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Head to head · Social analytics · October 2026 research run

Post Bridge API + MCP vs Sprout Social API

Sprout Social API scores 54.7 (C) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 4 of 7 scored categories. Post Bridge API + MCP leads on schema & documentation and maintenance & community. Both do social analytics.

Best social media posting and scheduling APIs for AI agents · All 103 social comparisons

Post Bridge API + MCPPost Bridge · HTTP API D48.3/100#816 of 950 Sprout Social APISprout Social, Inc. · HTTP API C54.7/100#679 of 950

Which one, for what

Post Bridge API + MCP D

Good 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 51
  • Maintenance & community, 76 against 38

Watch for

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

Sprout Social API C

Good for Reporting agents that pull profile, post, inbox, listening and case data for a company that already pays for Sprout Social, and for drafting posts a person will approve.

Ahead on

  • Reliability, 71 against 35
  • Security & auth, 61 against 44
  • Payments & pricing, 20 against 15
  • Transparency & trust, 70 against 41

Watch for

Posts can be created only as drafts (is_draft: true), so the API cannot publish or schedule a post without a person in Sprout

Score by category

CategoryWeight this runPost Bridge API + MCPSprout Social APIEdge
Reliability16%203571Sprout Social API +36
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27251Post Bridge API + MCP +21
Agent ergonomics13%16.26059Post Bridge API + MCP +1
Security & auth14%17.54461Sprout Social API +17
Payments & pricing10%12.51520Sprout Social API +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87638Post Bridge API + MCP +38
Transparency & trust7%8.84170Sprout Social API +29
Negative events≤1500
Total48.3 · D54.7 · C

Facts side by side

FactPost Bridge API + MCPSprout Social API
KindHTTP APIHTTP API
VendorPost BridgeSprout Social, Inc.
Hosted endpointhttps://api.post-bridge.com/v1https://api.sproutsocial.com
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyOAuth or key
PricingPaidPaid
x402nono
LicenceMITProprietary service under the Sprout Social Developer Terms and Terms of Service
Tools exposed16none
Read-only variant documentedyesno
llms.txtyesno
MCP registryio.github.jackfriks/post-bridgenot listed
Last release2026-09-092026-10-06
Terms last updated2026-10-072024-05-09
Privacy policy last updated2026-10-052026-09-16
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
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)none

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.

Sprout Social API

The API reads analytics, inbox messages, listening topics and cases across the main networks, with OAuth client credentials, field selection and a dated changelog. It creates draft posts only, so a person must publish them in Sprout. Access needs the Advanced plan at $399 per seat a month, and no OpenAPI file or SDK was found.

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

Sprout Social API

  1. Call GET /v1/metadata/client first for the customer ID, then GET /v1/<customer ID>/metadata/customer for profile and group IDs. Every other path needs them
  2. Send is_draft: true on POST /v1/<customer ID>/publishing/posts. Tell the user the draft waits in the Sprout calendar for a person to publish
  3. Name the fields you want on messages and posts requests. Without the list only guid comes back
  4. Stay under 60 requests a minute and 250,000 a month, and back off on 429 on your own because no Retry-After is documented
  5. Check the response when a draft names several profiles. A profile that cannot take the attached media is dropped with no error

Questions

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

Sprout Social API scores 54.7 (C) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 4 of 7 scored categories. Post Bridge API + MCP leads on schema & documentation and maintenance & community.

Do Post Bridge API + MCP and Sprout Social API need an API key?

Both take an API key or an OAuth sign-in.

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

Yes. Post Bridge API + MCP has a hosted endpoint at https://api.post-bridge.com/v1 and Sprout Social API at https://api.sproutsocial.com.

Other comparisons with Post Bridge API + MCP or Sprout Social API

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