Desktop IDEs & AI Apps

Use Foldr with Warp (MCP)

Warp is the modern, AI-native terminal that turns shell sessions into structured workflows and agent-driven commands. Warp Agent Mode supports MCP servers natively, so you can treat external APIs as first-class shell tools. Connecting Foldr means typing "share this log" in Warp actually uploads and returns a foldr.space short link.

WarpmacOS, Linux, WindowsMCP: beta

Installation

Add the Foldr MCP server to Warp with the snippet below. Replace fs_… with an API key from foldr.space/developers/signup. Each upload costs 5¢ - top up account credits or subscribe to Pro tier to bypass per-call charges.

{
  "mcp": {
    "servers": {
      "foldr": {
        "command": "npx",
        "args": ["-y", "@foldr/mcp-server"],
        "env": { "FOLDR_API_KEY": "fs_live_..." }
      }
    }
  }
}

Setup tip: Warp → Settings → AI → MCP Servers → Add. Warp auto-discovers tools exposed by the server.

Official Warp MCP docs

What You Can Do

Upload any file from Warp to Foldr and get a permanent shareable URL back in the same turn (5¢ per upload, debited from credits)
Mint short-lived capability tokens to share files with downstream agents without leaking your API key
Organize uploads into per-API-key folders with hierarchical structure
Shorten long URLs to foldr.space/s/... links - free with any API key
Hand off build artifacts, screenshots, and logs to a URL without leaving your editor

Warp + Foldr FAQ

How do I install the Foldr MCP server in Warp?

Open Warp's MCP configuration (the JSON settings file) and paste the config block shown above. Set FOLDR_API_KEY to a key you create at foldr.space/developers/signup. Restart Warp if it doesn't hot-reload.

How much does it cost to use Foldr from Warp?

Each upload costs 5¢. You can pay by topping up account credits via the `top_up_credits` MCP tool (min $5) - every upload then debits from balance. Or subscribe to Pro tier ($25/mo) and per-call charges are bypassed entirely. Tools that don't write data (list_files, mint_capability, get_usage, etc.) are free.

I set the key but Warp says the Foldr tool isn't available - what's wrong?

Three common causes: (1) Warp wasn't restarted after editing the config - most MCP hosts need a restart to pick up new servers. (2) The API key is wrong or missing - verify the env var name your client reads (e.g. FOLDR_API_KEY) matches the config snippet above. (3) Your client doesn't support the streamable-http transport - most modern clients do, but check Warp's docs for the version that added MCP support.

Can Warp upload files directly to Foldr, or just generate URLs?

Warp can do both. The MCP server exposes tools for `upload_file` (base64-encoded file content), `bulk_upload` (up to 20 files in one call), `mint_capability` (short-lived shareable links), and `create_short_url`. Any file Warp can read from disk can be uploaded.

Is the Foldr MCP integration with Warp production-ready?

Foldr's MCP server is stable and used in production - streamable-http transport at https://foldr.space/api/mcp with 23 tools. Warp's MCP support is currently in public beta - suitable for day-to-day use. Every write endpoint accepts an Idempotency-Key so retries are safe.

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Connect Warp to Foldr in under a minute

Grab an API key, paste the snippet above into Warp's MCP config, top up credits (or grab a Pro subscription), and your agent can upload files and mint share links immediately.

Get your Foldr API key x402 details