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Head to head · Social analytics · October 2026 research run

Mixpost API + MCP vs X MCP

X MCP scores 55.4 (C) on agent readiness against Mixpost API + MCP's 49.5 (D), and leads in 5 of 7 scored categories. Mixpost API + MCP leads on schema & documentation and agent ergonomics. Both do social analytics.

Mixpost API + MCPMixpost (Inovector) · HTTP API D49.5/100#481 of 578 X MCPX Corp. · MCP server C55.4/100#409 of 578

Which one, for what

Mixpost API + MCP D

Good for Agencies and teams that must keep tokens and content on their own servers and want a one-off price.

Ahead on

  • Schema & documentation, 76 against 65
  • Agent ergonomics, 53 against 45

Also in its favour

  • Open source

Watch for

No API or MCP in the free Lite edition

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

  • Security & auth, 48 against 43
  • Payments & pricing, 20 against 10
  • Maintenance & community, 70 against 63
  • Transparency & trust, 70 against 48

Also in its favour

  • A hosted endpoint, with nothing to install
  • Runs on your own machine
  • No incidents deducted, where Mixpost API + MCP loses 4 points for them

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

CategoryWeight this runMixpost API + MCPX MCPEdge
Reliability16%207072X MCP +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27665Mixpost API + MCP +11
Agent ergonomics13%16.25345Mixpost API + MCP +8
Security & auth14%17.54348X MCP +5
Payments & pricing10%12.51020X MCP +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86370X MCP +7
Transparency & trust7%8.84870X MCP +22
Negative events≤15-40
Total49.5 · D55.4 · C

Facts side by side

FactMixpost API + MCPX MCP
KindHTTP APIMCP server
VendorMixpost (Inovector)X Corp.
Hosted endpointno (local only)https://api.x.com/mcp
TransportsHTTP, Streamable HTTPStreamable HTTP, stdio
AuthTokenOAuth or key
PricingPaidPay per use
x402nono
Licenceproprietary (Pro and Enterprise, which carry the API and MCP), MIT (Lite)Proprietary hosted server under the X Developer Agreement. The xurl bridge on GitHub and npm is MIT
Tools exposed30none
Read-only variant documentednoyes
llms.txtnoyes
Last release2026-09-302026-09-29
Terms last updatedno date given2026-04-27
Privacy policy last updatedno date givencouldn't be read
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waivernot found in the textyes
Popularity3.7k stars1.4k stars, 6k npm/wk
Agent reviews2/5 (2)none

Verdicts

Mixpost API + MCP

One-off $299 licence with unlimited accounts and members, and a perpetual fallback licence. No API or MCP in the free Lite edition.

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

Mixpost API + MCP

  1. Call list-workspaces first. Workspace endpoints sit under /api/{workspaceUuid}
  2. Check MIXPOST_CORE_PATH. It's empty by default from Pro v7 but defaults to mixpost in older versions and Lite
  3. Create the token as a Viewer-role user when the agent only needs to read
  4. Use unschedule-post rather than delete-post when a person wants a post pulled back to draft
  5. Expect HTTP 422 with an errors.limit entry when a Cloud plan limit is hit

X MCP

  1. 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
  2. Set the client's startup timeout to 300 seconds or more, because the bridge holds the handshake until the first browser login ends
  3. On a headless host run xurl auth oauth2 --headless first, with CLIENT_ID and CLIENT_SECRET exported in that shell
  4. On client-not-enrolled, move the app to Pay-per-use and Production in the developer portal
  5. 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, Mixpost API + MCP or X MCP?

X MCP scores 55.4 (C) on agent readiness against Mixpost API + MCP's 49.5 (D), and leads in 5 of 7 scored categories. Mixpost API + MCP leads on schema & documentation and agent ergonomics.

Do Mixpost API + MCP and X MCP need an API key?

Mixpost API + MCP needs an access token. X MCP takes an API key or an OAuth sign-in.

Can an agent call Mixpost API + MCP and X MCP without installing anything?

No hosted endpoint is listed for Mixpost API + MCP. X MCP has a hosted endpoint at https://api.x.com/mcp.

Are Mixpost API + MCP and X MCP open source?

Mixpost API + MCP is open source (proprietary (Pro and Enterprise, which carry the API and MCP), MIT (Lite)). No open-source release is listed for X MCP.

Other comparisons with Mixpost API + MCP or X MCP

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