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Grammarworld

Real grammar facts and example sentences for 8 world languages — Spanish, French, German, Mandarin, Arabic, Russian, Japanese, Swahili

Unify Dynamics LLC

Documentation
Tools5read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Which languages do you cover?
Tools called
list_languages
How does German word order work?
Tools called
language_grammar
Which languages have no grammatical gender?
Tools called
search_features
Give me an example of Swahili noun-class agreement
Tools called
example_sentence
Compare Russian and German cases
Tools called
compare_languages

About

Grammarworld is a fully local grammar-reference overview for 8 world languages: Spanish, French, German, Mandarin Chinese, Arabic, Russian, Japanese, and Swahili — deliberately excluding English and the Hindi language family, which are covered by other connectors. list_languages lists all 8 with family, script, and overview. language_grammar gives the full overview for one language, with real example sentences, glosses, and translations for each core feature. search_features does a keyword search across every feature in all 8 languages. example_sentence returns one example, optionally for a specific feature. compare_languages puts two languages side by side. This is a starting overview of genuinely distinctive core features, not a comprehensive grammar. Keyless; fully local; zero upstream calls; nothing stored.

Sources: Computed locally / hand-curated — language family, script, grammar features, and example sentences hand-curated from standard descriptive-linguistics references; fully local, zero upstream calls

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.
Privacy policyTerms

What it can do

5 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Browse2 tools
  • List languagesLists all 8 covered languages with their family, script, and a one-line overview.
  • Language grammarThe full grammar overview for one language — family, script, and its core distinctive grammar features, each with a real example sentence, gloss,…
Look up2 tools
  • Search featuresKeyword search across every grammar feature and explanation in all 8 languages.
  • Example sentenceOne real example sentence (with gloss and translation) for a language, optionally for a specific grammar feature.
Compare1 tools
  • Compare languagesPuts two languages' grammar-feature overviews side by side.

Information

PublisherUnify Dynamics LLC
CategoryCulture & language
LanguagesEnglish
Built forGlobal
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://grammarworld.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide

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Documentation

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What Grammarworld is for

"Does Japanese have grammatical gender?", "how does German word order work?", "what's a measure word in Mandarin?", "compare Russian and German cases" — a fully local grammar-reference overview for 8 world languages, each covered through a handful of genuinely distinctive core features with real example sentences.

Which 8 languages, and why

Spanish, French, German, Mandarin Chinese, Arabic, Russian, Japanese, and Swahili — chosen to maximize genuine grammatical diversity rather than near-duplicate coverage. English and the Hindi language family are intentionally excluded, since they're covered by other reference connectors in this catalog.

  • Spanish & French — grammatical gender with agreement, and heavy verb conjugation by person/tense/mood.
  • German — a four-case system (nominative/accusative/dative/genitive) and fixed verb-position rules.
  • Mandarin Chinese — no verb conjugation at all, required measure words, and tone that changes word meaning.
  • Arabic — root-and-pattern (triliteral root) morphology and verbs that inflect for the subject's gender.
  • Russian — a six-case system and a perfective/imperfective verb-aspect distinction.
  • Japanese — no grammatical gender, particle-marked grammatical roles, and grammaticalized politeness levels.
  • Swahili — a noun-class system (not sex-based) with agreement across adjectives and verbs.

What it does

list_languages lists all 8 with their family, script, and a one-line overview. language_grammar gives the full overview for one language — every core feature, each with a real example sentence, a word-for-word gloss, and an English translation. search_features does a keyword search across every feature and explanation in all 8 languages at once (try "gender", "case", "tone", "particles"). example_sentence returns one real example, optionally for a specific feature. compare_languages puts two languages' feature overviews side by side.

What is hand-curated vs. computed

Every language fact, feature, example sentence, gloss, and translation is hand-curated from standard descriptive-linguistics references — not invented, not machine-translated. Lookup, keyword search, and side-by-side comparison are computed at request time from that bundled reference.

What it is not

This is a starting overview of a small number of genuinely distinctive core features per language — not a comprehensive grammar, a textbook, or a substitute for a dedicated course or a fluent speaker's guidance. Each language has far more grammatical nuance (irregular forms, regional variation, exceptions) than five features can capture.

Built and maintained by Unify Dynamics LLC. Contact: agent@connectorbay.com.

Privacy policy

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Grammarworld — Privacy Policy

Effective 28 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Grammarworld is. Grammarworld is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf for a fully local grammar-reference overview of 8 world languages. You interact with your assistant; the assistant sends us only the values needed for that one response.

What we receive. The arguments of each tool call — a language name, a feature name, or a search keyword — the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

Everything is answered locally and nothing is stored. Every language fact, feature, and example sentence is read from a bundled, hand-curated reference file; there is no upstream call at all. No request is forwarded to any third party, and no query is logged in request bodies, recorded, or used to train anything.

What we do not receive or store. We do not receive your conversation with the assistant, your name, or any other identifying information, and we do not build a profile of what you've looked up over time — each call is answered independently.

Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

Sub-processors. None — every tool is answered locally. Hosting: Vercel (United States regions).

Legal bases and your rights. For users in California, the EU/UK and elsewhere, our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

Children. Grammarworld is a general-audience language-reference tool operated through the adult or organization running the AI assistant.

Changes. We will post changes here with a new effective date.

Terms of service

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Grammarworld — Terms of Service

Effective 28 September 2026. These terms govern use of the Grammarworld connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

  1. The Service. Grammarworld returns a grammar-reference overview for 8 world languages (Spanish, French, German, Mandarin Chinese, Arabic, Russian, Japanese, Swahili), from a hand-curated reference bundled with the server. It is accessed through an AI assistant or directly over MCP or HTTP.
  2. A starting overview, not a comprehensive grammar. Grammarworld covers a small number of genuinely distinctive core features per language, chosen for breadth of illustration, not exhaustive coverage. It is not a textbook, a certified curriculum, or a substitute for a dedicated language course or a fluent speaker's guidance, and it does not cover every rule, exception, or regional variation of any language. English and the Hindi language family are intentionally out of scope, since they are covered by other connectors in this catalog.
  3. Acceptable use. Automated use within the published rate limits is welcome.
  4. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time.
  5. Data. Our Privacy Policy describes what we process. In short: your input is answered on our server and nothing is stored.
  6. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
  7. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service. Our total liability is limited to US $100.
  8. Governing law. California law; venue in San Mateo County, California.
  9. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/grammarworld

Support

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Grammarworld support

Email agent@connectorbay.com. We answer within two business days.

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Grammarworld never asks for them.

Get Grammarworld

Free · No sign-in · Read-only

Streamable HTTP, stateless, no authentication. Paste the endpoint into any MCP-capable agent.

https://grammarworld.connectorbay.com/mcp
{
  "mcpServers": {
    "grammarworld": {
      "type": "http",
      "url": "https://grammarworld.connectorbay.com/mcp"
    }
  }
}