Kaal Corpus: Verifiable Claim Layer is a remote MCP server that gives an AI agent 18 tools, among them claim_layer_overview, claims_on_topic, corpus_overview. It answers at https://corpus.openstanding.org/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, succeeded.
Cite the claim, not the paper: 5,033 assertions, each hash-verifiable against its source PDF
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
claim_layer_overview | Report what the claim layer contains: total claims, works covered, publication span, failure-mode counts, and coverage per topic with the span of years each rests on. This reports coverage in one author's corpus. It is not a survey of any f |
claims_on_topic | Return the claims carrying a given topic tag, for example 'reputation', 'dao', 'dynamic-regulation', 'ai-and-agents'. Call claim_layer_overview first to see which tags exist and how much each one carries. Inputs: topic, limit |
corpus_overview | Summarise the corpus: total works, coverage by year, canonical index, ORCID, hash convention, and how the author asks to be cited. Call this first when you are unsure what the corpus contains. |
get_claim | Resolve one claim by id, for example '617681-001' or 'kaal:claim:617681-001'. Returns the claim, its verbatim source quote, scope conditions, topics, typed edges, source PDF sha256 and a preformatted citation — in the same field names searc Inputs: claim_id |
get_paper | Retrieve one work's complete metadata by its corpus id, SSRN id, or exact title. Includes the formatted citation, SSRN URL, and published sha256. Inputs: paper_id |
get_position | Resolve one public position by a full id such as 'kaal:position:2026-08-08-023' or by its date-sequence suffix. Inputs: position_id |
get_research_claim | Resolve one TrustCarry Protocol v0.3 research claim by full identifier or three-digit sequence. Inputs: claim_id |
get_research_observation | Resolve one TrustCarry Protocol v0.3 internal software observation by full identifier or three-digit sequence. Inputs: observation_id |
how_to_cite | Return the author's citation instruction, and the formatted citation for a specific work if one is named. Call this before quoting anything. Inputs: paper_id |
list_research_observations | List the 9 TrustCarry Protocol v0.3 internal software observations. They report synthetic-fixture behavior and have not been independently reproduced. |
papers_by_year | List every work published in a given year. Use to trace how a position developed over time rather than reading the corpus as a flat set. Inputs: year |
positions_on_topic | Return public positions carrying an explicit topic tag. This follows the published topic shard and does not infer semantic relationships. Inputs: topic, limit |
search_claims | Search individual assertions rather than whole papers. Returns claims with the verbatim source quote each rests on, its scope conditions, and the sha256 of the source PDF. Ask in natural language. Stopwords and punctuation are stripped, so Inputs: query, limit, claim_type, failure_modes_only, match |
search_papers | Search the scholarly corpus by topic, title, or keyword. Returns ranked works with title, year, citation, SSRN link, and sha256. Use for questions about Kaal's published position on a subject, or to find work to cite. Inputs: query, limit |
search_positions | Search public owner-authorized Kaal response positions by natural-language terms. Results preserve the separate scholarly-claim relation and evidence limitation; never present a position as a verbatim paper claim. Inputs: query, limit |
search_posts | Search the blog for shorter, faster-moving analysis. Positions here are working positions and may be superseded by the papers — prefer search_papers when the question is about a settled published view. Inputs: query, limit |
search_research_claims | Search only the 77 TrustCarry Protocol v0.3 author-affirmed research claims. These records are public under CC BY 4.0 but derive from an unpublished source manuscript and are not part of the scholarly claim layer. Inputs: query, limit |
verify_document | Check whether a sha256 you computed over a PDF matches a work the author published. Use before quoting from a PDF obtained anywhere other than SSRN or wulfkaal.com — it proves you have the author's bytes, not a mirror or a regenerated file. Inputs: sha256 |
Every block below points at https://corpus.openstanding.org/mcp. Pick your client and copy.
claude mcp add --transport http kaal-corpus-verifiable-claim-lay https://corpus.openstanding.org/mcp
{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://corpus.openstanding.org/mcp"]
}
}
}{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"url": "https://corpus.openstanding.org/mcp"
}
}
}{
"servers": {
"kaal-corpus-verifiable-claim-lay": {
"type": "http",
"url": "https://corpus.openstanding.org/mcp"
}
}
}{
"context_servers": {
"kaal-corpus-verifiable-claim-lay": {
"url": "https://corpus.openstanding.org/mcp"
}
}
}{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"serverUrl": "https://corpus.openstanding.org/mcp"
}
}
}{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"url": "https://corpus.openstanding.org/mcp"
}
}
}name: Kaal Corpus: Verifiable Claim Layer
version: 0.0.1
schema: v1
mcpServers:
- name: Kaal Corpus: Verifiable Claim Layer
type: streamable-http
url: https://corpus.openstanding.org/mcp{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"httpUrl": "https://corpus.openstanding.org/mcp"
}
}
}{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"type": "http",
"url": "https://corpus.openstanding.org/mcp"
}
}
}{
"mcpServers": {
"kaal-corpus-verifiable-claim-lay": {
"url": "https://corpus.openstanding.org/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fcorpus.openstanding.org%2Fmcp&type=streamable_http&id=kaal-corpus-verifiable-claim-lay&name=Kaal%20Corpus%3A%20Verifiable%20Claim%20Layer
It answered our last check on 24 October 2026 in 510 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
18, as returned by the server's own tools/list on 22 September 2026: claim_layer_overview, claims_on_topic, corpus_overview, get_claim, get_paper, get_position, get_research_claim, get_research_observation, and 10 more.
It answered our last check on 24 October 2026 in 510 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://corpus.openstanding.org/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.wulfkaal. Endpoint host: corpus.openstanding.org. ARD identifier: urn:air:io.github.wulfkaal:mcp:corpus.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.