MCP servers · Plaid · connector
Connect Claude (desktop & claude.ai) to Plaid
One line gives Claude (desktop & claude.ai) your Plaid account as tools: 9 endpoints, links, accounts, transactions, called with your own connection. No key in the prompt, a receipt for every call, revoke Claude (desktop & claude.ai)'s access alone any time.
Three steps
- Create a free 0n3 account and connect Plaid. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Claude (desktop & claude.ai). Add 0n3 as a custom connector; sign in once through the 0n door.
- Ask Claude (desktop & claude.ai): whoami. Then: "Create a link token in Plaid".
Claude desktop app and claude.ai
- Settings → Connectors → Add custom connector
- Name: 0n3 · URL: https://0n3.app/mcp
- Click Connect and sign in with your 0n account (email + password, or paste your 0n token)
- Turn the connector on in a chat and ask: "whoami"
This is the OAuth door: no token to paste, revoke it any time from 0n3 → Tokens.
The line above carries a placeholder; 0n3.app/install mints a real key named for Claude (desktop & claude.ai) and fills it in.
What Claude (desktop & claude.ai) can then do in 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/getPlaid in other AI clients
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