Creates a test Item without going through Link: calls /sandbox/public_token/create then /item/public_token/exchange. Stores the access_token in the server vault and returns an item_id you pass to every other tool. Sandbox test institutions: ins_109508 (First Platypus Bank, default), ins_109509 (Tartan Bank), ins_109510 (Houndstooth Bank), ins_109511 (Tattersall Federal Credit Union). Use override_username "user_custom" with custom_user_json to shape the data, or "user_transactions_dynamic" for changing transactions.

Lists item_ids the vault knows about (no tokens are returned).

Calls /accounts/get. Returns account ids, names, types, subtypes, masks and balances.

Calls /accounts/balance/get, the only endpoint that always hits the institution for a fresh balance (billable per call in production).

Calls /transactions/sync and follows has_more until the update is complete, so you get one consistent snapshot. Pass the returned next_cursor on later calls to get only changes. On a brand-new Item the first call can return zero transactions while Plaid is still fetching; the SYNC_UPDATES_AVAILABLE webhook (or a retry after a few seconds in sandbox) signals data is ready.

Calls /auth/get. Returns ACH (and wire/BACS/EFT where present) numbers for depository accounts on the Item.

Calls /identity/get. Returns names, emails, phone numbers and addresses the institution holds for each account.

Calls /item/get. Shows available/billed products, consent expiration, the current error (if any) and webhook URL.

Calls /item/remove, invalidating the access_token, and forgets it in the vault. In production this stops billing for the Item.

Calls /sandbox/item/fire_webhook so you can exercise your webhook handler. The Item must have been created with a webhook URL.

Calls /sandbox/item/reset_login to put the Item into the error state a real user hits when their bank password changes. Use it to test your update-mode Link flow.

Calls /institutions/search. In sandbox this returns the test banks; in production it searches the full network. Useful for finding institution_id and OAuth status.

Calls /link/token/create. Use this when you want the real Link UI (web or mobile) instead of the sandbox shortcut. Pass the returned link_token to Plaid Link on the client; when Link returns a public_token, exchange it with /item/public_token/exchange. Sandbox Link accepts user_good / pass_good.

Keyword search over every endpoint in the official Plaid OpenAPI spec (path, summary, description). Deprecated endpoints are hidden unless asked for.

Request fields (required flag, type, enum, one-line description), a 200 response example from the spec, deprecation status and the docs link for a path such as /transactions/sync.

Builds the smallest valid request body for an endpoint from the OpenAPI required fields, then renders it as a curl command and a plaid-node snippet against sandbox.plaid.com. Override fields with body.

Searches the page index Plaid publishes at plaid.com/docs/llms.txt (guides, API reference, Link, webhooks, errors). Returns page titles and URLs; fetch one with plaid_docs_fetch.

Every plaid.com/docs page is also served as Markdown at /index.html.md. Returns that text, truncated to max_chars, optionally starting at an offset for paging.

Version of the OpenAPI spec in use, endpoint counts (live, deprecated, hidden, sandbox-only) and the full list of sandbox-only endpoints.

Cross-checks the official OpenAPI spec against the official Postman collection and plaid.com/docs: endpoints missing from Postman, Postman requests hitting deprecated or unknown endpoints, placeholder or missing externalDocs links, endpoints absent from llms-full.txt and, with live=true, externalDocs pages that 404 and anchors that do not exist on the page. This is the maintenance checklist a DevRel engineer would run before each release.