MCP.Market

Openaq MCP server

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by cyanheads·io.github.cyanheads/openaq-mcp-server·v0.4.1·2 stars
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Find air-quality stations and read pollutant observations from government monitors via OpenAQ v3.

C64/100grade C
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Safety scan
C64/100

full report

Adoption
Growing

2 stars1.7k downloads/wk

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

Openaq tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-01 · same rubric, same numbers if you re-run it

1 high
  • Code scan40 source files scanned; 40 source files scanned25/25
  • Live reliabilityremote unreachable: TypeError: fetch failed0/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 5 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highRemote endpoint did not respondreliability.unreachable

    TypeError: fetch failed

Overall 64/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Openaq compares

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

Safety score
64/100
higher than 19% of 48,255 servers
Uptime
0%
of our recent checks; the typical remote server answers 100%
Response time
49 ms
faster than 92% of 30,031 servers
GitHub stars
2
more than 75% of 28,688 servers
Downloads a week
1,702
more than 95% of 12,191 servers with a package

Release history: 5 versions in the registry since 2026-08-25, latest 2026-09-26, typically one every 3 days.

Install Openaq in Claude Code, Cursor or VS Code

claude mcp add --transport http openaq-mcp-server https://openaq.caseyjhand.com/mcp
Add to Cursor

What the publisher says

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

@cyanheads/openaq-mcp-server Find air-quality monitoring stations, read latest sensor values, and pull historical pollutant series via MCP. STDIO or Streamable HTTP. 7 Tools (2 opt-in) • 2 Resources

Public Hosted Server: https://openaq.caseyjhand.com/mcp

Overview

Measured air quality from the OpenAQ v3 API — physical-sensor observations from government reference monitors and research-grade sensors worldwide. Find monitoring stations, read current values, and pull historical pollutant series from any MCP client. Runs as a stdio process, a local Streamable HTTP server, or the public hosted endpoint above.

Tools

Resources

Shortened. The full README is on GitHub.

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

Grade history

  • 2026-10-01downgradeA → Cscore 64: Remote endpoint did not respond

Openaq: common questions

Is Openaq MCP server safe?
With care: it is graded C, so read the findings first (64/100). Read the Openaq safety report
How do I install Openaq?
It runs remotely at openaq.caseyjhand.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 Openaq need an API key?
Yes. The registry entry asks for OPENAQ_API_KEY.
Is Openaq maintained?
The last commit was 38 days ago (2026-09-26). The latest release is v0.4.1.
Is Openaq up?
0% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Openaq compare with other MCP servers?
safety score 64/100 (higher than 19% of 48,255 servers); uptime 0% (of our recent checks; the typical remote server answers 100%); response time 49 ms (faster than 92% of 30,031 servers). Full comparison.

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