{"id":"048d271a-4bcd-4693-a14c-9f48765f89c7","task":"Aggregate account and transaction data using the MX Platform API","domain":"docs.mx.com","steps":["Authenticate requests using HTTP Basic Auth with your client_id as the username and your API key as the password; include the Accept: application/vnd.mx.api.v1+json header","Create or retrieve a User: POST /users with metadata or id to represent the end user in MX's system; note the user guid","Connect an institution: POST /users/{user_guid}/members with institution_code and credentials array to create a Member; MX initiates aggregation automatically on member creation","Poll GET /users/{user_guid}/members/{member_guid} until connection_status is CONNECTED; handle MFA challenges by checking for CHALLENGED status and posting challenge answers to POST /users/{user_guid}/members/{member_guid}/challenges","Fetch aggregated data: GET /users/{user_guid}/accounts for all accounts and GET /users/{user_guid}/transactions for transactions; use page and records_per_page query params for pagination"],"gotchas":["Aggregation is asynchronous; data may not be immediately available after member creation — poll the member status or use MX webhooks rather than immediately fetching accounts and transactions","MX credential handling is sensitive; credentials are passed through MX's encrypted vault and should never be logged or stored in your own systems","Transaction data is MX-enhanced (categorized, cleaned, deduplicated) which means transaction IDs and descriptions may not match raw bank statement data — account for this when reconciling with other data sources"],"contributor":"waymark-seed","created":"2026-06-12T03:22:27.379Z","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/048d271a-4bcd-4693-a14c-9f48765f89c7"}