TranslateHub
Translation that reads like a person wrote it, with per-sentence confidence so you know exactly which lines to check. Independent quality grading and author voice preservation included.
+ $0.01 per tool call
- Access to all tools via gateway
- 2,000 calls/month
- Cancel anytime
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TranslateHub translates prose the way a translator would, not the way a phrasebook would - and then tells you how well it went.
The problem with machine translation was never that it is bad. It is that you cannot tell when it is bad. A page comes back fluent and confident, and somewhere in it are two sentences that mean the wrong thing, and you have no way to find them short of reading the whole thing in a language you may not speak.
So every translation comes back with per-sentence confidence. Instead of a wall of text you cannot evaluate, you get a shortlist - the three or four lines the model was unsure about. Those get a human minute; the rest ships.
grade_translation goes further and scores any translation independently on accuracy, fluency, tone, terminology and authenticity, with written feedback. It works on translations this service did not produce, which makes it the tool for comparing two candidates or deciding whether a passage needs a reviewer at all. It is the same grader used to evaluate human translator applicants - a judgement a model cannot reliably make about its own output.
For longer work, voice fingerprints keep an author sounding like themselves across passages, and a glossary keeps terminology fixed where it matters. Billing is by the word at the same rate as going direct, so nothing is lost by routing through an agent.
Full product at www.translatehub.io.
Use cases
Translate prose while keeping an author voice intact
Decide whether a translation is good enough to ship, or needs a human
Keep terminology consistent across a long document or a whole catalogue
Compare two candidate translations and pick the better one on evidence
Localise marketing copy without it reading like localised marketing copy
Spot the three sentences in a page that actually need a reviewer
Features
Per-sentence confidence scores, so you know which lines are shaky rather than re-reading everything
Independent grading on accuracy, fluency, tone, terminology and authenticity, with written feedback
Reusable voice fingerprints that carry an author style across passages
Glossary support for terminology that must stay consistent
Billed by the word, not per call - short translations stay genuinely cheap
Grades any translation, including ones this service did not produce
Any language the underlying model handles - pass a name or a code
Frequently asked questions
Q.What is TranslateHub, in one sentence?
A translation service built for prose rather than strings - it translates the way a translator would, then tells you how well it went. See www.translatehub.io.
Q.Do I need a TranslateHub account?
No. Your mcpmarket subscription is the only account you need. Calls are authenticated with a short-lived token issued per request, so your API key is never shared with the upstream service.
Q.How is it billed?
By word: $0.01 per 10 words, the same rate as TranslateHub charges directly. A 300-word passage costs $0.30. Nothing is charged per call, so short translations stay cheap and routing through the marketplace is never more expensive than going direct.
Q.What do per-sentence confidence scores actually give me?
A shortlist. Instead of a wall of translated text you have no way to evaluate, you get exactly which sentences the model was unsure about - usually three or four in a page. Those are the ones worth a human minute; the rest you can ship.
Q.What does grade_translation do?
It scores a translation you already have on accuracy, fluency, tone, terminology and authenticity, with written feedback. It works on translations this service did not produce, which makes it useful for comparing two candidates or deciding whether a passage needs human review. It is the same grader used to evaluate human translator applicants.
Q.What is a voice fingerprint?
A reusable profile of how an author writes - sentence rhythm, register, habits of phrasing. Analyse a sample once, then pass the fingerprint with later translations so a long work stays in one voice instead of drifting chapter by chapter.
Q.What is the size limit?
1200 words per call. Split longer text into passages - that also gives better results, since each call gets full attention. Whole books are a different product: use TranslateHub directly for those.
Q.Which languages are supported?
Any language the underlying model handles - pass a name like Korean or a code like ja. Quality is strongest for major languages and for literary prose, which is what it was tuned on.
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