Post to Instagram via API: the Instagram Graph API (Meta), handled for you (2026)

How Instagram posting works

Instagram posting runs through Meta's Graph API. It requires an Instagram Business or Creator account linked to a Facebook Page, OAuth via Facebook Login, and Meta App Review for the content-publishing permissions. Personal accounts can't post via API.

Meta's App Review and business verification are slow and strict. PostWire handles the Meta app and the review so you publish with one call.

Honest status

Instagram is live on PostWire through Meta's official Graph API — PostWire holds the Meta App Review, so you connect with one OAuth click. Feed posts, Reels and Stories are supported; Instagram requires a photo or a video on every post, and PostWire refuses a text-only one before it is sent rather than letting Meta reject it.

1. Connect a Instagram account (OAuth)

Instagram uses OAuth, not a password. Your user connects in the dashboard, or you generate the authorization URL via the API:

curl -X POST https://postwire.io/api/oauth/instagram/url \
  -H "Authorization: Bearer $POSTWIRE_API_KEY"
# -> { "url": "https://.../oauth/authorize?..." }
# The user opens the URL, approves, and PostWire stores the token (and refreshes it for you).

2. Publish with one REST call

Once connected, posting is a single request. Add more networks by putting more strings in platforms.

curl -X POST https://postwire.io/api/post \
  -H "Authorization: Bearer $POSTWIRE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"platforms":["instagram"],"photo_url":"https://cdn.example.com/photo.jpg","text":"New drop ✨ #reels"}'

3. Or let an AI agent post it (MCP)

PostWire ships a first-class MCP server — not docs-only. Add it to any MCP client:

{
  "mcpServers": {
    "postwire": {
      "command": "npx",
      "args": ["-y", "postwire-mcp"],
      "env": { "POSTWIRE_API_KEY": "pw_live_xxx" }
    }
  }
}

Then the agent just calls the tool:

{
  "name": "post_to_social",
  "arguments": { "platforms": ["instagram"], "photo_url": "https://cdn.example.com/photo.jpg", "text": "New drop ✨" }
}

Instagram via API: build it yourself vs PostWire

Pricing: per connected account

Running 50 brands on Ayrshare costs roughly $299 — and its MCP is docs-only, so an agent can't actually post. See PostWire vs Ayrshare.

FAQ

Does Instagram have an API?

Yes, through the Meta Graph API, and only for Instagram Business or Creator accounts linked to a Facebook Page, after Meta approves your app. Personal Instagram accounts cannot be published to at all.

Can I post to Instagram via API?

Yes, with an Instagram Business or Creator account linked to a Facebook Page, through Meta's Graph API. It needs Meta App Review for publishing permissions. PostWire handles the Meta app, OAuth and review behind one REST call and one MCP tool.

Do I need a Business account to post to Instagram?

Yes. Meta's Graph API only allows publishing from Instagram Business or Creator accounts linked to a Facebook Page. Personal accounts cannot post via API. PostWire walks you through connecting the right account.

Is Instagram live on PostWire yet?

Not yet — as of June 2026 Instagram is in platform review at PostWire via Meta App Review. The integration is built and will be a one-line change when approved. Bluesky, Telegram, Mastodon and Discord are live now.

How does an AI agent post to Instagram?

PostWire ships an MCP server (postwire-mcp). The agent calls post_to_social with platforms set to instagram, a photo_url or video_url and text. PostWire handles the Graph API publish flow and returns the result.

How much does posting to Instagram cost?

Flat per-account pricing: Free $0 (1 brand, 30 posts), Starter $9, Pro $29, Agency $99 for 50 brands, Scale $299. Instagram is included on every paid plan once it leaves review.