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Postiz

Postiz API

Yes. Postiz publishes a public REST API. See docs.postiz.com/public-api for pricing details.

Open API docsTry Postiz
Public REST API documentedAgent-readiness 3/10
Data from Buddy's database, auto-rechecked weekly

What is the Postiz API?

The Postiz API is a public REST interface to posts, schedules, engagement metrics, and mentions. Auth method is documented on the official API reference. No official SDK was detected, so most teams hit it directly with HTTP clients.

Typical builds: cross-channel scheduling pipelines fed from a Notion content calendar, real-time mention monitoring with sentiment scoring, and weekly engagement reports auto-generated from raw post data.

For agent workflows, the API is the path of least resistance until Postiz ships an MCP server. ask Claude which post types drive the most clicks this month, have Cursor draft a follow-up to your top-performing thread, and let Codex schedule a post across LinkedIn and X with one prompt.

For the broader picture: Postiz review, .

HOOK IT TO YOUR STACK

Real Postiz API calls you'll write

postiz-apirest
#Schedule a post across LinkedIn and X
POST/v1/posts
201 Created · 2 scheduled
LinkedInFri 14:00 EST
X / TwitterFri 14:00 EST
Approvalauto
postiz-apirest
#Get top posts by engagement this week
GET/v1/posts?sort=-engagement&period=7d
200 OK · top 5
MCP rundown thread4.2k
Pricing teardown2.8k
Tool comparison1.9k
postiz-apirest
#Pull mention stream for our brand
GET/v1/mentions?brand=tmb&since=24h
200 OK · 18 mentions
Positive sentiment12
Neutral5
Needs reply1
TMB SCORE FOR PostizAgent fit: 3/10
Read review →

Endpoints illustrative. Confirm exact paths against the live API docs before integrating.

How much does the Postiz API actually cost?

Verify on docs

Postiz publishes an API, but per-tier gating wasn't extracted automatically.

  • Most likely scenario: API access is either included in all paid plans, or it's gated to higher tiers and we need to verify on the live docs page.
  • Until verified, treat the question "which plan unlocks the API" as open. Don't budget on the assumption it's free with the cheapest paid plan.

API at a glance

Auth method
—
SDK languages
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OpenAPI spec
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Webhooks
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Structured outputs
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What you can build with the Postiz API

Three personas, three different shapes of build. Pick the row that matches how you actually ship.

SOLO DEV / FOUNDER

Glue Postiz into your daily workflow

  • Pull a digest of fresh activity into your morning Slack
  • Trigger a one-off backfill when something looks off
  • Pipe data into your own SQLite for ad-hoc queries
Effort: A weekend, one Node or Python script
AGENCY / CONSULTANT

Sell Postiz reporting at scale

  • White-label Postiz data into client-branded dashboards
  • Run scheduled multi-account reports without logging into the Postiz UI
  • Cross-reference with the rest of the client's stack (CRM, analytics, ad spend)
Effort: 1-2 weeks, hits multi-tenant auth quickly
IN-HOUSE ENGINEER

Production pipelines for Postiz

  • Real-time sync into your warehouse on a cron
  • Custom alerts the dashboard's built-in alerting can't express
  • Backfill + idempotency handling for Postiz data older than the dashboard exposes
Effort: Multi-week project, expect rate-limit tuning

Quickstart template

# Starter template — endpoint paths and SDK package names come from
# the Postiz API docs: https://docs.postiz.com/public-api

curl -X GET "https://api.postiz.com/<your-endpoint>" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Accept: application/json" | jq .

Template only. Endpoint paths, exact base URL, and auth header format come from docs.postiz.com/public-api.

Limits and gotchas

  • No OpenAPI spec — you write typed clients by hand or use a third-party generator on the docs HTML.
  • No official SDK detected. Plan on hitting the API directly with your HTTP client of choice.
  • Rate limits: always read the docs page before scaling — the published limit is usually lower than the practical one and overages can be expensive.
3/10

Agent-readiness verdict

Not agent-ready yet. Postiz publishes llms.txt for AI discovery and maintains public API docs, but lacks MCP support, OpenAPI specs, and structured outputs that modern agent workflows depend on. The missing webhook and SDK support make real-time automation difficult.

Public API with docsPublishes llms.txt for AI agents

Postiz API FAQ

Does Postiz have a public API?+
Yes — REST API at docs.postiz.com/public-api.

Sources

Joonas Rotko
Joonas RotkoAuthor & Founder of That Marketing Buddy

10+ years in digital marketing. I review marketing software for AI-stack fit: real pricing, MCP and API support, and how cleanly each tool drops into an AI agent workflow, cross-checked against verified data and real user feedback.

About meHow I review