Inaturalist MCP Server

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How to connect

Add it to any MCP client that supports remote servers.

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

10 tools

• inaturalist_list_reference

  Decode the vocabularies the other iNaturalist tools take as input: annotation attributes and values, quality grades, license codes, taxonomic ranks, iconic taxa, and IUCN conservation-status codes. An unrecognized filter value is not rejected upstream — it silently returns…

• inaturalist_resolve_name

  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…

• inaturalist_find_places

  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…

• inaturalist_search_observations

  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…

• inaturalist_get_observation

  Fetch up to 10 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 batch costs one upstream request, so resolving ten ids here is far cheaper than ten…

• inaturalist_get_species_counts

  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…

• inaturalist_get_histogram

  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…

• inaturalist_get_leaderboard

  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…

• inaturalist_get_similar_species

  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…

• inaturalist_get_taxon

  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…

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