free-translation-api

free-translation-api is a skill for Claude Code, Codex from besoeasy/open-skills. It costs 47 tokens per session (3,697 once invoked), scanned A, original, MIT.

A translation workflow using LibreTranslate, an open-source service for converting text between languages. It can use public instances or a self-hosted instance.

In plain words
What is it for?
Use it to translate text, prepare multilingual documentation, process international datasets, or build translation workflows through an API.
Why use it?
It provides an alternative when you need translation without relying on paid commercial translation services or sending data to them.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to translate text, prepare multilingual documentation, process international datasets, or build translation workflows through an API.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/besoeasy/open-skills/free-translation-api
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add besoeasy/open-skills --skill free-translation-api
Clone the repo
git clone --depth 1 https://github.com/besoeasy/open-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for free-translation-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/besoeasy/open-skills/free-translation-api/github.svg)](https://agentmods.dev/skills/besoeasy/open-skills/free-translation-api)
Your own site
<a href="https://agentmods.dev/skills/besoeasy/open-skills/free-translation-api"><img src="https://agentmods.dev/badge/skills/besoeasy/open-skills/free-translation-api/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for free-translation-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/besoeasy/open-skills/free-translation-api"><img src="https://agentmods.dev/badge/skills/besoeasy/open-skills/free-translation-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,697 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 11 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 40
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 49
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 59
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 189
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 363
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 137
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 144
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 259
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium MCP Rug Pull · line 395
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium Data Exfiltration · line 398
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Prompt Injection · line 431
    Subtle instructions detected that may alter agent decision-making or introduce hidden biases.
    Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00047 $0.03697
Opus 5 $0.00023 $0.01849
Sonnet 5 $0.00009 $0.00739
Haiku 4.5 $0.00005 $0.00370

Measured 11d ago against content hash 5ce94ea6be71, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

free-translation-api scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -X POST "https://libretranslate.com/translate" \
skills/free-translation-api/SKILL.md · 491 lines

How it starts

The opening of the file, as written. The whole thing — 491 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Free Translation API — LibreTranslate

Translate text between 100+ languages using free LibreTranslate instances. Open-source, privacy-respecting alternative to Google Translate API ($20/million characters).

Why This Replaces Paid Translation APIs

💰 Cost savings:

  • 100% free — no API keys required for public instances
  • No rate limits — generous limits on public instances
  • Open source — self-hostable for unlimited usage
  • Privacy-first — no data collection or tracking

Perfect for AI agents that need:

  • Text translation without Google Translate API costs
  • Privacy-respecting translation (no data retention)
  • High volume translation without quotas
  • Offline translation capability (self-hosted)

Quick comparison

Service Cost Rate limit Privacy API key required
Google Translate API $20/1M chars Unlimited with payment ❌ Tracked ✅ Yes
DeepL API $5-25/1M chars 500k chars/month free ❌ Tracked ✅ Yes
LibreTranslate Free Varies by instance ✅ Private ❌ No

Skills

translate_text

Basic text translation using LibreTranslate.

# Translate text (English to Spanish)
curl -s -X POST "https://libretranslate.com/translate" \
  -H "Content-Type: application/json" \
  -d '{
    "q": "Hello, how are you?",
    "source": "en",
    "target": "es"
  }' | jq -r '.translatedText'

# Auto-detect source language
curl -s -X POST "https://libretranslate.com/translate" \
  -H "Content-Type: application/json" \
  -d '{
    "q": "Bonjour le monde",
    "source": "auto",
    "target": "en"
  }' | jq -r '.translatedText'

# Translate from file
TEXT=$(cat document.txt)
curl -s -X POST "https://libretranslate.com/translate" \
  -H "Content-Type: application/json" \
  -d "{
    \"q\": \"$TEXT\",
    \"source\": \"en\",
    \"target\": \"fr\"
  }" | jq -r '.translatedText' > document_fr.txt

Node.js:

async function translateText(text, targetLang, sourceLang = 'auto', instance = 'https://libretranslate.com') {
  const res = await fetch(`${instance}/translate`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      q: text,
      source: sourceLang,
      target: targetLang
    })
  });
  
  if (!res.ok) {
    const error = await res.text();
    throw new Error(`Translation failed: ${error}`);
  }
  
  const data = await res.json();
  return data.translatedText;
}

// Usage
// translateText('Hello world', 'es', 'en')
//   .then(translated => console.log(translated));
// Output: "Hola mundo"

Read the full file on GitHub · 491 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 491 lines · 47 tokens per session scan A 5ce94ea6be71

Subscribe to this mod's changes

free-translation-api is a skill published in the GitHub repository besoeasy/open-skills (132 stars, last pushed 7d ago), licensed MIT. It adds 47 tokens to every session and 3,697 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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