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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Communication & messaging

fnlowl

Read and manage fnlowl widgets, leads, email sequences and analytics from an AI assistant.

Checks passed
14 / 22

1 failed · 7 not measured

Median response
145 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
40

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 80 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name fnlowl.

  • Pass
    Lists tools

    tools/list returned 40 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 145 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 204 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    37 of 220 parameters have a description (17%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-02T20:13:01.167178Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using fnlowl

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http fnlowl https://api.fnlowl.com/v1/mcp

Capabilities

Tools 40

activate_sequence

Ask for a draft sequence to start sending. Called over the API or MCP this does NOT activate it: it creates a pending approval and returns its requestId, and the sequence starts — enrolling future matching leads and mailing them on its timer — only when a signed-in person approves it in the fnlowl dashboard. Tell the user it is waiting for their approval there. Editing the sequence withdraws a pending request, so call this again after any change. An already-active sequence returns status active and no request.

Discovered
ask_question

Ask the fnlowl Advisor a question in plain English. It knows how fnlowl works — widgets and where each kind appears, the embed, sequences, campaigns, sending, credits, plans, MCP — and can read the account's own widgets, leads, analytics, campaigns, sequences and sending status to answer. Suited to "how does X work", "why is Y empty" or "what should I do next". It is read-only and spends an AI credit; a direct read tool is cheaper when the data needed is already known. Takes one self-contained question.

Discovered
create_project

Creates a project — one more site or brand under the account — and returns its id. Pass that id as the project argument on later calls to work inside it. Projects cannot be deleted from here.

Discovered
create_template

Create a transactional template. category is one of authentication, account, orders, notifications. Use {{name}} placeholders in the subject and body for values supplied when it is sent; a placeholder nobody supplies is replaced with nothing. It creates the template only — sending needs a person.

Discovered
create_widget

Create a widget in the current project. Six kinds: lead-magnet, popup, survey, announcement-bar, quiz, calculator. It is always created as a draft, and the result lists `issues` — what is still missing before it could go live (empty when nothing is); fix them with update_widget. Going live is a separate step, request_widget_publish. What each kind needs (send only name and kind and the rest starts from sensible defaults): lead-magnet — headline, description, buttonText, contentUrl (a link to the file), optional questions; type "ai" personalises the delivery and needs at least one question. popup — headline, description, buttonText, plus trigger (immediate | exit-intent | scroll | time) with triggerValue (seconds for time, percent for scroll) and placement (center | bottom-right | bottom-left | top-right | top-left); a popup defaults to a time trigger of 8 seconds. For more than one condition, or a click/hover trigger, send triggers (an array of {type: immediate | exit-intent | scroll | time | click | hover, value, selector}; selector is a CSS selector on the host page, only meaningful for click/hover) with triggerMode "any" (the default — opens on the first one met) or "all" (waits for every one). startAt/endAt (epoch milliseconds) bound when a widget runs at all; leave both unset to run with no date limit. survey — questions, each {text, type: short | long | single | multi, options: [] (labels, only for single and multi)}; asks for an email afterwards only if requireEmail is true. quiz — quizQuestions [{text, options: [{label, score}]}] with at least two options each, and quizTiers [{minScore, maxScore, label, message}]; the visitor's total is the sum of the chosen options' scores, and the tiers must cover every possible total from the lowest to the highest with no gap. calculator — calcInputs [{label, min, max, step, default}] (integers), calcFormula using the inputs BY POSITION as a, b, c… with + - * / and brackets (e.g. "a * b * 12"), and calcOutputTemplate where {{result}} is replaced by the answer (e.g. "You could save ${{result}} a year"). announcement-bar — barMessage, barCtaText (the link label), barCtaUrl, barPosition (top | bottom). Popups and bars load sitewide from the one install snippet and can be kept off pages: hideOnValue lists URL pieces they never show on (e.g. "/checkout, /thank-you"), and showOn "url" with showOnValue limits them to pages whose URL contains one of the pieces; showOn "all" is every page. Style is optional and inherits the account's brand when omitted: theme, accentColor, backgroundColor, textColor (hex), cornerStyle, logoUrl.

Discovered
draft_campaign

Create a campaign AS A DRAFT. There is no tool that sends one: sending puts mail in thousands of real inboxes, spends deliverability reputation that cannot be bought back, and cannot be undone. A person sends it from the dashboard. recipientScope is "all" or a single widget id, and unsubscribed or bounced addresses are excluded automatically.

Discovered
draft_sequence

Create a sequence AS A DRAFT. Steps are either an email or a delay in days — a delay is its own step, so two emails can run back to back. A branch may be added at the end; its paths are evaluated first-match-wins, left to right, and a filter with field null always matches, so it only makes sense last. Filters can only test what a lead already carries: unsubscribed and quizTierLabel.

Discovered
list_campaigns

Campaigns in this project, newest first, with their status. Open and click numbers come from the sent-email ledger, not from a counter on the campaign.

Discovered
list_email_deliveries

List recent email outcomes for this account. Recipients are masked; use this to diagnose queued, delivered, opened, clicked, bounced, complained, or failed mail. `sentToday` counts the last 24 hours on a rolling basis, while `sharedTrial.sendsUsed` counts the account's lifetime sends on the shared trial, so the two legitimately differ. Does not send mail.

Discovered
list_integrations

List native integration providers and connection health. Credentials are never returned.

Discovered
list_leads

Captured leads for the current project, newest first. PAGED — at most 200 per call, and the limit is a hard cap, not a default you can raise; pass offset for the next page (limit 50 with offset 50 returns leads 51 onward). These rows are real people's email addresses. Each lead carries a quality verdict (good, warn, bad, unchecked) from cheap capture-time checks; bad leads are stored but were never mailed, and quality filters the list.

Discovered
list_projects

Lists the projects this credential can act on. A project is one site or brand under the account, and every widget, lead, campaign and sequence belongs to one. Every other tool takes an optional project argument: pass one of these ids to run that call in that project. Without it, a call uses the connection's project (the row with current true) or, when no row is current, reads across the whole account. When there is more than one row and none is current, ask the user which website they mean and pass its id on each call.

Discovered
list_sequence_enrollments

Who is running through which sequence: for a lead (leadId) or for a sequence (sequenceId), each enrolment's status (active, finished or stopped), the step it is on and when it is next due. This is how to answer "why did this lead get, or not get, the follow-up" — a lead with no enrolment was never enrolled, and activating a sequence enrols future leads, not past ones. At most 100 rows, oldest first.

Discovered
list_sequences

Sequences in this project with their steps and branch. The shape is BOUNDED: a linear chain of steps, then at most one branch point, each path its own linear chain. No nesting, no rejoining, no parallel paths.

Discovered
list_templates

Transactional templates in this account. Built-in starters are marked isCustom false and cannot be deleted.

Discovered
list_widget_analytics

The same numbers per widget, best-converting first. Use this to answer which magnet is working; use widget_results for where one widget's traffic came from.

Discovered
list_widgets

Every widget in the current project, newest last. Returns summaries only — id, name, kind, type, status, article, views, completions. Use read_widget for one widget's full content.

Discovered
offer_choice

Presents the user with a choice between 2 to 4 options, each with a label and a one-line description, one optionally marked recommended. It is for decisions where reasonable options would build different things — which widget kind, what score ranges, what copy or trigger — and nothing the user said settles it. It changes nothing and returns the options for the user to answer.

Discovered
pause_sequence

Move a sequence to draft, which stops new enrolments. Stopping mail is never the slower path, so this applies immediately. Starting one again is activate_sequence, which a person approves: an active sequence enrols every future lead and sends on a timer with nobody watching.

Discovered
plan_site_strategy

Gives an agent what it needs to advise on a website's lead capture: a snapshot of the website's widgets (kind, live or draft, views, completions, conversion), the six widget kinds with where each appears, and the steps to follow — read the site, ask the user questions with offer_choice, then rank 3-5 fixes. It fetches no pages and changes nothing. Suited to "what should I do on my site" or "audit my site". Scoped to the current website; pass `project` to pick another.

Discovered
read_ai_context

The account's AI context: what the blog is about, its pricing tiers, value props, testimonials, design direction and tone presets. Every AI-personalised lead magnet is generated from exactly this plus the visitor's own answers. It belongs to the whole account and is shared by every website on it, so a connection limited to one website can read it but not change it.

Discovered
read_ai_generation_status

Read recent AI lead-magnet generation outcomes by status and widget. Visitor answers, generated content, lead ids, and failure details are not returned.

Discovered
read_analytics

Totals for the current project: widget count, page views, completions, conversion percentage, lead count and how many have unsubscribed. Conversion is completions divided by views as a whole percentage; with no views yet it reads 0, which means NO DATA rather than a failure. Completions is not leads — an announcement-bar or an ungated calculator completes without capturing an address. Pass from and to (epoch milliseconds, both) for a date range: the response then also carries that window and the same-length window before it (views, leads, conversions, revenue in cents), plus leads by device and by UTM source. Leads marked bad are excluded from those figures.

Discovered
read_brand

The brand: site name, accent colour, sender name, logo and the postal address that every commercial email needs in its footer. With a project in scope this is that website's brand — the account defaults with the website's own overrides applied; without one it is the account defaults.

Discovered
read_experiment_results

The A/B experiment a widget is in (or last ran as control): per arm, assigned views, leads, conversion rate and 95% interval in basis points (1234 = 12.34%), and lift against the control arm. result "insufficient_data" means at least one arm has too few views for a rate to mean anything; in that case NO rate or lift is given for any arm, so none is available. A running experiment lists every arm, including one with no views yet. The "holdout" arm sees no widget, so it shows exposure only. beatsControlBp is the chance (in basis points) that a variant beats the control. verdict.status is collecting, leaning or winner, with a leader arm and a plain-language note; it informs a decision and never stops or publishes anything. Views are page loads, so repeat visitors count more than once and the odds are directional.

Discovered
read_integration_delivery_status

Read recent queued ESP/webhook handoff outcomes and retry state. Lead identifiers, payloads, and credentials are not returned.

Discovered
read_lead

One lead with the answers it gave, and its quiz score and tier if it came from a quiz. The score is frozen at the moment of submission — it is what that visitor actually saw, not a recomputation against the quiz as it stands today.

Discovered
read_plan_usage

Reads the account's plan and what it has used of each monthly quota: leads captured, emails sent, AI messages, plus how many websites and widgets exist against the plan's limits. Leads are counted over the billing period and everything else over the calendar month (UTC). `plan` is null when no plan is active. Answers "what is my limit" and "how close am I to the cap". Changes nothing.

Discovered
read_sending_status

Read account sending readiness, domain verification, daily usage, and recent reputation state. While the sending domain is not yet verified it also returns `records`: the DNS records to publish. `sentToday` counts the last 24 hours on a rolling basis, while `sharedTrial.sendsUsed` counts the account's lifetime sends on the shared trial, so the two legitimately differ. Does not send mail.

Discovered
read_widget

One widget in full, plus `issues` — what is still missing before it could go live. Includes its questions, quiz questions and options, quiz tiers and calculator inputs. Which of those are meaningful depends on the kind: questions for lead-magnet and survey, quiz fields for quiz, calculator inputs for calculator, none for popup and announcement-bar. `placement` says where it shows on a site: popups and bars run on every page, every other kind only where a page embeds it — going live alone does not place it on any page.

Discovered
read_widget_results

One widget's views, completions, conversion, and its leads grouped by referrer. The referrer is whatever the visitor's browser reported when they submitted, so it is a rough attribution, not a tracked source. Also returns the funnel (views, completions, leads, conversions, revenue in cents; conversions are purchases credited to a lead within 14 days of capture), questionDropoff (how many visitors left a survey on each question, in question order) and the same optional from/to date range as read_analytics.

Discovered
request_widget_publish

Ask for a draft widget to go live. This requests publication; it does not publish. Called over the API or MCP with a key it does NOT publish: it creates a pending approval carrying a before/after snapshot and returns it, and the widget goes live only when a signed-in person approves it in the dashboard. The result also says where the widget will appear (`placement` — going live does not put a quiz, survey, calculator or lead magnet on any page by itself) and lists `warnings`, such as copy that promises an email no active sequence will send.

Discovered
start_experiment

Split traffic between a control widget and 1 to 3 variants. The variants must already exist as their own live widgets, of the same kind and project as the control (created with create_widget and made live with request_widget_publish). On a small site one variant at a time is the practical limit: every extra arm needs the same traffic again. Traffic splits evenly unless trafficPcts is given: one whole-number percentage per arm, the control first and then each variant in the order listed, which together with holdoutPct must add up to 100. holdoutPct (0 to 50, default 0) is an optional share that sees no widget; it can never produce a lead, so it shows exposure only and does NOT measure lift. read_experiment_results reports views, leads, rate and lift per arm, plus a verdict, once it is running.

Discovered
stop_experiment

End a running experiment. Counts stop with it; starting a new one on the same widgets begins with fresh counts, not a resume.

Discovered
update_ai_context

Change the AI context: the about text, design direction, value props, pricing tiers and testimonials that every AI-personalised lead magnet is generated from. Changes apply to generations from then on; lead magnets already sent are not rewritten. Only the fields sent are changed. It holds what the site actually says, so testimonials and prices come from the owner. The AI context belongs to the whole account and is shared by every website on it, so it cannot be changed from a connection limited to one website.

Discovered
update_brand

Change brand settings. Only the fields sent are changed. With a project in scope this sets that website's own override and leaves the account defaults — and every other website — alone; without one it changes the account defaults every website inherits. The accent colour must be a hex value — it is interpolated into a stylesheet that renders on customers' websites.

Discovered
update_campaign

Change a draft campaign. A campaign that has already been sent cannot be edited — the ledger describes what actually went out, and editing it afterwards would make that a lie.

Discovered
update_sequence

Change a DRAFT sequence. Only the fields sent are changed, except that sending steps or branch replaces the whole of that part, so send the complete chain you want. It cannot edit an active sequence and cannot activate one: an active sequence is paused with pause_sequence, edited, and started again with activate_sequence. Enrolments already running keep the plan they started with.

Discovered
update_template

Change a template's name, category, subject or body — only the fields sent. Built-in starters can be rewritten too (they just cannot be deleted). It changes what later sends of this template say; it sends nothing.

Discovered
update_widget

Change a widget. Only the fields sent are changed, with one exception: sending ANY of questions, quizQuestions, quizTiers or calcInputs replaces ALL FOUR with exactly what is sent, so send the complete set you want to end up with. Publishing is a separate action. Views and completions cannot be set — they are counted from real traffic. The result lists `issues` — what is still missing before it could go live. What each kind needs (send only name and kind and the rest starts from sensible defaults): lead-magnet — headline, description, buttonText, contentUrl (a link to the file), optional questions; type "ai" personalises the delivery and needs at least one question. popup — headline, description, buttonText, plus trigger (immediate | exit-intent | scroll | time) with triggerValue (seconds for time, percent for scroll) and placement (center | bottom-right | bottom-left | top-right | top-left); a popup defaults to a time trigger of 8 seconds. For more than one condition, or a click/hover trigger, send triggers (an array of {type: immediate | exit-intent | scroll | time | click | hover, value, selector}; selector is a CSS selector on the host page, only meaningful for click/hover) with triggerMode "any" (the default — opens on the first one met) or "all" (waits for every one). startAt/endAt (epoch milliseconds) bound when a widget runs at all; leave both unset to run with no date limit. survey — questions, each {text, type: short | long | single | multi, options: [] (labels, only for single and multi)}; asks for an email afterwards only if requireEmail is true. quiz — quizQuestions [{text, options: [{label, score}]}] with at least two options each, and quizTiers [{minScore, maxScore, label, message}]; the visitor's total is the sum of the chosen options' scores, and the tiers must cover every possible total from the lowest to the highest with no gap. calculator — calcInputs [{label, min, max, step, default}] (integers), calcFormula using the inputs BY POSITION as a, b, c… with + - * / and brackets (e.g. "a * b * 12"), and calcOutputTemplate where {{result}} is replaced by the answer (e.g. "You could save ${{result}} a year"). announcement-bar — barMessage, barCtaText (the link label), barCtaUrl, barPosition (top | bottom). Popups and bars load sitewide from the one install snippet and can be kept off pages: hideOnValue lists URL pieces they never show on (e.g. "/checkout, /thank-you"), and showOn "url" with showOnValue limits them to pages whose URL contains one of the pieces; showOn "all" is every page. Style is optional and inherits the account's brand when omitted: theme, accentColor, backgroundColor, textColor (hex), cornerStyle, logoUrl.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected80 ms40
Connected210 ms40