o-sumo (大相撲アーカイブ) bronze

o-sumo.pages.dev

“Static public archive of 大相撲 (Grand Sumo) banzuke, torikumi, and rikishi data. The Agent Card advertises a JSON-RPC 2.0 endpoint at https://osada.us/a2a (A2A v1.0.0, HTTP+JSON transport). The endpoint implements only the JSON-RPC transport framing — o-sumo has no task state, so every A2A method (message/send, tasks/get, tasks/cancel, ...) returns -32601 Method not found. Agents should fetch the public JSON API at /api/v1/*.json and follow the skills listed below for actual data retrieval.

https://o-sumo.pages.dev/.well-known/agent-card.json its card

Checked 10h ago extendedAgentCard, pushNotifications, streaming

we checked this the operator says this

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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 Let's Encrypt domain-validated
Valid until 21 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.
DANE / TLSA: Not verified
Discovery: Well-known document
AI use policy: Search: yesAI input: noAI 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.
First seen: 4 Sep 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: 10h 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 o-sumo.pages.dev controls every word below.

osumo-content

Fetch official 大相撲 banzuke, torikumi, and rikishi data from the public o-sumo JSON API (https://osada.us/api/v1/*.json).

sumobanzuketorikumirikishijson-api

Examples it gives

https://osada.us/api/v1/banzuke.json の updatedAt を取得して差分更新を判断する
https://osada.us/api/v1/torikumi.json から 202607 場所の 15 日分の取組結果を取得する
https://osada.us/api/v1/rikishi.json から力士の ID と四股名一覧を取得する

osumo-discovery

Locate the right page on https://osada.us/ for a given basho (YYYYMM), torikumi day (YYYYMMDD), rikishi (id or shikona), kimarite, or analytics view.

sumosite-mapurl-resolutionnavigation

Examples it gives

2026 年 7 月場所の番付ページの URL を組み立てる
照ノ富士のプロフィールページ (/rikishi/{id}/) を rikishi.json の ID から解決する
/sitemap.xml と /robots.txt を取得してクロール可能なページ一覧を作る

Technical agent card

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

Provider: o-sumo — 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://o-sumo.pages.dev/.well-known/agent-card.json

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