MCP server

Inaturalist

io.github.cyanheads/inaturalist-mcp-server

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 10,122 tokens per request once connected10 tools

Source

https://inaturalist.caseyjhand.com/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 10
Token cost: About 10,122 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.inaturalist-mcp-server]
url = "https://inaturalist.caseyjhand.com/mcp"

Gemini CLI

{"mcpServers":{"inaturalist-mcp-server":{"httpUrl":"https://inaturalist.caseyjhand.com/mcp"}}}

Cursor

{"mcpServers":{"inaturalist-mcp-server":{"url":"https://inaturalist.caseyjhand.com/mcp"}}}

VS Code

{"servers":{"inaturalist-mcp-server":{"type":"http","url":"https://inaturalist.caseyjhand.com/mcp"}}}

Antigravity

agy mcp add inaturalist-mcp-server https://inaturalist.caseyjhand.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"inaturalist-mcp-server","server_url":"https://inaturalist.caseyjhand.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"inaturalist-mcp-server","server_url":"https://inaturalist.caseyjhand.com/mcp"}

Tools

inaturalist_find_places ~539 tokens
Resolve a place name to a place id, or list the places containing a map area. Pass q to match a place-name PREFIX, or all four of nelat, nelng, swlat and swlng to list every place covering that box — exactly one of the two, never both. Each result carries the bounding box, place type, and containmen
inaturalist_get_histogram ~1544 tokens
Build a phenology histogram for a taxon in an area — which months, weeks, or years it is recorded in. The default month_of_year interval answers "when does this bloom or appear here" in twelve buckets; the absolute intervals (year, month, week, day, hour) bucket real dates and upstream applies a def
inaturalist_get_leaderboard ~1043 tokens
Rank the most active observers or identifiers for an area, period, and taxon — who knows this place or this group. kind selects which: observers are ranked by how many observations they recorded, identifiers by how many identifications they made. An area is given in exactly one form: place_id, the l
inaturalist_get_observation ~565 tokens
Fetch up to 10 distinct observations by id with their community identification thread — who identified what, whether each identification agrees, and the consensus taxon the community landed on. The whole attempted batch costs one upstream request. Records come back in requested order; remaining dist
inaturalist_get_similar_species ~1037 tokens
List the taxa this one is most often misidentified as, ranked by how many times identifiers made the correction — the field-identification check before committing to a look-alike. Scope it to an area in exactly one form (place_id, the lat/lng/radius triple in kilometres, or a four-corner bounding bo
inaturalist_get_species_counts ~1459 tokens
Rank the distinct species recorded in an area and period, most-observed first — the "what lives here" answer, without paging through individual sightings. An area is given in exactly one form: place_id, the lat/lng/radius triple in kilometres, or a four-corner bounding box. Narrow to a clade by pass
inaturalist_get_taxon ~403 tokens
Fetch a taxon profile: the taxonomic path, per-authority conservation listings, the encyclopedia summary, the photo gallery, immediate children, and observation counts. Resolve a name to a taxon id with inaturalist_resolve_name first. The upstream record is 95 KB for a common species, so it is proje
inaturalist_list_reference ~284 tokens
Look up annotation attributes/values, quality grades, licences, ranks, iconic taxa, and conservation codes before filtering; unknown values can silently return nothing. Conservation codes are the normalised csi filter, distinct from authority-specific taxon status text. With topic controlled_terms a
inaturalist_resolve_name ~516 tokens
Resolve a common or scientific name to a taxon id, or a place, project, or observer name to its id. Returns ranked candidates carrying the identifiers every other tool takes. A miss is a result rather than a failure: found comes back false with guidance naming why. Taxon lookup matches a name PREFIX
inaturalist_search_observations ~2732 tokens
Search georeferenced wildlife sightings by area, date, taxon, quality grade, annotation, conservation status, observer, project, and licence. Returns a projected record per sighting with coordinates, licence, first photo, and identification counts. An area is given in exactly one form — place_id, th

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