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📊 Intel view 📋 Audit JSON 🔄 Changelog
80
A2A A2A 1.0 v1.0.0

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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Trust score
56/100
grade D · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~176 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 56/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 15/25
Endpoint requires auth, real agent but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 6 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: SendSets (https://sendsetsapi.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
partial Security declaration 2/5
Declares 1 security scheme(s) but none use PKCE or mTLS.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs →
⚠ Card drift detected. This agent's 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 recorded

Nothing 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 to agent-card.json
Captured Hash
2026-09-28 02:55:54 current 421025de8190… view →
Uptime
accumulating
1 direct probes · 30d
Response
157ms
last direct probe
Skills
6
declared
Streaming
—
SSE-capable

Skills · 6 declared · mapped to canonical taxonomy

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 thi…

canonical Cold Outreach and Prospecting match 89%
cold-emailoutboundcampaignssequences
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 p…

canonical Email Send and Manage match 82%
campaignsoutboundlaunch
Add prospects

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…

canonical Cold Outreach and Prospecting match 84%
prospectsleadscontactssegments
Manage sending accounts

Inspect and configure the mailboxes already connected to the workspace: settings, warmup, tracking domain, warmup pool standing, and disconnecting. Connecting a…

canonical Cold Outreach and Prospecting match 83%
mailboxessending-accountswarmupdeliverability
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…

canonical Email Send and Manage match 89%
emailsendingreplies
Get campaign results

Read campaign and workspace performance: sends, opens, clicks, replies and rates per step, the campaign activity log, lead status, inbox threads and the emails …

analyticscampaignsresultsreplies

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-09-28 02:55:28 200 ✗ 157ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/api.sendsetsapi.com.svg)](https://agenstry.com/agents/api.sendsetsapi.com)
[![Verified Business](https://agenstry.com/badge/api.sendsetsapi.com/identity.svg)](https://agenstry.com/agents/api.sendsetsapi.com)
[![Uptime](https://agenstry.com/badge/api.sendsetsapi.com/uptime.svg)](https://agenstry.com/agents/api.sendsetsapi.com)
[![A2A version](https://agenstry.com/badge/api.sendsetsapi.com/protocol.svg)](https://agenstry.com/agents/api.sendsetsapi.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
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"
      ]
    }
  ]
}