TL;DR
- HeyReach is a multi-sender LinkedIn outreach tool, with an official API and MCP server on its lowest paid plan and an official CLI. As a HeyReach alternative for AI agents, Curviate is a LinkedIn API, CLI, MCP server and TypeScript SDK that your own agent or software calls directly. HeyReach suits ready-made campaigns across many senders; Curviate suits an agent that decides each LinkedIn action.
- HeyReach's public OpenAPI file lists 88 operations. 44 of them work on HeyReach's own campaigns, leads, lists and blacklists. The LinkedIn actions themselves (connect, message, InMail, view, follow, like) run as sequence steps.
- Curviate's OpenAPI document lists 159 operations: 130 LinkedIn actions and reads plus 29 developer endpoints. Search, posting, commenting, feed, notifications, company pages, groups and job postings are not in HeyReach's OpenAPI.
- Per LinkedIn account: HeyReach Growth is USD 79 per month, or USD 63 per month billed yearly, under 10 senders. Curviate is EUR 20 per month, or EUR 16 billed annually, excl. VAT, with every interface included and no action metering.
If you already work with an AI agent (Claude, ChatGPT, Claude Code, Codex, Cursor) and want it to run LinkedIn, HeyReach looks like an obvious pick. It has a public API, an MCP server and a CLI. What they mostly control is HeyReach's campaign engine, and LinkedIn only through it. I build Curviate, and on October 2, 2026 I went through HeyReach's public pages and its OpenAPI file. The HeyReach facts below come from that read.
What is a good HeyReach alternative for AI agents?
It depends on who makes the decisions. If your agent decides each LinkedIn action itself, Curviate fits. If you want ready-made campaigns across many senders, HeyReach does.
HeyReach is built to run one campaign across many sender accounts, yours or your clients'. Its sequencer and inbox decide the follow-ups. The Agency plan adds workspaces per client and white-label.
Curviate is for when your agent or your code decides what happens on LinkedIn, one call at a time: who to search, which post to comment on, what to answer. More of LinkedIn is callable directly than through HeyReach's API: live search across people, companies, posts, jobs, groups and services; posting, commenting and reacting; the home feed and notifications; company page inboxes; job postings. One API key and one per-account budget cover REST, CLI, MCP and SDK, and repeat profile reads inside 12 hours spend no LinkedIn budget. It is also cheaper per account. HeyReach's flat Unlimited plan, USD 2,999 per month for up to 300 senders, only undercuts it at well over 100 senders.
Is HeyReach legit, and how does it compare with Curviate?
Yes. HeyReach is a legitimate product with public prices and a public OpenAPI file. What differs is what you buy: a campaign engine your agent steers, or LinkedIn itself for your agent to act on. Sources are HeyReach's pricing page, help center and API docs, and Curviate's pricing and OpenAPI document. Where a cell says "Not in its OpenAPI", I did not find it in that file.
| HeyReach | Curviate | |
|---|---|---|
| What you buy | Multi-sender campaign tool with sequences and inbox | LinkedIn layer for your agent or software |
| Price per account, monthly billing | USD 79 per month (Growth, under 10 senders) | EUR 20 per month, excl. VAT |
| Price per account, yearly billing | USD 63 per month (USD 47 from 10 senders) | EUR 16 per month (EUR 192 a year) |
| Public API | OpenAPI 3.1, 88 operations, 300 requests per minute | OpenAPI 3.1, 159 operations |
| LinkedIn actions callable directly | Reply in an existing conversation, mark seen, read inbox, check a connection | 130 actions and reads |
| Live search, posting, commenting, feed | Not in its OpenAPI | Yes |
| MCP server | Yes, URL and key per workspace; tool count not published | Hosted, OAuth or API key |
| Webhooks | 5 management operations, 12 event types | 11 operations, 19 event types delivered |
| Sales Navigator, Recruiter | Connect and re-login; InMail and open-profile checks in sequences | 12 and 23 operations (beta, licence required) |
What can the HeyReach API do?
Mostly, it manages HeyReach. Half of its 88 operations (44) work on HeyReach's campaigns, leads, lists and blacklists, and most of the rest administer accounts, workspaces and webhooks. The LinkedIn actions run as sequence steps. HeyReach publishes its API reference and an OpenAPI 3.1 file at docs.heyreach.io/openapi.json. Authentication is an X-API-KEY header, and the limit is 300 requests per minute. I counted the file by tag: 88 operations over 87 paths. Counted the same way, Curviate's OpenAPI document has 159. Grouped by what each operation works on:
| Operations work on | HeyReach (88) | Curviate (159) |
|---|---|---|
| The vendor's campaigns, sequences and stats | 22: create, from template, sequence, schedule, settings, start, pause, resume, add leads and senders, statistics | None, there are no campaigns |
| Leads, lists, tags and blacklists stored in the vendor | 22 | None |
| Email enrichment | 2 | None |
| LinkedIn messaging | 5: list conversations, read a chatroom, reply in an existing conversation, mark seen | 15: start a chat, send, edit, delete, react, attachments, search, InMail |
| LinkedIn profiles and network | 2: a sender's network, is-connection check | 20: profiles, connections, invitations, follows, endorsements, analytics |
| Posts, comments, feed, notifications | Not in its OpenAPI | 25 |
| Search and groups | Not in its OpenAPI | 12: people, companies, posts, jobs, groups, services |
| Company pages | Not in its OpenAPI | 13, incl. admin inbox and reply as page |
| Job postings | Not in its OpenAPI | 10 |
| Sales Navigator, Recruiter | Re-login only (counted under accounts) | 12 and 23 (beta, licence required) |
| Connecting and managing LinkedIn accounts | 18: credentials or cookies, PIN, reconnect, re-login, proxies, inbox settings, move to workspace | 10: credential or cookie connect, checkpoints, account settings |
| Workspaces, users, API keys, seats | 12 | 3 (seats) |
| Webhooks | 5 | 11 |
| Per-account limits and safety events | Read only: account responses include per-action limits and cooldowns; no operation sets them | 5: read and change the safety policy, list limit hits |
HeyReach's own sequence schema shows how this works. The step types are CONNECTION_REQUEST, MESSAGE, INMAIL, VIEW_PROFILE, FOLLOW, LIKE_POST and FIND_EMAIL, plus checks and email hand-offs. An agent using the API writes a sequence and adds leads. HeyReach then performs the steps on its own schedule, with at least 3 hours between two actions (sequence help). SendMessage needs a conversation id, so it can only answer threads that already exist.
Reads work differently too. GetLead returns lead details for a profile URL, including HeyReach's email enrichments. The file does not say whether LinkedIn is read live, and I found no company or post read in it. In Curviate, reading a profile again within 12 hours costs no LinkedIn budget (caching guide).
Can the HeyReach MCP server and CLI run LinkedIn for your agent?
They run HeyReach for your agent, and HeyReach runs LinkedIn. Per its MCP page and help article, each workspace gets its own MCP URL and key, and clients include Claude, Cursor, VS Code, Make, n8n and Clay. Its pricing page describes the use in its own words: agents that "split lead lists, create LinkedIn campaigns with custom messages, tag replies by sentiment and send them to your CRM". It does not publish a tool count.
The HeyReach CLI (v1.0.2, May 2026, per its releases repo) manages "campaigns, leads, lead lists, inboxes, LinkedIn accounts, webhooks, and workspace settings" and installs a skill for Claude Code.
Curviate's CLI and hosted MCP server expose the LinkedIn actions themselves. The CLI prints JSON when piped, returns stable exit codes, trims output with --fields and shows a write before sending it with --preview. This one command finds this week's posts on a topic, which an agent can then read, rank and comment on:
# Find this week's LinkedIn posts about a topic
curviate search posts --keywords "LinkedIn MCP" --date-posted past_week --limit 20
The same action is a REST call, an MCP tool and an SDK method on one API key (interfaces). No campaign is involved. If you want follow-up rules, your agent or Claude Code writes them on top of these calls.
What is HeyReach's pricing, and is it worth it for an agent?
HeyReach's pricing starts with Growth at USD 79 per sender per month, USD 71 billed quarterly or USD 63 billed yearly. Curviate costs EUR 20 per account per month, excl. VAT. On both, one seat or sender is one connected LinkedIn account. From 10 senders HeyReach charges USD 59 per month, or USD 47 per month billed yearly (plans article). Agency covers 25 senders for USD 999 per month (USD 799 billed yearly), Unlimited up to 300 senders for USD 2,999 per month. API, webhooks and MCP are on every paid plan. HeyReach prices in USD and Curviate in EUR; I left both unconverted.
| Accounts | HeyReach, monthly | HeyReach, billed yearly | Curviate, monthly | Curviate, billed annually |
|---|---|---|---|---|
| 1 | USD 79 | USD 63 per month | EUR 20 | EUR 16 per month |
| 5 | USD 395 | USD 315 per month | EUR 100 | EUR 80 per month |
| 10 | USD 590 | USD 470 per month | EUR 200 | EUR 160 per month |
| 25 | USD 999 (Agency) | USD 799 per month | EUR 500 | EUR 400 per month |
HeyReach's price buys the sequencer, the unified inbox, 100 one-time enrichment credits per sender and, on Growth, a dedicated residential proxy per sender. Agency and Unlimited ask you to bring your own proxies. Limits come with it. You can configure daily limits per action for each sender (sending limits), and HeyReach freezes an account at 200 actions a day (safety article). Its help articles disagree on connection requests. The safety article freezes an account near about 100 a week, a rule it says you cannot override. A newer article caps them at 200 a week per sender and up to 40 a day, with 25 as the default.
Curviate's price covers every interface and no campaign logic. It meters nothing. Each account has adjustable ceilings per action and a warm-up for new seats (safety). An agent that crosses a ceiling gets a warning, or a refusal once the account's policy is set to enforce.
HeyReach is worth it if you will use the campaign engine you pay for. If your agent does the planning, you are paying for a second planner it does not need.
What do you lose when you switch from HeyReach?
Your LinkedIn accounts move freely, because HeyReach only connects to them. Campaign state, lists and tags, CRM mappings and the sequencing logic stay behind:
- HeyReach knows where every lead stands in its sequence. Pull leads and statuses out and let live sequences run to the end, or someone hears your opening line twice.
- Export lists, tags, blacklists and enrichment results as well. Curviate keeps no lead lists of its own.
- The HubSpot sync, webhook and Zapier mappings stay in HeyReach. Your code listens to Curviate's webhooks (19 event types) instead.
- The sequencing logic moves to your agent or your code. Your agent sets the pace, without 3-hour gaps it did not choose.
When should an AI agent use Curviate instead of HeyReach?
When your agent plans the work itself. An agent on HeyReach steers HeyReach's campaign engine. An agent on Curviate searches, reads, writes and reacts on LinkedIn, within limits per account. Try it on one account for 3 days, no card, with Claude Code or Codex on the API, CLI, MCP or SDK (pricing).
Not affiliated with LinkedIn Corporation. HeyReach prices and features above are as published on its pages on October 2, 2026.