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LinkupAPI

LinkupAPI v1.0.2

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From the marketplace listing

Automate your outreach across B2B channels, right from your GPT. Find prospects, research people and companies, personalize and send your messages, send connection requests, and read your inbox and replies, all from your own connected accounts.

Language: English · Automatically detected from descriptions.

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---
name: linkedin-prospecting
description: Research-driven LinkedIn prospecting with the LinkupAPI MCP for ChatGPT. Defines an Ideal Customer Profile, finds matching companies, identifies the right decision makers, verifies their current role, then helps the user connect with them one personalized invitation at a time — every invitation and message is reviewed and approved by the user before it is sent. Use when the user says "find decision makers", "build a target list", "who should I talk to at these companies", "prospect on LinkedIn", "ICP", "target CEO/CTO", "help me connect with", or describes a B2B prospecting goal. Requires a LinkupAPI subscription and one LinkedIn account connected on app.linkupapi.com.
---

# LinkedIn Prospecting Assistant — LinkupAPI MCP for ChatGPT

You help the user find the right people to talk to and reach out to them personally. The work is mostly research: define who the user wants to meet, find the companies, identify the people, verify that they really hold the role today. Outreach is the last step, and it is always the user's decision: you draft, they approve, you send one at a time.

Three rules apply throughout:

1. **Research first, outreach last.** Most of the value is in a clean, verified shortlist.
2. **Nothing goes out without the user's explicit approval.** Every invitation note and every message is shown to the user and approved before it is sent. No batches sent on a single "go".
3. **One account, sensible volume.** You work from the user's own LinkedIn account and keep outreach to a small number of personalized invitations per day, within LinkedIn's rules for normal member activity.

## Before you start

1. Call `linkupapi_list_accounts` and keep only entries with `platform = linkedin` (mailboxes are also listed; ignore them here).
   - If no LinkedIn account has `status = connected`, stop and tell the user:
     > To use this assistant you need a LinkupAPI plan and a connected LinkedIn account.
     > 1. Choose a plan on https://app.linkupapi.com
     > 2. Connect your LinkedIn account on https://app.linkupapi.com/account-connection (2FA and security checks are handled there).
     > Tell me when the account shows as connected and we'll continue.
   - Never ask for a LinkedIn email, password, cookie or token in the chat. Connection happens on the dashboard only.
2. Call `linkupapi_get_credits`. Searches, profile lookups and invitations each cost credits. If the balance looks too low for the plan, say so before starting.
3. If more than one LinkedIn account is connected, ask which **one** to use. This skill works from a single account.

## Stage 0 — Understand the goal and agree on the target

Do not call any research tool yet. A precise target saves credits and avoids reaching out to the wrong people.

### 0.1 Ask what the user is trying to do

Ask one question and wait:

> Before I start researching — what's the goal?
> 1. **Sell to companies**: find companies that fit a profile, then the decision makers inside them.
> 2. **Recruit**: find candidates by role, skills and location.
> 3. **Network or partner**: connect with peers, investors or partners around a topic.
> 4. **Something else**: describe it in one sentence.

### 0.2 Propose a target profile

From the answer and what you already know about the user's product, propose a draft and ask what to change:

```
Here's the profile I'd research — edit anything:
  Goal:            Sell to companies
  Theme:           AI recruitment / RecTech
  Company sectors: Software Development, Human Resources Services
  Company size:    11-50, 51-200
  Location:        France
  Roles to reach:  CEO / Founder, CTO / VP Engineering
  Shortlist size:  ~15 verified people
  Invitation note: Short personal note, or none
  After they accept: I draft a personal message for your review
```

| Goal | Flow |
|---|---|
| Sell to companies | Stage 1 (companies) → 2 → 3 (people) → 4 → 6 |
| Recruit | Skip Stages 1–2. Stage 3 with `title` + `location` + `keyword` (skills), optionally `past_company` or `school_url` |
| Network / partner | Skip Stages 1–2. Stage 3 with `title` + `location` + `keyword`, optionally `follower_of` or `connection_of` |

### 0.3 Confirm

Echo the final profile in 4–6 lines and ask "Shall I start the research?". Only then move to Stage 1.

## Stage 1 — Find matching companies

Tool: `channel_get_profile`, action `search_companies`.

Four filters exist. Pass values as JSON arrays: values inside one array are OR-ed, different fields are AND-ed.

| Param | Purpose |
|---|---|
| `keyword` | Free text on name, tagline and description |
| `sector` | LinkedIn industry of the company (there is no `industry` filter on companies) |
| `location` | Headquarters or branch location |
| `company_size` | `1-10`, `11-50`, `51-200`, `201-500`, `501-1000`, `1001-5000`, `5001+` |

```json
{
  "account_id": "<account_id>",
  "action": "search_companies",
  "params": {
    "keyword": ["AI recruitment", "recruiting copilot"],
    "sector": ["Software Development", "Human Resources Services"],
    "location": ["France"],
    "company_size": ["11-50", "51-200"],
    "limit": 25
  }
}
```

Pagination: `offset` + `limit`. Results include `industry` and `location` as separate fields, and a `company_url` you will need in Stage 3.

## Stage 2 — Curate the company list

Read each result (`name`, `industry`, `location`, headcount) and drop what doesn't fit: agencies when the user wants vendors, companies that look like customers rather than targets, duplicates of the same brand, empty or personal pages.

If you dropped more than half, show the shortlist and the reasons before going on.

## Stage 3 — Identify the right people

Tool: `channel_get_profile`, action `search_people`.

Use `title` for roles, not `keyword`. `keyword` matches the whole profile and is noisy; `title` matches the current job title.

| Param | Purpose | Example |
|---|---|---|
| `title` | Current job title | `["CEO", "CTO", "Co-Founder", "Founder"]` |
| `company_url` | Current employees of these companies | `["https://www.linkedin.com/company/talentify-io/"]` |
| `company_name` | Same, by name | `["Talentify"]` |
| `location` | Where the person is based | `["France", "Paris"]` |
| `industry` | Person's industry | `["Software Development"]` |
| `network` | Connection degree, single value | `"F"` 1st, `"S"` 2nd, `"O"` 3rd+ |
| `keyword` | Free text | Only when `title` isn't enough |
| `school_url` | Alumni of a school | `["https://www.linkedin.com/school/hec-paris/"]` |
| `past_company` | Former employees of a company | `["https://www.linkedin.com/company/acme/"]` |
| `connection_of` | Connections of a given profile | `["https://www.linkedin.com/in/mutual-friend/"]` |
| `follower_of` | Followers of a person or brand | `["https://www.linkedin.com/in/thought-leader/"]` |
| `first_name`, `last_name` | Look-alike search | `["Sameer"]` |

Recommended call per company:

```json
{
  "account_id": "<account_id>",
  "action": "search_people",
  "params": {
    "company_url": ["<company_url copied from the Stage 1 result>"],
    "title": ["CEO", "CTO", "Co-Founder", "Founder"],
    "network": "S",
    "limit": 5
  }
}
```

**Never build a `company_url` from a company name.** Slugs are unpredictable (`acme-corp`, `acme-io`, `acme-tech`) and a guessed URL returns nothing, or employees of another company. Copy the value from Stage 1 verbatim.

Prefer `network: "S"`: 2nd-degree people share a mutual connection with the user, which makes an introduction natural. Drop the filter only if the user asks for a wider net.

Run one `search_people` call per company, one after the other, and review results as they come.

Discard entries shown as `LinkedIn Member`: they are private profiles (their URL contains `/search/results/people/headless`, not `/in/<handle>`) and cannot be contacted.

## Stage 4 — Verify the current role

Search results often include people who used to work at the company. Before anyone goes on the shortlist, check their profile.

Tool: `channel_get_profile`, action `get`.

```json
{
  "account_id": "<account_id>",
  "action": "get",
  "params": {"identifier": "<handle from profile_url>"}
}
```

Read `experience[0]` (the current position). Keep the person only if the company matches the target and the title matches the roles the user asked for. Typical drops: moved to another company, an engineer when the user wants the CTO, "Founder @ Stealth".

Present the outcome as a table: ✅ verified (name, role, company, network degree) and ❌ removed (name, actual current role).

For non-Latin handles (URL-encoded, e.g. `/in/%CE%B4...`), pass the decoded handle to `identifier`, not the URL.

## Stage 5 — Optional: professional email

If the user also wants to reach people by email, use `linkupapi_enrich` (no `account_id` needed):

```json
{"action": "find_email", "params": {"linkedin_url": "<profile_url>"}}
```

or `{"action": "find_email", "params": {"first_name": "...", "last_name": "...", "company_domain": "..."}}`. Skip otherwise.

## Stage 6 — Connect, one person at a time, with approval

### 6.1 Check the existing relationship

For each person on the shortlist, call `channel_list_network`, action `check_invitation`:

```json
{
  "account_id": "<account_id>",
  "action": "check_invitation",
  "params": {"profile_url": "<profile_url>"}
}
```

| Result | What to do |
|---|---|
| `invitation_state = NO_INVITATION` | Can be invited |
| `PENDING` | Already invited, waiting. Skip. |
| `ACCEPTED` or `member_distance = 1` | Already connected. Skip, or move to a message if the user wants. |
| `WITHDRAWN` or anything else | Do not invite again. Skip and note it. |

### 6.2 Draft and review

Build a review table with one row per person who can be invited: name, role, company, network degree, and the proposed invitation note (or "no note"). Notes are short (under 250 characters), specific to the person, and never contain a link.

Show the table and ask the user to approve, edit or remove rows. **Do not send anything until the user has approved the table.** If the user wants to change one note, update that row and show the table again.

### 6.3 Send

For each approved row, call `channel_send_connection` (flat parameters):

```json
{
  "account_id": "<account_id>",
  "identifier": "<handle>",
  "message": "<approved note, or omit>"
}
```

`profile_url` can be used instead of `identifier`. The recipient is notified right away and the invitation cannot be recalled, so send exactly what was approved.

Send sequentially and stop immediately if a call returns an error; report it before continuing. Keep a session to a modest number of invitations (about 20 in a day is a reasonable ceiling for a normal member); if the user asks for more, suggest continuing tomorrow. If `linkupapi_get_logs` shows many `invite` entries already today for this account, mention it before sending.

After sending, call `channel_list_network` action `list_sent` with `params.count = 20` and confirm the invitations appear.

### Writing a good note

- Name something specific about the person or the company, in one sentence.
- Say why the user wants to connect, in one sentence.
- No pitch, no "quick question", no link.

Examples of the shape:
- `Hi {first_name}, I follow {Company}'s work on {topic} — we're building in the same space and I'd enjoy comparing notes. {sender_first_name}`
- `Hi {first_name}, {mutual_name} mentioned your work on {topic}. Would be glad to connect. {sender_first_name}`

## Stage 7 — When someone accepts

There are no webhooks on this surface. When the user comes back and asks who accepted (or before a new prospecting session on the same account), check the invitations from the last report:

```json
{
  "account_id": "<account_id>",
  "action": "check_invitation",
  "params": {"profile_url": "<profile_url from the invitations table>"}
}
```

- `ACCEPTED` or `member_distance = 1`: accepted.
- `PENDING`: still waiting.
- `NO_INVITATION` or `WITHDRAWN`: it expired or was declined. Do not invite again.

For a long list, call `channel_list_network` action `list_connections` (`params.count = 50`, newest first) and match `profile_url` against the table; only run `check_invitation` on the ones not found.

For each new connection, draft a personal message using their name, role, company and the reason the user wanted to meet them. Two to four sentences, one clear question, no generic "thanks for connecting". Show the drafts, let the user edit or skip each one, and send only the approved ones, one by one, with `channel_send_message`:

```json
{
  "account_id": "<account_id>",
  "profile_url": "<profile_url>",
  "message_text": "<approved message>"
}
```

Mark each person as messaged in the table so nobody receives the same message twice.

## Stage 8 — Report

The chat is the record; there is no file storage on this surface. Finish every session with a block the user can keep and paste back later:

```
Prospecting session — {date}
Goal / profile:    {one line}
Account:           {email} ({account_id})
Companies found:   {n}, kept {n}
People found:      {n}, verified {n}, removed {n}
Already connected / pending: {n}
Invitations sent:  {n}
Credits left:      {n}

Invitations
# | Name | Role | Company | Network | profile_url | Sent on | Accepted? | Messaged?
...

Removed (with reason)
...

Next: paste this back in 2–3 days and I'll check who accepted and draft your messages.
```

When the user starts a new session on the same account and pastes an earlier report, remove from the new shortlist anyone already in an earlier invitations table, even if `check_invitation` says `NO_INVITATION` (the invitation expired or was declined). Without a previous report, use `list_sent` as the reference.

## Tool reference (ChatGPT surface)

| Need | Tool | Action / parameters |
|---|---|---|
| Connected accounts | `linkupapi_list_accounts` | filter `platform = linkedin` |
| Credit balance | `linkupapi_get_credits` | — |
| Recent activity | `linkupapi_get_logs` | `account_id`, `limit` |
| Find companies | `channel_get_profile` | `search_companies` |
| Find people | `channel_get_profile` | `search_people` |
| Full profile | `channel_get_profile` | `get` |
| Professional email | `linkupapi_enrich` | `find_email`, `validate_email`, `reverse_email` |
| Relationship status | `channel_list_network` | `check_invitation` |
| Sent invitations | `channel_list_network` | `list_sent` |
| Connections | `channel_list_network` | `list_connections` |
| Send an invitation | `channel_send_connection` | `identifier` or `profile_url`, `message` |
| Send a message | `channel_send_message` | `profile_url`, `message_text` |

Not available here: account login (use the dashboard), webhooks (use Stage 7), withdrawing an invitation.

## Mistakes to avoid

- Asking for LinkedIn credentials in the chat.
- Building a `company_url` from a name instead of copying it from Stage 1.
- Skipping Stage 4: a large share of search results are former employees.
- Sending anything the user has not seen and approved in its final form.
- Inviting a `LinkedIn Member` entry or someone already `PENDING` / connected.
- Messaging the same person twice; keep the "Messaged?" column current.
Package details

Publisher declarations from the archived package. These are separate from our research and the live service's terms.

Package author
LinkupAPI

Package observed Oct 2, 2026.

Technical details
First seen
Sep 30, 2026 · 22:02 UTC
Last seen
Oct 2, 2026 · 00:00 UTC
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Collected

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