# bundle.social vs Postiz API + MCP

> bundle.social and Postiz score within a point of each other for social posting, 60.1 and 59.3 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/bundle-social-vs-postiz
- Markdown: https://www.anchorterminal.com/compare/bundle-social-vs-postiz.md (~2,650 tokens)
- Slim: https://www.anchorterminal.com/compare/bundle-social-vs-postiz.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/bundle-social-vs-postiz.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

bundle.social and Postiz API + MCP score within a point of each other on agent readiness, 60.1 (C) and 59.3 (C). Postiz API + MCP leads on security & auth, maintenance & community and transparency & trust. Both do social posting.

- bundle.social: grade C, 60.1/100, rank #530 of 950. Markdown https://www.anchorterminal.com/tools/bundle-social.md · JSON https://www.anchorterminal.com/api/v1/tools/bundle-social.json
- Postiz API + MCP: grade C, 59.3/100, rank #552 of 950. Markdown https://www.anchorterminal.com/tools/postiz.md · JSON https://www.anchorterminal.com/api/v1/tools/postiz.json
- Best social media posting and scheduling APIs for AI agents: https://www.anchorterminal.com/best/social-media/index.md
- All 103 social comparisons: https://www.anchorterminal.com/compare/social-media/index.md

## Which one, for what

### bundle.social (C)

Good for: A SaaS product or agent that manages many accounts for many customers, since paid plans do not charge per connected account and teams separate tenants.

Ahead on:
- Reliability, 63 against 53
- Payments & pricing, 35 against 30

Also in its favour:
- Runs on your own machine
- Free to start without a card
- No incidents deducted, where Postiz API + MCP loses 3 points for them

Watch for: API keys are organisation-wide with no scopes or read-only mode found, so one key reaches every team and connected account

### Postiz API + MCP (C)

Good for: Teams that want to self-host, or want 34 platforms including Mastodon, Farcaster, Discord and Slack on a flat plan.

Ahead on:
- Security & auth, 49 against 34
- Maintenance & community, 85 against 78
- Transparency & trust, 81 against 65

Also in its favour:
- Open source

Watch for: Create-post capped at 90 requests an hour on every Cloud plan


## Score by category

| Category | Weight | bundle.social | Postiz API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 63 | 53 | bundle.social +10 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 86 | 88 | Postiz API + MCP +2 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 65 | bundle.social +1 |
| Security & auth | 14% (17.5 this run) | 34 | 49 | Postiz API + MCP +15 |
| Payments & pricing | 10% (12.5 this run) | 35 | 30 | bundle.social +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 78 | 85 | Postiz API + MCP +7 |
| Transparency & trust | 7% (8.8 this run) | 65 | 81 | Postiz API + MCP +16 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **60.1 · C** | **59.3 · C** | |

## Facts side by side

| Fact | bundle.social | Postiz API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | BUNDLE SP. Z O.O. | Postiz (Gitroom) |
| Hosted endpoint | `https://api.bundle.social/api/v1` | `https://api.postiz.com/public/v1` |
| Transports | HTTP, stdio | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Paid |
| Price for social posting | $0.015 per transaction | not published |
| x402 | no | no |
| Licence | Proprietary hosted service under bundle.social's terms of service. The TypeScript SDK, the CLI and the MCP server on GitHub are MIT | AGPL-3.0 |
| Tools exposed | 68 | 13 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-06 | 2026-09-22 |
| Terms last updated | 2026-07-14 | 2026-05-03 |
| Privacy policy last updated | 2026-07-02 | 2026-05-03 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 2 stars, 4.1k npm/wk | 37k stars, 368 npm/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**bundle.social.** The REST API has a public OpenAPI 3.0 description of 194 operations, Markdown docs and published rate limits, and the free plan needs no card. Organisation API keys carry no scopes, there is no idempotency key, and the status page shows one API outage of 4 hours 3 minutes on 31 August 2026.

**Postiz API + MCP.** AGPL-3.0 and self-hostable with the API and MCP included, 34 platforms. Create-post capped at 90 requests an hour on every Cloud plan.

## Before you call either

### bundle.social

1. Send the key in the `x-api-key` header to `https://api.bundle.social/api/v1`. A missing key returns 401 and a bad key 403
2. Pass `teamId` on most calls. Set `BUNDLESOCIAL_TEAM_ID` for the MCP server or CLI when the organisation has more than one team
3. Set a `referenceKey` on each post and look it up with the reference-key endpoint before retrying a create, because there is no idempotency key
4. Check `GET /api/v1/organization/usage/daily-limits` before bulk scheduling. Failed and deleted posts still count against the monthly quota
5. A person must complete each network's OAuth consent in a browser. Keep prepaid credit for X, where a post costs $0.015 or $0.20 with a link

### Postiz API + MCP

1. Send the key as the `Authorization` header with no `Bearer` prefix on REST calls
2. Batch several posts into one create request to stay under 90 an hour
3. Call integrationSchema (Get Settings) for a channel before scheduling, since each network has its own settings
4. Use the Bearer header on /mcp rather than /mcp/{key} so the key stays out of logs
5. Read output.errors on a failed schedule call and retry with the corrected fields

## Questions

### Which is better for AI agents, bundle.social or Postiz API + MCP?

bundle.social and Postiz API + MCP score within a point of each other on agent readiness, 60.1 (C) and 59.3 (C). Postiz API + MCP leads on security & auth, maintenance & community and transparency & trust.

### Do bundle.social and Postiz API + MCP need an API key?

bundle.social needs an API key. Postiz API + MCP takes an API key or an OAuth sign-in.

### Can an agent call bundle.social and Postiz API + MCP without installing anything?

Yes. bundle.social has a hosted endpoint at https://api.bundle.social/api/v1 and Postiz API + MCP at https://api.postiz.com/public/v1.

### Are bundle.social and Postiz API + MCP open source?

No open-source release is listed for bundle.social. Postiz API + MCP is open source (AGPL-3.0).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/bundle-social-vs-postiz.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bundle-social-vs-postiz.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "bundle-social", "b": "postiz"}`. From a terminal: `anchor compare bundle-social postiz`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bundle-social.json and https://www.anchorterminal.com/api/v1/tools/postiz.json

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