The Zernio Alternative
for Developers
Connect as many accounts of each platform as you need with 1 account free forever, native MCP server, and transparent usage based pricing.
No credit card required
import { Configuration, PostsApi } from "@onepostly/sdk";
const posts = new PostsApi(
new Configuration({ apiKey: process.env.ONEPOSTLY_API_KEY }),
);
await posts.createPost({
createPostBody: {
text: "Ship once. Post everywhere.",
mediaUrls: ["https://cdn.example.com/launch.png"],
destinations: [{ accountId: "conn_x_123" }, { accountId: "conn_ig_456" }],
},
});import os
from onepostly import ApiClient, Configuration
from onepostly.api.posts_api import PostsApi
posts = PostsApi(ApiClient(
Configuration(access_token=os.environ["ONEPOSTLY_API_KEY"]),
))
await posts.create_post(create_post_body={
"text": "Ship once. Post everywhere.",
"mediaUrls": ["https://cdn.example.com/launch.png"],
"destinations": [{"accountId": "conn_x_123"}, {"accountId": "conn_ig_456"}],
})curl -X POST https://api.onepostly.com/v1/posts \ -H "x-api-key: op_YOUR_KEY" \ -H "Content-Type: application/json" \ -d '{ "text": "Ship once. Post everywhere.", "mediaKind": "image", "mediaUrls": ["https://cdn.example.com/launch.png"], "destinations": [ { "accountId": "conn_x_123" }, { "accountId": "conn_ig_456" } ] }'Same platform reach. Up to 50+ less cost. Zero plan lock in.
Onepostly
Usage based · 1 account free forever
Connect unlimited accounts of each platform
Connect unlimited accounts without profile barriers
1 account free forever with no credit card
First account free forever with unlimited posts
Fair usage based pricing
Prices drop to $3 and $1 per account as you grow
Native MCP server for AI agents
Full tool coverage for Claude Cursor and AI agents
Instant API key in 30 seconds
Start posting immediately with zero approval wait
Official TypeScript and Python SDKs
Complete type safety across TypeScript and Python
Zernio
Social media scheduling API
Profile limits 1 account per platform per set
Restricts each profile to 1 account per platform
Higher entry pricing per account
Charges $6 per account instead of $5 on Onepostly
Complex profile grouping structure
Forces multi account setups into fragmented sets
Pass through fee markups
Applies markups that complicate monthly bills
Feature and Pricing
Direct breakdown between Onepostly and Zernio
| Feature | Onepostly | Zernio |
|---|---|---|
| Accounts per platform | Unlimited accounts of each network | 1 account per platform per profile |
| Paid entry price | $5 per account | $6 per account |
| AI Agent MCP Server | Native MCP server included | Supported |
| Workspace structure | Unified connection pool per organization | Social set fragmentation |
| Official SDKs | TypeScript Python and REST | Multiple languages |
Which Platform Is Right for You
Choose Onepostly if you
- Manage multiple accounts on the same platform for a single client or project
- Want lower $5 per account entry pricing instead of $6
- Need a clean unified organization workspace without rigid social sets
- Building autonomous AI agent tools with MCP
- Prefer straightforward usage billing with no unexpected add on markups
Choose Zernio if you
- Specifically need 2 free accounts and will never connect more
- Manage exactly 1 account per platform per profile
- Need languages outside TypeScript and Python for SDKs
Frequently asked questions
Common questions when comparing Onepostly with Zernio.
Zernio restricts users to 1 account per platform per profile, meaning two Instagram accounts require two separate social sets. Onepostly allows you to connect unlimited accounts per platform under a single workspace with $5 entry pricing.
Onepostly has no single account per platform rule. You can connect 2, 10, or 50 accounts of any platform to your organization and publish to any combination in a single API call.
Onepostly provides 1 account free forever then $5 and $3 and $1 per account. Zernio charges $6 per account on earlier tiers.
Yes. Onepostly includes an official native MCP server for Claude Cursor and autonomous agent frameworks.
You can sign up and copy your API key in 30 seconds with no credit card required.