Find B2B leads with verified work emails, find and verify emails, and run cold email outreach.
Marketing & SalesCommunication & messaging
- Passed: Handshake
- Passed: Tools listed
- Passed: Updated recently
Median latency 173 ms · Last checked
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Evidence for your next connection.
Independent measurements of remote MCP servers. Every observation has a timestamp.
Read-only probesMCP server · Communication & messaging
Read Sarbacane campaigns, stats, lists and blacklists; manage contacts and draft email campaigns.
0 failed · 8 not measured
Median of successful probes over 7 days
Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.
Tool definitions returned by this server
Independent monitoring
Outdated check
Last connection measurement is over 24 hours old. Current availability is unknown.
Last checked| Test area | Passed | Failed | Unmeasured |
|---|---|---|---|
ConnectionCan a client connect and discover tools? | 5 | 0 | 0 |
Reliability & speedDoes it respond consistently and quickly? | 0 | 0 | 4 |
Access & authenticationWhat is required to use this server? | 1 | 0 | 2 |
Tool qualityAre the tool definitions usable by an agent? | 4 | 0 | 0 |
Publisher identityCan the publisher be traced to its source? | 4 | 0 | 2 |
Unmeasured means there is not enough evidence to decide. How these checks work
Start using Sarbacane MCP by usefulapi
Choose your client, copy the configuration, then enable the server in your client’s MCP settings.
Run this command in your terminal, then restart Claude Code.
Claude Code
claude mcp add --transport http sarbacane-mcp-by-usefulapi https://sarbacane.usefulapi.io/mcpCapabilities
WRITE: record an email and/or phone as unsubscribed in a blacklist, so campaigns using that blacklist skip it. Cannot be undone with these tools. POST /v1/blacklists/{blacklistId}/unsubscribers.
DiscoveredWRITE: add a contact to a contact list. Give an email, a phone number or both, and optional custom field values. Adds a new record; use sarbacane_upsert_contact to update an existing contact. POST /v1/lists/{listId}/contacts.
DiscoveredWRITE: create a new email campaign as a DRAFT. It is never sent by these tools: add content (sarbacane_set_campaign_content or sarbacane_import_campaign_template) and a contact list (sarbacane_set_campaign_list), then send it from Sarbacane. POST /v1/campaigns/email.
DiscoveredOne campaign: state, kind, blacklists, send ids, sent date. The send id is needed to see content. GET /v1/campaigns/{campaignId}.
DiscoveredStatistics of a campaign per send: delivered count, opens, openers, clicks, clickers, unsubscribers, devices and operating systems. GET /v1/reports/{campaignId}.
DiscoveredThe account's remaining credits per type (email campaigns, SMS, eye tracking, Sendkit emails) with expiry date and subscription type. GET /v1/credits.
DiscoveredWRITE: load a saved template's content into an email campaign, replacing its content. POST /v1/campaigns/{campaignId}/content.
DiscoveredEntries of a blacklist by kind: bounces (invalid addresses), unsubscribers or complaints (personal data: email, phone). Filter by email, phone or modification date. GET /v1/blacklists/{blacklistId}/{bounces|unsubscribers|complaints}.
DiscoveredAll blacklists (suppression lists) of the account, with their ids. GET /v1/blacklists.
DiscoveredRecipients attached to a campaign (personal data: email, phone). GET /v1/campaigns/{campaignId}/recipients.
DiscoveredCampaigns of the account (id, name, kind, created/edited, recipient count). Filter by state or a text in the name or subject. GET /v1/campaigns.
DiscoveredContacts of one list (personal data: email, phone, custom fields). Filter by email, phone, a text search across fields, or the modification date. GET /v1/lists/{listId}/contacts.
DiscoveredThe custom fields (columns) of a contact list: id, caption and type (STRING, BOOL, INT, DATE). Field ids are the keys used when writing contacts. GET /v1/lists/{listId}/fields.
DiscoveredAll contact lists of the account, with their ids. Use the ids for contacts, fields and campaigns. GET /v1/lists.
DiscoveredUsers and pending invitations of the Sarbacane account (name, email, role, team). GET /v1/users.
DiscoveredWebhook subscriptions of the account: url, display name and subscribed event kinds. GET /v1/webhooks.
DiscoveredWRITE: set the HTML (and optional plain-text) content of an email campaign's send, replacing what was there. Without send_id the campaign's only send is used (an A/B test campaign has several: pass one). POST /v1/campaigns/{campaignId}/send/{sendId}/content.
DiscoveredWRITE: import a contact list's contacts as the recipients of a campaign. It does not send the campaign. POST /v1/campaigns/{campaignId}/list.
DiscoveredWRITE: add a contact to a list, or update it when the same email/phone pair already exists (custom field values are overwritten). POST /v1/lists/{listId}/contacts/upsert.
DiscoveredRecent measurements
| Checked | Result | Response | Tools |
|---|---|---|---|
| Connected | 57 ms | 19 |