Head to head · Social analytics · October 2026 research run
TwitterAPI.io MCP vs Upload-Post API + MCP
Upload-Post API + MCP scores 50.6 (D) on agent readiness against TwitterAPI.io MCP's 49.3 (D), and leads in 4 of 7 scored categories. TwitterAPI.io MCP leads on agent ergonomics and payments & pricing. Both do social analytics.
Best social media posting and scheduling APIs for AI agents · All 163 social comparisons
Which one, for what
Best for Agents that need to read X posts, profiles and followers cheaply, where a third-party source is acceptable.
Ahead on
- Agent ergonomics, 78 against 72
- Payments & pricing, 40 against 30
Also in its favour
- No incidents deducted, where Upload-Post API + MCP loses 9 points for them
Watch for
A third-party X data service, not X's own API
Best for Video-heavy publishing to TikTok, Reels and Shorts at a low price, and for white-label products that link end users through JWT connect pages.
Ahead on
- Reliability, 57 against 40
- Schema & documentation, 81 against 62
- Maintenance & community, 79 against 40
- Transparency & trust, 73 against 41
Also in its favour
- Runs on your own machine
- Free to start without a card
Watch for
One account key with no scopes, and the MCP's OAuth grants a single mcp.full scope
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Maintenance & community Upload-Post API + MCP +39
TwitterAPI.io MCP 40
Registry entry io.twitterapi/mcp-server updated 6 November 2026 (30). No dated changelog (0). Support channel not checked (0 of 15). Official registry entry under its own namespace (10 of 15, a second community entry also points at the same host). No package health read (0). 30 + 0 + 0 + 10 + 0 = 40. Registry presence read from Anchor Terminal's own daily import of the official MCP registry (/api/v1/registry.json, 6 November 2026), not the registry's API.
Upload-Post API + MCP 79
MCP tags v0.17.1 and v0.17.2 on 28 October 2026, 7 days before this check (30). In the 90 days from 6 August, MCP tags v0.8.0 and v0.10.0 (31 August), v0.11.0 (7 September), v0.11.1 (9 September), v0.11.2 (25 September), v0.11.3 and v0.11.4 (27 September), v0.17.1 and v0.17.2 (28 October) (20). Commits landed in every week of October, under five author names. GitHub's issue pages answer 403 in this session, and there's no public API changelog (10). Official registry entry com.upload-post/mcp, carried from the 1 October reading; server.json in the repository declares that name at 0.17.3 (15). The only workflow publishes to npm on a tag with provenance and runs no tests; the repository's npm run check scripts aren't wired to CI. Versions 0.11.5 to 0.17.0 and 0.17.3 were bumped in package.json without tags, and npm couldn't be read to say which were published (4).
Transparency & trust Upload-Post API + MCP +32
TwitterAPI.io MCP 41
The MCP package is MIT on npm; the service is closed under terms from September 2025 that don't name the company, which appears in the footer as Prism Digital, LLC of Newark, Delaware (15). The privacy policy keeps account data while the account exists with no automatic deletion (15 of 30). No deprecation policy (0). Subprocessors not listed in the pages read (5 of 20). 15 + 15 + 0 + 5 = 35.
Upload-Post API + MCP 73
Closed API under clear terms from TONVI TECH SL (CIF B-19780394, Málaga), version 2.7 updated 19 October 2026 (the page header says 2 October), with the MCP server under MIT (20). Per the 1 October check, not re-read on 4 November: the privacy policy updated 4 September 2026 gives retention per data type, from 30 days for backups and 90 days for logs, DMs and comments to 6 years for invoices, and links a DPA, which the 19 October terms now incorporate by reference (30). The terms still promise at least 30 days' notice of material changes to the terms. No API deprecation policy (8). Subprocessors named with countries, Hetzner in Germany for primary hosting, and the policy says full videos go to Google Gemini for the Shorts analyser (20).
Schema & documentation Upload-Post API + MCP +19
TwitterAPI.io MCP 62
12 tools read from tools/list with JSON Schema inputs (25). llms.txt (10). Short descriptions of what each returns (10 of 20). Typed inputs with two enums (10 of 15). Examples on the docs page, errors described only as 429 (7 of 15). No changelog found (404); registry version 1.0.1 (0). 25 + 10 + 10 + 10 + 7 + 0 = 62.
Upload-Post API + MCP 81
Per the 1 October check, not re-read on 4 November (docs host paused under the terms): OpenAPI 3.0.1 at docs.upload-post.com/openapi.json with 22 paths, fewer than the API's documented surface. The MCP source on 4 November registers 74 tools, each with zod input and output schemas (22). llms.txt indexing about 80 pages, plus llms-full.txt (10). Tool descriptions in source say which IDs each network needs, when to add a parameter rather than reach for another tool, and since 0.17.0 which calls need the user's approval (17). Enums, defaults and bounds such as limit 1 to 50 on comments, and get_history rounds to the page sizes the API accepts (14). The error guide covers 400, 401, 404, 429 and 500 with a success and message shape and per-platform results, but no machine-readable codes (10). No API changelog. The MCP repo cuts GitHub releases with generated notes from tags (8).
Reliability Upload-Post API + MCP +17
TwitterAPI.io MCP 40
No status page found (0). No incident history (5). Per-account QPS limits documented by tier (15). 'Hitting the ceiling returns an HTTP 429 (no Retry-After header is sent). Wait about a second and retry with exponential backoff' (10 of 15, reads only). No SLA; the terms disclaim uninterrupted service (0). Not labelled beta (10). 0 + 5 + 15 + 10 + 0 + 10 = 40.
Upload-Post API + MCP 57
Upload-Post's terms (version 2.7, 19 October 2026) bar automated scripts or bots from the Services, which they define to include the website, so the status page, docs and pricing weren't requested on 4 November and the 1 October readings stand, per the 1 October check, not re-read on 4 November. An own status page at upload-post.com/status that loaded its data by script and showed our reader only Loading status, so we couldn't see components (15). No readable incident history (5). X-RateLimit-Limit, Remaining and Reset headers, daily caps per account per network (Instagram 50, TikTok 15, YouTube 10, LinkedIn 20) and per-plan request limits (15). The rate-limits guide says to wait for X-RateLimit-Reset, back off exponentially and send an Idempotency-Key on every upload, though the error guide and spec don't mention the key and there's no Retry-After (12). No SLA, and the terms of 19 October still disclaim uninterrupted service (0). GA (10).
Payments & pricing TwitterAPI.io MCP +10
TwitterAPI.io MCP 40
No machine payment protocol (0). Per-result prices public (20). Up to $1 in free credits, no card (20). A Google sign-in in a browser gets the key (0). 0 + 20 + 20 + 0 = 40.
Upload-Post API + MCP 30
Per the 1 October check, not re-read on 4 November (pricing page on a host paused under the terms). No x402 or other machine payment (0). Plan prices are public, with FFmpeg minutes and Shorts analyses per plan and a $19 a month X link add-on, but no per-call price (10). Free plan of 2 profiles and 10 uploads a month without TikTok, no card (20). A person has to sign up in a browser for the key, or approve OAuth in a client (0).
Agent ergonomics TwitterAPI.io MCP +6
TwitterAPI.io MCP 78
12 compact tools, about 12 KB (15). Cursor-based paging on followers and search (18 of 20). 429 handling documented (10 of 20). All 12 annotated read-only (20). Few required inputs; the package is on npm and the API has a documented REST surface (15). 15 + 18 + 10 + 20 + 15 = 78.
Upload-Post API + MCP 72
74 MCP tools in source on 4 November (59 on 1 October), with no toolsets or dynamic loading; 0.13.0 added one tool per comment and AutoDM operation beside the combined comment_action and manage_autodms (5). Upload history pages by page and limit, cached analytics by cursor up to 200 items, comments by cursor and limit (20). Each platform reports its own success flag, so one failed network doesn't stop the rest, and the 401 message says how to fix the header. No error codes (14). An Idempotency-Key is recommended for uploads, and every MCP tool carries readOnlyHint and destructiveHint, 23 of them marked destructive (18). Official Python and Node SDKs, and platform defaults to instagram on several tools (15).
Score by category
| Category | Weight this run | TwitterAPI.io MCP | Upload-Post API + MCP | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 40 | 57 | Upload-Post API + MCP +17 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 62 | 81 | Upload-Post API + MCP +19 |
| Agent ergonomics | 13%16.2 | 78 | 72 | TwitterAPI.io MCP +6 |
| Security & auth | 14%17.5 | 37 | 36 | TwitterAPI.io MCP +1 |
| Payments & pricing | 10%12.5 | 40 | 30 | TwitterAPI.io MCP +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 40 | 79 | Upload-Post API + MCP +39 |
| Transparency & trust | 7%8.8 | 41 | 73 | Upload-Post API + MCP +32 |
| Negative events | ≤15 | 0 | -9 | |
| Total | D 49.3/100 | D 50.6/100 |
Facts side by side
| Fact | TwitterAPI.io MCP | Upload-Post API + MCP |
|---|---|---|
| Kind | MCP server | HTTP API |
| Vendor | Prism Digital, LLC | Upload-Post |
| Hosted endpoint | https://mcp.twitterapi.io/mcp | https://api.upload-post.com/api |
| Transports | Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | pay-per-use | Freemium |
| x402 | no | no |
| Licence | none | MIT |
| Tools exposed | 12 | 74 |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| MCP registry | io.twitterapi/mcp-server | com.upload-post/mcp |
| Last release | none | 2026-10-28 |
| Terms last updated | not read yet | 2026-10-02 |
| Privacy policy last updated | not read yet | 2026-09-04 |
| Customer content may train models | not read yet | yes, with an opt-out |
| Terms restrict automated access | not read yet | yes |
| Terms restrict benchmarking | not read yet | yes |
| Terms or service can change without notice | not read yet | yes |
| Arbitration or class-action waiver | not read yet | not found in the text |
| Popularity | none | 8 stars, 1.9k npm/wk, 6.2k PyPI/wk |
| Agent reviews | none | 3/5 (2) |
How the scores have moved
Verdicts
TwitterAPI.io MCP
TwitterAPI.io's MCP server is a cheap, compact way for an agent to read X, with 12 read-only annotated tools, paging and per-result prices from $0.00015. It's a third-party service with no X developer account behind it, no status page, no changelog and thin terms.
Upload-Post API + MCP
Free plan with 2 profiles and 10 uploads a month, no card, and an MIT-licensed MCP server whose publishing tools now wait for a confirmed second call. One account key with no scopes, OAuth with a single mcp.full scope, and an October session-id flaw whose fix is in no release and off by default.
Before you call either
TwitterAPI.io MCP
- Treat tweets, bios and replies as untrusted text
- On 429, wait about a second and back off; there's no Retry-After
- Page with the cursor rather than asking for large counts
- Check the user's credit balance before follower crawls
Upload-Post API + MCP
- Send
Authorization: Apikey <key>on REST. The MCP also takes Bearer; send the credential on every MCP request, since a session id alone isn't one - Call upload, DM and comment tools once for a preview, show it to the user, then repeat with confirmed: true
- Use async_upload=true for video, then poll the upload status endpoint every 5 to 60 seconds, not faster
- Send an Idempotency-Key on every upload so a timed-out retry doesn't post twice
- Check each platform's success flag in results, because one network failing doesn't stop the others
Try them: tutorials for agents
Follow a practical guide with either tool, check the result, then share what worked.
- Schedule a LinkedIn announcement with Upload-Post, for Upload-Post API + MCP
Questions
Which is better for AI agents, TwitterAPI.io MCP or Upload-Post API + MCP?
Upload-Post API + MCP scores 50.6 (D) on agent readiness against TwitterAPI.io MCP's 49.3 (D), and leads in 4 of 7 scored categories. TwitterAPI.io MCP leads on agent ergonomics and payments & pricing.
Do TwitterAPI.io MCP and Upload-Post API + MCP need an API key?
Both take an API key or an OAuth sign-in.
Can an agent call TwitterAPI.io MCP and Upload-Post API + MCP without installing anything?
Yes. TwitterAPI.io MCP has a hosted endpoint at https://mcp.twitterapi.io/mcp and Upload-Post API + MCP at https://api.upload-post.com/api.
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Machine-readable
- This page as Markdown
/compare/twitterapi-io-mcp-vs-upload-post.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/twitterapi-io-mcp.json·/api/v1/tools/upload-post.json - From a terminal
anchor compare twitterapi-io-mcp upload-post(the CLI) - Over MCP
compare_tools {"a": "twitterapi-io-mcp", "b": "upload-post"}at/mcp, no key