Skip to content
verify mcp Beta VerifyMCP is currently in beta. If you notice any issues, get in touch and we’ll put it right.

Blackbook Protocol Advisor

REMOTE · THEBLACKBOOK.PRO · SCANNED OCT 1

Purchaser-gated MCP for Vault, HMRC TRS, 95/5 equity, and Companies House PSC.

Available components

+2 this week 82 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability83
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 4571 tokens (~147/item across 31 items; 25 tools + 6 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 25 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 27 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the Blackbook Protocol Advisor MCP server?

Blackbook Protocol Advisor is a hosted endpoint at https://theblackbook.pro/, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · theblackbook.pro

# add to Claude Code
claude mcp add --transport http koynlabs-blackbook-advisor 'https://theblackbook.pro/'
// .cursor/mcp.json
{
  "mcpServers": {
    "koynlabs-blackbook-advisor": {
      "url": "https://theblackbook.pro/"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "koynlabs-blackbook-advisor": {
      "type": "http",
      "url": "https://theblackbook.pro/"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.koynlabs-blackbook-advisor]
url = "https://theblackbook.pro/"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "koynlabs-blackbook-advisor": {
      "type": "remote",
      "url": "https://theblackbook.pro/",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add koynlabs-blackbook-advisor --url 'https://theblackbook.pro/' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  koynlabs-blackbook-advisor:
    url: "https://theblackbook.pro/"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "koynlabs-blackbook-advisor": {
      "Transport": "http",
      "Url": "https://theblackbook.pro/"
    }
  }
}
# add to Vellum
assistant mcp add koynlabs-blackbook-advisor -t streamable-http -u 'https://theblackbook.pro/'
// mcp.json
{
  "mcpServers": {
    "koynlabs-blackbook-advisor": {
      "type": "http",
      "url": "https://theblackbook.pro/"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 28 Sept 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 27 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 25 Sept 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 23 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 21 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

  • 18 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

  • 16 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

  • 14 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 1 Oct 2026 · Probed https://theblackbook.pro

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=theblackbook.pro CN=YR2,O=Let's Encrypt,C=US 4 Aug 2026 2 Nov 2026 RSA 2048 SHA256-RSA 694999d08eb2ff10321394d9327a014ae16
SANs: theblackbook.pro
CN=YR2,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA 4ebd24947e24d394802d84a52fd5b319
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of theblackbook.pro. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
pro. present 42154 8 Verified
theblackbook.pro. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=63072000
www-authenticate Bearer FAKESECRET_g3h4i5j6k7l8m9n0o1p2="https://theblackbook.pro/.well-known/oauth-protected-resource", scope="mcp:tools"

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://theblackbook.pro Verified 200
http (plaintext) http://theblackbook.pro HTTPS enforced 308 https://theblackbook.pro/
MCP tools · 25 exposed · ~2,256 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
confirm_and_submit ~114

Submit the current portal form only after the human provides a valid one-time confirmationToken from prepare_submit_confirmation. This can file on a government portal.

NameTypeReqDescription
confirmationTokenstringyesOne-time token the Owner typed from prepare_submit_confirmation. Example: 7K2Q9M
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

draft_form_answers ~78

Draft preparation notes for TRS, IHT100, IHT400, and related professional-review questions from a completed intake. Label as a Protocol guide for solicitor execution.

NameTypeReqDescription
formFamilystring–Form family to draft against. Example: TRS
intakeobjectyesStructured Owner facts for Protocol coaching and portal field mapping
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

end_browser_session ~82

Tear down the assisted browser session. No credentials are persisted. Safe to call more than once for the same id after expiry.

NameTypeReqDescription
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

explain_current_screen ~82

Summarise the current portal page: URL, text excerpt, fillable fields, Protocol hint, signedInLikely.

NameTypeReqDescription
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

fill_fields ~114

Fill non-secret form fields (label/placeholder/name). Never passwords, OTPs, or Companies House auth codes.

NameTypeReqDescription
fieldsobjectyesMap of visible field label, placeholder, or name to a non-secret value. Example: {"Trust name":"Example Family Settlement 2026"}
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

generate_review_bundle ~60

Generate a cited professional-review bundle from a completed intake for the Owner to take to a solicitor or CTA.

NameTypeReqDescription
formatstring–Bundle format. Example: markdown
intakeobjectyesStructured Owner facts for Protocol coaching and portal field mapping
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

get_companies_house_guidance ~55

Retrieve approved Companies House / PSC / WebFiling guidance. PSC filings name individuals (trustees), never the Trust itself.

NameTypeReqDescription
topicstringyesGuidance topic. Example: psc or webfiling
NameTypeReqDescription
guidanceobjectyesApproved GOV.UK title, URL, and summary
topicstringyesTopic that was requested

No examples provided.

get_hmrc_guidance ~78

Retrieve approved GOV.UK/HMRC trust and inheritance-tax guidance by topic. Returns a title, official URL, and short summary. Not a live scrape of GOV.UK.

NameTypeReqDescription
jurisdictionstring–Jurisdiction filter. Example: UK
topicstringyesGuidance topic. Example: trs or inheritance tax
NameTypeReqDescription
guidanceobjectyesApproved GOV.UK title, URL, and summary
jurisdictionstringyesJurisdiction used
topicstringyesTopic that was requested

No examples provided.

get_legal_boundary ~49

Return the mandatory educational / non-advice boundary statement. Call when the Owner asks if this is legal advice.

NameTypeReqDescription
audiencestring–Who will read the boundary line. Example: owner
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement

No examples provided.

get_module_playbook ~91

REQUIRED when coaching setup. Return the ordered Protocol checklist for a module. For 95/5 / share transfer into the Trust use equity_95_5 (not a freestyle solicitor checklist). Modules: vault, trs, equity_95_5, psc, banking, ip, philosophy, legacy, property.

NameTypeReqDescription
modulestringyesProtocol module id. Example: equity_95_5
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
idstringyesModule id that was requested
stepsarrayyesOrdered coaching steps
summarystringyesOne-paragraph module purpose
titlestringyesHuman title for the module

No examples provided.

get_self_serve_portal ~76

Self-serve path: return the official portal URL plus Protocol checklist for the Owner’s own browser. Present portalUrl as a clickable markdown link (MCP cannot launch local browsers). Do not start Browserbase.

NameTypeReqDescription
portalIdstringyesAllowlisted official portal. Example: trs for HMRC Trust Registration Service
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
modestringyesAlways self_serve
openInstructionstringyesHow the client should present portalUrl
portalIdstringyesPortal that was requested
portalUrlstringyesOfficial HTTPS URL to present as a markdown link

No examples provided.

get_skill ~79

Load a Protocol workflow skill as markdown. Names: establish-vault-trust, register-trust-trs, implement-95-5-equity-split, update-psc-companies-house, run-portal-copilot.

NameTypeReqDescription
namestringyesSkill name from list_skills. Example: implement-95-5-equity-split
NameTypeReqDescription
descriptionstringyesSkill summary from frontmatter
markdownstringyesFull SKILL.md contents
namestringyesSkill name
uristringyesskill:// URI for this workflow

No examples provided.

list_fillable_fields ~84

Inventory visible non-secret form controls (label/name/type) on the current portal page. Use to align prepare_portal_fill keys.

NameTypeReqDescription
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

list_implementation_modes ~60

List Owner choices: self_serve (own browser + guidance) vs assisted (Browserbase live view + optional fill). Ask before starting co-pilot.

NameTypeReqDescription
preferredstring–Optional Owner preference if already stated. Example: self_serve
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
defaultAskstringyesQuestion to ask the Owner before choosing a path
modesarrayyesself_serve and assisted options with recommended tools

No examples provided.

list_modules ~36

List available Protocol advisor modules in coaching order.

NameTypeReqDescription
querystring–Optional text to filter module id or title. Example: vault
NameTypeReqDescription
modulesarrayyesProtocol modules with id and title

No examples provided.

list_risk_flags ~55

Return legal, tax, and practical red flags detected from customer facts (settlor-as-beneficiary, lender consent, offshore, time pressure).

NameTypeReqDescription
intakeobjectyesStructured Owner facts for Protocol coaching and portal field mapping
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
flagsarrayyesDetected flags with code, label, and detail

No examples provided.

list_skills ~71

List Protocol Architect workflow skills (Vault, TRS, 95/5, PSC, portal co-pilot). Call when the Owner asks how to set something up; then get_skill for the matching workflow.

NameTypeReqDescription
querystring–Optional text to filter skill names or descriptions. Example: psc
NameTypeReqDescription
skillsarrayyesDiscoverable skills with name, description, and skill:// URI

No examples provided.

open_portal ~106

Navigate the assisted session to an allowlisted portal: trs, trs_manage, companies_house_webfiling, or companies_house_psc.

NameTypeReqDescription
portalIdstringyesAllowlisted official portal. Example: trs for HMRC Trust Registration Service
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

prepare_portal_fill ~98

Map intake facts to a fill_fields payload for TRS or Companies House PSC. Secrets (auth code) are listed but never filled. Call after Owner login; align labels with list_fillable_fields. Never maps the Trust as a PSC organisation.

NameTypeReqDescription
formFamilystring–Portal family to map. Example: COMPANIES_HOUSE_PSC
intakeobjectyesStructured Owner facts for Protocol coaching and portal field mapping
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

prepare_submit_confirmation ~83

Create a one-time confirmation token required before confirm_and_submit. Show the token to the human Owner; do not submit without it.

NameTypeReqDescription
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

request_user_action ~106

Pause for Owner login, CAPTCHA, 2FA, or review in the Browserbase live view. Never ask the Owner to paste passwords into chat.

NameTypeReqDescription
actionstringyesWhy the Owner must use the live view. Example: login
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

run_trust_intake ~294

Validate a structured trust setup intake and return missing facts, Protocol warnings, and next modules. Call before drafting forms or opening portals.

NameTypeReqDescription
assetValuestring–Optional indicative value of those assets. Example: 100000 GBP
assetsstringyesAssets intended for the Trust. Example: 95 ordinary shares in Example Ltd
companyNamestring–Engine (limited company) name. Example: Example Ltd
companyNumberstring–Companies House number. Example: 12345678
deadlinesstring–Known filing or lender deadlines. Example: TRS within 90 days of the deed
existingArrangementsstring–Existing companies, trusts, or wills that affect setup. Example: Sole shareholder of Example Ltd
jurisdictionstringyesGoverning law of the trust. Example: England and Wales
objectivestringyesWhy the Owner is setting up the Vault. Example: Family wealth planning
partiesstringyesTrustees and beneficiaries in Protocol terms. Example: Alex Example (Lead Trustee); Class: children
questionsstring–Owner questions the Architect should address. Example: Can the Trust be named as PSC?
settlorstringyesPerson settling the Trust. Example: Alex Example
trustNamestring–Vault / settlement name. Example: Example Family Settlement 2026
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
missingarrayyesRequired fields that are still blank
nextModulesarrayyesSuggested next Protocol modules
okbooleanyesTrue when required intake fields are present
warningsarrayyesProtocol cautions such as settlor-as-beneficiary or 90/5

No examples provided.

search_book ~91

REQUIRED before substantive Protocol answers. Search approved Blackbook Protocol passages and return cited excerpts. Prefer Protocol vocabulary from hits over generic UK legal advice. Returns ranked results plus the educational boundary.

NameTypeReqDescription
limitinteger–Maximum number of cited excerpts to return. Default 5. Example: 5
querystringyesSearch text using Protocol terms. Example: 95/5 equity split Vault PSC trustees
NameTypeReqDescription
boundarystringyesMandatory educational / non-advice boundary statement
resultsarrayyesRanked corpus hits with citation and excerpt

No examples provided.

start_browser_session ~78

ASSISTED mode only. Start a fresh ephemeral Browserbase (or mock) co-pilot session. Returns liveViewUrl — no purchaser email. If Owner prefers their own browser, use get_self_serve_portal instead.

NameTypeReqDescription
reasonstring–Why assisted mode is needed. Example: Owner asked for live TRS fill help
NameTypeReqDescription
idstringyesSession id for later portal tools
liveViewUrlstringyesURL the Owner opens to see and control the remote browser
modestringyesmock or browserbase
portalAuthenticatedbooleanyesFalse on a fresh session until Owner signs in via live view

No examples provided.

wait_for_user_ready ~136

After request_user_action(login|2fa), poll until the page leaves the sign-in surface (or timeout). Then continue fill.

NameTypeReqDescription
pollMsinteger–Polling interval in milliseconds. Default 3000. Example: 3000
sessionIdstringyesEphemeral co-pilot session id returned by start_browser_session. Example: 8f3c2a1b-4d5e-6789-abcd-ef0123456789
timeoutMsinteger–How long to wait for sign-in in milliseconds. Default 90000. Example: 90000
NameTypeReqDescription
boundarystringyesEducational / non-advice boundary when the tool includes one

No examples provided.

Common questions

What is the Blackbook Protocol Advisor MCP server?

Blackbook Protocol Advisor is an MCP server listed in the public MCP registry as io.github.koynlabs/blackbook-advisor. Purchaser-gated MCP for Vault, HMRC TRS, 95/5 equity, and Companies House PSC. This page covers its hosted endpoint (https://theblackbook.pro).

Is the Blackbook Protocol Advisor MCP server safe to use?

Blackbook Protocol Advisor scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Blackbook Protocol Advisor MCP server expose?

Blackbook Protocol Advisor exposes 25 tools: search_book, get_module_playbook, list_skills, get_skill, list_modules, and 20 more. Their descriptions and schemas cost roughly 2,256 tokens of context every time the server is loaded.

Does the Blackbook Protocol Advisor MCP server require authentication?

No. We connected to Blackbook Protocol Advisor without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the Blackbook Protocol Advisor MCP server still maintained?

Blackbook Protocol Advisor is still listed as active in the MCP registry. We last reached this channel on 1 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.