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Grinfi Sales

LinkedIn outreach that runs like a human

Outreach
For AI agents
MCPAPINative readiness
About

What is Grinfi Sales

Grinfi Sales automates LinkedIn outreach by queuing connection requests, messages, and follow-up sequences with randomized typing patterns and activity schedules designed to stay within LinkedIn's detection thresholds. It's built for SDRs, BDRs, lead generation agencies, and GTM engineers at SMBs and mid-market companies who need to run multiple profiles without manual oversight. The standout capability is its AI agent integration — you can connect Claude or GPT-4 directly into outreach workflows via the MCP server, letting autonomous agents personalize messages and manage sequences without human intervention at each step. CRM data sync runs through webhooks and API, and contacts can be restarted within automation flows without rebuilding sequences from scratch. That said, Grinfi is LinkedIn-first; if your outreach strategy spans email-heavy or multi-channel sequences beyond LinkedIn, you'll need additional tooling to cover those channels.

OutreachWorkflow
Capabilities

Key features

LinkedIn automation

connect, message, and follow at scale

AI capabilities

autonomous multi-step actions, AI-drafted personalised copy

Workflow

multi-step sequences, event-driven triggers

Also ships

Chrome extension

Outbound webhooks

event-driven integrations

Our verdict

Vanderbuild take

For SDRs, BDR teams, and agencies running LinkedIn outreach across multiple profiles, Grinfi sits in a specific and useful lane — it's not trying to be a full sales engagement platform, it's trying to make LinkedIn automation safe and repeatable at volume. The agentic story here is genuinely native: the MCP server means you can wire Claude or GPT-4 directly into your outreach workflows, making Grinfi a real orchestration layer for AI-driven outbound rather than just a UI tool you prompt manually. At €15–€19 per profile on a seat-based model, it's affordable for small teams, though costs stack quickly once an agency is managing 20+ profiles. The honest limitation is channel depth — Grinfi is LinkedIn-first, and if your sequences need to branch into cold email or other channels as a primary motion, you'll be stitching together additional tools to fill that gap.

Mateusz Sekta
Founder, vanderbuild
Learn more

Our Resources

The wedge

Agentic stack profile

MCP server
Yes

Live MCP server — agents can call this tool directly.

The MCP server allows AI agents to control the entire outreach pipeline via natural language, with capabilities including contact management, LinkedIn messaging, email campaigns, and sequence automation.

Open MCP →
API
REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →
Agentic readiness
Native

Built for agents from the ground up.

MCP server + agent-friendly API + at least one autonomous workflow out of the box. The bar for 'Native' is high — only a handful of tools currently qualify.

Stack role
Sequencer · Orchestrator

Where this tool slots into an agentic pipeline.

Plays the role of Sequencer + Orchestrator in an agentic pipeline. Use it to send and track multi-step outbound cadences across channels; tie multiple tools and AI calls together in one workflow.

Compare

Grinfi Sales alternatives

Tools that solve a similar problem — compared at a glance.

Grinfi Sales(this tool)
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Budget
$$
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Readiness
Native
MCP
Yes
API
REST
Aimfox
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$$
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HeyReach
Pricing
Seat-based
Budget
$$$
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Readiness
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MCP
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API
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Answers

Frequently asked questions

Does Grinfi Sales have an MCP server?

Yes — Grinfi Sales exposes a Model Context Protocol server. The MCP server allows AI agents to control the entire outreach pipeline via natural language, with capabilities including contact management, LinkedIn messaging, email campaigns, and sequence automation. See the MCP docs at https://mcp.grinfi.io/.

Does Grinfi Sales have a public API?

Yes — Grinfi Sales ships a REST API. Docs: https://api.grinfi.io/openapi/companies.

How much does Grinfi Sales cost?

Grinfi Sales: pricing is seat-based, expect mid tier ($$) spend. Full pricing page: https://grinfi.io/pricing.

Who is Grinfi Sales best for?

Grinfi Sales is built for SDR / BDR, Agency, GTM Engineer. Fits SMB (1-50), Mid-market (50-500)-sized teams.

How well does Grinfi Sales fit an agentic sales stack?

Tier: Native. Has both an MCP server and an agent-friendly API — drops into an agentic stack with minimal glue code.