← The evidence ledger
Evidence row 982490
Observed , by sync.mcp_registry/1.
- Kind
- listing
- About
- source_record mcp_registry:io.github.Kromatic-Innovation/krobot
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 26a2f40b8928a52f5740981407719e6ad75122ab4022cd5f41dcb6c19b70b9a8
- Leaf
- 0xee2b1ec10da56a53dd14a7c55327e32a10ed8dd6c1aa5aa428c3464da7e2f411
What was observed
{
"endpoints": [
[
"mcp",
"https://api.kromatic.com/mcp/krobot"
],
[
"web",
"https://kromatic.com/mcp/krobot"
]
],
"name": "io.github.Kromatic-Innovation/krobot",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-10-29T00:30:00.634826Z",
"status": "active",
"statusChangedAt": "2026-10-29T00:30:00.634826Z",
"updatedAt": "2026-10-29T00:30:00.634826Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"_meta": {
"io.modelcontextprotocol.registry/publisher-provided": {
"tools": [
{
"description": "Search Kromatic knowledge base with semantic + keyword retrieval. Returns grounded excerpts with citations.\n\nAvailable resource_types: Program, Module, Download, Tool, Blog Content, Book Section, MCP Server, Skill\nAvailable source_keys: learning_library, tools_and_games, blog_content, real_startup_book\n\nMCP Server and Skill are the AI Resources catalogue categories: ask for them by category rather than as generic links or downloads.\n\nTip: use knowledge_list first to browse available content, then knowledge_retrieve for details.",
"name": "knowledge_retrieve",
"title": "Search Kromatic knowledge"
},
{
"description": "List Kromatic knowledge documents by category. Returns compact metadata (title, URL, resource_type) — no chunk text. Use this to browse what exists before retrieving details.\n\nAvailable resource_types: Program, Module, Download, Tool, Blog Content, Book Section, MCP Server, Skill\nAvailable source_keys: learning_library, tools_and_games, blog_content, real_startup_book\n\nExamples:\n- List all downloads: {\"resource_types\": [\"Download\"]}\n- List all tools: {\"resource_types\": [\"Tool\"]}\n- List the MCP servers: {\"resource_types\": [\"MCP Server\"]}\n- List the packaged skills: {\"resource_types\": [\"Skill\"]}\n- List all programs and modules: {\"resource_types\": [\"Program\", \"Module\"]}\n- Browse learning library: {\"source_keys\": [\"learning_library\"]}",
"name": "knowledge_list",
"title": "List Kromatic knowledge"
},
{
"description": "Get a complete index of ALL public Kromatic knowledge resources, grouped by source and resource type with counts. Returns every resource with title and URL.\n\nUse this FIRST to understand what exists, then knowledge_retrieve for details.\n\nOptional filters: source_keys, resource_types\nAvailable source_keys: learning_library, tools_and_games, blog_content, real_startup_book\n\nExample: {} (empty body = full index)",
"name": "knowledge_index",
"title": "Index Kromatic knowledge"
},
{
"description": "Submit feedback, a feature request, or a bug report to the Kromatic team. An email is sent to the team and a copy is sent to the address you provide. Args: feedback_type ('feedback' | 'feature_request' | 'bug'), message (10-5000 chars), sender_email, optional sender_name.",
"name": "feedback",
"title": "Send feedback to Kromatic"
}
]
}
},
"description": "Kromatic's public MCP server for read-only access to the Kromatic knowledge base.",
"name": "io.github.Kromatic-Innovation/krobot",
"remotes": [
{
"type": "streamable-http",
"url": "https://api.kromatic.com/mcp/krobot"
}
],
"version": "2.0",
"websiteUrl": "https://kromatic.com/mcp/krobot"
}
},
"source": "mcp_registry",
"summary": "Kromatic's public MCP server for read-only access to the Kromatic knowledge base."
}What the leaf hashes
{"body":"26a2f40b8928a52f5740981407719e6ad75122ab4022cd5f41dcb6c19b70b9a8","id":982490,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793236360128591,"prev":null,"subject":"mcp_registry:io.github.Kromatic-Innovation/krobot","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (242798 rows).
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- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1