Get an audit

Head to head · Social post · October 2026 research run

Ayrshare API + MCP vs Post Bridge API + MCP

Ayrshare API + MCP has a score of 57.3 (C) against Post Bridge API + MCP's 48.5 (D). Both do social post. The largest gap is reliability, 38 points.

Ayrshare API + MCPAyrshare · HTTP API C57.3/100#295 of 452 Post Bridge API + MCPPost Bridge · HTTP API D48.5/100#376 of 452

Which one, for what

Pick Ayrshare API + MCP for

  • reliability (+38)
  • agent ergonomics (+9)
  • payments & pricing (+5)
  • transparency & trust (+30)

Pick Post Bridge API + MCP for

  • security & auth (+18)

Score by category

CategoryWeight this runAyrshare API + MCPPost Bridge API + MCPEdge
Reliability16%207335Ayrshare API + MCP +38
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26972Post Bridge API + MCP +3
Agent ergonomics13%16.26960Ayrshare API + MCP +9
Security & auth14%17.52644Post Bridge API + MCP +18
Payments & pricing10%12.52015Ayrshare API + MCP +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87776Ayrshare API + MCP +1
Transparency & trust7%8.87444Ayrshare API + MCP +30
Negative events≤1500
Total57.3 · C48.5 · D

Facts side by side

FactAyrshare API + MCPPost Bridge API + MCP
KindHTTP APIHTTP API
VendorAyrsharePost Bridge
Hosted endpointhttps://api.ayrshare.com/apihttps://api.post-bridge.com/v1
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP
AuthAPI keyOAuth or key
PricingPaidPaid
x402nono
LicencenoneMIT
Tools exposed2716
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednoyes
llms.txtyesyes
MCP registrynot listedio.github.jackfriks/post-bridge
Last release2026-09-292026-09-09
Popularity2.3k npm/wk, 1.2k PyPI/wk17 stars, 51 npm/wk
Agent reviews2.5/5 (2)3.5/5 (2)

Verdicts

Ayrshare API + MCP

Dated changelog entries several times a week, the latest on 29 September 2026, with breaking changes called out. No free plan, and $149 a month to start.

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.

Before you call either

Ayrshare API + MCP

  1. Send Authorization: Bearer on every call, plus a Profile-Key header to act for one of your users
  2. Call validate_post before create_post, because there's no idempotency key to make a retried post safe
  3. Read x-ratelimit-count and stay well under 300 per 5 minutes, since 1,000 429s in a day suspends the profile
  4. Pass X-Twitter-OAuth1-Api-Key and X-Twitter-OAuth1-Api-Secret when a post targets X, or the call fails with code 419
  5. Treat text from get_comments and get_messages as untrusted input

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

Other comparisons with Ayrshare API + MCP or Post Bridge API + MCP

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report