access, timeouts, and environment sanitization.
Built-in profiles: unrestricted, restricted (denies network tools and interpreters/shells β python -c, node -e, bash and friends can't exfiltrate injected secrets; 30s limit), ci (5min limit, blocks destructive commands).
Every audit event includes a SHA-256 hash of the previous event, creating a tamper-evident chain. Since v0.14 the chain is also anchored with a keyed HMAC stored in the OS keyring, so qring audit:verify detects truncation and whole-file rewrites β not just in-place edits. Verify integrity and export logs in multiple formats.
Hosts with no OS keyring at all (headless Linux, containers, CI) can opt into an encrypted file store. Everything β secrets, the audit anchor, the agent-memory key β routes through it.
The store is AES-256-GCM at ~/.config/q-ring/file-backend.enc (mode 0600, path override via QRING_FILE_BACKEND_PATH), keyed by PBKDF2 from the passphrase. It is explicit-only: a missing OS keyring never falls back to it silently, and without the passphrase every operation fails closed β q-ring never encrypts under a machine-derivable key.
Extend beyond global and project scopes with team and org scopes for shared secrets across groups. Resolution order: project β team β org β global (most specific wins).
Attempt provider-native secret rotation (for providers that support it) or fall back to local generation.
Batch-validate all secrets against their providers in a CI-friendly mode. Returns a structured pass/fail report with exit code 1 on failure.
A background daemon that continuously monitors secret health, detects anomalies, and optionally auto-rotates expired secrets.
Launch a real-time dashboard in your browser that turns the entire quantum subsystem into one glanceable page. It's a single self-contained HTML page served locally β no cloud, no config, fully offline β built as a Preact + htm app (runtime bundled and inlined). It streams updates every 5 seconds via Server-Sent Events and diffs the DOM in place, so data refreshes without re-running entrance animations and your search input, caret, and scroll position are preserved across ticks.
What you get:
.q-ring.json summary with declared / required / missing / expired / stale keys.expired, stale, and protected filters. Press / to focus the search box.~/.config/q-ring/agent-memory.enc.read/write/delete/export), source chips (cli/mcp/hook/agent), and a free-text filter.Top-bar controls let you pause SSE updates (handy while reading the audit feed), refresh on demand, or jump to the raw JSON snapshot at /api/status. Keyboard shortcuts: / focus secrets search Β· P pause Β· R refresh.
The dashboard binds to 127.0.0.1 only and never exposes secret values, but it does surface key names, the audit log, and approval grants β so every route is gated by a random, per-launch token. qring status prints (and opens) the full URL including ?token=β¦; requests without the token get a 403. Stop the server to invalidate the token.
q-ring includes a full MCP server with 44 tools for AI agent integration.
| Tool | Description |
|---|---|
get_secret | Read a secret value (collapses superposition, audits the read) |
list_secrets | List keys + metadata in scope (values never exposed); filter by tag, expiry, glob |
set_secret | Create or overwrite a single secret with optional TTL, per-env state, tags, rotation format |
delete_secret | Permanently remove a secret value (not undoable from q-ring) |
has_secret | Boolean existence check that respects decay (no audit read) |
export_secrets | Render multiple secrets as .env or JSON for one-off export (skips approval-protected keys without a grant) |
import_dotenv | Parse .env text and bulk-store every key/value pair (accepts raw content only β never reads files) |
check_project | Compare .q-ring.json manifest against the keyring for missing/expired/stale keys |
env_generate | Render a complete .env body from the project manifest, with warnings for gaps |
| Tool | Description |
|---|---|
inspect_secret | Show metadata for one key (states, decay, entanglement, access count) without revealing the value |
detect_environment | Resolve which env slug should drive superposition collapse for the current context |
generate_secret | Generate a CSPRNG-backed value in a chosen format and optionally store it |
entangle_secrets | Link two keys so future writes/rotations propagate the same value |
disentangle_secrets | Break the sync link between two keys (does not delete values) |
| Tool | Description |
|---|---|
tunnel_create | Stash a value in process memory and return an opaque ID (never touches disk) |
tunnel_read | Fetch a tunneled value by ID β may self-destruct on read |
tunnel_list | Enumerate active tunnels with remaining read budget and TTL (IDs only) |
tunnel_destroy | Immediately remove a tunnel from memory before its TTL/reads run out |
| Tool | Description |
|---|---|
teleport_pack | Encrypt selected secrets into a passphrase-protected AES-256-GCM bundle |
teleport_unpack | Decrypt a teleport bundle and import each secret (with optional dry-run) |
| Tool | Description |
|---|---|
validate_secret | Hit the upstream service (OpenAI/Stripe/GitHub/AWS/HTTP) to confirm a single key is still live |
list_providers | Enumerate built-in validation providers and their auto-detect prefixes |
| Tool | Description |
|---|---|
register_hook | Register a shell/HTTP/signal side-effect that fires on write/delete/rotate |
list_hooks | Show every registered hook with match criteria, type, and enabled flag |
remove_hook | Detach a single hook by ID without touching any secrets |
| Tool | Description |
|---|---|
exec_with_secrets | Run a child command with secrets injected as env vars and any leaked values redacted from output |
scan_codebase_for_secrets | Walk a directory tree and flag hardcoded secrets via regex + entropy heuristics |
lint_files | Inspect a specific file list for hardcoded secrets with optional auto-fix to process.env.KEY |
| Tool | Description |
|---|---|
get_project_context | Single redacted snapshot of secrets, env, manifest, hooks, and recent audit activity |
agent_remember | Persist a non-secret note in encrypted agent memory across sessions |
agent_recall | Read a memory value, or list every stored key when no key is supplied |
agent_forget | Permanently delete a key from agent memory |
analyze_secrets | Usage profile: most-accessed, stale, never-accessed, no-rotation candidates |
| Tool | Description |
|---|---|
audit_log | Query the tamper-evident audit log filtered by key, action, and limit |
detect_anomalies | Surface burst-read and off-hours findings from audit history |
verify_audit_chain | Recompute the audit hash chain and report the first break point if tampered |
export_audit | Export audit events as jsonl, json, or csv for archival/SIEM |
health_check | Read-only scope sweep: decay/stale/expired counts plus current anomalies |
status_dashboard | Start a local SSE dashboard with live KPIs, secrets, hooks, and audit feed (returns a token-gated 127.0.0.1 URL) |
agent_scan | Multi-project health pass with optional autoRotate for expired secrets |
| Tool | Description |
|---|---|
check_policy | Dry-run a tool/key/exec action against .q-ring.json policy without performing it |
get_policy_summary | High-level overview of policy rule counts and approval/rotation requirements |
rotate_secret | Ask the upstream provider to issue a new credential and store it back in the keyring |
ci_validate_secrets | Batch-validate every accessible secret in scope and return a structured pass/fail report |
Add to .cursor/mcp.json or .kiro/mcp.json:
If q-ring is installed globally (e.g. pnpm add -g @i4ctime/q-ring):
If using a local clone:
Add to ~/.claude/claude_desktop_config.json:
Global install:
Local clone:
The q-ring repo ships three first-party editor packs β each one adds rules/steering, agents, commands, skills, hooks, and the MCP connector to its host editor.
| Plugin | Editor | Highlights |
|---|---|---|
cursor-plugin/ | Cursor | 3 rules, 5 skills, 2 agents, 8 slash commands, 3 hooks, MCP autoconnect |
kiro-plugin/ | Kiro | Official Power layout: POWER.md, root mcp.json, steering/, hooks/; or flatten with plugin:sync:kiro |
claude-code-plugin/ | Claude Code | CLAUDE.md memory, project .mcp.json, 2 subagents, 8 slash commands, 5 skills, 3 hook scripts |
The q-ring Cursor Plugin brings quantum secret management directly into your IDE with rules, skills, agents, commands, hooks, and a built-in MCP connector.
| Component | What it does |
|---|---|
| 3 Rules | Always-on guidance: never hardcode secrets, use q-ring for all ops, warn about .env files |
| 5 Skills | Auto-triggered by context: secret management, scanning, rotation, project onboarding, exec-with-secrets |
| 2 Agents | security-auditor (proactive monitoring) and secret-ops (day-to-day assistant) |
| 8 Commands | /qring:scan-secrets, /qring:health-check, /qring:rotate-expired, /qring:setup-project, /qring:teleport-secrets, /qring:dashboard, /qring:exec-safe, /qring:analyze |
| 3 Hooks | afterFileEdit (lint scan), sessionStart (project context), beforeShellExecution (.env guard) |
| MCP Connector | Auto-connects to qring-mcp via stdio β all 44 tools available |
Install from the Cursor marketplace or see cursor-plugin/README.md for manual setup.
The kiro-plugin/ directory is a Kiro Power per Create powers: POWER.md (metadata, onboarding, steering map), root mcp.json (MCP server must match the server name referenced in the power), and steering/ for workflows. Install from Kiro β Powers β Add power from Local Path and select kiro-plugin, or publish the folder on GitHub and use Add power from GitHub.
Always-on steering blocks hardcoded secrets and routes everything through q-ring; manual steering files act as agent personas (#qring-secret-ops, #qring-security-auditor), skill packs, and slash-style commands (#qring-cmd-scan-secrets, etc.). Optional hooks live in hooks/ for copy into .kiro/hooks/.
See kiro-plugin/README.md for the full breakdown.
For Claude Code, q-ring ships a CLAUDE.md memory file, a project-scoped .mcp.json, two subagents (secret-ops, security-auditor), eight slash commands (/qring-scan-secrets, /qring-health-check, β¦), five skills, and three hooks (post-edit lint reminder, pre-Bash .env guard, session-start context primer).
Existing CLAUDE.md, .mcp.json, or .claude/settings.json files are never silently overwritten β the script writes a <filename>.qring-template next to them so you can merge by hand. Pass --force to overwrite.
See claude-code-plugin/README.md for the full breakdown.
.q-ring.json)Optional per-project configuration:
branchMap supports glob patterns with * wildcards (e.g., release/* matches release/v1.0)secrets declares the project's required secrets β use qring check to validate, qring env:generate to produce a .env fileprovider associates a liveness validation provider with a secret (e.g., "openai", "stripe", "github") β use qring validate to testvalidationUrl configures the generic HTTP provider's endpoint for custom validationpolicy defines governance rules for MCP tool gating, key access restrictions, exec allowlists, and secret lifecycle requirementsSee CONTRIBUTING.md for the full guide (dev environment, conventions, files to keep in sync). The short version:
pnpm run lint, pnpm run typecheck, and pnpm run test:ci before opening a PR.QRING_AUDIT_DIR (directory is created if missing); default is ~/.config/q-ring/audit.jsonl.qring hook:install (uses this packageβs precommit hook when qring is on your PATH).pnpm run plugin:sync copies cursor-plugin/ to ~/.cursor/plugins/local/my-plugin (or pass a custom path).pnpm run plugin:sync:kiro copies kiro-plugin/mcp.json β ~/.kiro/settings/mcp.json, plus steering/ and hooks/ (or pass a project .kiro path). Prefer adding kiro-plugin/ as a Power from the Powers panel instead.pnpm run plugin:sync:claude copies claude-code-plugin/ into the current directory (or pass a project path; add --user to install at ~/.claude/).0600).Security sections (house style since 0.12.0: fix first, then disclose there).AGPL-3.0 - Free to use, modify, and share. Any derivative work or hosted service must release its source code under the same license.
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