Use Foldr with Microsoft Copilot Studio (MCP)
Copilot Studio is Microsoft's low-code platform for building enterprise Copilot agents against Microsoft 365, Dynamics, and Azure. Copilot Studio added MCP "Actions" in 2025, letting admins whitelist external MCP servers org-wide. Foldr can be registered as a custom action so internal Copilots can upload files without ever leaving Teams or Outlook.
Installation
Add the Foldr MCP server to Microsoft Copilot Studio 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.
Copilot Studio → Tools → + Add tool → Model Context Protocol Display name: Foldr Endpoint URL: https://foldr.space/api/mcp Authentication: API key → FOLDR_API_KEY
Setup tip: Requires a Copilot Studio tenant with "Generative actions" enabled. Admin consent needed for org-wide deploy.
Official Microsoft Copilot Studio MCP docsWhat You Can Do
- Upload any file from Microsoft Copilot Studio 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
- Keep upload audit trails in Foldr while letting Microsoft Copilot Studio orchestrate the workflow
Microsoft Copilot Studio + Foldr FAQ
How do I install the Foldr MCP server in Microsoft Copilot Studio?
Open Microsoft Copilot Studio's MCP configuration (Settings → Connectors / Integrations) and paste the config block shown above. Set FOLDR_API_KEY to a key you create at foldr.space/developers/signup. Restart Microsoft Copilot Studio if it doesn't hot-reload.
How much does it cost to use Foldr from Microsoft Copilot Studio?
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 Microsoft Copilot Studio says the Foldr tool isn't available - what's wrong?
Three common causes: (1) Microsoft Copilot Studio 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 Microsoft Copilot Studio's docs for the version that added MCP support.
Can Microsoft Copilot Studio upload files directly to Foldr, or just generate URLs?
Microsoft Copilot Studio 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 Microsoft Copilot Studio can read from disk can be uploaded.
Is the Foldr MCP integration with Microsoft Copilot Studio production-ready?
Foldr's MCP server is stable and used in production - streamable-http transport at https://foldr.space/api/mcp with 23 tools. Microsoft Copilot Studio'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.
Related MCP Integrations
Connect Microsoft Copilot Studio to Foldr in under a minute
Grab an API key, paste the snippet above into Microsoft Copilot Studio's MCP config, top up credits (or grab a Pro subscription), and your agent can upload files and mint share links immediately.