Plaid

Overview

Plaid connects to user bank accounts and exposes transaction data — key-based (a GET to a POST route returns a structured 404, verified).

Quick Start

Requires client_id + secret + access_token (POST):

curl -X POST "https://sandbox.plaid.com/transactions/sync" \
  -H "Content-Type: application/json" \
  -d '{"client_id":"YOUR_ID","secret":"YOUR_SECRET","access_token":"YOUR_TOKEN"}'

{ "error_code": "NOT_FOUND", "error_message": "invalid route: /transactions/get" }

Authentication

• Register at plaid.com → client_id + secret (sandbox keys free).
• POST JSON with client_id/secret (wrong route → structured 404, verified).

Rate Limits & Notes

• Sandbox free; production is paid per Plaid’s pricing.
• Transactions, balances, identity, auth.

FAQ

Is Plaid free? Sandbox free; production paid.

Why 404? The route was wrong for the method (verified) — use the docs’ POST routes.

What’s the auth style? client_id + secret in JSON body.