Echo runs a remote MCP server (Model Context Protocol, Streamable HTTP) at https://echo.relevanceai.io/mcp. It authenticates with a workspace API key.
Connect
Add this to your client's MCP settings (Claude Desktop, Claude Code, Cursor and others use the same shape):
{
"mcpServers": {
"echo": {
"url": "https://echo.relevanceai.io/mcp",
"headers": { "Authorization": "Bearer echo_sk_..." }
}
}
}Copy config in Settings, API gives you this block. With a read-only key the write tools are hidden.
Tools
| Tool | What it does | Key |
|---|---|---|
list_campaigns | Campaigns with spaces, opened, engaged, booked and build progress | Read |
get_campaign | Funnel, the ten most engaged leads, and average time per section | Read |
list_leads | Leads with heat and signals. Filters: campaign_id, status (not_opened, opened, engaged, booked), min_heat, q, limit (max 500) | Read |
get_lead | Every human visit: seconds per section, scroll, clicks, device, country, possible forward, plus the lead's note | Read |
campaign_links | Each lead's personal link on your domain | Read |
list_designs | Designs, version and live campaigns | Read |
list_groups | Lead groups and their size | Read |
recent_signals | Signals in the last since_hours (default 24, max 720) | Read |
import_leads | New group (group_name) or existing group (group_id) from up to 2,000 rows | Write |
create_campaign | name, design_id, group_id, optional instruction and research. Publishes and writes AI parts in the background | Write |
send_links | campaign_id, source (lemlist, instantly, smartlead, sendkit, attio), list_id, optional variable | Write |
Prompts that work well
- "Which leads in Q4 RevOps outbound have a heat above 75? Summarise what each one read."
- "Who opened a page in the last 24 hours, and who forwarded it?"
- "Import these 40 rows into a group called Webinar attendees, then create a campaign with the Signal-led outbound design."
- "Write the links for Webinar follow-up into Lemlist campaign cam_123 as echo_link."
Heat is 0 to 100; 75 and above is high intent. See Heat score.