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HybridS3

Self-hosted S3-compatible object storage server with an MCP interface for AI agents.

Connector by psyb0t · GitHub account verified by the MCP Registry

IndexedWTFPLRemote (HTTP)★ 5
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About

Self-hosted S3-compatible object storage server with an MCP interface for AI agents.

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
5 read · 1 write · 1 delete
Secrets
None asked for
Install scripts
None found
Runs as
Docker image

Tools by what they do 7

Read from the source code; the running server may list different tools.

Read 5 · Look things up without changing anything.

  • download_object
  • list_buckets
  • list_objects
  • object_info
  • presign_url

Write 1 · Create, change, send or run things.

  • upload_object

Delete 1 · Delete, drop, revoke or wipe things.

  • delete_object

Network hosts it talks to 3

  • github.com · found in code
  • glama.ai · found in code
  • s3.amazonaws.com · found in code

Tools (7)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • delete_objectcan change or delete data

    Delete an object from a bucket. Args: bucket: The bucket name. key: The object key (path). auth_key: The bucket key or master key for authentication.

  • download_objectread-only

    Download an object from a bucket. Args: bucket: The bucket name. key: The object key (path). auth_key: The bucket key or master key. Not needed for public buckets. encoding: "utf-8" (default) returns text, "base64" returns base64-encoded binary.

  • list_bucketsread-only

    List buckets accessible with the given key. Pass the master key to list all configured buckets. Pass a bucket key to list only that bucket. Args: auth_key: The master key (lists all buckets) or a bucket key (lists that bucket only).

  • list_objectsread-only

    List objects in a bucket. Args: bucket: The bucket name. auth_key: The bucket key or master key. Not needed for public buckets. prefix: Filter by key prefix (e.g. "images/" to list only images/). max_keys: Maximum number of objects to return (default 100, max 1000).

  • object_inforead-only

    Get metadata about an object without downloading it. Args: bucket: The bucket name. key: The object key (path). auth_key: The bucket key or master key. Not needed for public buckets.

  • presign_urlread-only

    Generate an S3-compatible presigned URL for an object. Returns a proper AWS Sig V4 presigned URL. The private key signs the URL but never appears in it. Anyone with the URL can perform the named method on the object until it expires. Args: bucket: The bucket name. key: The object key (path). auth_key: The bucket key or master key for authentication. method: HTTP verb the URL grants — "GET" (default) or "PUT". expires: Seconds until the URL expires (default 3600, max 604800 = 7 days). base_url: Base URL for the generated link (e.g. "http://host:8080"). host: Hostna…

  • upload_object

    Upload content to an object in a bucket. Args: bucket: The bucket name. key: The object key (path). Supports nested paths like "dir/file.txt". content: The content to upload. For binary data, base64-encode it and set encoding="base64". auth_key: The bucket key or master key for authentication. content_type: MIME type. Auto-detected from content and file extension if not provided. encoding: "utf-8" (default) for text, "base64" for binary data.

Signals

Stars
5
Forks
1
Open issues
0
Last commit
Oct 19, 2026 (9 days ago)
Last release
Aug 1, 2026 (2 months ago)
Last package publish
Oct 17, 2026 (11 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name
io.github.psyb0t/hybrids3
Version
0.3.8
Auth
No auth
Packages
oci docker.io/psyb0t/hybrids3:v0.3.8
License
WTFPL
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from psyb0t

Cite this page

HybridS3 MCP server. Agent Mart. https://agentmart.dev/connectors/psyb0t-hybrids3 (last updated 2026-10-24)