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Head to head · Social posting · October 2026 research run

bundle.social vs Publer API + MCP

bundle.social scores 60.1 (C) on agent readiness against Publer API + MCP's 46.8 (D), and leads in 5 of 7 scored categories. Publer API + MCP leads on 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 Publer API + MCPPubler · HTTP API D46.8/100#843 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 46
  • Agent ergonomics, 66 against 55
  • Payments & pricing, 35 against 15
  • Maintenance & community, 78 against 41

Also in its favour

  • Runs on your own machine
  • Free to start without a card

Watch for

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

Publer API + MCP D

Good for Agencies already on Publer Business who want an agent to schedule in bulk and read deep analytics, including competitors.

Ahead on

  • Security & auth, 41 against 34

Watch for

API and MCP only on Business and Enterprise, and the free plan has no API

Score by category

CategoryWeight this runbundle.socialPubler API + MCPEdge
Reliability16%206360bundle.social +3
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28646bundle.social +40
Agent ergonomics13%16.26655bundle.social +11
Security & auth14%17.53441Publer API + MCP +7
Payments & pricing10%12.53515bundle.social +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87841bundle.social +37
Transparency & trust7%8.86566Publer API + MCP +1
Negative events≤1500
Total60.1 · C46.8 · D

Facts side by side

Factbundle.socialPubler API + MCP
KindHTTP APIHTTP API
VendorBUNDLE SP. Z O.O.Publer
Hosted endpointhttps://api.bundle.social/api/v1https://app.publer.com/api/v1
TransportsHTTP, stdioHTTP
AuthAPI keyAPI key
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 MITnone
Tools exposed68none
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-06none
Terms last updated2026-07-14couldn't be read
Privacy policy last updated2026-07-02couldn't be read
Customer content may train modelsnot found in the textcouldn't be read
Terms restrict automated accessyescouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticeyescouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularity2 stars, 4.1k npm/wknone
Agent reviewsnone3/5 (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.

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.

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

Publer API + MCP

  1. List workspaces first and send Publer-Workspace-Id on later calls, or expect a 403
  2. Poll /job_status/{job_id} after posts/schedule and read payload.failures, since status reads complete even when posts failed
  3. Use the Bearer-API scheme, not Bearer
  4. Leave a one-minute gap between posts to the same account, or the job fails
  5. Read X-RateLimit-Reset after a 429 and wait until then, as there's no Retry-After

Questions

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

bundle.social scores 60.1 (C) on agent readiness against Publer API + MCP's 46.8 (D), and leads in 5 of 7 scored categories. Publer API + MCP leads on security & auth.

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

Both need an API key.

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

Yes. bundle.social has a hosted endpoint at https://api.bundle.social/api/v1 and Publer API + MCP at https://app.publer.com/api/v1.

Other comparisons with bundle.social or Publer API + MCP

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