MCP servers · finance
Plaid MCP server
Financial data — bank accounts, transactions, identity, auth via Plaid API. Hosted by 0n3: 9 endpoints your AI can call with your own Plaid account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.
9 endpoints6 categoriesauth: api_keyhosted
What your AI can do with Plaid
Links · Create link tokens and exchange public tokens1
Create a link token
POST /link/token/createAccounts · List accounts and get balances2
Get accounts
POST /accounts/getGet a balance
POST /accounts/balance/getTransactions · List and sync transactions2
Get transactions
POST /transactions/getSync transactions
POST /transactions/syncIdentity · Retrieve identity information1
Get an identity
POST /identity/getAuth · Get account and routing numbers1
Get an auth
POST /auth/getMore · Everything else this app exposes.2
Exchange public token
POST /item/public_token/exchangeGet institutions
POST /institutions/getInstall in three steps
- Create a free account at 0n3.app and connect Plaid: paste a key or sign in through a door. It lands in your vault, encrypted.
- Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
- Ask your AI: whoami. It answers with your connected services. Then ask it to create a link token in Plaid.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
Connect Plaid to
Claude Code + PlaidMCP server + skillClaude (desktop & claude.ai) + PlaidconnectorChatGPT + Plaidconnector · GPT actionCodex CLI + PlaidMCP serverGemini CLI + PlaidMCP serverCursor + PlaidMCP serverVS Code (Copilot) + PlaidMCP serverWindsurf + PlaidMCP server
Questions
What can an AI do with the Plaid MCP server?
9 things: links, accounts, transactions, identity and more. Every call runs with your own Plaid connection and lands on a receipt.
Do I need to run anything on my computer?
No. 0n3 is hosted. Connect Plaid once, install 0n3 into your AI with one line, done.
Where does my Plaid key go?
Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.