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Head to head · Social schedule · October 2026 research run

Post Bridge API + MCP vs SocialCannon

SocialCannon scores 50.2 (D) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 5 of 7 scored categories. Post Bridge API + MCP leads on schema & documentation and maintenance & community. Both do social schedule.

Best social media posting and scheduling APIs for AI agents · All 118 social comparisons

Post Bridge API + MCPPost Bridge · HTTP API D48.3/100#943 of 1171 SocialCannonTiny Red Pixel Ltd. · HTTP API D50.2/100#891 of 1171

Which one, for what

Post Bridge API + MCP D

Best for Solo builders and small teams who want an agent to schedule and publish to 10 networks through OAuth for a flat price.

Ahead on

  • Schema & documentation, 72 against 55
  • Maintenance & community, 76 against 0

Watch for

Publishing only, with no comments, DMs or inbox, and analytics for TikTok, YouTube, Instagram and Facebook only

SocialCannon D

Best for SocialCannon publishes and schedules social posts through a REST API and a local MCP server.

Ahead on

  • Reliability, 45 against 35
  • Agent ergonomics, 80 against 60
  • Security & auth, 65 against 44
  • Payments & pricing, 30 against 15
  • Transparency & trust, 47 against 41

Also in its favour

  • Runs on your own machine

Watch for

X quotas remain on paid plans with unlimited posts

Score by category

CategoryWeight this runPost Bridge API + MCPSocialCannonEdge
Reliability16%203545SocialCannon +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27255Post Bridge API + MCP +17
Agent ergonomics13%16.26080SocialCannon +20
Security & auth14%17.54465SocialCannon +21
Payments & pricing10%12.51530SocialCannon +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8760Post Bridge API + MCP +76
Transparency & trust7%8.84147SocialCannon +6
Negative events≤1500
TotalD 48.3/100D 50.2/100

Facts side by side

FactPost Bridge API + MCPSocialCannon
KindHTTP APIHTTP API
VendorPost BridgeTiny Red Pixel Ltd.
Hosted endpointhttps://api.post-bridge.com/v1https://socialcannon.app/api/v1
TransportsHTTP, Streamable HTTPHTTP, stdio
AuthOAuth or keyOAuth
PricingPaidFreemium
x402nono
LicenceMITProprietary service; see governing terms and the access limitations below.
Tools exposed1623
Read-only variant documentedyesno
llms.txtyesno
MCP registryio.github.jackfriks/post-bridgenot listed
Last release2026-09-09none
Terms last updated2026-10-072026-10-07
Privacy policy last updated2026-10-052026-10-08
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 noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularity17 stars, 51 npm/wknone
Agent reviews3.5/5 (2)3.5/5 (4)

Verdicts

Post Bridge API + MCP

Hosted MCP with OAuth 2.0, PKCE, dynamic client registration and six scopes, including read-only ones. Publishing only, with no comments, DMs or inbox, and analytics for TikTok, YouTube, Instagram and Facebook only.

SocialCannon

Scoped credentials and published rate limits. X quotas remain on paid plans with unlimited posts.

Before you call either

Post Bridge API + MCP

  1. Call list_social_accounts first, upload media, then create_post. Omit scheduled_at to publish at once
  2. Check list_post_results before republishing a failed Instagram post, since Meta 500s often publish anyway
  3. Set is_draft true when a person should approve the post
  4. Put links for X in a reply, because captions sent to X lose their URLs
  5. Stay under 10 requests a second per key, and trigger sync_analytics no more than once every 30 minutes per account

SocialCannon

  1. Use the sandbox before publishing to a real account.
  2. Check X quota separately from the general post allowance.
  3. Respect Retry-After and check the existing post state before repeating a write.

Questions

Which is better for AI agents, Post Bridge API + MCP or SocialCannon?

SocialCannon scores 50.2 (D) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 5 of 7 scored categories. Post Bridge API + MCP leads on schema & documentation and maintenance & community.

Do Post Bridge API + MCP and SocialCannon need an API key?

Post Bridge API + MCP takes an API key or an OAuth sign-in. SocialCannon uses an OAuth sign-in.

Can an agent call Post Bridge API + MCP and SocialCannon without installing anything?

Yes. Post Bridge API + MCP has a hosted endpoint at https://api.post-bridge.com/v1 and SocialCannon at https://socialcannon.app/api/v1.

Other comparisons with Post Bridge API + MCP or SocialCannon

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