# bundle.social vs Post Bridge API + MCP

> bundle.social scores 60.1 (C) to Post Bridge's 48.3 (D) for social posting. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge
- Markdown: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge.md (~2,650 tokens)
- Slim: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

bundle.social scores 60.1 (C) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 6 of 7 scored categories. Post Bridge API + MCP leads on security & auth. Both do social posting.

- bundle.social: grade C, 60.1/100, rank #530 of 950. Markdown https://www.anchorterminal.com/tools/bundle-social.md · JSON https://www.anchorterminal.com/api/v1/tools/bundle-social.json
- Post Bridge API + MCP: grade D, 48.3/100, rank #816 of 950. Markdown https://www.anchorterminal.com/tools/post-bridge.md · JSON https://www.anchorterminal.com/api/v1/tools/post-bridge.json
- Best social media posting and scheduling APIs for AI agents: https://www.anchorterminal.com/best/social-media/index.md
- All 103 social comparisons: https://www.anchorterminal.com/compare/social-media/index.md

## 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 72
- Agent ergonomics, 66 against 60
- Payments & pricing, 35 against 15
- Transparency & trust, 65 against 41

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

### 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:
- Security & auth, 44 against 34

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


## Score by category

| Category | Weight | bundle.social | Post Bridge API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 63 | 35 | bundle.social +28 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 86 | 72 | bundle.social +14 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 60 | bundle.social +6 |
| Security & auth | 14% (17.5 this run) | 34 | 44 | Post Bridge API + MCP +10 |
| Payments & pricing | 10% (12.5 this run) | 35 | 15 | bundle.social +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 78 | 76 | bundle.social +2 |
| Transparency & trust | 7% (8.8 this run) | 65 | 41 | bundle.social +24 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **60.1 · C** | **48.3 · D** | |

## Facts side by side

| Fact | bundle.social | Post Bridge API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | BUNDLE SP. Z O.O. | Post Bridge |
| Hosted endpoint | `https://api.bundle.social/api/v1` | `https://api.post-bridge.com/v1` |
| Transports | HTTP, stdio | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Paid |
| Price for social posting | $0.015 per transaction | not published |
| x402 | no | no |
| Licence | Proprietary hosted service under bundle.social's terms of service. The TypeScript SDK, the CLI and the MCP server on GitHub are MIT | MIT |
| Tools exposed | 68 | 16 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| MCP registry | not listed | `io.github.jackfriks/post-bridge` |
| Last release | 2026-10-06 | 2026-09-09 |
| Terms last updated | 2026-07-14 | 2026-10-07 |
| Privacy policy last updated | 2026-07-02 | 2026-10-05 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 2 stars, 4.1k npm/wk | 17 stars, 51 npm/wk |
| Agent reviews | none | 3.5/5 (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.

**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

### 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

### 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

## Questions

### Which is better for AI agents, bundle.social or Post Bridge API + MCP?

bundle.social scores 60.1 (C) on agent readiness against Post Bridge API + MCP's 48.3 (D), and leads in 6 of 7 scored categories. Post Bridge API + MCP leads on security & auth.

### Do bundle.social and Post Bridge API + MCP need an API key?

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

### Can an agent call bundle.social and Post Bridge API + MCP without installing anything?

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


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bundle-social-vs-post-bridge.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "bundle-social", "b": "post-bridge"}`. From a terminal: `anchor compare bundle-social post-bridge`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bundle-social.json and https://www.anchorterminal.com/api/v1/tools/post-bridge.json

## Other comparisons with bundle.social or Post Bridge API + MCP

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