Connect Tapwatermap and your agent gets 10 tools, among them compare_cities, coverage_stats, explain_contaminant. It answers at https://mcp.tapwatermap.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, succeeded.
Query US tap-water quality from the EPA's SDWIS records — by city, system, or contaminant.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
compare_cities | Compare the EPA records of several cities side by side. Pass cities as 'City, ST' strings. Inputs: cities |
coverage_stats | What TapWaterMap covers: states, cities, total EPA violation records, and the data quarter/date. |
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. Inputs: contaminant |
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.) Inputs: id |
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. Inputs: state, contaminant, healthBasedOnly, minPopulation, openViolationsOnly, limit |
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-En Inputs: city, state |
get_water_system | EPA record for a single water system by its PWSID (e.g. 'VT0005053'): name, population served, source, and violations. Inputs: pwsid |
list_state_cities | List all covered cities in a state (with violation counts). Inputs: state |
search | Search TapWaterMap for US cities by name. Returns matching cities with an id you can pass to `fetch`. (ChatGPT/Deep-Research compatible.) Inputs: query |
search_cities | Find covered US cities by name, optionally within a state. Returns counts + the page URL for each. Inputs: query, state, limit |
Every block below points at https://mcp.tapwatermap.com/mcp. Pick your client and copy.
claude mcp add --transport http tapwatermap https://mcp.tapwatermap.com/mcp
{
"mcpServers": {
"tapwatermap": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.tapwatermap.com/mcp"]
}
}
}{
"mcpServers": {
"tapwatermap": {
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"servers": {
"tapwatermap": {
"type": "http",
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"context_servers": {
"tapwatermap": {
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"mcpServers": {
"tapwatermap": {
"serverUrl": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"mcpServers": {
"tapwatermap": {
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}name: Tapwatermap
version: 0.0.1
schema: v1
mcpServers:
- name: Tapwatermap
type: streamable-http
url: https://mcp.tapwatermap.com/mcp{
"mcpServers": {
"tapwatermap": {
"httpUrl": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"mcpServers": {
"tapwatermap": {
"type": "http",
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}{
"mcpServers": {
"tapwatermap": {
"url": "https://mcp.tapwatermap.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.tapwatermap.com%2Fmcp&type=streamable_http&id=tapwatermap&name=Tapwatermap
It answered our last check on 24 October 2026 in 132 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
10, as returned by the server's own tools/list on 21 September 2026: compare_cities, coverage_stats, explain_contaminant, fetch, find_cities, get_city_water, get_water_system, list_state_cities, and 2 more.
It answered our last check on 24 October 2026 in 132 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.tapwatermap.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.squidcode. Endpoint host: mcp.tapwatermap.com. ARD identifier: urn:air:io.github.squidcode:mcp:tapwatermap.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.