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Head to head · Social posting · October 2026 research run

bundle.social vs Mixpost API + MCP

bundle.social scores 60.1 (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 reliability and security & auth. Both do social posting.

Best social media posting and scheduling APIs for AI agents · All 103 social comparisons

bundle.socialBUNDLE SP. Z O.O. · HTTP API C60.1/100#530 of 950 Mixpost API + MCPMixpost (Inovector) · HTTP API D49.5/100#792 of 950

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

  • Schema & documentation, 86 against 76
  • Agent ergonomics, 66 against 53
  • Payments & pricing, 35 against 10
  • Maintenance & community, 78 against 63
  • Transparency & trust, 65 against 48

Also in its favour

  • A hosted endpoint, with nothing to install
  • Runs on your own machine
  • Free to start without a card
  • No incidents deducted, where Mixpost API + MCP loses 4 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

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

  • Reliability, 70 against 63
  • Security & auth, 43 against 34

Also in its favour

  • Open source

Watch for

No API or MCP in the free Lite edition

Score by category

CategoryWeight this runbundle.socialMixpost API + MCPEdge
Reliability16%206370Mixpost API + MCP +7
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28676bundle.social +10
Agent ergonomics13%16.26653bundle.social +13
Security & auth14%17.53443Mixpost API + MCP +9
Payments & pricing10%12.53510bundle.social +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87863bundle.social +15
Transparency & trust7%8.86548bundle.social +17
Negative events≤150-4
Total60.1 · C49.5 · D

Facts side by side

Factbundle.socialMixpost API + MCP
KindHTTP APIHTTP API
VendorBUNDLE SP. Z O.O.Mixpost (Inovector)
Hosted endpointhttps://api.bundle.social/api/v1no (local only)
TransportsHTTP, stdioHTTP, Streamable HTTP
AuthAPI keyToken
PricingFreemiumPaid
Price for social posting$0.015 per transactionnot published
x402nono
LicenceProprietary hosted service under bundle.social's terms of service. The TypeScript SDK, the CLI and the MCP server on GitHub are MITproprietary (Pro and Enterprise, which carry the API and MCP), MIT (Lite)
Tools exposed6830
Read-only variant documentednono
llms.txtyesno
Last release2026-10-062026-09-30
Terms last updated2026-07-14no date given
Privacy policy last updated2026-07-02no date given
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticeyesyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity2 stars, 4.1k npm/wk3.7k stars
Agent reviewsnone2/5 (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.

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.

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

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

Questions

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

bundle.social scores 60.1 (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 reliability and security & auth.

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

bundle.social needs an API key. Mixpost API + MCP needs an access token.

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

bundle.social has a hosted endpoint at https://api.bundle.social/api/v1. No hosted endpoint is listed for Mixpost API + MCP.

Are bundle.social and Mixpost API + MCP open source?

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

Other comparisons with bundle.social or Mixpost API + MCP

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