Saveproptax
SavePropTax MCP server
一个用于加州房产税申诉的远程 MCP 服务器和开放 HTTP API。
询问它某套房屋是否被高估。如果近期可比销售支持更低的价值,它会准备该县自己的 Proposition 8 价值下降复核表,并向房主发送签名链接的邮件。房主签名并支付固定费用 $29。检查免费、无需密钥,而且只会降低税单,绝不会提高。
无需安装任何东西。服务器托管于:
https://saveproptax.com/mcpStreamable HTTP,无需认证,无状态。
添加到客户端
Claude: 设置,然后连接器,然后添加自定义连接器,并粘贴上面的 URL。
ChatGPT: 设置,然后连接器(或应用),然后按 URL 添加 MCP 服务器,前提是你的套餐支持自定义连接器。
Claude Code:
claude mcp add --transport http saveproptax https://saveproptax.com/mcp任何 MCP 客户端: 将 streamable-HTTP 传输指向该 URL。无需令牌。
Related MCP server: MCP Real Estate Intelligence Server
工具
工具 | 参数 | 功能 |
|
| 免费检查一套加州房屋。返回状态、当前评估值、基于近期可比销售的估值意见以及预计年节省额。符合条件的结果带有 |
|
| 准备县表格并向房主发送签名链接的邮件。该链接绝不会返回给客户端。 |
|
| 仅返回粗略状态: |
塑造一切的原则
代理绝不处理签名或资金。 签名链接发送到房主的收件箱。房主审阅县自己的表格、签名并付款。匿名调用者最坏能做的就是花一次免费检查,并向真实房主发送一个指向其自己房产的合法链接。
HTTP API
无需 MCP 即可获得相同能力。无需密钥。
curl -s https://saveproptax.com/api/agent/check \
-H 'Content-Type: application/json' \
-d '{"address": "123 Main St, Walnut Creek"}'符合条件的响应:
{
"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"
}然后将令牌和房主详细信息交给 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 }轮询状态端点以获取进度:
curl -s 'https://saveproptax.com/api/agent/status?doc=d0c1d2...'需要处理的每种状态
状态 | 含义 |
| 可比销售支持一个可辩护的更低价值,节省额超过每年 $500,且该县的窗口期开放。唯一携带 |
| 销售数据不支持今年低于当前评估值的价值。 |
| 近期紧密匹配的可比销售太少,无法进行可辩护的申报。 |
| 该地块的县记录不是住宅用途。 |
| 该县的复核窗口已关闭; |
| 尚未覆盖的加州县。 |
| 该房产今年已提交过复核请求。 |
| 请包含城市后重试。 |
| 消息说明缺少什么,例如单元号。 |
| 负载较重:新检查暂时暂停,缓存答案仍可服务。请稍后重试。 |
每条 message 都是一句可转述的解释,你可以按原样传递给用户。
可选密钥
curl -s https://saveproptax.com/api/agent/register \
-H 'Content-Type: application/json' \
-d '{"agentName": "MyAssistant", "contactEmail": "dev@example.com"}'立即返回密钥,无需审批步骤。将其作为 x-agent-key 标头发送,可获得双倍的新检查配额和具名归属。匿名使用完全正常;注册是身份标识,而非权限。
速率限制
每地址缓存,24 小时。 重复检查即时完成,不花费我们任何成本,并标记为
cached: true返回。缓存答案永不受速率限制。每小时新检查预算。 新检查会购买真实记录和销售数据,因此共享一个每小时池。负载较高时,新检查返回
busy,而缓存答案仍可服务。流水线绝不会降级到更便宜的估值方法;它只会延迟。Prepare 门控。 需要来自真实检查的令牌,并且每个房主收件箱每天最多发送三个签名链接。
覆盖范围
阿拉米达、康特拉科斯塔、洛杉矶、马林、纳帕、普莱瑟、里弗赛德、萨克拉门托、圣贝尼托、圣贝纳迪诺、旧金山、圣华金、圣马特奥、圣克拉拉、圣克鲁斯、索拉诺、萨特和约洛县。窗口期按县季节性变化;当前截止日期见 https://saveproptax.com/counties.html。
更多
llms.txt:https://saveproptax.com/llms.txt
注册表元数据:
server.json合作与批量安排:support@saveproptax.com
SavePropTax 根据公共记录和县自己的表格准备复核请求;房主审阅并签名。我们不是律师事务所,此处任何内容均不构成法律或税务建议。减免完全由县评估官决定。
许可证
MIT。参见 LICENSE。许可证涵盖本仓库的内容;托管服务受 https://saveproptax.com/legal.html 的条款约束。
本地运行(stdio)
托管服务器无需安装。对于仅支持 stdio 的 MCP 客户端,本仓库附带一个无依赖的桥接器(Node 18+):
{
"mcpServers": {
"saveproptax": {
"command": "node",
"args": ["bridge.js"]
}
}
}或使用 Docker:docker build -t saveproptax-mcp . && docker run -i saveproptax-mcp。
内省在本地应答;工具调用转发到 saveproptax.com/mcp。
Maintenance
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