The Buffer Alternative
for Developers
Buffer deprecated its public API in 2019. Onepostly is API first with instant access and usage based pricing that scales.
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 35% less cost. Zero plan lock in.
Onepostly
Usage based · 1 account free forever
Production grade API available right now
Full REST API with instant keys for every account
Free up to 1 account with unlimited posts
First account free forever with no credit card
Usage based pricing from $5 per account
Costs drop as you scale without flat rate traps
30 second setup with instant API key
Start publishing immediately with zero waitlist
Video and Reels publishing included
Short form video and carousels included everywhere
Native MCP server for AI agents
Full tool coverage for Claude Cursor and AI agents
Buffer
Social media management tool
No public API since 2019 deprecation
Deprecated public API and restricted to private access
Per channel pricing adds up fast
Linear per channel costs with no volume discounts
No programmable multi tenant architecture
Built for manual creators rather than developers
No public rate limits or developer SLA
No publicly documented rate limits or uptime SLA
Feature and Pricing
Direct breakdown between Onepostly and Buffer
| Feature | Onepostly | Buffer |
|---|---|---|
| Public API | Yes available for every account | No public API deprecated in 2019 |
| API access time | 30 seconds with instant API key | Not available |
| Free tier | 1 account with unlimited posts and full API | 3 channels with manual UI only and no API |
| 50 accounts cost | $165 per month usage based | $250 or more per month |
| Video and Reels publishing | Full programmatic video support | Manual web UI only |
| AI Agent MCP Server | Native MCP server included | Not available |
| Official SDKs | TypeScript Python and REST | None |
Which Platform Is Right for You
Choose Onepostly if you
- Need programmatic API automation today
- Cannot wait for Buffer uncertain API rebuild
- Want lower costs as you scale past 20 accounts
- Need AI agent integration via MCP
- Prefer instant API access with full type safety
Choose Buffer if you
- Only need manual UI based scheduling for personal accounts
- Do not need any API access or automation
- Prefer an established brand for manual social marketing
Frequently asked questions
Common questions when comparing Onepostly with Buffer.
No. Buffer deprecated its public API in 2019. While they announced work on a new GraphQL API it remains in restricted early access with no public signup path or public rate limits. Onepostly offers an immediate production ready API.
Buffer charges a flat $5 per channel with extra plan fees. Onepostly offers your first account free forever then steps down from $5 to $3 and $1 per account. For 50 accounts Onepostly costs $165 per month compared to $250 or more on Buffer.
Yes. Onepostly free tier includes full API access so you can test immediately. Setup takes about 30 seconds with no approval queue.
Yes. Video Reels Shorts and TikTok publishing are fully supported across all accounts including the free tier.
Yes. Unlimited team members are included on all accounts with no per seat fees.