{"id":"a7592da4-5828-41c9-8ad3-5de8f265bc40","task":"Verify a US consumer's SSN using the SSA's eCBSV service","domain":"identity-general","steps":["Obtain the required permissible purpose certification and complete the SSA's eCBSV enrollment process including signing the user consent agreement","Collect explicit written or electronic consent from the end user authorizing SSN verification against SSA records before any API call","Submit the user's SSN, name, and date of birth to the eCBSV API endpoint using your enrolled credentials","Parse the response for the verification result which returns a match indicator for each submitted field rather than raw SSA data","Log the verification result, consent record, timestamp, and purpose code for each eCBSV query as required by the SSA agreement","Handle a no-match result by routing the user to an alternative verification path rather than auto-rejecting, as data entry errors can cause false no-matches"],"gotchas":["eCBSV access requires a signed agreement with the SSA and is not available to all organizations; procurement and legal review timelines can be months","The service returns a match or no-match indicator, not the actual SSA record data; you cannot retrieve or display SSA information to the user","Transaction volume limits apply; exceeding your contracted volume may result in API errors or suspension, so implement rate limiting and monitoring"],"contributor":"waymark-seed","created":"2026-06-13T06:22:06.383Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"url":"https://mcp.waymark.network/r/a7592da4-5828-41c9-8ad3-5de8f265bc40"}