About plaid-fintech
A skill for developers integrating Plaid, with guidance on Link token exchange, transaction syncing, and Item errors, plus security and polling pitfalls.
Key features
- 01Create and exchange Link tokens
- 02Sync transactions incrementally
- 03Handle Item login errors
- 04Receive updates through webhooks
Use cases
- 01Implement Plaid Link authentication
- 02Sync account transaction changes
- 03Handle user reauthentication
- 04Design transaction update notifications
Install
Copy the command and run it in a terminal.
npx skills add https:/After installing, type/plaid-fintechin Claude Code to confirm it loaded.
Details
From the project READMEPlaid Fintech
Patterns
Link Token Creation and Exchange
Create a link_token for Plaid Link, exchange public_token for access_token. Link tokens are short-lived, one-time use. Access tokens don't expire but may need updating when users change passwords.
Transactions Sync
Use /transactions/sync for incremental transaction updates. More efficient than /transactions/get. Handle webhooks for real-time updates instead of polling.
Item Error Handling and Update Mode
Handle ITEM_LOGIN_REQUIRED errors by putting users through Link update mode. Listen for PENDING_DISCONNECT webhook to proactively prompt users.
Anti-Patterns
❌ Storing Access Tokens in Plain Text
❌ Polling Instead of Webhooks
❌ Ignoring Item Errors
⚠️ Sharp Edges
| Issue | Severity | Solution |
|---|---|---|
| Issue | critical | See docs |
| Issue | high | See docs |
| Issue | high | See docs |
| Issue | high | See docs |
| Issue | medium | See docs |
| Issue | medium | See docs |
| Issue | medium | See docs |
| Issue | medium | See docs |