{"protocolVersion":"1.0","name":"SendSets Outbound Agent","description":"SendSets is an agent-first outbound platform that lets AI agents create and manage cold email campaigns, add prospects, manage sending accounts, send emails, and inspect campaign results programmatically. Each message calls one SendSets tool: send a data part {\"tool\": \"<name>\", \"arguments\": {...}} naming a tool listed under a skill.","author":"SendSets","wellKnownURI":"https://api.sendsetsapi.com/.well-known/agent-card.json","url":"https://api.sendsetsapi.com/v1/a2a","version":"1.0.0","provider":{"organization":"SendSets","url":"https://sendsetsapi.com/"},"documentationUrl":"https://docs.sendsetsapi.com/api/a2a/","iconUrl":null,"supportsAuthenticatedExtendedCard":false,"security":[{"schemes":{"bearer":{"list":[]}}}],"securitySchemes":{"bearer":{"httpAuthSecurityScheme":{"scheme":"Bearer","description":"A SendSets API key (ssk_...) or OAuth 2.1 access token in the Authorization header. The credential's API permissions decide which tools it may call."}}},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json","text/plain"],"skills":[{"id":"create-outbound-campaign","name":"Create outbound campaign","description":"Create a draft cold email campaign, write its sequence steps and choose the mailboxes it sends from. The campaign is created as a draft and never started by this skill. Tools: create_campaign_draft, add_campaign_step, update_campaign_step, list_campaign_steps, set_campaign_senders.","tags":["cold-email","outbound","campaigns","sequences"],"examples":["{\"tool\":\"create_campaign_draft\",\"arguments\":{\"name\":\"SaaS founders Q4\"}}","{\"tool\":\"list_campaign_steps\",\"arguments\":{\"campaign_id\":\"<campaign id>\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"manage-outbound-campaign","name":"Manage outbound campaign","description":"List, inspect, update, start, stop and delete campaigns, and hold or resume one lead inside a campaign. Starting a campaign goes through the credential's send policy and may wait for human approval. Tools: list_campaigns, get_campaign, update_campaign, start_campaign, stop_campaign, delete_campaign, delete_campaign_step, list_campaign_senders, set_lead_hold, list_ab_variants, create_ab_variant, update_ab_variant, delete_ab_variant.","tags":["campaigns","outbound","launch"],"examples":["{\"tool\":\"list_campaigns\",\"arguments\":{}}","{\"tool\":\"start_campaign\",\"arguments\":{\"campaign_id\":\"<campaign id>\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"add-prospects","name":"Add prospects","description":"Add and update contacts, tag them, search the lead database by outreach status across campaigns, role and company, measure how much of an ICP is still fresh, build segments from conditions, and attach segments to a campaign so their contacts become its leads. Tools: add_contact, search_contacts, lead_database_search, lead_database_companies, audience_coverage, get_contact, update_contact_fields, bulk_edit_contacts, add_tag, remove_tag, list_segment_fields, preview_segment, create_segment, update_segment, set_segment_members, list_segments, get_segment, set_campaign_segments, add_segment_to_campaign, list_campaign_segments, list_categories, create_category, update_category, delete_category, log_meeting, delete_meeting, sql_bulk_contacts.","tags":["prospects","leads","contacts","segments","lead-database"],"examples":["{\"tool\":\"add_contact\",\"arguments\":{\"email\":\"jane@example.com\",\"first_name\":\"Jane\"}}","{\"tool\":\"add_segment_to_campaign\",\"arguments\":{\"campaign_id\":\"<campaign id>\",\"segment_id\":\"<segment id>\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"manage-sending-accounts","name":"Manage sending accounts","description":"Inspect and configure the mailboxes already connected to the workspace: settings, warmup, tracking domain, warmup pool standing, and disconnecting. Connecting a new mailbox needs its credentials and is done in the dashboard or CLI. Tools: list_mailboxes, get_mailbox, update_mailbox, set_mailbox_warmup, set_mailbox_tracking_domain, get_warmup_ban_status, disconnect_mailbox.","tags":["mailboxes","sending-accounts","warmup","deliverability"],"examples":["{\"tool\":\"list_mailboxes\",\"arguments\":{}}","{\"tool\":\"set_mailbox_warmup\",\"arguments\":{\"email_account_id\":\"<mailbox id>\",\"action\":\"start\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"send-email","name":"Send email","description":"Send a new email or a reply into an inbox thread from a connected mailbox, draft a reply without sending, and list or cancel queued sends. Every send is checked against the credential's send policy, suppression and mailbox health, and may wait for human approval. Tools: compose_email, send_reply, draft_reply, list_scheduled_sends, cancel_scheduled_send.","tags":["email","sending","replies"],"examples":["{\"tool\":\"compose_email\",\"arguments\":{\"to\":\"jane@example.com\",\"subject\":\"Quick question\",\"body\":\"Hi Jane, ...\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"get-campaign-results","name":"Get campaign results","description":"Read campaign and workspace performance: sends, opens, clicks, replies and rates per step, outbound metrics with a previous period, breakdowns by campaign, mailbox, timing and copy, a mailbox scorecard ranked against similar-volume peers, the campaign activity log, lead status, inbox threads and the emails sent to a contact. Tools: get_campaign_stats, get_campaign_logs, list_campaign_leads, get_dashboard_analytics, outbound_metrics, outbound_breakdown, mailbox_scorecard, list_threads, get_thread, get_contact_sent_emails.","tags":["analytics","campaigns","results","replies","deliverability"],"examples":["{\"tool\":\"get_campaign_stats\",\"arguments\":{\"campaign_id\":\"<campaign id>\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"query-workspace-data","name":"Query workspace data","description":"Answer any question about this workspace's outbound data with read-only SQL: list and describe the tables (sends and outcomes, mailboxes, contacts with role and outreach status, A/B arms, warmup, meetings, conversions, attribution, deals), adapt worked examples, estimate cost, and run the query. Scoped to the workspace, SELECT only, time and row capped. Tools: sql_schema, sql_examples, sql_estimate, sql_query.","tags":["analytics","sql","data"],"examples":["{\"tool\":\"sql_query\",\"arguments\":{\"sql\":\"SELECT reply_class, count(*) FROM email_sends WHERE reply_class <> '' GROUP BY 1\"}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]},{"id":"measure-acquisition","name":"Measure acquisition","description":"Trace confirmed sends to signups, activations, paid customers, and revenue: product event schema and dry runs, conversion goals, prospects by stage, prospect timelines, cohort breakdowns by campaign, step, variant, and audience, customer attribution with lifetime revenue and per-customer explanations, event trends, and funnels. Tools: events_schema, event_test, goals_list, goal_create, goal_preview, prospects_search, prospect_timeline, acquisition_summary, acquisition_breakdown, attribution_summary, attribution_breakdown, attribution_explain, event_trends, event_funnel, record_event, goal_update, goal_archive, delete_person, correct_attribution, restore_attribution, set_campaign_spend, delete_campaign_spend.","tags":["acquisition","analytics","events","goals","funnels","attribution"],"examples":["{\"tool\":\"acquisition_breakdown\",\"arguments\":{\"dimension\":\"variant\",\"campaign_id\":\"<campaign id>\",\"days\":90}}"],"inputModes":["application/json"],"outputModes":["application/json","text/plain"]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"a172f4cf-1966-414d-9119-8e2421eec782","created_at":"2026-09-27T22:51:57.331866Z","updated_at":"2026-10-14T02:17:44.938784Z","hidden":false,"flag_count":0,"maintainer_notes":"Agent endpoint returns **401 Unauthorized**. Callers need credentials, but the agent card should declare `securitySchemes` and `security` so clients know how to authenticate. See the A2A spec.","category":"commerce-marketing","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":1633,"last_health_check":"2026-10-14T02:17:44.742060Z","is_healthy":true,"status_notes":[],"task_conformance":{"category":"401","passed":false,"checked_at":"2026-10-13T02:48:46.886809Z","response_ms":396}}