UFCalendar Fight API

api.ufcalendar.com · visit site →

Probe-verified · tier 2 · checked 26 Sep 2026

REST API providing MMA and bare-knuckle boxing fight data including events, full fight cards, results, per-round stats, fighter careers, official rankings, judges' scorecards, power index ratings, AI win probabilities, and broadcast rights for UFC, PFL, OKTAGON, BKFC, and RIZIN.

sportssports

What we tested

Probed live on 26 Sep 2026 against rubric v1.2. 1 of 5 checks passed. 2 unknown.

PROBE-VERIFIEDtier 2 of 3

?Markdown negotiationAccept: text/markdown · unknown

?Markdown twin at a predictable URL/page.md · unknown

—llms.txt/llms.txt

✓API catalogRFC 9727

—MCP endpoint answers tools/listinitialize → tools/list, no credentials

—MCP server card

/.well-known/mcp/server-card.json · absent

not scored

—Platform-supplied

not applicable — no MCP endpoint answered

not scored

—Other agent files at well-known paths

agent-skills/index.json · oauth-authorization-server · oauth-protected-resource · http-message-signatures-directory · none found

not scored

Context

711 sites in the index share the category sports. 268 transactional sites share it.

How we grade

Three tiers. Every listing shows which one it has reached, and when. The rubric.

tier 1

Declared

The site says agents are welcome in its robots.txt. A permission, not a capability.

✓

tier 2

Probe-verified

We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.

this site · 26 Sep 2026

tier 3

Behaviourally verified

An agent completed the action end to end — booked, bought, submitted — and it worked.

coming

Own this site?

2 checks did not pass when we last looked: llms.txt, MCP endpoint answers tools/list. Each is a small, specific fix; the rubric says exactly what we look for.

Behavioural verification — an agent completing your key actions end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.

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Record generated from a live database query. Method: about the index.

How we found this site: probe discovery. This site didn’t declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. How we choose what to check, and how to opt out →

Where this sits

More other sports Browse the index How we grade