MCP.Market

SavePropTax MCP server

online · 100% uptime
by saveproptax.com·com.saveproptax/saveproptax·v1.0.0
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Free check of a California home for a Proposition 8 property tax reduction, plus owner filing.

A87/100grade A
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Safety scan
A87/100

full report

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If you have run it, two minutes of your experience saves the next person an afternoon.

SavePropTax tools (3)

write = sends, deletes, buys or posts
  • check_property_tax_savingsFree

    Free check of whether a California home qualifies for a Proposition 8 decline-in-value property tax reduction. Returns a status (qualifies, fair_assessment, not_enough_data, not_residential, window_closed, county_not_served, already_filed, address_not_found, needs_more_info, busy), the current assessment, our opinion of value from recent comparable sales, and the estimated annual savings. When the property qualifies, the result includes a continueToken for start_filing. Checking is free and can only ever lower a tax bill, never raise it.

  • get_filing_statusFree

    Coarse status of a filing by document id: awaiting_signature, awaiting_payment, filed, delivered, or unknown. Returns no personal information, addresses, or amounts.

  • start_filingFree

    Start a county filing for a property that qualified in check_property_tax_savings. Prepares the county's own review form and emails a signing link to the OWNER'S email address. The link is never returned here: the owner personally reviews, signs, and pays a flat $29 before anything is filed. Requires the continueToken from a qualifying check (valid 24 hours).

Public scan report

scanner v0.1.10 · 2026-11-02 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 625ms20/20
  • Tool poisoning3 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 75 days ago12/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10
Overall 87/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How SavePropTax compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
87/100
higher than 73% of 48,255 servers
Tools
3
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
180 ms
faster than 67% of 30,031 servers

What its tools let an agent do: 2 read · 1 run or deploy

Install SavePropTax in Claude Code, Cursor or VS Code

claude mcp add --transport http saveproptax https://saveproptax.com/mcp
Add to Cursor

What the publisher says

From the SavePropTax repository's README, as published. We do not edit it. Read it on GitHub

SavePropTax MCP server

A remote MCP server and an open HTTP API for California property tax appeals.

Ask it whether a home is over-assessed. If recent comparable sales support a lower value, it prepares the county's own Proposition 8 decline-in-value review form and emails a signing link to the homeowner. The owner signs and pays a flat $29. Checking is free, keyless, and can only ever lower a tax bill, never raise it.

There is nothing to install. The server is hosted:

https://saveproptax.com/mcp

Streamable HTTP, no authentication, stateless.

Add it to a client

Claude: Settings, then Connectors, then Add custom connector, and paste the URL above.

ChatGPT: Settings, then Connectors (or Apps), then add an MCP server by URL, where your plan supports custom connectors.

Claude Code:

claude mcp add --transport http saveproptax https://saveproptax.com/mcp

Any MCP client: point a streamable-HTTP transport at the URL. No token.

Tools

The rule that shapes everything

An agent never handles the signature or the money. The signing link goes to the owner's inbox. The owner reviews the county's own form, signs it, and pays. The worst an anonymous caller can do is spend a free check and send a real homeowner a legitimate link to their own property.

HTTP API

The same capability without MCP. Keyless.

curl -s https://saveproptax.com/api/agent/check \
  -H 'Content-Type: application/json' \
  -d '{"address": "123 Main St, Walnut Creek"}'

A qualifying response:

{
  "status": "qualifies",
  "message": "This property qualifies: recent comparable sales support a value of $915,000 against the $1,024,000 assessment, an estimated $1,204 per year in tax savings; filing costs a flat $29 and the owner signs and pays.",
  "property": { "address": "123 MAIN ST, WALNUT CREEK CA", "county": "Contra Costa" },
  "estimate": { "assessment": 1024000, "opinion": 915000, "estimatedAnnualSavings": 1204 },
  "filing": { "feeUsd": 29, "deadline": "November 30, 2026" },
  "continueToken": "eyJ...valid 24 hours",
  "cached": false,
  "checkedAt": "2026-08-19T18:00:00.000Z"
}

Then hand the token and the owner's details to prepare:

curl -s https://saveproptax.com/api/agent/prepare \
  -H 'Content-Type: application/json' \
  -d '{
    "continueToken": "eyJ...",
    "ownerName": "Jane Homeowner",
    "ownerPhone": "925 555 0100",
    "ownerEmail": "jane@example.com"
  }'
{ "docId": "d0c1d2...", "status": "awaiting_signature",
  "statusUrl": "https://saveproptax.com/api/agent/status?doc=d0c1d2...",
  "ownerEmailSent": true }

Poll the status endpoint for progress:

curl -s 'https://saveproptax.com/api/agent/status?doc=d0c1d2...'

Every status to handle

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-11-02restoreB → Ascore 87

SavePropTax: common questions

Is SavePropTax MCP server safe?
Yes, by our scan: it is graded A (87/100). Read the SavePropTax safety report
How do I install SavePropTax?
It runs remotely at saveproptax.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does SavePropTax need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is SavePropTax maintained?
The last commit was 77 days ago (2026-08-19). The latest release is v1.0.0.
Is SavePropTax up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does SavePropTax compare with other MCP servers?
safety score 87/100 (higher than 73% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.