MCP server

Bernstein

io.github.sipyourdrink-ltd/bernstein-mcp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Verifies Bernstein run receipts and hash chains; lists the shipped presets and adapters. Read-only.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

11

Token cost

About 2,496 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http bernstein-mcp https://mcp.bernstein.run/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.bernstein-mcp]
url = "https://mcp.bernstein.run/mcp"

Gemini CLI

{"mcpServers":{"bernstein-mcp":{"httpUrl":"https://mcp.bernstein.run/mcp"}}}

Cursor

{"mcpServers":{"bernstein-mcp":{"url":"https://mcp.bernstein.run/mcp"}}}

VS Code

{"servers":{"bernstein-mcp":{"type":"http","url":"https://mcp.bernstein.run/mcp"}}}

Antigravity

agy mcp add bernstein-mcp https://mcp.bernstein.run/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"bernstein-mcp","server_url":"https://mcp.bernstein.run/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"bernstein-mcp","server_url":"https://mcp.bernstein.run/mcp"}

Tools

• explain_receipt ~179 tokens
  Verify a run receipt and narrate the result in plain language: what the run recorded, which chains recomputed, where the first divergence is, and what an auditor can and cannot conclude without the producing install's keys.
• explain_trace_mapping ~194 tokens
  How a bernstein run maps onto a TRACE v0.2 Trust Record: one row per claim with the journal field it is sourced from and the rule that derives it. Pass a run receipt to fill in the rows its embedded journal can answer (subject, iat, model, data_class, policy digest, tool transcript) alongside the re
• get_preset ~88 tokens
  Every field of one compliance preset as bernstein v3.19.2 resolves it.
• list_adapters ~60 tokens
  The agent adapters bundled with bernstein v3.19.2: adapter name, the binary it drives, the module that implements it.
• list_presets ~50 tokens
  The compliance presets bernstein v3.19.2 ships, with the switches each one turns on.
• server_info ~42 tokens
  Identity, version, and request limits for this MCP server.
• verify_agent_manifest ~330 tokens
  Agent Manifest v0.2 conformance checks on one manifest, stateless, no account: schema (vendored agent-manifest.schema.json), profile context, version, canonicalization, COSE envelope signature (Ed25519, key identified by kid in the protected header; ML-DSA-65 is reported unverifiable). Optionally ch
• verify_chain ~284 tokens
  Walk bernstein chain rows and recompute every link: journal rows (event_hash), lineage spine entries (entry_hash) or audit events (prev_hmac linkage). The row kind is detected from the fields, or pass `kind` explicitly. Reports the first divergent index. Pass `entries` as the file text (a JSON array
• verify_delegation_chain ~746 tokens
  TRACE v0.2 delegation-chain conformance, stateless, no account: index every Trust Record by the RFC 8785 digest of its complete form, start at the leaf, follow delegation.parent_record_hash to the root, and check each hop's signature, the root key against `trusted_root_keys`, the depth bound, the li
• verify_receipt ~257 tokens
  Recompute every hash chain a bernstein run receipt embeds (journal, lineage spine, optional audit range), rebuild the signed subject from the recomputed heads, and check the Ed25519 signature with the key the receipt carries. Needs no secret and reads nothing but the receipt. Returns the verdict, th
• verify_trace_record ~266 tokens
  TRACE v0.2 conformance checks on one Trust Record, stateless, no account: schema (vendored trace-claim.json), profile, subject URI, software-only runtime rule, policy digest, public-only confirmation key, the embedded signature (EdDSA, ES256 or ES384 with the key in cnf.jwk), appraisal, delegation l

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