io.usefulapi/crowdin

REMOTE · CROWDIN.USEFULAPI.IO · SCANNED AUG 3

MCP server for Crowdin — projects, files, strings, translation progress, tasks, and members.

Available components

+4 this week 73 73 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security78

The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
HTTPS not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial

Transport & Reachability100

Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass

Schema Quality & AI Usability77

AI-judged instruction clarity (excellent).Pass
Tool/resource definitions use about 1229 tokens (~102/item across 12 items; 12 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management23

Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass

Capabilities60

Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · crowdin.usefulapi.io

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add --transport http io-usefulapi-crowdin https://crowdin.usefulapi.io/mcp

# ~/.codex/config.toml

[mcp_servers.io-usefulapi-crowdin]
url = "https://crowdin.usefulapi.io/mcp"

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-usefulapi-crowdin": {
      "type": "remote",
      "url": "https://crowdin.usefulapi.io/mcp",
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add io-usefulapi-crowdin --url https://crowdin.usefulapi.io/mcp --transport streamable-http

# ~/.hermes/config.yaml

mcp_servers:
  io-usefulapi-crowdin:
    url: "https://crowdin.usefulapi.io/mcp"

// mcp.json

{
  "mcpServers": {
    "io-usefulapi-crowdin": {
      "type": "http",
      "url": "https://crowdin.usefulapi.io/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

2 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
31 Jul 26 +3
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
29 Jul 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
28 Jul 26 +1
- Stability: unverified → 0.03 ▲ functional
27 Jul 26 +57
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
26 Jul 26 12

First indexed and scored.

Show 6 earlier entries Hide earlier entries

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://crowdin.usefulapi.io/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject	Issuer	Valid from	Valid until	Key	Signature	Serial
CN=usefulapi.io	CN=WE1,O=Google Trust Services,C=US	17 Jul 2026	15 Oct 2026	ECDSA 256	ECDSA-SHA256	3003f59936fe2730136e18aa38aa463e
SANs: usefulapi.io, crowdin.usefulapi.io, *.crowdin.usefulapi.io
CN=WE1,O=Google Trust Services,C=US (CA)	CN=GTS Root R4,O=Google Trust Services LLC,C=US	13 Dec 2023	20 Feb 2029	ECDSA 256	ECDSA-SHA384	7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA)	CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE	15 Nov 2023	28 Jan 2028	ECDSA 384	SHA256-RSA	7fe530bf331343bedd821610493d8a1b

DNSSEC insecure

Validation of crowdin.usefulapi.io. — Not signed

Zone	DS	Keys	Algorithms	Outcome
.	trust_anchor	20326, 38696	8, 8	Verified
io.	present	57355	8	Verified
usefulapi.io.	absent			Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation

Authentication Enforced and verified

The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.

Result	Enforced and verified
Enforced	On tool calls
HTTP status	200

WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://crowdin.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"

Bearer realm="OAuth", resource_metadata="https://crowdin.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"

Protected resource metadata

Document	https://crowdin.usefulapi.io/.well-known/oauth-protected-resource/mcp
Retrieved	Yes
Resource	https://crowdin.usefulapi.io/mcp
Authorisation server	https://crowdin.usefulapi.io

Transports 2 probes

Transport	URL	Outcome	Status	Location
streamable-http	https://crowdin.usefulapi.io/mcp	Verified	200
http (plaintext)	http://crowdin.usefulapi.io/mcp	Inconclusive	401

MCP tools — 12 exposed · ~1,229 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

crowdin_add_string Add source string ~131

Adds a source string to a file in a Crowdin project (additive). Crowdin API: POST /projects/{projectId}/strings.

Input Output Examples

Name	Type	Req	Description
context	string	—	Optional context shown to translators.
fileId	integer	yes	Id of the source file to add the string to.
identifier	string	—	Optional unique string identifier / key.
isHidden	boolean	—	Hide the string from translators.
maxLength	integer	—	Max allowed translation length.
projectId	integer	yes	Numeric project id (path).
text	string	yes	The source string text.

No output schema declared.

No examples provided.

crowdin_add_translation Add translation ~126

Adds a translation for a source string in a target language (additive). Crowdin API: POST /projects/{projectId}/translations.

Input Output Examples

Name	Type	Req	Description
languageId	string	yes	Target language id, e.g. "fr", "de", "uk".
pluralCategoryName	string	—	Plural form, e.g. "one", "few", "many", "other".
projectId	integer	yes	Numeric project id (path).
stringId	integer	yes	Id of the source string to translate.
text	string	yes	The translation text.

No output schema declared.

No examples provided.

crowdin_get_language_progress Language translation progress ~85

Per-target-language translation & approval completion percentages for a project — the headline localization status. Crowdin API: GET /projects/{projectId}/languages/progress.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.

No output schema declared.

No examples provided.

crowdin_get_project Get project ~52

Get a single project's details by id (settings, languages, counts). Crowdin API: GET /projects/{projectId}.

Input Output Examples

Name	Type	Req	Description
projectId	integer	yes	Numeric project id (from crowdin_list_projects).

No output schema declared.

No examples provided.

crowdin_list_branches List branches ~90

List version branches in a project (id, name, title). Crowdin API: GET /projects/{projectId}/branches.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Max rows (max 500, default 25).
name	string	—	Filter by branch name.
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.

No output schema declared.

No examples provided.

crowdin_list_directories List directories ~106

List directories (folders) in a project (id, name, path). Crowdin API: GET /projects/{projectId}/directories.

Input Output Examples

Name	Type	Req	Description
branchId	integer	—	Filter by branch id.
directoryId	integer	—	Filter by parent directory id.
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.

No output schema declared.

No examples provided.

crowdin_list_files List files ~118

List source files in a project (id, name, path, type, status). Crowdin API: GET /projects/{projectId}/files.

Input Output Examples

Name	Type	Req	Description
branchId	integer	—	Filter by branch id.
directoryId	integer	—	Filter by directory id.
filter	string	—	Filter files by name substring.
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.

No output schema declared.

No examples provided.

crowdin_list_members List project members ~93

List members of a project (id, username, role, permissions). Crowdin API: GET /projects/{projectId}/members.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.
search	string	—	Search members by name/username/email.

No output schema declared.

No examples provided.

crowdin_list_projects List projects ~107

List projects the token can access (id, name, sourceLanguageId, targetLanguageIds). Good first call to discover project ids. Crowdin API: GET /projects.

Input Output Examples

Name	Type	Req	Description
groupId	integer	—	Filter by group id (Enterprise).
hasManagerAccess	—	—	1 = only projects where you are a manager.
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).

No output schema declared.

No examples provided.

crowdin_list_strings List source strings ~142

List source strings in a project (id, text, identifier, context). Crowdin API: GET /projects/{projectId}/strings.

Input Output Examples

Name	Type	Req	Description
branchId	integer	—	Filter by branch id.
croql	string	—	Crowdin Query Language filter, e.g. count of words <= 5.
fileId	integer	—	Filter by source file id.
filter	string	—	Filter strings by text or identifier substring.
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.

No output schema declared.

No examples provided.

crowdin_list_supported_languages List supported languages ~68

Crowdin's catalog of supported languages (id, name, locale, twoLettersCode). Crowdin API: GET /languages.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).

No output schema declared.

No examples provided.

crowdin_list_tasks List tasks ~111

List translation/proofreading tasks in a project (id, title, status, assignees). Crowdin API: GET /projects/{projectId}/tasks.

Input Output Examples

Name	Type	Req	Description
assigneeId	integer	—	Filter by assignee user id.
limit	integer	—	Max rows (max 500, default 25).
offset	integer	—	Rows to skip (default 0).
projectId	integer	yes	Numeric project id.
status	string	—	Filter by task status.

No output schema declared.

No examples provided.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

26 Jul 3 Aug

Day	Score
26 Jul	12
27 Jul	69
28 Jul	70
29 Jul	71
30 Jul	69
31 Jul	72
1 Aug	72
2 Aug	73
3 Aug	73