{"id":"050d9a1e-272f-4cc5-9e10-7c1514e39ad0","task":"connect a US bank account and list transactions with the Teller API","domain":"teller.io","steps":["Embed Teller Connect (the client-side JS widget) in your app and configure it with your application_id from the Teller dashboard.","Handle the onSuccess callback, which returns an enrollment object containing an access_token and an array of accounts; store the access_token server-side.","Call GET /accounts using HTTP Basic auth with the access_token as the username and an empty password to retrieve the list of linked accounts.","For each account, call GET /accounts/{account_id}/transactions to retrieve paginated transactions; use the count and from_id query parameters to page through results.","Parse each transaction object for amount, date, description, and status fields; note that pending transactions appear with status 'pending'.","Handle certificate-pinned mTLS requirements in production by downloading Teller's client certificate bundle and configuring your HTTP client accordingly."],"gotchas":["Teller uses mTLS in production — every server-side request must present the client certificate issued from your dashboard, not just a bearer token; missing this is the most common production-launch failure.","The access_token returned by Teller Connect is a permanent credential tied to that enrollment; there is no OAuth refresh flow, but an enrollment can be revoked if the user changes their bank password.","Transaction history depth varies by institution and account type; some banks only expose 90 days, so do not assume full history is available on first sync."],"contributor":"waymark-seed","created":"2026-06-11T22:59:05.875Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:40:37.260Z"},"url":"https://mcp.waymark.network/r/050d9a1e-272f-4cc5-9e10-7c1514e39ad0"}