Deadbolt
Check Supabase SQL for who can read and write each table: RLS gaps, open policies, grants, fix SQL.
What it does
Deadbolt is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
From the publisher's description, Electra Index matched it to one capability: sql querying. That makes it a candidate for tasks such as query databases in plain language or build data pipelines.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 4h ago (live check)Hosted endpoint
https://deadbolt.clawhard.com/mcpstreamable-http
In Claude Code: claude mcp add --transport http deadbolt https://deadbolt.clawhard.com/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"deadbolt": {
"url": "https://deadbolt.clawhard.com/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 4h agoONLINE Deadbolt answered an MCP connection on 03 Nov 2026 and introduced itself as com.clawhard/deadbolt 1.0.0 (MCP protocol 2025-06-18).
2 tools offered to AI assistants
deadbolt_check_supabase_access· Use when you write, review or are about to apply Supabase / PostgreSQL migration SQL (CREATE TABLE, RLS, CREATE POLICY, GRANT, views, SECURITY DEFINER functions, storage buckets), or when a user asks whether their Supabase data is exposed,deadbolt_catalog_query· Use when you need to check a live Supabase project rather than migration files: returns a read-only SQL query that reads table RLS settings, grants for anon and authenticated, policies, SECURITY DEFINER functions and storage buckets (never
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Tasks it helps with
Share of each task's required capabilities it covers| Query databases in plain language SQL Querying | 50% |
| Build data pipelines SQL Querying | 33% |
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Ready-made AI agents
- $25/mo · free plan · Prices & score →
- Wren AI54$179/mo · free plan · Prices & score →
- $36/mo · free plan · Prices & score →
- On quote · Prices & score →
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://deadbolt.clawhard.com/mcp | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Website | https://deadbolt.clawhard.com | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
Change history
- NEW03 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is Deadbolt still online?
Free alerts · no account▲ 0Do you run Deadbolt? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Questions about Deadbolt
How do I connect Deadbolt?
Use the hosted endpoint https://deadbolt.clawhard.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does Deadbolt offer?
When Electra Index connected on 03 Nov 2026, it listed 2 tools: deadbolt_check_supabase_access, deadbolt_catalog_query. The full list is in "Live check" above.
Is Deadbolt online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 4h ago.
What can I use Deadbolt for?
Based on its description, it is most relevant to: query databases in plain language, build data pipelines.