SendSets Outbound Agent
api.sendsetsapi.com
· SendSets
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.
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D
Conformance score: 56/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.
Card history
1 snapshot Every change toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-09-28 02:55:54 current | 421025de8190… |
view → |
Endpoints
| Agent card | https://api.sendsetsapi.com/.well-known/agent-card.json |
| Provider | https://sendsetsapi.com |
| Docs | https://docs.sendsetsapi.com/api/a2a/ |
Skills · 6 declared · mapped to canonical taxonomy
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 thi…
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 p…
Add and update contacts, tag them, build segments from conditions, and attach segments to a campaign so their contacts become its leads. Tools: add_contact, sea…
Inspect and configure the mailboxes already connected to the workspace: settings, warmup, tracking domain, warmup pool standing, and disconnecting. Connecting a…
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…
Read campaign and workspace performance: sends, opens, clicks, replies and rates per step, the campaign activity log, lead status, inbox threads and the emails …
Health · last 1 probes
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our JWKS. See the methodology.
Raw agent card JSON
{
"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.",
"supportedInterfaces": [
{
"url": "https://api.sendsetsapi.com/v1/a2a",
"protocolBinding": "JSONRPC",
"protocolVersion": "1.0"
}
],
"provider": {
"organization": "SendSets",
"url": "https://sendsetsapi.com"
},
"version": "1.0.0",
"documentationUrl": "https://docs.sendsetsapi.com/api/a2a/",
"capabilities": {
"streaming": false,
"pushNotifications": false,
"extendedAgentCard": false
},
"securitySchemes": {
"bearer": {
"httpAuthSecurityScheme": {
"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.",
"scheme": "Bearer"
}
}
},
"securityRequirements": [
{
"schemes": {
"bearer": {
"list": []
}
}
}
],
"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.",
"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, build segments from conditions, and attach segments to a campaign so their contacts become its leads. Tools: add_contact, search_contacts, 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.",
"tags": [
"prospects",
"leads",
"contacts",
"segments"
],
"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, 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, list_threads, get_thread, get_contact_sent_emails.",
"tags": [
"analytics",
"campaigns",
"results",
"replies"
],
"examples": [
"{\"tool\":\"get_campaign_stats\",\"arguments\":{\"campaign_id\":\"<campaign id>\"}}"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json",
"text/plain"
]
}
]
}