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Sendible API and MCP server

Sendible documents no API that reads your inbox, posts or reports, and its Zapier app only writes posts. Sign in to Sendible once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

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Sendible has no API for this. So we run one for you.

Sendible's own API, a GitHub MCP server and Cotlet compared
What you need Sendible's APIGitHub MCP serverCotlet
Inbox, replies, reports, approvals No No Yes, 14 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when Sendible changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 20, 2026. Sources: Sendible Help: Automate tasks using Zapier and Sendible · Zapier: Sendible triggers and actions · Sendible Help: Overview of the Priority Inbox · Sendible: Pricing and plan features

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to Sendible in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect Sendible to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 14 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. Sendible and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/sendible with its own method and path, such as POST /api/v1/sendible/workspaces/{workspace_id}/posts, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the Sendible API and MCP server do?

14 tools on your own Sendible account. Agents call them as operations of the MCP tools sendible_read and sendible_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
Sendible tools in Cotlet's MCP server and REST API
Tool What it does Access
list_workspaces Workspaces of your Sendible account: one per client, brand or location. read
list_profiles Connected social profiles of a workspace, with network and inbox alerts. read
list_users Users of a workspace with their type, so you know who can approve a post. read
list_posts Posts of a workspace calendar, filtered by status, network, profile, queue or dates. read
get_post Full text, media, profiles, status and approval state of one post. read
list_queues Queues of a workspace with their weekly time slots and how many posts wait in each. read
list_tasks Tasks from Publish > Tasks: posts waiting for approval and assigned messages. read
list_inbox_messages Comments and messages from Activity > Priority Inbox, with sentiment. read
get_report A Quick Report from Reports > All Reports for a date range: engagement or one network. read
create_post Schedule a post, add it to a queue or save it as a draft, for one or more profiles. writeasks first
send_for_approval Send a post to a user for approval, with a comment. writeasks first
decide_task Approve and send a post, or reject it with a comment. writeasks first
reply_to_message Reply to a comment or message in the Priority Inbox. writeasks first
archive_inbox_messages Move messages out of the Priority Inbox into Archived Only, or restore them. write

Scroll the table for all 14 tools.

Ask in plain words. Your agent does the rest.

All Sendible use cases

Is it safe to connect Sendible?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the Sendible API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while Sendible is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does Sendible have an API?

Sendible documents no public API (checked 20 Oct 2026). The only official automation is a Zapier app with four write actions: create a scheduled post, create a queued post, delete a post and approve a draft post. It has no triggers and reads nothing.

How do I get access?

Sign up free, open Sendible under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 14 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to Sendible yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so Sendible sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: create_post, send_for_approval, decide_task, reply_to_message wait for your OK by default. You can switch that off per tool for scheduled runs.

Which Sendible plan do I need?

Cotlet works inside your own Sendible account, so it needs no API plan. The features of your plan still apply: Sendible says approval workflows and editing a saved report are not on all plans. The daily posting limit also stays: 20 posts per workspace on a trial, then 100 on Core, 200 on Plus, 300 on Premium and 500 on Elite and Enterprise (Sendible Help: Account sending limits).

Which inbox messages can my agent read and answer?

Those in Sendible's Priority Inbox: Facebook Page comments, replies and direct messages, Facebook Ads comments, Instagram Professional comments, LinkedIn Company Page replies and YouTube comments. X, TikTok, Google Business, personal LinkedIn profiles and Instagram direct messages are not in it. Replies work for Facebook, Instagram and LinkedIn (Sendible Help: Overview of the Priority Inbox, Reply to a message).

What can it not do?

create_post takes text, one link and one image URL; it does not upload files or video. Nothing deletes a published post: Sendible itself allows that only for Facebook posts in the Social feeds view (Sendible Help: Can I delete posts on my social accounts). Billing, users, permissions and connecting social accounts stay in Sendible.

Should I use a Sendible MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when Sendible changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with Sendible?

No. Cotlet is independent and not affiliated with Sendible.

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