MCP servers › com.fastcac › cac
MCP server · registry snapshot 2026-11-04 · last tested 2026-11-04
cac MCP server
Registry name com.fastcac/cac
FastCAC — the publisher's title
by fastcac.com · domain (the registry's namespace rule)Website ↗
Register a Nigerian business with CAC: name checks, fees, register search, TIN. Sign in when needed. — the publisher's description
Summary
com.fastcac/cac is a remote MCP server listed in the official MCP registry at version 1.0.2, under the namespace of the domain fastcac.com. On 2026-11-04 ProtocolProbe connected to it in read-only mode and read its inventory: 46 tools, 0 resources and 0 prompts.
Record checks
1 of 2 record checks met · 7 do not apply
- met: Registry entry is active and says how to run it
- not met: Source repository link opens
- not applicable: Repository is not archived
- not applicable: Code pushed to the repository in the 90 days before our check
- not applicable: Repository publishes a security policy (SECURITY.md)
- not applicable: Package names its licence with a standard (SPDX) identifier
- not applicable: The version the registry lists can be installed and is not withdrawn
- not applicable: npm package carries build provenance (attestation)
- not applicable: No known critical or high advisory in the package or its dependencies
- Not ranked by downloads: a remote server publishes no download figure
- Not ranked by stars: no public GitHub repository
From public records, not a safety rating. Each check with its reason
Operate this server? Correct a fact · README badge · Run the checks yourself
Key facts
- Runs
- remote (hosted by the publisher)
- Transport
- streamable HTTP
- Your own values
- none declared (not a guarantee)
- Sign-in
- none needed to open a session
- Tools
- 46
- Last tested
- 2026-11-04
How a client gets in
Connects without signing in
Read from the server's public metadata on 2026-11-04 (api.fastcac.com), in our read-only connection; no tool was called. It may have changed since. How it is read
Tool list at the three APIs
Not sent yet for this version (1.0.2).
Observed fact
This server accepted a session without any credential and lists 11 tools whose name or declaration suggests they change data (create_business, create_share_link, delete_business, remove_discount_code, remove_whatsapp and 6 more). That is our reading of the names; we did not call them. Source: our connection, 2026-11-04.
How fresh this is
- Live-tested
- yes, a real session (not a text-only review)
- Last tested
- 2026-11-04
- Mode
- read-only (no tool calls)
- Latest version
- 1.0.2, published 2026-11-04 (registry, as of the 2026-11-04 snapshot)
- First listed version
- 2026-11-03 (earliest version still in the registry; older removed versions would be earlier)
- Version history
- 3 versions listed, 2026-11-03 to 2026-11-04; 3 in the 90 days before the 2026-11-04 snapshot.(versions still listed in the registry only)
Most recent 3 versions
1.0.2· 2026-11-041.0.1· 2026-11-031.0.0· 2026-11-03
- Registry data
- snapshot 2026-11-04
- Package and repository
- checked 2026-11-04
- Engine
- mcp-runtime-engine@0.1.0 · sdk@1.32.0
Dead or stale signals
None found in the records we hold
Looked for and not found: deprecated in the registry. Does not apply: listed version cannot be installed or is withdrawn; repository link does not open; repository archived; no push in over 365 days. Each line is a dated fact from a public record. It does not say whether the server still works, and a record can change after the date shown.
Changes since the last refresh
New in the registry: not in the list of 2026-11-03, listed on 2026-11-04 with version 1.0.2 (published 2026-11-04).
Source: the official MCP Registry list on 2026-11-03 and on 2026-11-04.
What it is
What does this server offer?
Observed inventoryNone of its 46 tools are described as changing anything. For 46 the reading was uncertain, so no mark is shown.
- calculate_cac_fees
“CAC's official registration fees, line by line, for a business name, a limited company (by authorised share capital, default ₦1,000,000) or an NGO (Incorporated Trustees).”
Publisher declares: read-only yes · destructive no · open-world no
2 inputs, 1 required
entitystringrequiredshare_capitalnumber“Companies only: authorised share capital in naira.”
- check_annual_returns
“For a CAC business name: which annual returns are due from its registration date, which are overdue, CAC's estimated charge, and when the next one is due.”
Publisher declares: read-only yes · destructive no · open-world no
1 input, 1 required
registration_datestringrequired“YYYY-MM-DD, from the CAC certificate.”
- check_business_name_compliance
“CAC's verdict on a proposed name, the same check fastcac.com's name checker runs: CAC's naming rules first, then CAC's own compliance and similarity engine.”
Publisher declares: read-only yes · destructive no · open-world yes
3 inputs, 2 required
proposed_namestringrequiredline_of_businessstringrequired“An exact entry from CAC's line-of-business picklist (search_line_of_business).”name_typestring“Optional: business name or company (Ltd).”
- check_name_availabilityon 3 other servers
“Search CAC's public register for names matching or similar to a name, across every registration type (business names, companies, LLPs, trustees), ranked like fastcac.com's public search.”
Publisher declares: read-only yes · destructive no · open-world yes
1 input, 1 required
namestringrequired“The business name to check.”
- generate_business_names
“Brainstorm CAC-registrable business names for an idea.”
Publisher declares: read-only yes · destructive no · open-world yes
2 inputs, 1 required
ideastringrequired“Short description of the business.”line_of_businessstring“Optional CAC line of business to keep every name in.”
- get_cac_tax_id
“Get the Tax ID (TIN) CAC's public search shows for a registered business.”
Publisher declares: read-only yes · destructive no · open-world yes
3 inputs, 3 required
company_idintegerrequired“company_id from search_cac_register.”rc_numberstringrequired“rc_number from search_cac_register, e.g.”classification_idintegerrequired“classification_id from search_cac_register.”
- get_nin_request_status
“Where a request from start_nin_request stands: status (waiting_for_person, started, settling, verified, failed, expired, paid, delivered, delivery_failed), next_step in words, the products and their …”
Publisher declares: read-only yes · destructive no · open-world yes
1 input, 1 required
request_handlestringrequired“From start_nin_request.”
- search_cac_register
“Search the Corporate Affairs Commission's (CAC) public register for businesses already registered in Nigeria, by name or by RC/BN number.”
Publisher declares: read-only yes · destructive no · open-world yes
2 inputs, 1 required
querystringrequired“A business name, or an RC/BN number such as '1234567'.”entity_typestring“Limit to one kind of registration.”
- search_line_of_business
“Find exact entries in CAC's line-of-business picklist matching what the business does.”
Publisher declares: read-only yes · destructive no · open-world no
1 input, 1 required
querystringrequired
- start_nin_request
“Start a paid request on fastcac.com for: 'slip' = the person's NIMC NIN slip (PDF and print-ready image), using their NIN; 'phone' = the person's NIN, found with the phone number they registered with…”
Publisher declares: read-only no · destructive no · idempotent no · open-world yes
1 input, 1 required
kindstringrequired“'slip' if they know their NIN and want the slip; 'phone' to find their NIN (the person chooses whether to add the slip on fastcac.com).”
- apply_discount_code
“Apply a discount code the user gives you to a registration that isn't paid yet.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs, 2 required
business_idstringrequiredcodestringrequired
- create_business
“Start a new registration: creates the business (as a draft) with the name the user wants to register, in the workspace they're in (pass `workspace` only when they ask for the other one).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs, 1 required
namestringrequired“The business name they want to register.”workspacestring
Show 34 more tools
- create_share_linkon 12 other servers
“Make a share link and show it as a Copy button.”
Publisher declares: read-only no · destructive yes · idempotent no · open-world yes
3 inputs, 1 required
business_idstringrequiredpurposestringreview_enabledboolean
- delete_business
“Delete one of their businesses that hasn't been paid for (draft or pending_payment) with its registration details and documents.”
Publisher declares: read-only no · destructive yes · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
- fetch_nin_slip
“Get their NIN slip for them from NIMC's record for their confirmed NIN, instead of them uploading a photo of it.”
Publisher declares: read-only no · destructive no · idempotent no · open-world yes
1 input, 1 required
business_idstringrequired
- get_action_statuson 3 other servers
“Whether the person finished a step you handed them on FastCAC (a tool returned status 'action_required' with an action_id): confirming a change, paying, uploading documents, entering their NIN or ver…”
Publisher declares: read-only yes · destructive no · open-world no
1 input, 1 required
action_idstringrequired“From the tool's result.”
- get_cac_documents
“For an approved registration: show Download buttons for the CAC certificate and status report, once we have them.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
- get_capabilitieson 56 other servers
“What they can do right now and why not: the workspace they're in and who they register for, the Agent subscription (status, renewal, days left), credits, WhatsApp, personal drafts, whether a registra…”
Publisher declares: read-only yes · destructive no · open-world no
Takes no inputs.
- get_creditson 28 other servers
“Their credit balance, recent credit activity, Agent subscription status, and the credit packs they can buy (pack_id for request_credit_purchase).”
Publisher declares: read-only yes · destructive no · open-world no
Takes no inputs.
- get_notification_preferenceson 1 other server
“How they get updates: in-app, email, WhatsApp, and WhatsApp tips and offers.”
Publisher declares: read-only yes · destructive no · open-world no
Takes no inputs.
- get_registration_state
“Read where one of the user's registrations stands: status, stage, next action and action_path, which form sections are done, missing or invalid fields (names only), each document's status and what's …”
Publisher declares: read-only yes · destructive no · open-world no
1 input, 1 required
business_idstringrequired“A business id from list_my_businesses.”
- get_subscriptionon 13 other servers
“Their Agent subscription: status (none, trialing, active, past_due...) and period end.”
Publisher declares: read-only yes · destructive no · open-world no
Takes no inputs.
- list_my_businesseson 1 other server
“List the signed-in user's businesses with each registration's stage, the next action, and action_path (the dashboard page for that action).”
Publisher declares: read-only yes · destructive no · open-world no
Takes no inputs.
- list_notificationson 19 other servers
“Their recent notifications (unread only by default).”
Publisher declares: read-only yes · destructive no · open-world no
1 input
unread_onlyboolean
- list_share_linkson 1 other server
“A business's share links: the status link (anyone with it sees progress) and the details form link (the owner fills in their own details).”
Publisher declares: read-only yes · destructive no · open-world no
1 input, 1 required
business_idstringrequired
- manage_subscriptionon 3 other servers
“Show a button to Paystack's page for changing their card or cancelling the subscription.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
Takes no inputs.
- mark_notifications_readon 7 other servers
“Mark all their notifications as read.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
Takes no inputs.
- recheck_documents
“Run the checks again on documents that are stuck (e.g.”
Publisher declares: read-only no · destructive no · idempotent no · open-world yes
1 input, 1 required
business_idstringrequired
- refresh_cac_status
“Ask CAC now for the latest on a registration that's with them (submitted or queried).”
Publisher declares: read-only yes · destructive no · open-world yes
1 input, 1 required
business_idstringrequired
- remove_discount_code
“Remove the discount code from a registration that isn't paid yet.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
- remove_whatsapp
“Remove their WhatsApp number.”
Publisher declares: read-only no · destructive yes · idempotent no · open-world no
Takes no inputs.
- rename_business
“Rename a business (its display name; not allowed once CAC approved it).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs, 2 required
business_idstringrequirednamestringrequired
- request_credit_purchase
“Show a Pay button for a credit pack (Agent subscribers).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
pack_idstringrequired
- request_documentson 2 other servers
“Show an Upload button for a registration's documents (passport photo, NIN slip, signature, and a supporting document if CAC's name check asked for one).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs, 1 required
business_idstringrequireddocument_typesarray
- request_nin
“Show a secure NIN field for a business so the user can verify their identity.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
- request_paymenton 6 other servers
“Show a Pay button for a registration once its form is complete.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
- request_subscriptionon 1 other server
“Show a Start free trial button for the Agent subscription (for people registering businesses for clients).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
Takes no inputs.
- request_whatsapp_verification
“Show a Verify on WhatsApp button.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
Takes no inputs.
- revoke_share_linkon 2 other servers
“Turn off a business's share link.”
Publisher declares: read-only no · destructive yes · idempotent no · open-world no
2 inputs, 1 required
business_idstringrequiredpurposestring
- set_share_review
“Turn on or off the 'review the details' section on a business's live status link.”
Publisher declares: read-only no · destructive no · idempotent no · open-world yes
2 inputs, 2 required
business_idstringrequiredenabledbooleanrequired
- show_share_link
“Show a Copy button for a business's live share link.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs, 1 required
business_idstringrequiredpurposestring
- switch_workspaceon 7 other servers
“Switch the dashboard between their Personal workspace (their own businesses) and the Agent workspace (businesses they register for clients; needs the subscription).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
workspacestringrequired
- update_notification_preferenceson 3 other servers
“Turn update channels on or off.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
4 inputs
in_app_enabledbooleanemail_enabledbooleanwhatsapp_enabledbooleanwhatsapp_marketing_enabledboolean
- update_profileon 55 other servers
“Change their account name (first and/or last name).”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
2 inputs
first_namestringlast_namestring
- update_registration_fields
“Save registration form fields from what the user told you.”
Publisher declares: read-only no · destructive yes · idempotent no · open-world no
2 inputs, 2 required
business_idstringrequiredfieldsobjectrequired“Field name -> value.”
- use_nin_photo_for_passport
“Use the photo from their confirmed NIN record as the passport photograph instead of uploading one.”
Publisher declares: read-only no · destructive no · idempotent no · open-world no
1 input, 1 required
business_idstringrequired
Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-11-04.
How well are its tools described?
Features #4 and #5
How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.
Descriptions
AI reading of each description
No AI reading was available for this server's tools (the two runs did not agree, or the listing was not reviewed).
Counted from the listing
- Parameters with a description
- 32% of 57
- Tools with a description
- 100% of 46
- Typical description length
- 233 characters
The tool set
Counted from the listing
- Tools
- 46
- Size of the list
- about 9,907 tokens for an agent to load (characters ÷ 4)
- Naming
- 46 of 46 names use snake_case
AI reading: easy to mix up
No pair found.
The AI items cover 0 of 46 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none, comparing tools within groups of 40. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.
How do I add it to my client?
Config from the registry entry
From the remote endpoint (Streamable HTTP)
We connected to this URL on 2026-11-04 (a read-only session: no tool was called).
Add to CursorAn install link in the format Cursor documents, holding the Cursor config below.
Claude Desktop or claude.ai
Settings → Connectors → Add custom connector, then paste: https://api.fastcac.com/mcp
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
"mcpServers": {
"cac": {
"url": "https://api.fastcac.com/mcp"
}
}
}VS Code · .vscode/mcp.json
{
"servers": {
"cac": {
"type": "http",
"url": "https://api.fastcac.com/mcp"
}
}
}VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"cac","type":"http","url":"https://api.fastcac.com/mcp"}'Claude Code
claude mcp add --transport http cac https://api.fastcac.com/mcp
Cline · cline_mcp_settings.json (Cline CLI: ~/.cline/data/settings/; in the editor: MCP Servers → Configure → Configure MCP Servers)
{
"mcpServers": {
"cac": {
"type": "streamableHttp",
"url": "https://api.fastcac.com/mcp",
"disabled": false,
"autoApprove": []
}
}
}Gemini CLI · ~/.gemini/settings.json, or .gemini/settings.json in a project
{
"mcpServers": {
"cac": {
"httpUrl": "https://api.fastcac.com/mcp"
}
}
}OpenAI Codex · ~/.codex/config.toml, or .codex/config.toml in a trusted project
[mcp_servers.cac] url = "https://api.fastcac.com/mcp"
Zed · Zed settings file (command: zed: open settings file)
{
"context_servers": {
"cac": {
"url": "https://api.fastcac.com/mcp"
}
}
}Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+
npx @modelcontextprotocol/inspector@2.11.0 --server-url https://api.fastcac.com/mcp --transport http
- The server runs on the operator's infrastructure; it may ask you to sign in when you first connect.
- Zed's docs we read on 2026-10-26 describe remote servers by URL and do not name the transport.
- The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.
Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21; Cline, Gemini CLI, OpenAI Codex and Zed 2026-10-26). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.
Does the registry listing match what we found?
Feature #6The registry checks an entry when it is published (each new version), and nothing re-checks it on a schedule. A difference below is about the listing, not a judgement of the publisher.
| Registry says | We found | Result | Source · date |
|---|---|---|---|
| Remote endpoint api.fastcac.com/mcp | Session opened | matches | our test · 2026-11-04 |
| No credential declared as required | Opened a session without any credential | matches | our test · 2026-11-04 |
Choosing
Record checks
Public records · not a safety rating1 of 2 record checks met · 7 do not apply
- Not ranked by downloads: a remote server publishes no download figure
- Not ranked by stars: no public GitHub repository
- MetRegistry entry is active and says how to run itActive, with a package or a remote address.
- Not metSource repository link opensThe registry entry gives no repository link.What changes this check: This check opens the repository link in the registry entry. GitHub's documentation describes changing a repository's visibility in its Settings, under Danger Zone, Change visibility. GitHub: setting repository visibility
- Does not applyRepository is not archivedNo public GitHub repository to read.
- Does not applyCode pushed to the repository in the 90 days before our checkNo public GitHub repository to read.
- Does not applyRepository publishes a security policy (SECURITY.md)No public GitHub repository to read.
- Does not applyPackage names its licence with a standard (SPDX) identifierRemote server: it ships no package.
- Does not applyThe version the registry lists can be installed and is not withdrawnRemote server: it ships no package.
- Does not applynpm package carries build provenance (attestation)Remote server: it ships no package.
- Does not applyNo known critical or high advisory in the package or its dependenciesRemote server: it ships no package.
Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-11-04. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating, and the same rules apply to every server. How each check works · Leaderboards · How we stay neutral
Common questions about com.fastcac/cac
Answered from the data aboveWho publishes com.fastcac/cac?
The registry ties the namespace com.fastcac to the domain fastcac.com; only its owner can publish under it. These are facts from the registry and GitHub, not a rating.
Does com.fastcac/cac need an API key or sign-in?
It opened a session without any credential on 2026-11-04. The registry entry declares no required credential; no declaration is not a guarantee.
Has com.fastcac/cac been security tested?
Partly. 3 of the 15 checks that apply to it were exercised. It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. ProtocolProbe publishes no security verdict for a named server.
Found this page useful?
Anonymous · no sign-inA quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.
Compare with another server
Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.
Security testing
What did we test, and what did we leave out?
18 checks · features #1, #2
Open without sign-in
It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. No security score is given; a check we did not run is never counted as passed.
- Inventory: exercised
- Hidden instructions: exercised
- Real execution: not run · our policy
- Secret leak: not run · nothing to check it against
- Internal addresses: not run · our policy
- Unconfirmed changes: not run · our policy
- Bad input: not run · our policy
- Model requests: not run · nothing to check it against
- Sensitive questions: not run · nothing to check it against
- Folder boundary: not run · our policy
- Log leaks: not run · nothing to check it against
- Hidden content: not run · nothing to check it against
- Fake assistant turns: not applicable
- Token passthrough: not applicable
- Token audience: not applicable
- Sign-in redirect: not run · our policy
- Consent handling: not testable from outside
- Sign-in metadata: exercised
3 exercised12 not run (reason given)3 not applicable
Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 3 of the 15 checks that apply to it were exercised. We do not publish security-check outcomes for named servers. These 18 checks are separate from the record checks at the top of this page, which read public records only.
- 1Inventory
tool-listReads the declared tools, resources and prompts.exercised - 2Hidden instructions
description-poisoningLooks for hidden instructions in tool descriptions.exercised - 18Sign-in metadata
oauth-url-schemeChecks the published sign-in metadata for unsafe URLs.exercised
- 3Real execution
real-executionCalls a tool and checks what really happens.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy - 4Secret leak
canary-leakPlants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against - 5Internal addresses
ssrfChecks whether a tool can be steered to internal addresses.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy - 6Unconfirmed changes
write-without-confirmationChecks whether tools that change data act without asking.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy - 7Bad input
error-handlingSends bad input and watches how the server answers.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy - 8Model requests
samplingChecks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against - 9Sensitive questions
elicitation-sensitive-dataChecks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against - 10Folder boundary
root-boundaryChecks whether the server reaches outside the folders it was given.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy - 11Log leaks
logging-side-channelChecks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against - 12Hidden content
audience-hidingChecks resources that hide content from the user.This check needs content the server returns, and nothing was read or called.not run · nothing to check it against - 16Sign-in redirect
open-redirectChecks the sign-in redirect for abuse.Testing the sign-in redirect means sending probes to the operator's sign-in service, which we do not do.not run · our policy - 17Consent handling
confused-deputyChecks consent handling when one service acts for another.Depends on the operator's own consent screen, which differs per server and cannot be tested from outside.not testable from outside
- 13Fake assistant turns
fake-assistant-turnChecks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable - 14Token passthrough
token-passthroughChecks whether the server forwards a user's token to other services.The server opened a session without sign-in, so there is no token flow to check.not applicable - 15Token audience
token-audience-validationChecks whether tokens meant for another service are accepted.The server opened a session without sign-in, so there is no token flow to check.not applicable
Source: our own test, 2026-11-04, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.
What happened during the test?
Feature #8
The steps in order, as the test record holds them.
- 0 msStarted a read-only session with the server's remote endpoint
- 1,412 msConnected after 0 redirects. No credential was sent or needed.
- Read the inventory: 46 tools, 0 resources, 0 prompts.
- 3,996 msFinished: 3 checks exercised.
Reference
How is it classified?
18 fields
One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.
“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.
Cite or correct this page
Sources and corrections
Suggested citation
ProtocolProbe. “com.fastcac/cac: MCP server record.” Data checked 2026-11-04. https://protocolprobe.com/mcp/servers/com.fastcac/cac
Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.
As JSON: this record in the API · API documentation.
Badge for your README
[](https://protocolprobe.com/mcp/servers/com.fastcac/cac)
It shows this server's record-check count: facts from public records, no tool called. It is not a security rating or a pass. It links here and updates after each data reload.
Something wrong, or is this yours?
If a fact here is wrong, tell us and we will re-check it. If you operate this server, you can run our checks on it yourself with the free self-test command; we call no server’s tools ourselves for anything shown here.
Write to hello@protocolprobe.com · corrections log · methodology