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Fitness Glossary

Strength, cardio and gym-culture terms — with a real numeric RPE/RIR exertion scale

Unify Dynamics LLC

Documentation
Tools7read-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.

What is progressive overload?
Tools called
term_lookup
Anything about interval training?
Tools called
search_terms
List all the cardio terms
Tools called
glossary_by_category
What does RPE 8 mean?
Tools called
rpe_reference
What RIR is RPE 8?
Tools called
rpe_to_rir
What RPE is 2 reps in reserve?
Tools called
rir_to_rpe
Is soreness required for a workout to have worked?
Tools called
common_misconceptions

About

Fitnessglossary is a fully local gym/fitness terminology reference for anyone new to a gym or training program. term_lookup defines any single term with its category; search_terms does keyword search; glossary_by_category browses strength_training, cardio, or gym_culture. Strength-training terms include progressive overload, hypertrophy, one-rep max, supersets, drop sets, tempo, time under tension, compound vs. isolation exercises, periodization and deload weeks. Cardio terms include Zone 2, VO2max, LISS, HIIT, lactate threshold, EPOC and Tabata. Gym-culture terms include DOMS, mind-muscle connection, bro split, bulking/cutting, macros, pump and PR. rpe_reference gives the full 1-10 RPE (Rate of Perceived Exertion) scale with each level's real, documented meaning and its RIR (Reps in Reserve) correspondence; rpe_to_rir and rir_to_rpe convert between the two using the standard coaching formula RIR = 10 - RPE. common_misconceptions corrects frequent mix-ups like treating RPE and RIR as unrelated scales or assuming soreness is required for progress. Keyless; computed locally; nothing stored; general fitness terminology reference, not medical or coaching advice.

Sources: Computed locally / hand-curated (standard strength & conditioning and exercise-science terminology; RPE/RIR numeric scale and correspondence popularized by Mike Tuchscherer's RPE scale, standard across strength-sports coaching); 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

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

OpenAPI
Look up3 tools
  • Term lookupDefines one term from anywhere in the reference — strength training, cardio, or gym culture — with its category.
  • Search termsKeyword search across every term, definition and category in the reference.
  • Glossary by categoryEvery term in one category: strength_training, cardio, or gym_culture.
RPE / RIR3 tools
  • Rpe referenceThe full RPE (Rate of Perceived Exertion) 1-10 scale with each level's real, numeric meaning and its RIR correspondence.
  • Rpe to rirConverts an RPE (Rate of Perceived Exertion) value to RIR (Reps in Reserve): RIR = 10 - RPE, the standard coaching-scale correspondence.
  • Rir to rpeConverts an RIR (Reps in Reserve) value to RPE (Rate of Perceived Exertion): RPE = 10 - RIR, the inverse of rpe_to_rir.
Clarifications1 tools
  • Common misconceptionsFrequent mistaken beliefs in gym/fitness terminology, corrected — RPE vs RIR, DOMS and progress, what 'intensity' actually means, what a pump is,…

Information

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

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Documentation

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What Fitnessglossary is for

The vocabulary a gym newcomer runs into on day one — what a coach means by "RPE 8", what "Zone 2" is, what a "deload week" is for, why everyone jokes about never skipping leg day — explained accurately, not vaguely.

What it does

A hand-curated glossary of 45+ terms across three categories. Strength training: progressive overload, hypertrophy, one-rep max (1RM), supersets, drop sets, tempo, time under tension, compound vs. isolation exercises, periodization, deload weeks, and a real numeric RPE (Rate of Perceived Exertion) and RIR (Reps in Reserve) exertion scale — not just named, but explained with their actual 1-10 / 0-10 numeric meaning and how they convert into each other. Cardio: Zone 2, VO2max, LISS, HIIT, lactate threshold, EPOC (the "afterburn" effect), Tabata, Fartlek. General gym culture: DOMS, mind-muscle connection, bro split, bulking/cutting, macros, pump, PR/PB, spotter. term_lookup defines any single term; search_terms does keyword search; glossary_by_category browses one category. rpe_reference gives the full numeric RPE scale with each level's real meaning; rpe_to_rir and rir_to_rpe convert between the two scales using the standard coaching correspondence (RIR = 10 − RPE). common_misconceptions corrects frequent mix-ups, like treating RPE and RIR as unrelated, or assuming soreness is required for a workout to have worked.

What it is not

Not personalized coaching or a program: it defines and explains terms, it does not assess your own training or tell you what to change. The RPE/RIR correspondence (RIR = 10 − RPE) is a standard coaching convention, not an exact physiological law — actual reps-in-reserve at a given perceived exertion vary by exercise, rep range and individual. General fitness terminology reference, not medical advice.

Privacy policy

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Fitnessglossary — Privacy Policy

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

What Fitnessglossary is. Fitnessglossary is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf for gym/fitness terminology: term lookups, keyword search, category browsing, and an RPE/RIR exertion-scale reference and converter. You interact with your assistant; the assistant sends us only the search words or numeric values needed to answer.

What we receive. The arguments of each tool call (a term or search phrase, a category name, an RPE or RIR value), 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 computed on our server and nothing is stored. The glossary is a bundled reference file; lookups are simple text matching and the RPE/RIR conversion is a formula. No request is forwarded to any third party. What you send is used for that one answer and is not recorded, logged in request bodies or used to train anything.

What we do not receive or store. We do not receive your conversation with the assistant, your name, contacts, medical records or any account credentials. 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. 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. Fitnessglossary is a general-audience service operated by the adult using the assistant.

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

Terms of service

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Fitnessglossary — Terms of Service

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

  1. The Service. Fitnessglossary returns gym/fitness terminology definitions, keyword search, category browsing, and an RPE/RIR exertion-scale reference and converter, from a bundled, hand-curated reference and simple formulas. It is accessed through an AI assistant or directly over MCP or HTTP.
  2. General fitness education, not medical or coaching advice. Definitions reflect standard, widely-documented usage in strength & conditioning and exercise-science practice; the RPE/RIR correspondence is a coaching convention, not an exact physiological measurement. Nothing here is medical, nutritional or personalized training advice; consult a qualified coach or clinician for individual guidance, especially with an injury or a medical condition.
  3. Acceptable use. Do not use the Service to bulk-scrape the reference or to circumvent rate limits. Automated use within the published 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 query 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/fitnessglossary

Support

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Fitness Glossary 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. Fitness Glossary never asks for them.

Get Fitness Glossary

Free · No sign-in · Read-only

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

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