Postkey vs Inrō
Postkey vs Inrō
Postkey is the most agentic DM automation tool. Both automate Instagram comments and DMs, and both have an MCP server. Postkey's reaches every account on your plan, answers Messenger as well as Instagram, and schedules to far more networks.
The short answer
Postkey is the most agentic DM automation tool: one MCP connection lets your AI assistant build and switch on DM automations, answer the inbox, and schedule posts to 10 networks, across every account on your plan. Inrō automates Instagram only and bills each Instagram account as its own subscription; one Postkey plan holds up to 15 accounts, and one connection lets an assistant work across all of them.
Updated October 20, 2026 (Inrō's pages)
What an AI agent can do in each
Postkey is the most agentic DM automation tool: one MCP connection lets your AI assistant build and switch on DM automations, answer the inbox, and schedule posts to 10 networks, across every account on your plan. Here is the same list for Inrō, from its own pages on October 20, 2026.
| Inrō | Postkey | |
|---|---|---|
| MCP server | Yes, 41 tools (help center), "more than 25" (product page) | Yes, up to 45 tools |
| Builds and switches on DM automations | Yes | Yes, and switching on waits for your yes |
| Reads and answers the DM inbox | Yes | Yes, each reply waits for your yes by default |
| Schedules and publishes posts | Yes, to Instagram | Yes, to Instagram, TikTok, Facebook, Telegram, LinkedIn, YouTube, Threads, Pinterest, Bluesky and Google Business |
| Accounts one connection reaches | One Instagram account per connection (agencies get a partner connection) | Every account on your plan, up to 15 |
| Plans that include it | Pro or trial | Every plan, inside the plan's limits |
| Sign-in | One-click sign-in or a private key | OAuth 2.1 with PKCE, or an agent key |
| In the official MCP Registry | Not found | Not yet |
"Not listed" and "None found" mean we could not find it on Inrō's own pages on October 20, 2026, not a statement by Inrō.
Sources: Inrō help: MCP server
Why Postkey is the most agentic DM automation tool
Postkey was built for AI agents from the start, not given an API afterwards. An agent can do the whole job, not only press a button you set up by hand:
- Build, edit and switch on DM automations: comment to DM, keyword DMs, follow to unlock, collecting emails.
- Read the inbox, draft replies and send them once you say yes.
- Write, schedule and publish posts, and set the DM keyword each post's comments reply to.
- Find and tag contacts, and report how posts and automations did.
- Up to 45 tools in one MCP server, with OAuth sign-in or an agent key, and a skill file that teaches the agent the rules.
- Approvals, limits and protection from instructions hidden in DMs built in, so you can let an agent run it.
Side by side
| Inrō | Postkey | |
|---|---|---|
| Comment to DM and keyword DMs | Yes | Yes |
| Follow to unlock | Yes (An Ask for Follow step) | Yes |
| Collect emails in the DM | Yes | Yes |
| Shared inbox | Yes | Yes |
| AI replies | Yes (AI Agent on Pro) | From Create |
| DM channels | Instagram and Messenger | |
| Post scheduler | Instagram, TikTok, Facebook, Telegram, LinkedIn, YouTube, Threads, Pinterest, Bluesky and Google Business | |
| Instagram accounts | "Each Instagram account you connect is its own account in Inrō, with its own contacts, automations and its own plan. They are not pooled. Two accounts on Pro are two Pro subscriptions." | Up to 15 on one plan, sharing one contact allowance |
| How usage is billed | Pro is priced by activated contacts each period, from 500 contacts up. | Plans include contacts each month, shared by all the plan's accounts; extra contacts are charged, never cut off |
Sources: inro.social/pricing, Inrō help: subscription plans, Inrō help: MCP server
What each costs
Inrō's list prices in euros, as its pricing page showed them on October 20, 2026, then Postkey's in US dollars. Monthly billing unless it says yearly.
| Plan | A month | Billed yearly | Instagram accounts | Limit |
|---|---|---|---|---|
| Inrō Free | €0 | Not shown | 1 | 100 activated contacts a period, 3 active scenarios |
| Inrō Pro | €12.99 | Not shown | 1 | Priced by activated contacts: from 500, rising with use |
| Inrō Annual | Not published | €1249 a year | 1 | 10,000 activated contacts a period |
| Postkey Free | $0 | Free | 2 | 25 contacts a month |
| Postkey Essential | $15 | $144 a year | 2 | 250 contacts a month |
| Postkey Create | $34 | $300 a year | 5 | 2,500 contacts a month, Postkey AI |
| Postkey Pro | $85 | $708 a year | 10 | 7,500 contacts a month, Postkey AI |
| Postkey Advanced | $175 | $1428 a year | 15 | 25,000 contacts a month, Postkey AI |
List prices before tax. Plans change; check each pricing page before you buy.
Sources: inro.social/pricing
Where Inrō is a good fit
- A free plan with no card, and Pro starts low.
- A full read and write MCP server: it builds scenarios, sends DMs and publishes Instagram posts.
- An AI Agent included on Pro, payments in DMs, and a detailed help center.
Where Postkey is the better fit
- You run more than one Instagram account and want one plan and one agent connection for all of them.
- You want Messenger DMs automated next to Instagram.
- You post beyond Instagram: Postkey schedules to Instagram, TikTok, Facebook, Telegram, LinkedIn, YouTube, Threads, Pinterest, Bluesky and Google Business.
- You want sends, replies and switch-ons to wait for your yes by default.
Switching from Inrō
- 01
Connect your Instagram account to Postkey with Meta's sign-in.
- 02
Ask your assistant to rebuild your keywords and links as Postkey automations, or paste them in yourself.
- 03
Check the DM on the phone preview, then switch it on. Turn the Inrō version off so people do not get two DMs.
Questions
Yes. Inrō's help center describes a read and write MCP server that can build scenarios, send DMs and publish Instagram posts, on one Instagram account per connection.
Yes, in Inrō's words: "Two accounts on Pro are two Pro subscriptions." One Postkey plan holds up to 15 accounts.
We found Instagram only on Inrō's pages. Postkey schedules to Instagram, TikTok, Facebook, Telegram, LinkedIn, YouTube, Threads, Pinterest, Bluesky and Google Business.
Yes. Postkey's Free plan has 25 contacts a month and 5 scheduled posts a week, and paid plans start with a free trial.