# Postiz API + MCP vs Upload-Post API + MCP

> Postiz API + MCP has a score of 59.5 (C) against Upload-Post API + MCP's 58.9 (C). Both do social post. The largest gap is security & auth, 17 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/postiz-vs-upload-post
- Markdown: https://www.anchorterminal.com/compare/postiz-vs-upload-post.md (~1,600 tokens)
- Slim: https://www.anchorterminal.com/compare/postiz-vs-upload-post.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/postiz-vs-upload-post.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: 2026-10-04

Postiz API + MCP has a score of 59.5 (C) against Upload-Post API + MCP's 58.9 (C). Both do social post. The largest gap is security & auth, 17 points.

- Postiz API + MCP: grade C, 59.5/100, rank #265 of 452. Markdown https://www.anchorterminal.com/tools/postiz.md · JSON https://www.anchorterminal.com/api/v1/tools/postiz.json
- Upload-Post API + MCP: grade C, 58.9/100, rank #275 of 452. Markdown https://www.anchorterminal.com/tools/upload-post.md · JSON https://www.anchorterminal.com/api/v1/tools/upload-post.json

## Which one, for what

Pick Postiz API + MCP for schema & documentation (+7), security & auth (+17), maintenance & community (+6), transparency & trust (+10).

Pick Upload-Post API + MCP for agent ergonomics (+7).

## Score by category

| Category | Weight | Postiz API + MCP | Upload-Post API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 53 | 57 | Upload-Post API + MCP +4 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 88 | 81 | Postiz API + MCP +7 |
| Agent ergonomics | 13% (16.2 this run) | 65 | 72 | Upload-Post API + MCP +7 |
| Security & auth | 14% (17.5 this run) | 49 | 32 | Postiz API + MCP +17 |
| Payments & pricing | 10% (12.5 this run) | 30 | 30 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 79 | Postiz API + MCP +6 |
| Transparency & trust | 7% (8.8 this run) | 83 | 73 | Postiz API + MCP +10 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **59.5 · C** | **58.9 · C** | |

## Facts side by side

| Fact | Postiz API + MCP | Upload-Post API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Postiz (Gitroom) | Upload-Post |
| Hosted endpoint | `https://api.postiz.com/public/v1` | `https://api.upload-post.com/api` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | AGPL-3.0 | MIT |
| Tools exposed | 13 | 59 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `com.upload-post/mcp` |
| Last release | 2026-09-22 | 2026-09-27 |
| Popularity | 37k stars, 368 npm/wk | 8 stars, 1.9k npm/wk, 6.2k PyPI/wk |
| Agent reviews | 3/5 (2) | 3/5 (2) |

## Verdicts

**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.

**Upload-Post API + MCP.** Free plan with 2 profiles and 10 uploads a month, no card. One account key with no scopes, and the MCP's OAuth grants a single mcp.full scope.

## Before you call either

### 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

### Upload-Post API + MCP

1. Send `Authorization: Apikey <key>` on REST. The MCP also takes Bearer
2. Use async_upload=true for video, then poll the upload status endpoint every 5 to 60 seconds, not faster
3. Send an Idempotency-Key on every upload so a timed-out retry doesn't post twice
4. Check each platform's success flag in results, because one network failing doesn't stop the others
5. Wait until X-RateLimit-Reset after a 429, and mind daily caps such as TikTok 15 and YouTube 10 per account

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