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Head to head · Social posting · October 2026 research run

bundle.social vs Metricool API + MCP

bundle.social scores 60.1 (C) on agent readiness against Metricool API + MCP's 38.3 (E), and leads in 6 of 7 scored categories. Metricool 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 Metricool API + MCPMetricool · HTTP API E38.3/100#921 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

  • Reliability, 63 against 35
  • Schema & documentation, 86 against 56
  • Agent ergonomics, 66 against 39
  • Payments & pricing, 35 against 30
  • Maintenance & community, 78 against 6
  • Transparency & trust, 65 against 59

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

Metricool API + MCP E

Good for Reporting agents that read analytics and ad results, and for drafting posts for human review on a free account.

Ahead on

  • Security & auth, 48 against 34

Watch for

REST API only on Advanced ($67 a month) and Custom

Score by category

CategoryWeight this runbundle.socialMetricool API + MCPEdge
Reliability16%206335bundle.social +28
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28656bundle.social +30
Agent ergonomics13%16.26639bundle.social +27
Security & auth14%17.53448Metricool API + MCP +14
Payments & pricing10%12.53530bundle.social +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8786bundle.social +72
Transparency & trust7%8.86559bundle.social +6
Negative events≤150-2
Total60.1 · C38.3 · E

Facts side by side

Factbundle.socialMetricool API + MCP
KindHTTP APIHTTP API
VendorBUNDLE SP. Z O.O.Metricool
Hosted endpointhttps://api.bundle.social/api/v1https://app.metricool.com/api
TransportsHTTP, stdioHTTP, Streamable HTTP
AuthAPI keyOAuth or key
PricingFreemiumFreemium
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 release2026-10-062025-10-07
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 accessyesyes
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/wk424 PyPI/wk
Agent reviewsnone2.5/5 (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.

Metricool API + MCP

Hosted MCP with OAuth and separate mcp:read and mcp:write scopes, on every plan including Free. REST API only on Advanced ($67 a month) and Custom.

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

Metricool API + MCP

  1. Connect the hosted MCP at https://ai.metricool.com/mcp with OAuth, and ask only for mcp:read when the job is reporting
  2. Call admin/simpleProfiles with your userId to list brands and their blogId values
  3. Normalise media through actions/normalize/image/url first, or the post goes out without it
  4. Give publicationDate a dateTime and an IANA timezone, in the future
  5. Back off on your own, since no rate limits or Retry-After are documented

Questions

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

bundle.social scores 60.1 (C) on agent readiness against Metricool API + MCP's 38.3 (E), and leads in 6 of 7 scored categories. Metricool API + MCP leads on security & auth.

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

bundle.social needs an API key. Metricool API + MCP takes an API key or an OAuth sign-in.

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

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

Other comparisons with bundle.social or Metricool API + MCP

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