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RedFlagLease MCP server

Which MCP servers are RedFlagLease's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-28

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Whose server it is
  • Registry namecom.redflaglease/lease-checkerverified in the MCP registry

The registry name sits under redflaglease.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-28
  • Stateanswerschecked 2026-10-28
  • Tools2
  • Server calls itselfredflaglease
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 545 ms.

Should an agent connect itNot proven either way yet
  • Its tools do Upload a lease and see clauses flagged against state law; Check the security deposit and late fee terms against state limits, but not Draft a negotiation email to send the landlord about flagged clauses.
  • Checked on 6 of the 7 days it takes to judge reliability.

Once connected

  • For "Upload a lease and see clauses flagged against state law", the likely first call is check_lease.
  • For "Check the security deposit and late fee terms against state limits", the likely first call is tenant_law.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 6, the first on 2026-10-28
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 6 so far
  • What an agent can do with it2 of 3 use cases
  • Answeredmeasuring6 of the 7 daily checks it takes to print a share
  • Median first answer557 ms
  • Space in an agent's context≈ 358 tokensthe definitions of all its tools (2), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results0 of 2 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · Upload a lease and see clauses flagged against state law
  • can do · Check the security deposit and late fee terms against state limits
  • cannot · Draft a negotiation email to send the landlord about flagged clauses

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers2 tools · read 2026-10-28
  • tenant_law

    Verified landlord-tenant rules for one US state, checked against the official statutes: security deposit limit and return deadline, late-fee rules, landlord entry notice, notice to end a month-to-month tenancy, rent-increase notice…

  • check_lease

    Scan a US residential lease for risky, unusual or likely unenforceable clauses under that state's tenant law. Pass the full lease text. Returns every flagged clause with its severity, the risk and the state rule/citation, plus a link to…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "lease-checker": {
      "type": "http",
      "url": "https://redflaglease.com/api/leasecheck/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http redflaglease https://redflaglease.com/api/leasecheck/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://redflaglease.com/api/leasecheck/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.