Inaturalist MCP server

by cyanheads·io.github.cyanheads/inaturalist-mcp-server·v0.1.2

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Search iNaturalist sightings, identification threads, phenology, and look-alike species.

A92/100grade A

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

Inaturalist tools

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

Not scanned yet. New registry listings are scanned within a day of import.

Install directly

claude mcp add --transport http inaturalist-mcp-server https://inaturalist.caseyjhand.com/mcp

Add to Cursor

Inaturalist: common questions

Is Inaturalist MCP server safe?: Yes, by our scan: it is graded A (92/100). Read the Inaturalist safety report
How do I install Inaturalist?: It runs remotely at inaturalist.caseyjhand.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Inaturalist need an API key?: No secret keys are declared. It reads 14 settings from the environment.
Is Inaturalist maintained?: The last commit was in the last day (2026-09-20). The latest release is v0.1.2.
Is Inaturalist up?: 100% of our last 1 checks got an answer. We check remote servers about four times a day.
What can I use instead of Inaturalist?: Servers from other publishers that do the same job: Apple Mail MCP server and Naumu MCP server.

Alternatives to Inaturalist

Same job from other publishers: the closest match first, then the best rated.

Apple Mail
Search, read and act on Apple Mail — threads, attachments, body search, writes off by default
not reviewed
Growing
A
Naumu
Search, extend, and act on your team's Naumu knowledge graph: notes, threads, and nodes.
not reviewed
Growing
A

Inaturalist vs Apple Mail Inaturalist vs Naumu

Run it through the gateway

With the gateway added, ask your agent for it by name:

agent prompt

call io.github.cyanheads/inaturalist-mcp-server → <tool>

Free per call. Metered, capped by your key, logged for reliability.

Add the gateway (gw.mcp.market)

Rating: —
Safety grade: A · 92/100
Stars: 0
Downloads/wk: –
Price: Free
Licence: Apache-2.0
Transport: Remote · mixed
Uptime: 100% · 1/1 checks
Version: 0.1.2
Category: Web search
Last release: 2026-09-20

Credentials it needs

MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
INATURALIST_USER_AGENTUser-Agent sent on every request to api.inaturalist.org. Defaults to the package name, its version, and the repository URL. Keep a contact URL in any override — the published terms ask for identifiable clients.
INATURALIST_MIN_REQUEST_INTERVAL_MSMinimum spacing between outbound request starts, in milliseconds. The default holds the sustained rate near 54 requests per minute, under the 60 the upstream asks for and well under its 100 ceiling.
INATURALIST_MAX_CONCURRENT_REQUESTSMaximum outbound requests in flight. Separate from the start interval: spacing bounds the sustained rate, this bounds the burst so one slow call does not stall the lane.
INATURALIST_DAILY_REQUEST_BUDGETOutbound requests allowed per UTC day, counted in-process. The default sits under the 10,000 per day the upstream asks for, and exhaustion fails loudly rather than degrading silently.
MCP_HTTP_HOSTThe hostname for the HTTP server.
MCP_HTTP_PORTThe port to run the HTTP server on.
MCP_HTTP_ENDPOINT_PATHThe endpoint path for the MCP server.
MCP_AUTH_MODEAuthentication mode to use: 'none', 'jwt', or 'oauth'.
MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
INATURALIST_USER_AGENTUser-Agent sent on every request to api.inaturalist.org. Defaults to the package name, its version, and the repository URL. Keep a contact URL in any override — the published terms ask for identifiable clients.
INATURALIST_MIN_REQUEST_INTERVAL_MSMinimum spacing between outbound request starts, in milliseconds. The default holds the sustained rate near 54 requests per minute, under the 60 the upstream asks for and well under its 100 ceiling.
INATURALIST_MAX_CONCURRENT_REQUESTSMaximum outbound requests in flight. Separate from the start interval: spacing bounds the sustained rate, this bounds the burst so one slow call does not stall the lane.
INATURALIST_DAILY_REQUEST_BUDGETOutbound requests allowed per UTC day, counted in-process. The default sits under the 10,000 per day the upstream asks for, and exhaustion fails loudly rather than degrading silently. The counter is per process and resets on restart.

Endpoint

https://inaturalist.caseyjhand.com/mcp

streamable-http

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