Fastio

Fastio MCP Skill Package

Workspaces for agentic teams — where agents collaborate with other agents and with humans. Upload outputs, create branded shares, query documents with built-in AI, coordinate with peer agents, and hand everything off to a human when the job is done.

What is Fastio?

Fastio gives AI agents a complete file management and collaboration platform through the Model Context Protocol (MCP). No infrastructure to manage, no SDKs to wire up — connect, authenticate, and call tools.

Problem	Solution
Nowhere professional to put agent outputs	Branded workspaces with inline preview for 10+ formats
Sharing files with humans is awkward	Purpose-built shares (Send / Receive / Exchange) with passwords, expiration, and branding
Collecting files from humans is harder	Receive shares let humans upload directly into your workspace
Understanding document contents	Built-in AI (Ripley) reads, summarizes, and answers questions about your files with citations
Building a RAG pipeline from scratch	Enable workspace intelligence and files are automatically indexed and queryable
Two agents colliding on the same work	Agent Intents — announce what you're working on so peers see the conflict before it happens
Handing a project off to a human	One-step ownership transfer — the human gets the org, the agent keeps admin access

Connecting

Tool set	Endpoint (Streamable HTTP)
Named mode — one tool per area	`https://mcp.fast.io/mcp/tools`
Code mode — search the API and call it	`https://mcp.fast.io/mcp/code`

The URL fixes the tool set for the session. A client without an Authorization header signs in with OAuth in the browser; a client can instead send Authorization: Bearer <api-key>. The earlier URLs https://mcp.fast.io/mcp, /mcp/oauth, /mcp/key and /sse keep working; on those the tool set is chosen from the client's clientInfo.name.

Two Modes

The server exposes one of two tool sets, chosen by the URL (see Connecting):

Named mode (35 tools; 39 where e-signature and cloud import are enabled) — action-routed tools covering the full REST surface. Each area has a read tool (storage) and a _manage tool for its create, update and delete actions (storage_manage).
Code mode (8 tools) — a lightweight set (auth, auth_manage, upload, upload_manage, search, execute, execute_manage, how-to) for headless coding agents (e.g. Claude Code, Cursor, Codex). search discovers content or API endpoints; execute makes structured authenticated GET calls and execute_manage the writes.

Tools (Named mode)

Each tool covers a domain and uses an action parameter to select the operation. Reads are on the domain tool (org), writes on its _manage sibling (org_manage); find, download and how-to are read-only and have no sibling. Every tool supports action: "describe" (no auth required), which returns the authoritative per-action parameter reference.

Tool	Domain
`auth` / `auth_manage`	Sign-in/sign-up, 2FA, API key management, OAuth/PKCE sessions
`user` / `user_manage`	Current user profile, contacts, invitations, user assets, account eligibility
`org` / `org_manage`	Organization CRUD, members, invitations, assets, org discovery, ownership transfer
`workspace` / `workspace_manage`	Workspace lifecycle & settings, archive, members, notes, share import, async-job status
`share` / `share_manage`	Share CRUD (Send / Receive / Exchange), archiving, passwords, members, AI titling
`fileshare` / `fileshare_manage`	Durable single-file share links, the replacement for QuickShare (access tiers, password, expiry, per-user grants, version history)
`storage` / `storage_manage`	Files & folders: list/search/move/copy/rename/delete/restore, versions, locking, previews, per-node metadata
`metadata` / `metadata_manage`	Workspace metadata vocabulary, lexical value search, combined metadata + content matching, extraction eligibility
`find`	Unified search across a workspace or share — one query, results grouped into files, metadata, and comments
`upload` / `upload_manage`	File uploads: single-call streaming, chunked, bulk batch, web import from URLs
`download`	Pre-authenticated download / ZIP URLs (MCP cannot stream binary directly)
`ai` / `ai_manage` (Ripley)	Ask a natural-language question about workspace/share content and get a cited answer; manages chat threads
`comment` / `comment_manage`	Comments on files, with optional anchoring to regions/timestamps/pages
`event` / `event_manage`	Audit & activity log, AI activity summaries, activity polling, per-member dashboard feed
`member` / `member_manage`	Member management for workspaces and shares (roles, ownership transfer, join/leave)
`invitation` / `invitation_manage`	Invitation management for workspaces and shares
`asset` / `asset_manage`	Branding asset upload/list/read/delete for orgs, workspaces, shares, users
`intent` / `intent_manage`	Agent Intents — announce what you're working on in a workspace so peers see a collision before it happens
`how-to`	Built-in product help — ask "how do I…" questions about Fastio (explain-only)

The `how-to` tool

The guide and tool descriptions stay lean by deferring product how-tos to a built-in help tool. Call how-to action=ask question="..." whenever the right approach on Fastio isn't obvious (branded shares, metadata extraction, coordinating with another agent, ownership transfer). It returns the canonical, product-aware sequence of steps.

Explain-only — it returns guidance; it never creates, updates, or deletes anything.
Available in both modes (answers are phrased as named-tool calls or execute/execute_manage calls to match).

Resources

Read via resources/list / resources/read:

URI	Description
`skill://guide`	This package's full agent guide (`SKILL.md`)
`session://status`	Current authentication state
`resource://status`	Server identity, version, and transport endpoints (no auth)
`download://workspace/{workspace_id}/{node_id}`	Inline file content from a workspace
`download://share/{share_id}/{node_id}`	Inline file content from a share
`download://fileshare/{fileshare_id}`	Inline file content from a File Share link

The download:// resources return content inline up to 100 KB — UTF-8 text for textual types, base64 otherwise. Above that they return a fallback download URL instead; for anything larger use the download tool's file-url action.

No MCP prompts are registered.

Authentication

Four ways to authenticate:

Agent account — auth_manage action=signup creates an agent account. Signup does not auto-sign-in; follow it with auth_manage action=signin, then verify the email.
API key — auth_manage action=set-api-key with a key from an existing human account; you operate as that human.
Sign in — auth_manage action=signin with email and password.
PKCE browser login — auth_manage action=pkce-login → user approves in browser → auth_manage action=pkce-complete. Secure OAuth 2.0 flow without sharing a password. Not for headless agents.

Core Capabilities

File storage with in-place overwrite versioning, folder hierarchy, and full-text/semantic search
Branded shares (Send / Receive / Exchange) with passwords, expiration, custom branding, and inline preview
Built-in AI/RAG (Ripley) — ask questions about files with citations, scoped to folders or an entire workspace
Metadata extraction — pull structured data out of unstructured files, then search across the workspace field vocabulary
Agent Intents — declare what you're working on in a workspace so parallel agents don't collide
File preview — images, video (HLS), audio, PDF, spreadsheets, and code rendered inline
URL import — pull a file straight into a workspace from any URL
Comments & annotations — anchored to image regions, video/audio timestamps, and PDF pages
Ownership transfer — build an org, then hand it to a human; the agent keeps admin access

Common Workflows

Deliver a report: Upload the file, create a Send share with a password and expiration, share the branded link.

Collect documents: Create a Receive share, send the link, files appear in your workspace.

Build a knowledge base: Create a workspace, turn on intelligence (it is off by default), upload documents, then query across all content with ai_manage action=ask (Ripley).

Set up a project for a human: Create the org, workspaces, and shares, upload content, configure branding, then transfer ownership.

Package Contents

File	Description
`SKILL.md`	Complete agent guide — tool menu, MCP-server mechanics, authentication, and guardrails
`references/REFERENCE.md`	Platform deep-dive — capabilities, concepts, URL construction
`skills/fast-io/`	The same guide and reference laid out as a plugin skill (generated copy of the two files above)
`.claude-plugin/plugin.json`, `.mcp.json`	Claude Code plugin manifest and its remote MCP server (`/mcp/tools`)
`plugin.json`, `mcp.json`	Portable Agent Plugins manifest and MCP configuration (`/mcp/tools`; the OpenAI package uses `/mcp/operations`)

mediafire/fast-io

Fastio MCP Skill Package

What is Fastio?

Connecting

Two Modes

Tools (Named mode)

The `how-to` tool

Resources

Authentication

Core Capabilities

Common Workflows

Package Contents

Links

Fastio MCP Skill Package

What is Fastio?

Connecting

Two Modes

Tools (Named mode)

The how-to tool

Resources

Authentication

Core Capabilities

Common Workflows

Package Contents

Links

The `how-to` tool