{"name":"io.usefulapi/mailercheck","title":"MailerCheck MCP by usefulapi","endpoint":"https://mailercheck.usefulapi.io/mcp","repository":"https://github.com/m190/usefulapi-mcp","page":"https://lazaretto.dev/mcp-registry/io-usefulapi-mailercheck","badge":"https://lazaretto.dev/mcp-registry/io-usefulapi-mailercheck/badge.svg","listed_at":"2026-10-31T17:07:09.301Z","state":"no findings","check":{"checked_at":"2026-11-01T05:02:24.399Z","outcome":"read","tool_count":6,"tool_names":["mailercheck_account","mailercheck_credits","mailercheck_lists","mailercheck_get_list","mailercheck_verify_email","mailercheck_verification_result"],"sets_instructions":true,"verdict":"clear","findings":[],"rules_version":"2026.10.30a"},"tools":{"fingerprint":"eb67222b38123f680b859a99b44a703e7d5261306c77a83d6ffc01d0b872d845","tool_hashes":{"mailercheck_lists":"923efb04739037a16092cec306dc1ddcc40ba9142095b58b21f089d3ada18ecb","mailercheck_account":"5019a0c8319544c7652758db7ecbf3e1c291ffb3323bef3739b293e17bfde136","mailercheck_credits":"e9e7ef96accb31702f9b724eda3c7e944e72f67e558c250c87cf9b6f9d57c05f","mailercheck_get_list":"a087fd32c5c3c0ecba72cfb5f76243a2406eb8708c32b87b0092bae204423458","mailercheck_verify_email":"9e4c84969253be29f027ceb0d23d7dd047ae57e4e07fa03c301127274a1a26e4","mailercheck_verification_result":"379ae8d5892a604529c1a6ba54de5ac9bd01c5e46e84c3c543542356f6b091c7"},"instructions_hash":"793edd3945055d1d56725e5393a12b97a1fdc5c648a5249da9ac28cbf22f1cfe","fingerprinted_at":"2026-11-01T05:02:24.399Z","changed_at":null,"compared_since":"2026-10-30","changes":[]},"disclaimer":"Signals, not a warranty. A clean read means these rules found nothing, not that the server is harmless. An unread server is not checked."}