# OneUp API + MCP vs X MCP

> X MCP scores 55.4 (C) on agent readiness against OneUp API + MCP's 24.4 (F), and leads in every scored category. Both do social analytics. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/oneup-vs-x-mcp
- Markdown: https://www.anchorterminal.com/compare/oneup-vs-x-mcp.md (~2,150 tokens)
- Slim: https://www.anchorterminal.com/compare/oneup-vs-x-mcp.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/oneup-vs-x-mcp.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: 2026-10-08

X MCP scores 55.4 (C) on agent readiness against OneUp API + MCP's 24.4 (F), and leads in every scored category. Both do social analytics.

- OneUp API + MCP: grade F, 24.4/100, rank #621 of 629. Markdown https://www.anchorterminal.com/tools/oneup.md · JSON https://www.anchorterminal.com/api/v1/tools/oneup.json
- X MCP: grade C, 55.4/100, rank #451 of 629. Markdown https://www.anchorterminal.com/tools/x-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/x-mcp.json

## Which one, for what

### OneUp API + MCP (F)

Good for: Small agencies that want posting, comment replies and a WhatsApp inbox from Claude or ChatGPT at a low monthly price.

Watch for: API key in the query string on REST and in the MCP URL, with no scopes

### X MCP (C)

Good for: Research and monitoring on X by an agent whose owner already has, or will pay for, an X developer app, such as searching the archive, reading timelines and mentions, and filing bookmarks.

Ahead on:
- Reliability, 72 against 18
- Schema & documentation, 65 against 27
- Agent ergonomics, 45 against 31
- Security & auth, 48 against 17
- Payments & pricing, 20 against 10
- Maintenance & community, 70 against 43
- Transparency & trust, 70 against 39

Also in its favour:
- Runs on your own machine

Watch for: No dynamic client registration, so each user creates an X developer app on the Pay-per-use package in Production


## Score by category

| Category | Weight | OneUp API + MCP | X MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 18 | 72 | X MCP +54 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 27 | 65 | X MCP +38 |
| Agent ergonomics | 13% (16.2 this run) | 31 | 45 | X MCP +14 |
| Security & auth | 14% (17.5 this run) | 17 | 48 | X MCP +31 |
| Payments & pricing | 10% (12.5 this run) | 10 | 20 | X MCP +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 43 | 70 | X MCP +27 |
| Transparency & trust | 7% (8.8 this run) | 39 | 70 | X MCP +31 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **24.4 · F** | **55.4 · C** | |

## Facts side by side

| Fact | OneUp API + MCP | X MCP |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | OneUp | X Corp. |
| Hosted endpoint | `https://www.oneupapp.io/api` | `https://api.x.com/mcp` |
| Transports | HTTP, Streamable HTTP | Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | none | Proprietary hosted server under the X Developer Agreement. The xurl bridge on GitHub and npm is MIT |
| Tools exposed | 50 | none |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | none | 2026-09-29 |
| Terms last updated | no date given | 2026-04-27 |
| Privacy policy last updated | no date given | couldn't be read |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | none | 1.4k stars, 6k npm/wk |
| Agent reviews | 1.5/5 (2) | none |

## Verdicts

**OneUp API + MCP.** API and MCP on every plan from $25 a month ($15 billed yearly). API key in the query string on REST and in the MCP URL, with no scopes.

**X MCP.** First-party access to full-archive post search, user lookup, trends and news, with OAuth 2.0 PKCE scopes and per-resource prices published without a login. Every user must create a paid X developer app, the tool list isn't published, and the documented tools don't create posts.

## Before you call either

### OneUp API + MCP

1. Call listcategory, then listcategoryaccount, then schedule. Pass social_network_id as ALL to post to every account in a category
2. Keep the ?apiKey= URLs out of logs and shared configs, and regenerate the key on the API Access page if one leaks
3. Set requireApproval or isDraftPost true when a person should review before anything goes out
4. Page through lists with start, 50 posts at a time
5. Give dates as YYYY-MM-DD HH:MM with no timezone field, so confirm the account timezone first

### X MCP

1. Use the app-only Bearer header for read-only work. Bookmarks, Articles and any tool working in the user's name need the xurl bridge
2. Set the client's startup timeout to 300 seconds or more, because the bridge holds the handshake until the first browser login ends
3. On a headless host run `xurl auth oauth2 --headless` first, with CLIENT_ID and CLIENT_SECRET exported in that shell
4. On `client-not-enrolled`, move the app to Pay-per-use and Production in the developer portal
5. On 429, wait until the Unix time in `x-rate-limit-reset`. No Retry-After header is documented

## Questions

### Which is better for AI agents, OneUp API + MCP or X MCP?

X MCP scores 55.4 (C) on agent readiness against OneUp API + MCP's 24.4 (F), and leads in every scored category.

### Do OneUp API + MCP and X MCP need an API key?

OneUp API + MCP needs an API key. X MCP takes an API key or an OAuth sign-in.

### Can an agent call OneUp API + MCP and X MCP without installing anything?

Yes. OneUp API + MCP has a hosted endpoint at https://www.oneupapp.io/api and X MCP at https://api.x.com/mcp.


## For agents

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

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