Built with Filecoin Onchain Cloud

Explore the tools, SDKs, and apps the community is building on FOC. Fork a reference app, drop storage into your agent, or get inspired by what's already shipping.

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Plug your agents into Filecoin

Give AI agents Filecoin storage in minutes. A drop-in CLI, an MCP server, and an installable skill, all speaking the Synapse SDK.

  • CLI

    FOC CLI

    Stores files on Filecoin Onchain Cloud from the terminal or inside an agent. It manages wallets, USDFC funding, datasets, and uploads on the Synapse SDK, and ships an MCP mode for agents.

    View on npmView code
  • MCP server

    FOC Storage MCP Server

    A Model Context Protocol server that gives AI assistants Filecoin storage. Agents upload files, manage datasets, deposit USDFC, and pick providers over MCP.

    View on npmView code
  • Agent skills

    FOC Agent Skills

    Two installable skills that ship with the FOC CLI. One runs storage and payment operations such as uploads, datasets, and USDFC funding; the other searches the FOC docs so agents can look up references before they build.

    View code

SDKs & reference apps

Official building blocks and starter apps to fork, from the core SDK to a full-stack upload dApp.

  • SDK

    Synapse SDK

    The core JavaScript and TypeScript SDK for Filecoin Onchain Cloud, covering storage, USDFC payments, session keys, and retrieval across Node, browsers, and React.

    Read the docsView code
  • Starter dApp

    FOC Upload dApp

    A production Next.js starter for FOC storage apps, with multi-file uploads, CDN and Filecoin Pin modes, USDFC management, and a live dashboard.

    Try the demoView code
  • IPFS pinning

    Filecoin Pin

    Decentralized IPFS pinning backed by Filecoin proofs. It pins content to the PDP service and ships as a CLI, a library, and a GitHub Action.

    Open Filecoin PinView code
  • Example app

    Synapse Playground

    An in-repo React and Vite example that exercises FOC storage, payments, and retrieval through the Synapse SDK.

    View code
  • Go SDK

    Synapse Go

    A community Go port of the Synapse SDK that brings FOC storage, payments, and retrieval to Go services.

    View code
  • Python SDK

    Pynapse

    A Python port of the Synapse SDK that brings FOC storage, payments, and retrieval to Python apps and agents.

    View on PyPIView code

Built by the community

Real applications shipping on Filecoin Onchain Cloud. Explore what's possible, then build your own.

  • E-signatures

    Filosign

    A decentralized DocuSign alternative where signatures and verifications persist immutably on Filecoin, staying verifiable long after they are made.

    Open the app
  • Agent memory

    W3Stor

    A storage and memory layer for AI agents. Files and memories get an IPFS CID, replicate across FOC providers with PDP attestation, and form a semantic graph for recall.

    Open W3StorView code
  • Memory SDK

    Engram SDK

    A budget-aware memory SDK for AI agents. Every store writes content-addressed data to Filecoin through the Synapse SDK, paid from the agent's own wallet in USDFC.

    Visit siteView code
  • Agent platform

    Compose Mesh

    A desktop runtime where autonomous agents network over libp2p and anchor their state to Filecoin through the Synapse SDK. The Compose.Market marketplace lets users build and monetize agent swarms.

    Open ComposeView code
  • DAO agents

    Spawn Protocol

    An AI agent swarm that governs DAOs onchain. Parent agents spawn children to vote on proposals, storing execution logs and lineage on Filecoin through the Synapse SDK.

    Open the appView code
  • Agent economy

    FilCraft

    An onchain marketplace where AI agents register identities, build reputation, and sell data, paid over x402. Session transcripts and outputs are stored on Filecoin through the Synapse SDK.

    Open the appView code
  • Credit markets

    EJENTS

    Autonomous agents run an onchain credit market of lending, tasks, and liquidations. Snapshots and reasoning traces are pinned with Filecoin Pin and recorded onchain.

    Open the appView code
  • Agent backup

    Claw Vault

    A CLI that snapshots an AI agent's full state and backs it up to Filecoin Warm Storage with PDP-verified copies, restoring it byte for byte from a CID.

    View code
  • Deploy platform

    Filify

    A deploy platform for the decentralized web. Connect a repo, build, publish to Filecoin through filecoin-pin, and point an ENS name at the resulting CID.

    View code
  • Encrypted email

    dMail

    A serverless, encrypted email client addressed by ENS. Messages and attachments are stored on Filecoin through the Synapse SDK.

    View code
  • Agent marketplace

    Agentex

    A marketplace where AI trading agents buy and sell encrypted trade experiences. The reasoning is pinned to Filecoin with onchain proofs and settled with Filecoin Pay.

    View code

Building on Filecoin Onchain Cloud?

Ship a working app on FOC and we'll feature it here. Tell us what you're building.

Submit your projectBrowse the docs