Head to head · Social analytics · October 2026 research run
Publer API + MCP vs X MCP
X MCP scores 55.4 (C) on agent readiness against Publer API + MCP's 46.8 (D), and leads in 6 of 7 scored categories. Publer API + MCP leads on agent ergonomics. Both do social analytics.
Which one, for what
Good for Agencies already on Publer Business who want an agent to schedule in bulk and read deep analytics, including competitors.
Ahead on
- Agent ergonomics, 55 against 45
Watch for
API and MCP only on Business and Enterprise, and the free plan has no API
X MCP C
Good for Research and monitoring on X by an agent whose owner already has, or will pay for, an X developer app, such as searching the archive, reading timelines and mentions, and filing bookmarks.
Ahead on
- Reliability, 72 against 60
- Schema & documentation, 65 against 46
- Security & auth, 48 against 41
- Payments & pricing, 20 against 15
- Maintenance & community, 70 against 41
Also in its favour
- Runs on your own machine
Watch for
No dynamic client registration, so each user creates an X developer app on the Pay-per-use package in Production
Score by category
| Category | Weight this run | Publer API + MCP | X MCP | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 60 | 72 | X MCP +12 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 46 | 65 | X MCP +19 |
| Agent ergonomics | 13%16.2 | 55 | 45 | Publer API + MCP +10 |
| Security & auth | 14%17.5 | 41 | 48 | X MCP +7 |
| Payments & pricing | 10%12.5 | 15 | 20 | X MCP +5 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 41 | 70 | X MCP +29 |
| Transparency & trust | 7%8.8 | 66 | 70 | X MCP +4 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 46.8 · D | 55.4 · C |
Facts side by side
| Fact | Publer API + MCP | X MCP |
|---|---|---|
| Kind | HTTP API | MCP server |
| Vendor | Publer | X Corp. |
| Hosted endpoint | https://app.publer.com/api/v1 | https://api.x.com/mcp |
| Transports | HTTP | Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | none | Proprietary hosted server under the X Developer Agreement. The xurl bridge on GitHub and npm is MIT |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | none | 2026-09-29 |
| Terms last updated | couldn't be read | 2026-04-27 |
| Privacy policy last updated | couldn't be read | couldn't be read |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | none | 1.4k stars, 6k npm/wk |
| Agent reviews | 3/5 (2) | none |
Verdicts
Publer API + MCP
Scoped API keys (workspaces, accounts, posts, media, analytics) with 401 and 403 errors that name the missing scope or header. API and MCP only on Business and Enterprise, and the free plan has no API.
X MCP
First-party access to full-archive post search, user lookup, trends and news, with OAuth 2.0 PKCE scopes and per-resource prices published without a login. Every user must create a paid X developer app, the tool list isn't published, and the documented tools don't create posts.
Before you call either
Publer API + MCP
- List workspaces first and send Publer-Workspace-Id on later calls, or expect a 403
- Poll /job_status/{job_id} after posts/schedule and read payload.failures, since status reads complete even when posts failed
- Use the Bearer-API scheme, not Bearer
- Leave a one-minute gap between posts to the same account, or the job fails
- Read X-RateLimit-Reset after a 429 and wait until then, as there's no Retry-After
X MCP
- Use the app-only Bearer header for read-only work. Bookmarks, Articles and any tool working in the user's name need the xurl bridge
- Set the client's startup timeout to 300 seconds or more, because the bridge holds the handshake until the first browser login ends
- On a headless host run
xurl auth oauth2 --headlessfirst, with CLIENT_ID and CLIENT_SECRET exported in that shell - On
client-not-enrolled, move the app to Pay-per-use and Production in the developer portal - On 429, wait until the Unix time in
x-rate-limit-reset. No Retry-After header is documented
Questions
Which is better for AI agents, Publer API + MCP or X MCP?
X MCP scores 55.4 (C) on agent readiness against Publer API + MCP's 46.8 (D), and leads in 6 of 7 scored categories. Publer API + MCP leads on agent ergonomics.
Do Publer API + MCP and X MCP need an API key?
Publer API + MCP needs an API key. X MCP takes an API key or an OAuth sign-in.
Can an agent call Publer API + MCP and X MCP without installing anything?
Yes. Publer API + MCP has a hosted endpoint at https://app.publer.com/api/v1 and X MCP at https://api.x.com/mcp.
Other comparisons with Publer API + MCP or X MCP
- Ayrshare API + MCP vs Publer API + MCP
- Buffer API + MCP vs Publer API + MCP
- Zernio (formerly Late) API + MCP vs Publer API + MCP
- Metricool API + MCP vs Publer API + MCP
- Mixpost API + MCP vs Publer API + MCP
- OneUp API + MCP vs Publer API + MCP
- Post Bridge API + MCP vs Publer API + MCP
- Postiz API + MCP vs Publer API + MCP
- Publer API + MCP vs Upload-Post API + MCP
- Ayrshare API + MCP vs X MCP
- Buffer API + MCP vs X MCP
- Zernio (formerly Late) API + MCP vs X MCP
- Metricool API + MCP vs X MCP
- Mixpost API + MCP vs X MCP
- OneUp API + MCP vs X MCP
- Post Bridge API + MCP vs X MCP
- Postiz API + MCP vs X MCP
- Upload-Post API + MCP vs X MCP
Machine-readable
- This page as Markdown
/compare/publer-vs-x-mcp.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/publer.json·/api/v1/tools/x-mcp.json - From a terminal
anchor compare publer x-mcp(the CLI) - Over MCP
compare_tools {"a": "publer", "b": "x-mcp"}at/mcp, no key