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io.github.squidcode/tapwatermap

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io.github.squidcode/tapwatermap

squidcode

Query US tap-water quality from the EPA's SDWIS records — by city, system, or contaminant.

Developer ToolsIs io.github.squidcode/tapwatermap down?Alternatives

11 of 22 checks passed

  • Handshake
  • Tools listed
  • Updated recently

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Connect to server
Median latency
71 ms
Uptime, 30 days
Not measured
Last checked

Measurement details

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 71 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name tapwatermap.

  • Pass
    Lists tools

    tools/list returned 10 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 71 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 71 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    10 of 17 parameters have a description (59%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Fail
    Repo owner matches

    The GitHub repository owner does not match the namespace login.

  • Pass
    Recently updated

    Updated 2026-06-25T03:41:41.707162Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Tools

  • compare_cities

    Compare the EPA records of several cities side by side. Pass cities as 'City, ST' strings.

    Measured

  • coverage_stats

    What TapWaterMap covers: states, cities, total EPA violation records, and the data quarter/date.

    Measured

  • explain_contaminant

    Plain-English explanation of an EPA contaminant by name or code: the EPA name, whether the EPA classifies it as health-based, and how often it appears in our records. Not medical advice.

    Measured

  • fetch

    Fetch the full plain-English EPA tap-water record for a city id (e.g. 'vt/burlington') returned by `search`. (ChatGPT/Deep-Research compatible.)

    Measured

  • find_cities

    Filter/rank cities across the dataset — e.g. cities in TX with open health-based violations, or cities with a specific contaminant. Returns ranked matches.

    Measured

  • get_city_water

    The core tool: what the EPA has on record for a city's tap water — the active community water systems serving it, populations, sources, and violations (contaminant, health-based or not, dates, status, level vs limit when recorded). Plain-English, sourced, never a safety verdict.

    Measured

  • get_water_system

    EPA record for a single water system by its PWSID (e.g. 'VT0005053'): name, population served, source, and violations.

    Measured

  • list_state_cities

    List all covered cities in a state (with violation counts).

    Measured

  • search

    Search TapWaterMap for US cities by name. Returns matching cities with an id you can pass to `fetch`. (ChatGPT/Deep-Research compatible.)

    Measured

  • search_cities

    Find covered US cities by name, optionally within a state. Returns counts + the page URL for each.

    Measured

Probe history

  • ok71 ms10 tools

Status and uptime

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MCP Heartbeat badge

Markdown

[![MCP Heartbeat](https://mcpheartbeat.com/badge/io.github.squidcode/tapwatermap.svg)](https://mcpheartbeat.com/s/io.github.squidcode/tapwatermap)

HTML

<a href="https://mcpheartbeat.com/s/io.github.squidcode/tapwatermap"><img alt="MCP Heartbeat" src="https://mcpheartbeat.com/badge/io.github.squidcode/tapwatermap.svg"></a>

Uptime markdown

[![MCP Heartbeat uptime](https://mcpheartbeat.com/badge/io.github.squidcode/tapwatermap.svg?kind=uptime)](https://mcpheartbeat.com/s/io.github.squidcode/tapwatermap)

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Connect to this server

Claude Code

claude mcp add --transport http io-github-squidcode-tapwatermap https://mcp.tapwatermap.com/mcp

Cursor .cursor/mcp.json

{
  "mcpServers": {
    "io-github-squidcode-tapwatermap": {
      "url": "https://mcp.tapwatermap.com/mcp"
    }
  }
}

VS Code .vscode/mcp.json

{
  "servers": {
    "io-github-squidcode-tapwatermap": {
      "type": "http",
      "url": "https://mcp.tapwatermap.com/mcp"
    }
  }
}