> For the complete documentation index, see [llms.txt](https://docs.decentraland.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.decentraland.org/apis/apis/catalyst/archipelago.md).

# Archipelago

This service is in charge of clustering users according to their position and assigning a connection string that will allow the user to connect to an specifig transport.

## List of islands

> Retrieves the list of communication islands in the server with details about the peers present in each island.

```json
{"openapi":"3.0.3","info":{"title":"API Specification for the Decentraland Catalyst Server (BETA)","version":"1.0"},"tags":[{"name":"Archipelago","description":"This service is in charge of clustering users according to their position and assigning a connection string that will allow the user to connect to an specifig transport."}],"servers":[{"url":"https://peer.decentraland.zone","description":"Catalyst Development instance"},{"url":"https://peer-testing.decentraland.org","description":"Catalyst Staging instance"},{"url":"https://peer.decentraland.org","description":"First production Catalyst node"}],"paths":{"/comms/islands":{"get":{"operationId":"getIslands","summary":"List of islands","tags":["Archipelago"],"description":"Retrieves the list of communication islands in the server with details about the peers present in each island.","responses":{"200":{"description":"List of Islands","content":{"application/json; charset=utf-8":{"schema":{"$ref":"#/components/schemas/islands"}}}}}}}},"components":{"schemas":{"islands":{"type":"object","properties":{"ok":{"type":"boolean"},"islands":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string"},"peers":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string"},"address":{"type":"string"},"parcel":{"type":"array","items":{"type":"number"}},"position":{"type":"array","items":{"type":"number"}},"lastPing":{"type":"number"},"preferedIslandId":{"type":"string"}}}},"maxPeers":{"type":"number"},"center":{"type":"array","items":{"type":"number"}},"radius":{"type":"number"}}}}}}}}}
```

## Island Details

> Retrieve information about the specified islandId

```json
{"openapi":"3.0.3","info":{"title":"API Specification for the Decentraland Catalyst Server (BETA)","version":"1.0"},"tags":[{"name":"Archipelago","description":"This service is in charge of clustering users according to their position and assigning a connection string that will allow the user to connect to an specifig transport."}],"servers":[{"url":"https://peer.decentraland.zone","description":"Catalyst Development instance"},{"url":"https://peer-testing.decentraland.org","description":"Catalyst Staging instance"},{"url":"https://peer.decentraland.org","description":"First production Catalyst node"}],"paths":{"/comms/islands/{islandId}":{"get":{"operationId":"getIsland","summary":"Island Details","tags":["Archipelago"],"description":"Retrieve information about the specified islandId","parameters":[{"in":"path","name":"islandId","required":true,"schema":{"type":"string"},"description":"ID of the Island. You can search for the list of islands using the /comms/islands endpoint."}],"responses":{"200":{"description":"Island details","content":{"application/json; charset=utf-8":{"schema":{"$ref":"#/components/schemas/islandId"}}}}}}}},"components":{"schemas":{"islandId":{"type":"object","properties":{"id":{"type":"string"},"peers":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string"},"address":{"type":"string"},"parcel":{"type":"array","items":{"type":"number"}},"position":{"type":"array","items":{"type":"number"}},"lastPing":{"type":"number"},"preferedIslandId":{"type":"string"}}}},"maxPeers":{"type":"number"},"center":{"type":"array","items":{"type":"number"}},"radius":{"type":"number"}}}}}}
```

## List of peers

> Retrieves the list peers in the server with details about their positions and islands.

```json
{"openapi":"3.0.3","info":{"title":"API Specification for the Decentraland Catalyst Server (BETA)","version":"1.0"},"tags":[{"name":"Archipelago","description":"This service is in charge of clustering users according to their position and assigning a connection string that will allow the user to connect to an specifig transport."}],"servers":[{"url":"https://peer.decentraland.zone","description":"Catalyst Development instance"},{"url":"https://peer-testing.decentraland.org","description":"Catalyst Staging instance"},{"url":"https://peer.decentraland.org","description":"First production Catalyst node"}],"paths":{"/comms/peers":{"get":{"operationId":"getPeers","summary":"List of peers","tags":["Archipelago"],"description":"Retrieves the list peers in the server with details about their positions and islands.","responses":{"200":{"description":"List of Peers","content":{"application/json; charset=utf-8":{"schema":{"$ref":"#/components/schemas/peers"}}}}}}}},"components":{"schemas":{"peers":{"type":"object","properties":{"ok":{"type":"boolean"},"peers":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string"},"address":{"type":"string"},"parcel":{"type":"array","items":{"type":"number"}},"position":{"type":"array","items":{"type":"number"}},"lastPing":{"type":"number"}}}}}}}}}
```


---

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