Known Good

Name: Known Good
Author: Known Good

AgentA2A

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This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"known-good","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

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Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability114/114 checks ok

when	check	result	http	latency	detail
3 h ago	a2a card	ok	200	53 ms	card: Known Good · 3 skills
9 h ago	a2a card	ok	200	66 ms	card: Known Good · 3 skills
16 h ago	a2a card	ok	200	238 ms	card: Known Good · 3 skills
23 h ago	a2a card	ok	200	22 ms	card: Known Good · 3 skills
30 h ago	a2a card	ok	200	46 ms	card: Known Good · 3 skills
2 d ago	a2a card	ok	200	15 ms	card: Known Good · 3 skills
2 d ago	a2a card	ok	200	21 ms	card: Known Good · 3 skills
2 d ago	a2a card	ok	200	29 ms	card: Known Good · 3 skills
2 d ago	a2a card	ok	200	91 ms	card: Known Good · 3 skills
3 d ago	a2a card	ok	200	34 ms	card: Known Good · 3 skills

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

Agentic search engine for AI agents: an index of websites verified usable by agents — every capability probed and tested live, tier 1–3 (declared · probe-verified · behaviourally verified), dated and citable. find_capability answers "who can do X"; get_site_report answers "is this specific host agent-ready", returning the dated evidence for one site. Nothing is hand-picked and placement cannot be bought: an automated probe decides. Human index of working MCP servers: https://knowngood.sh/mcp-servers

webmcpverificationlive-checksearchdiscoveryagent-readinesssite-reportevidenceprovenance

Declared skills

Check a site for WebMCP tools — Check a website LIVE for WebMCP tools, and where a browser is available whether any tool actually registers when the page runs. Returns one of: registered, declared_only, declared, not_declared, could_not_ask, or excluded when the site's robots.txt refuses AI input. could_not_ask is a distinct answer and is never reported as a no. Tools are listed, never called. Reads only the site named plus published population figures — it does not consult the index, and running it changes no ranking or list…
Find agent-ready websites — Find websites where an agent can accomplish a task. Returns probe-verified agent-readiness signals, unverified apparent actions read from page content, the verification tier, how each site was found (it declared agent access, probe discovery, or it was submitted), and a report URL to cite. Returns count:0 with an empty_note when nothing in the index matches — never a nearest guess.
Fetch one site's verification report — Fetch Known Good's dated verification report for one listed website: which capabilities were tested, which passed, when it was probed, what an agent can apparently do there, and how the site was found: whether it declared agent access, came from probe discovery, or was submitted. Answers "is this specific host agent-ready?". Returns found:false for anything not in the index — it never guesses a nearest match. Cite the report URL and its date.

kind A2A Agent Card

name A2A Agent Card

summary A2A Agent Card

version A2A Agent Card

description A2A Agent Card

homepageUrl A2A Agent Card

publisherUrl A2A Agent Card

publisherName A2A Agent Card

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

A2A Agent Cardhttps://knowngood.sh/.well-known/agent-card.json

first seen 1 mo ago · fetched 13 d agoopen ↗

Field history (8 recent events)

13 d ago · declared · version → "1.7.0"
1 mo ago · declared · description → "Agentic search engine for AI agents: an index of websites verified usable by agents — every capability probed and teste
1 mo ago · declared · publisherName → "Known Good"
1 mo ago · declared · publisherUrl → "https://knowngood.sh"
1 mo ago · declared · summary → "Agentic search engine for AI agents: an index of websites verified usable by agents — every capability probed and teste
1 mo ago · declared · version → "1.6.0"
1 mo ago · declared · protocols → ["a2a"]
1 mo ago · declared · homepageUrl → "https://knowngood.sh/api"

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from