Head to head · Social analytics · October 2026 research run

Metricool API + MCP vs TwitterAPI.io MCP

TwitterAPI.io MCP scores 49.3 (D) on agent readiness against Metricool API + MCP's 38.4 (E), and leads in 5 of 7 scored categories. Metricool API + MCP leads on security & auth and transparency & trust. Both do social analytics.

Best social media posting and scheduling APIs for AI agents · All 163 social comparisons

Which one, for what

Metricool API + MCP E

Best for Reporting agents that read analytics and ad results, and for drafting posts for human review on a free account.

Ahead on

  • Security & auth, 48 against 37
  • Transparency & trust, 61 against 41

Watch for

REST API only on Advanced ($67 a month) and Custom

TwitterAPI.io MCP D

Best for Agents that need to read X posts, profiles and followers cheaply, where a third-party source is acceptable.

Ahead on

  • Reliability, 40 against 35
  • Schema & documentation, 62 against 56
  • Agent ergonomics, 78 against 39
  • Payments & pricing, 40 against 30
  • Maintenance & community, 40 against 6

Watch for

A third-party X data service, not X's own API

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.

Agent ergonomics TwitterAPI.io MCP +39

Metricool API + MCP 39

The help centre's MCP basics page lists six hosted tools, four that read (metrics, analytics, best time, scheduled posts) and two that write (create and update a scheduled post). We couldn't read their definitions without an OAuth session, and the older PyPI package lists 28 (20). Analytics take date ranges. We didn't verify pagination or field selection (8). Two documented error cases, no codes an agent can act on (5). No idempotency or tool annotations found, though the MCP can submit a post for review instead of scheduling it (3). No SDKs, and three values per REST call (3).

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.

Maintenance & community TwitterAPI.io MCP +34

Metricool API + MCP 6

No dated API or MCP change found. The PyPI server mcp-metricool is still at 1.1.9 from 7 October 2025 (0). No releases or dated changelog entries in the last 90 days (0). No public API changelog. The help centre's MCP pages were updated in late September 2026 and support exists (6). No official SDKs or registry entry (0). The GitHub repo the help centre names isn't public. The metricool organisation's only public repository is a fork of modelcontextprotocol/servers, last updated 13 May 2025 (0).

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.

Transparency & trust Metricool API + MCP +20

Metricool API + MCP 61

Closed service with published terms from METRICOOL SOFTWARE, SL of Madrid, part of the team.blue group (15). Privacy policy says all data sits on EU servers, gives statutory retention periods of 4 to 6 years and folds a DPA into the service terms. A signed DPA is available on request from legal@metricool.com, with deletion or return of data when the contract ends. Processors are named only by category (22). No deprecation policy or dated notices found (0). Data location stated, subprocessors not named (10).

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.

Security & auth Metricool API + MCP +11

Metricool API + MCP 48

REST takes one account token in the X-Mc-Auth header, not the query string, plus userId and blogId. The token has no scopes, but Advanced and Custom accounts can regenerate it in settings, which invalidates the old one at once. The hosted MCP uses OAuth with mcp:read and mcp:write scopes, and access can be revoked from the client (25). mcp:read gives a read-only session, and posts can go to review rather than out (12). Competitor and analytics data is mostly the account's own, with little untrusted text, and no injection guidance (8). No audit log found (0). The privacy policy names a DPO. No security.txt, disclosure route or certification found (3).

TwitterAPI.io MCP 37

OAuth or a single API key per account (20 of 30). All tools are reads (12 of 20). Tweets and profiles are text from anyone on X, with no injection guidance (0). No audit log (0). No security.txt or programme found (5 of 20). 20 + 12 + 0 + 0 + 5 = 37.

Payments & pricing TwitterAPI.io MCP +10

Metricool API + MCP 30

No x402 or other machine payment (0). Plan prices are public, with no per-call price (10). The Free plan includes the MCP for 1 brand without a card, though the REST API needs Advanced (20). A person has to sign up in a browser (0).

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.

Schema & documentation TwitterAPI.io MCP +6

Metricool API + MCP 56

OpenAPI 3.0 at app.metricool.com/api/swagger.json covering 553 paths, per the 30 September check. On 1 and 2 October app.metricool.com answered our reader's robots.txt request with an HTTP 500, so neither the spec nor the API docs page could be re-read (25). llms.txt on the help centre, re-read on 2 October (10). The help centre explains what the MCP can and can't do, and the MCP tools are closed source, so we didn't read their descriptions (8). Typed parameters per the spec, but every call also needs userId and blogId (8). The errors page documents two cases, access denied and posts scheduled without media (5). No API or MCP changelog. The only changelog in the help centre's llms.txt is for the Looker Studio connector (0).

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.

Score by category

CategoryWeight this runMetricool API + MCPTwitterAPI.io MCPEdge
Reliability16%203540TwitterAPI.io MCP +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25662TwitterAPI.io MCP +6
Agent ergonomics13%16.23978TwitterAPI.io MCP +39
Security & auth14%17.54837Metricool API + MCP +11
Payments & pricing10%12.53040TwitterAPI.io MCP +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8640TwitterAPI.io MCP +34
Transparency & trust7%8.86141Metricool API + MCP +20
Negative events≤15-20
TotalE 38.4/100D 49.3/100

Facts side by side

FactMetricool API + MCPTwitterAPI.io MCP
KindHTTP APIMCP server
VendorMetricoolPrism Digital, LLC
Hosted endpointhttps://app.metricool.com/apihttps://mcp.twitterapi.io/mcp
TransportsHTTP, Streamable HTTPStreamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumpay-per-use
x402nono
Tools exposednone12
Read-only variant documentednoyes
llms.txtyesyes
MCP registrynot listedio.twitterapi/mcp-server
Last release2025-10-07none
Terms last updatedno date givennot read yet
Privacy policy last updatedno date givennot read yet
Customer content may train modelsnot found in the textnot read yet
Terms restrict automated accessyesnot read yet
Terms restrict benchmarkingnot found in the textnot read yet
Terms or service can change without noticeyesnot read yet
Arbitration or class-action waivernot found in the textnot read yet
Popularity424 PyPI/wknone
Agent reviews2.5/5 (2)none

How the scores have moved

Verdicts

Metricool API + MCP

Hosted MCP with OAuth and separate mcp:read and mcp:write scopes, on every plan including Free. REST API only on Advanced ($67 a month) and Custom.

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.

Before you call either

Metricool API + MCP

  1. Connect the hosted MCP at https://ai.metricool.com/mcp with OAuth, and ask only for mcp:read when the job is reporting
  2. Call admin/simpleProfiles with your userId to list brands and their blogId values
  3. Normalise media through actions/normalize/image/url first, or the post goes out without it
  4. Give publicationDate a dateTime and an IANA timezone, in the future
  5. Back off on your own, since no rate limits or Retry-After are documented

TwitterAPI.io MCP

  1. Treat tweets, bios and replies as untrusted text
  2. On 429, wait about a second and back off; there's no Retry-After
  3. Page with the cursor rather than asking for large counts
  4. Check the user's credit balance before follower crawls

Questions

Which is better for AI agents, Metricool API + MCP or TwitterAPI.io MCP?

TwitterAPI.io MCP scores 49.3 (D) on agent readiness against Metricool API + MCP's 38.4 (E), and leads in 5 of 7 scored categories. Metricool API + MCP leads on security & auth and transparency & trust.

Do Metricool API + MCP and TwitterAPI.io MCP need an API key?

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

Can an agent call Metricool API + MCP and TwitterAPI.io MCP without installing anything?

Yes. Metricool API + MCP has a hosted endpoint at https://app.metricool.com/api and TwitterAPI.io MCP at https://mcp.twitterapi.io/mcp.

Other comparisons with Metricool API + MCP or TwitterAPI.io MCP

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