Needle

Needle is an outbound engine that plugs directly into the agent you already run. By creating a “MCP server” for your agent you can launch LinkedIn, Instagram and email campaigns from the same interface you use for Claude, Grok or ChatGPT. A 7‑day free trial lets you test it before committing, and a pay‑per‑sender model includes the leads bought.

Needle is made for founders, growth teams and agencies who need to identify precise B2B prospects and message them quickly. You start by defining your ideal customer profile, name, company size, stage, industry, LinkedIn headline keywords, and the engine queries its paid signal database to return a list of potential leads. The agent retrieves each lead's LinkedIn profile, recent posts, comments, and any other publicly available activity. The tool then creates a short, channel‑specific message that mimics the lead's voice or recent content, such as a LinkedIn InMail that references a post the lead just made. Once you approve the draft, the agent sends it and schedules a follow‑up after a set waiting period (e.g., 3 days). If no reply arrives, an email round‑trip may be queued. The entire funnel is visible: total sent, accepted, replied and booked, so you can see what percentage of each stage is working. Needle also warns you if a lead is already in your CRM or has a “do‑not‑contact” flag, automatically skipping those contacts and keeping your limit within healthy daily caps.

Because Needle relies on the agent's natural language understanding, the inputs are mostly plain language commands (e.g., “create a LinkedIn sequence for Serie A SaaS founders in Europe”). The output is a set of pre‑written outreach messages ready for approval, plus a timeline of when each message will be sent. Guardrails built into the engine, including suppression lists for customers, open deals and recent contacts, as well as daily send limits, prevent you from damaging your sender reputation. The platform can also warm up channels by suggesting a comment on a target's recent post before the initial invitation, which can increase acceptance rates.

Needle does not promise integration with every social network or buyer for selling leads; it focuses on LinkedIn, Instagram and email.