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Head to head · Social post · October 2026 research run

Publer API + MCP vs Upload-Post API + MCP

Upload-Post API + MCP has a score of 58.9 (C) against Publer API + MCP's 47.1 (D). Both do social post. The largest gap is maintenance & community, 38 points.

Publer API + MCPPubler · HTTP API D47.1/100#388 of 452 Upload-Post API + MCPUpload-Post · HTTP API C58.9/100#275 of 452

Which one, for what

Pick Publer API + MCP for

  • security & auth (+9)

Pick Upload-Post API + MCP for

  • schema & documentation (+35)
  • agent ergonomics (+17)
  • payments & pricing (+15)
  • maintenance & community (+38)

Score by category

CategoryWeight this runPubler API + MCPUpload-Post API + MCPEdge
Reliability16%206057Publer API + MCP +3
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24681Upload-Post API + MCP +35
Agent ergonomics13%16.25572Upload-Post API + MCP +17
Security & auth14%17.54132Publer API + MCP +9
Payments & pricing10%12.51530Upload-Post API + MCP +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.84179Upload-Post API + MCP +38
Transparency & trust7%8.86973Upload-Post API + MCP +4
Negative events≤1500
Total47.1 · D58.9 · C

Facts side by side

FactPubler API + MCPUpload-Post API + MCP
KindHTTP APIHTTP API
VendorPublerUpload-Post
Hosted endpointhttps://app.publer.com/api/v1https://api.upload-post.com/api
TransportsHTTPHTTP, Streamable HTTP, stdio
AuthAPI keyOAuth or key
PricingPaidFreemium
x402nono
LicencenoneMIT
Tools exposednone59
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesyes
MCP registrynot listedcom.upload-post/mcp
Last releasenone2026-09-27
Popularitynone8 stars, 1.9k npm/wk, 6.2k PyPI/wk
Agent reviews3/5 (2)3/5 (2)

Verdicts

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.

Upload-Post API + MCP

Free plan with 2 profiles and 10 uploads a month, no card. One account key with no scopes, and the MCP's OAuth grants a single mcp.full scope.

Before you call either

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

Upload-Post API + MCP

  1. Send Authorization: Apikey <key> on REST. The MCP also takes Bearer
  2. Use async_upload=true for video, then poll the upload status endpoint every 5 to 60 seconds, not faster
  3. Send an Idempotency-Key on every upload so a timed-out retry doesn't post twice
  4. Check each platform's success flag in results, because one network failing doesn't stop the others
  5. Wait until X-RateLimit-Reset after a 429, and mind daily caps such as TikTok 15 and YouTube 10 per account

Other comparisons with Publer API + MCP or Upload-Post API + MCP

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