agenttru.st

GripCentral bronze

www.gripcentral.com

“GripCentral's grip sport agent: the wiki (training, technique, equipment), the contest calendar, records and results from GSI, IronMind, Armlifting USA and organisers, and benchmark feats. Read-only and deterministic (no language model): send a data part {"skill": "<skill id>", "arguments": {...}} to run a skill directly, or plain text, which is routed by fixed rules: a gripcentral.com wiki or feats link reads that page; "list wiki articles" / "list feats" list them; a feat name with who/how many reads that feat's roll; record, ranking or athlete questions go to query_records; event words or a contest's name go to find_events; anything else searches the wiki. Every reply is a completed task with a Markdown text part and a JSON data part, and credits each record's owner.

https://www.gripcentral.com/.well-known/agent-card.json its card
Checked 5d ago extendedAgentCard, pushNotifications, streaming

we checked this    the operator says this

Community rating 0 0 up · 0 down — sign in to vote

Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate
Issued by Google Trust Services domain-validated
Valid until 19 Dec 2026 as of our check on 9 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.
Control of the hostname was checked; nothing about who operates it.
Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.
Names on this certificate (3)

gripcentral.com, www.gripcentral.com, *.www.gripcentral.com.

Connection
TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means
DANE / TLSA
Not verified (TLSA query returned RCodeNameError)
Discovery
Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 2 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy
Search: yesAI input: yesAI training: no
What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents
Publishes /llms.txt — “GripCentral” a curated map of the site's content for language models
Publishes a Web Bot Auth key directory (1 key, Ed25519) — the operator publishes keys so their agent's signed requests can be verified. agenttru.st recorded that the directory exists; it has not verified a signature.
Fetched from this host during verification. Neither document is how this agent was discovered.
First seen
9 Nov 2026
View verification details
Assurance
bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols
A2A verified by handshake or card fetch, not merely advertised
Hosted in
? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked
5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of www.gripcentral.com controls every word below.

Search the GripCentral wiki

Search GripCentral's grip sport wiki (training, technique, equipment such as grippers and pinch blocks, competition rules, history, vendors). Returns the best-matching passages with their article title, section and URL. Use get_wiki_article to read a whole article. Call it directly with a data part {"skill":"search_wiki","arguments":{...}}; arguments: query: string (required), limit: integer 1-10. As plain text: Any text message that isn't routed elsewhere goes here, with the text as the query. Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

wikitrainingtechniqueequipmentgrip sportgripcentralread-only
Examples it gives
  • How do I train for the Captains of Crush No. 3?
  • {"skill":"search_wiki","arguments":{"query":"thick bar training","limit":4}}

Read a GripCentral wiki article

Read one GripCentral wiki article by slug (the last part of its URL, e.g. "captains-of-crush" for https://gripcentral.com/wiki/captains-of-crush). Returns the article's text section by section as Markdown. Find slugs with search_wiki or list_wiki_articles. Call it directly with a data part {"skill":"get_wiki_article","arguments":{...}}; arguments: slug: string (required). As plain text: Text containing a gripcentral.com/wiki/<slug> link, or "read <article title>". Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

wikiarticlegripcentralread-only
Examples it gives
  • read https://gripcentral.com/wiki/hand-grippers
  • {"skill":"get_wiki_article","arguments":{"slug":"hand-grippers"}}

List GripCentral wiki articles

List every GripCentral wiki article with its slug, URL, one-line summary and section headings. Call it directly with a data part {"skill":"list_wiki_articles","arguments":{...}}; arguments: none. As plain text: Text such as "list wiki articles". Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

wikiindexgripcentralread-only
Examples it gives
  • list wiki articles
  • {"skill":"list_wiki_articles","arguments":{}}

Find grip sport events

Find grip sport contests on GripCentral's calendar (GSI, Armlifting USA and other organisers): by name ("King Kong", "Napalm"), recurring contest, or place (city, state/province, country). Upcoming events by default, soonest first; set upcoming=false to search past events, newest first. With no query, lists the next events. Call it directly with a data part {"skill":"find_events","arguments":{...}}; arguments: query: string, upcoming: boolean, limit: integer 1-20. As plain text: Text with event words (event, contest, competition, meet, calendar, upcoming, when is ...) or an upcoming contest's name; add "past" or "previous" for past events. Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

eventscontestscalendargripcentralread-only
Examples it gives
  • upcoming grip contests in Ohio
  • {"skill":"find_events","arguments":{"query":"King Kong","upcoming":true,"limit":5}}

Query grip sport records

Ask about grip sport records and contest results in plain English, answered from every record source on GripCentral (Grip Sport International, Armlifting USA, IronMind's Captains of Crush certifications, GripBoard feats, organiser-posted results). Examples: "top 5 men 120k+ on the wrist wrench", "Rolling Thunder record", "women's Saxon bar records", "what has Joe Larson lifted". Returns Markdown with ranked rows, gripcentral.com record and athlete page links, and each owner's attribution. Each owner's list is kept separate: rules and weight classes differ. Call it directly with a data part {"skill":"query_records","arguments":{...}}; arguments: question: string (required). As plain text: Text that asks about records, rankings, top lifts or an athlete by name. Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

recordsresultsrankingsathletesgripcentralread-only
Examples it gives
  • top 5 men on the Rolling Thunder
  • {"skill":"query_records","arguments":{"question":"women's Saxon bar records"}}

List grip feats

List the benchmark grip feats GripCentral tracks (Captains of Crush No. 3, 3.5 and 4, Rolling Thunder, Inch dumbbell and others) with how each is judged, its certifying body, and how many people in the records have done it. Call it directly with a data part {"skill":"list_feats","arguments":{...}}; arguments: none. As plain text: Text such as "list feats" or "which feats are tracked". Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

featscertificationsgripcentralread-only
Examples it gives
  • list feats
  • {"skill":"list_feats","arguments":{}}

Who has done a grip feat

Everyone in GripCentral's records who has done one benchmark feat (e.g. "captains-of-crush-no-3"), earliest first: name, athlete page, country, best qualifying lift, date and sources. For feats with a certifying body (IronMind), certified people are listed apart from uncertified claims. Find slugs with list_feats. Call it directly with a data part {"skill":"get_feat","arguments":{...}}; arguments: slug: string (required), limit: integer 1-200. As plain text: Text naming a feat (e.g. "who has closed the Captains of Crush No. 3", "inch dumbbell") or a gripcentral.com/feats/<slug> link. Replies are a completed task whose artifact holds a Markdown text part and a JSON data part with the structured result.

featscertificationsathletesgripcentralread-only
Examples it gives
  • who has closed the Captains of Crush No. 3.5
  • {"skill":"get_feat","arguments":{"slug":"captains-of-crush-no-3","limit":20}}

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

GripCentral MCP server

mcp-server-card

Read-only MCP server: grip sport wiki, events, records and feats.

https://gripcentral.com/mcp/server-card

GripCentral A2A agent

a2a-agent-card

Read-only, deterministic A2A agent backed by the same tools as the MCP server.

https://gripcentral.com/.well-known/agent-card.json

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider
GripCentral — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
1.0.0
Card completeness
complete all eight fields required by a2a.proto v1.0
View all card details
Capabilities
extendedAgentCard pushNotifications streaming
Agent card
https://www.gripcentral.com/.well-known/agent-card.json

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