The PlugKit Blog

Building the social layer for AI agents

Guides, patterns and deep-dives on connecting AI agents to social media — one API and MCP server for Instagram, WhatsApp, X, TikTok and more.

$ claude mcp add -t http plugkit https://api.plugkit.co/mcp
Pricing··6 min read

Loomly pricing in 2026: what each plan includes per user

Loomly bundles users into the plan instead of charging per seat. Two published prices, the per-user and per-account math, and the five features that are the whole reason to pay 5x more.

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Comparison··8 min read

Sprout Social alternatives: 8 tools that cost less per seat

Sprout bills per seat, so a three person team pays three times. Eight alternatives ranked by billing unit, with the real monthly cost for 3 users and 10 profiles on each one.

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Pricing··7 min read

Vista Social pricing: the per-profile cost and what the agency tier adds

Vista Social charges roughly $6.50 per social profile on every tier, so the tiers sell users, DM contacts and white labelling instead. The full grid, the three add-ons, and the one number the page contradicts itself on.

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Reference··7 min read

Instagram Basic Display API is gone: what to use instead

The API half the tutorials on the internet still point at was switched off in December 2024. What replaces it depends entirely on the account type, and for one of them nothing does.

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Pricing··6 min read

Sprout Social plans and pricing: the real per-seat cost

Four published plans, one pricing unit almost everyone misreads: the seat. What each tier adds, what three team sizes really pay per month, and when a cheaper tool or an API does the same job.

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Guide··7 min read

MCP server hosting: hosted, self-hosted or serverless, with the real trade-offs

The spec revision of July 28, 2026 removed protocol-level sessions, so a remote MCP server can finally be stateless. Here is what that changes for hosted, self-hosted and serverless, and the work nobody counts.

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Reference··7 min read

Social media analytics API: the metrics you can actually pull, per platform

A per-platform table of the metrics that exist, the windows they cover and the freshness you get, plus the four reasons two dashboards never show the same number for the same post.

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Guide··6 min read

WhatsApp MCP server: send and read WhatsApp messages from an AI agent

The tools an agent gets, the 24-hour customer service window that decides whether a message sends at all, approved templates, the per-message bill, and the WhatsApp Web shortcut that costs you the number.

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Guide··7 min read

Instagram comment bots: auto-reply, moderation and what the API permits

Reply, hide and delete are in the official API. Commenting on strangers' posts is not, and the tools that sell it need your password.

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Guide··7 min read

Social media inbox: one place for DMs and comments, and the API version

Which platforms let a unified inbox read your DMs, which ones charge for it, which ones refuse outright, and what it costs to buy one or build one.

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Guide··7 min read

TikTok automation: what the official API allows, and what gets videos flagged

The only TikTok automation the official API supports is publishing. Direct post against inbox upload, the 6 requests per minute ceiling, the audit that lifts private viewing mode, and the tools with prices read today.

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Guide··7 min read

WhatsApp automation: what the Cloud API allows for messages, templates and replies

The 24 hour window decides everything: free-form inside, approved template outside. The Cloud API limits read today, what a WhatsApp bot does differently, and the cost per message.

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Guide··7 min read

AI marketing agents: the jobs they can own, and the three that ship real work

Three marketing jobs an agent finishes without you: publishing, inbox triage, reporting. Four it does not. The tool list each one needs, the platform limits that cap it, and the monthly cost of the stack.

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Pricing··6 min read

Buffer pricing in 2026: the per-channel math and when an API is cheaper

Buffer meters channels, not brands or seats. Essentials at $5 a channel, Team at $10, the no-cost tier capped at 3 channels, the volume discount Buffer will not put a number on, and the totals that decide it.

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Reference··7 min read

MCP server OAuth: how a remote server authenticates an agent, and what breaks

Every step of MCP authorization, with the live responses from a hosted server: the WWW-Authenticate challenge, the two metadata documents, where the client ID comes from now that dynamic registration is deprecated, and the 401 loop everyone hits.

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Pricing··6 min read

Later pricing in 2026: plans, limits and the cost per social set

Later bills per social set, not per profile or per seat. The three published tiers, what a set contains, the post cap that bites on Starter, the four add-ons, and the cost per profile at each step.

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Comparison··7 min read

LinkedIn automation tools: what the API allows and what gets accounts restricted

Two kinds of tool answer the same search. One drives your LinkedIn account from a server, which the User Agreement forbids. The other calls the official API, which allows exactly three write actions. Prices and limits for seven tools, checked today.

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Guide··6 min read

LinkedIn MCP server: post, read and reply from Claude or ChatGPT

An MCP server hands your LinkedIn account to an agent as tools. Publishing works. Reading your own comments needs a permission LinkedIn grants to approved developers only, and DMs are closed to everyone. Here is the honest map, plus the setup command.

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Guide··8 min read

Instagram bots in 2026: what they do, what gets you banned, and the API way

Follow-unfollow tools, comment and DM automation on the official API, and agents are three different products sold under one word. The policy clauses that separate them, and the published rate limits.

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Pricing··7 min read

Metricool pricing in 2026: what each plan includes and the cost per brand

Metricool bills per brand, not per seat. The published rates from 1 to 50 brands, the cost per brand at every step, the two add-ons billed on top, and the point where an API is cheaper.

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Pricing··8 min read

WhatsApp Business API pricing in 2026: per-message rates, templates and what a BSP adds

Meta bills per delivered template, by category and country. The four categories, the 24 hour and 72 hour free windows, how volume tiers cut utility rates, and where to read your own rate card.

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Guide··7 min read

ChatGPT social media automation: what it can post, and what it needs to post it

ChatGPT writes the post. It cannot send it anywhere until you give it a connector. The setup is four steps, and OpenAI's own rule on write confirmation decides what you can automate.

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Reference··8 min read

Social media access tokens: long-lived, refresh, and why they keep expiring

Six platforms, six clocks, six refresh calls. The lifetimes below come from each platform's own documentation, read on October 12, 2026, with the refresh request for each one.

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Guide··8 min read

AI content repurposing agent: one draft, one variant per platform, published

Cross-posting sends one text everywhere. Repurposing writes one variant per platform first. The difference is a rewrite step, and the per-platform limits that make it mandatory rather than nice to have.

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Reference··8 min read

MCP or REST API for your agent: which one to give it, and when

The decision is not about which protocol is better. It is about whether your agent needs to discover what it can do, or already knows. One table, the token cost, and the split I run in production.

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Guide··7 min read

Comment-to-DM automation on Instagram: how it works and what it converts

The webhook, the private reply, the seven-day window and the one-message-per-comment rule. The setup in five steps, the button that keeps your link out of trouble, and the four numbers that tell you if it converts.

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Comparison··8 min read

n8n social media automation vs an AI agent: when a workflow isn't enough

Which social platforms n8n has a node for and which it does not, the Graph API detour for Instagram, the line where a deterministic workflow stops being the right tool, and a workflow JSON that hands the hard part to an agent.

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Guide··8 min read

Hermes Agent skills for social media: post, reply and schedule from your agent

A skill is a markdown file. A plugin is Python. Neither one holds an Instagram token. Here is which layer does what, and how to give Hermes real accounts to work on.

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Comparison··9 min read

OpenClaw vs Hermes Agent for social media: which one actually posts, replies and schedules

Two MIT-licensed self-hosted agents, two cron schedulers, two native MCP clients, and nothing built in that posts to Instagram. Here is what separates them, and what you still have to add.

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Tutorial··8 min read

How to automate Instagram posts (with an AI agent, step by step)

Four ways to automate Instagram posts, what each costs, the Meta limits that apply to all of them, and the agent setup that schedules a week of posts from one sentence.

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Guide··8 min read

Instagram API in 2026: the Graph API after Basic Display, pricing, limits and a Python example

What is left of the Instagram API since Basic Display shut down: two logins, two access levels, no listed fee, the limits that matter and a Python script that publishes a post.

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Guide··7 min read

Claude as your social media manager: skills, MCP, and what it can actually post

A skill guides the work; connected tools carry it out. Here is how Claude can publish, and the work I would still not hand over.

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Reference··7 min read

Instagram MCP server: post, reply and read insights from Claude

The tools an Instagram MCP server exposes, the limits to check before connecting it, and the one command that connects it to Claude Code.

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Comparison··8 min read

Hootsuite alternatives in 2026: Buffer, Later, Metricool, Publer and 4 cheaper ways to post

Nine schedulers priced from their own pages the same day, the billing unit that actually decides your bill (seats, channels, social sets, brands), and which ones an AI agent can drive.

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Guide··7 min read

Bluesky API and scheduling: how to post programmatically

Authenticate with an app password, write a record, respect 5,000 points an hour. And the honest part: nothing in the protocol schedules a post, so you queue it yourself or you pay a tool to hold it.

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Guide··7 min read

Do scheduled posts get less views? What the data says

The platforms list their ranking signals in public, and scheduling is not there. Here is what really costs a scheduled post its reach, with the API limits behind it.

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Guide··10 min read

Can you schedule an Instagram post, story or reel?

Posts, carousels and reels schedule in the app. Stories use Business Suite or eligible APIs. Embedded audio and catalogue music have different rules.

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Pricing··10 min read

ManyChat pricing in 2026: what you really pay per contact

Five plans, one meter: the Active Contact. The published rates, the overage per extra contact, and the exact contact counts where each upgrade starts paying for itself.

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Guide··7 min read

Post to all social media at once: the tools that do it, and the API way

Compare eight tools for publishing across supported accounts, with dated prices, free plan limits, media requirements and extra X costs.

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Guide··8 min read

Where to find scheduled posts on Instagram, LinkedIn, Facebook and X

The native menus, published scheduling limits and what to check when a post was scheduled through another tool.

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Pricing··8 min read

Blotato pricing in 2026: the three plans, the API, and eight alternatives

Blotato costs $29, $97 or $499 a month. Here is what each plan buys in accounts, AI credits and contacts, what the API and MCP server actually expose, and eight alternatives priced the same day.

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Comparison··8 min read

Post Bridge, Upload-Post, Late, Mixpost and Bundle.social: five posting APIs compared

Five social posting APIs compared on price, account or profile limits, and MCP integrations, plus what the Late-to-Zernio rebrand changes for existing users.

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Pricing··8 min read

Ayrshare pricing explained, and the Ayrshare alternative for each budget

Ayrshare starts at $149 a month for one social profile. Here is what that profile buys, where the meter turns in Ayrshare's favour, and the eight alternatives worth pricing against it.

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Comparison··8 min read

Instagram automation tools: the honest list (agents, schedulers and DM tools)

Eight tools in three families, what each one actually automates on Instagram, what Meta's API lets them do, and the prices I read on their own pages today.

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Guide··9 min read

Social media API: the 2026 guide for developers and agents

Seven official APIs, their publish limits and their approval queues, then the arithmetic on building direct against paying for a unified social media API. Every number checked on September 10, 2026.

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Guide··6 min read

Threads API: how to post and read via the official API

The Threads API publishes in two calls, caps you at 250 posts and 1,000 replies per 24 hours, and needs no app review for your own profile. Endpoints, scopes and limits read from Meta's docs on September 10, 2026.

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Guide··8 min read

Instagram auto reply: native vs automation (DMs, comments, stories)

Start with the native replies available for your Instagram account. Compare triggers, follow-ups and reporting, then decide whether you need an API or an agent.

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Guide··9 min read

Instagram DM automation: tools, rules, and the 24-hour window

The 24-hour window decides what your automation can send and when. Meta's own rules, the private reply exception, six tools with prices checked today, and the API call behind all of them.

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Guide··7 min read

AI social media manager: human vs tool vs agent (what actually runs an account in 2026)

Three ways to run an account in 2026: hire a human, buy a scheduler with an AI button, or give an agent API access. Real prices, real limits, and the one thing only the third can do.

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Guide··8 min read

Instagram automation in 2026: what Meta allows, what gets you flagged

What Meta documents for publishing, comments and DMs: account requirements, messaging windows, quotas and the limits of official API approval.

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Comparison··9 min read

Postiz alternative: hosted, agent-ready, no self-hosting

Postiz is a good open-source scheduler. Self-hosting it means Postgres, Redis and Temporal on a box you patch. Here is what the cloud costs, what the API does, and hosted options.

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Comparison··9 min read

Zernio alternative: PlugKit vs Zernio on pricing, MCP and comment-to-DM

Zernio bills per connected account, PlugKit bundles accounts then bills extras. The first crossover sits at 27 accounts. Here is the arithmetic, the MCP difference, and six other options.

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Tutorial··7 min read

Hermes Agent setup: install it and connect Instagram, LinkedIn and X in 15 minutes

The one-liner install, the MCP command that hands Hermes the whole PlugKit tool list, the exact output you should see, and the one startup quirk that makes people think it failed.

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Comparison··8 min read

Best ManyChat alternatives in 2026: free, open source, cheaper, and agent-ready

A ManyChat alternative is easy to find and hard to pick. Seven tools with prices checked today, what each does on Instagram DMs, and the Meta rule that limits all of them.

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Comparison··8 min read

Social media MCP servers compared: Sprout, Buffer, Metricool, Hootsuite, Zernio, Postiz, PlugKit

Seven social media MCP servers, side by side: who publishes, who only reads, who touches DMs and comments, and the entry price for each. Checked September 4, 2026.

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Guide··6 min read

How to give your AI agent social media access (one API, every platform)

Every social platform ships a different SDK, OAuth dance and rate limit. Here's how to let an AI agent publish, read and reply across all of them through a single API and MCP server.

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