Little Big Brain bronze

littlebigbrain.com

“Answers questions from the selected Little Big Brain stack. Supply X-LBB-Stack with the slug of a stack owned by the authorized user's organization.

https://littlebigbrain.com/.well-known/agent-card.json its card

Checked 6d 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 Google Trust Services domain-validated
Valid until 20 Jan 2027 as of our check on 8 Nov 2026.

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 (1)

littlebigbrain.com.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 8 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 5 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy: Search: yesAI input: yesAI training: yes

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 — “little big brain” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 8 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: 6d 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 littlebigbrain.com controls every word below.

Ask the graph

Answer a question using the selected stack's graph.

knowledge-graphquestion-answering

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.

Little Big Brain MCP server

mcp-server-card

Connect an MCP client to an existing Little Big Brain stack over Streamable HTTP with OAuth. Inspect graph vocabulary, query with SPARQL, compare snapshots and search the user's data. Requires sign-in and the user's stack slug.

https://littlebigbrain.com/mcp-server-card.json

Little Big Brain graph and search API

json

OpenAPI 3.1 schema for the authenticated stack API: RDF ingestion, SPARQL queries, semantic search, ontology, schema and graph operations. Use the complete stack endpoint copied from the console and an authorized API key.

https://littlebigbrain.com/openapi/data-plane.json

Little Big Brain developer integrations API

json

OpenAPI 3.1 schema for developers connecting customers' data sources to one graph per customer in a developer stack. Create hosted authorization sessions, inspect connections and manage synchronization from a backend using a stack API key.

https://littlebigbrain.com/openapi/integrations.json

Connect to Little Big Brain MCP

text/markdown

Instructions for configuring and diagnosing an MCP connection to an existing Little Big Brain stack, using hosted OAuth or local stdio.

https://littlebigbrain.com/.well-known/agent-skills/lbb-connect-mcp/SKILL.md

Query a Little Big Brain graph

text/markdown

Instructions for answering graph questions through an authenticated MCP connection using actual vocabulary, entity IRIs, bounded SPARQL queries and published commit evidence.

https://littlebigbrain.com/.well-known/agent-skills/lbb-query-graph/SKILL.md

Technical agent card

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

Provider: little big brain UG (haftungsbeschränkt) — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Auth schemes: bearer
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: extendedAgentCard pushNotifications streaming
Agent card: https://littlebigbrain.com/.well-known/agent-card.json

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