Cromanion

com.cromanionPublished by cromanion.comOfficial publisherv0.7.0Updated Oct 24, 2026

Raise conversion on a site you manage. No API key, no human to wake — you prove the domain.

Overview

AI-generated overview

Cromanion lets an assistant claim a website it manages, install a tracking tag, and run a conversion agent that personalizes visitor experiences and measures…

What you can do
  • Claim and provision sites: open a claim, publish a proof, verify it, add sites and domains, re-crawl the site
  • Check setup: site status, install diagnostics, error reference, and the permissions the owner granted
  • Review and decide: pending rewrites, rules and goals, approve or reject, reword playbook rules, mark notifications read
  • Configure the agent: mode, goals, voice and forbidden claims, surfaces and styling, holdout share, exclusions, lead destination and HubSpot disconnect
  • Read traffic: recent visits and single visit stories, live visitors, and measured impact against a control group
  • Ask the owner for things only they can do, and get a Stripe checkout link for a paid plan
When to use it
Use it when an assistant is asked to improve conversion on a website the user owns or manages, and the user is willing to publish a domain proof and install a snippet. It suits ongoing work where the assistant configures the agent, reviews what it proposes, and reports measured results.
Requirements
A remote streamable HTTP endpoint; no local package. A website the user controls, so a well-known file, meta tag or DNS TXT record can be published. The first call needs no credential; later calls send the claim secret as an Authorization bearer token. Paid features such as live visitors need a Pro or higher plan.
Before you install
The claim secret is a bearer credential for the site; treat it as a secret. Approving a goal permanently changes what every impact figure means, and set_mode act lets the agent intervene with visitors in the owner's name. Voice facts are attributed to the owner, and lead destination changes silently redirect captured addresses, so they are emailed to the owner. Upgrades go through a Stripe link the human pays for.

Installation

In SourceWeft

  1. Open Cromanion in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.cromanion%2Fcromanion/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "cromanion": {
      "type": "http",
      "url": "https://cromanion.com/api/mcp"
    }
  }
}

Tools

29

cromanion_open_claim

Start a Cromanion signup

Start here, and you need nothing to do it — no API key, no human. This call takes no credential and creates NOTHING: no account, no key, no charge. It returns a challenge to publish on the site you manage (a file, a meta tag or a DNS record — whichever your hosting lets you write) and the secret you will authenticate with once the proof is read. That proof is the whole trust model: we cannot take your word for an email address, but we can check what you control. Store the secret; it is shown once. Refuses if the address already has an account, because controlling a site does not prove controlling a mailbox.

ParametersagentemailrequiredsiteUrlrequired

cromanion_verify_claim

Redeem the claim and create the account

Redeem a claim once you have published one of its three proofs (a /.well-known file, a <meta> tag, or a DNS TXT record). On success it creates the account and the site and returns the tracking snippet to install. Idempotent — safe to retry. Requires the claim secret as a bearer token.

Takes no parameters.

cromanion_site_status

Check the install and the crawl

Check the site you provisioned: whether the tag is actually live (a beacon received from your own domain, not merely a snippet handed to you), how the crawl is going, and the plan. Poll this after installing the snippet. Requires the claim secret as a bearer token.

ParameterssiteId

cromanion_install_check

Diagnose why the tag is not firing

Why the tag is not firing. cromanion_site_status tells you `verified: false`; this tells you WHY — fetching your human's own pages and reporting, per page, whether the tag is there and what is stopping it. It finds the four failures a boolean cannot: the tag missing from some pages but not others, a Content-Security-Policy blocking the script, a consent manager holding it, and beacons arriving from a host the site was not claimed under. Each comes back with the fix. Rate-limited to one check every two minutes, because it fetches ten pages from your human's server.

ParameterssiteId

cromanion_errors

Read every refusal this server can return

Every refusal this server can return, and what to do about each. Needs no credential — you can read it before you have one, or after a refusal has told you the one you had is gone. The field to branch on is `retry`: `later` means a cooldown or a transient, `fix_request` means change something and resend, `needs_human` means nothing you send will help until a person acts. Read it once and stop guessing whether a 409 is worth retrying.

Takes no parameters.

cromanion_grants

Read your own permissions

List what your human has allowed this agent to do, and what they have not. Read this before assuming a capability — the alternative is discovering your permissions by failing in front of them. You cannot change these yourself; only your human can, in their console.

Takes no parameters.

cromanion_pending

List everything awaiting a decision

Everything on this site that is waiting for a decision: page rewrites the agent wants to make, rules it distilled from real sessions, conversions it spotted but has never counted, and pages your traffic found that the crawl missed. This is the client's actual job in the console, in one call. Rule on an item with cromanion_decide.

ParameterssiteId

cromanion_config

Read what is in force on this site

Everything IN FORCE on this site: the conversions that count, the facts you may state and the ones forbidden, which surfaces are enabled, the brand, and every distilled rule WITH its status. cromanion_pending shows what is waiting for a decision; this shows what was already decided — including by you. Read it before writing anything, because most writes here REPLACE rather than add.

ParameterssiteId

cromanion_decide

Approve, reject or pause one pending item

Rule on one thing from cromanion_pending: pass its `kind` and `id` back unchanged with a decision. `approve` / `reject` for everything; `pause` additionally for a playbook rule. Approving a GOAL is different in kind from the rest — it changes what every impact figure for this site means, permanently. You cannot edit rule text here, only rule on it.

ParametersidallkindrequiredsiteIddecisionrequired

cromanion_set_playbook

Reword a rule, or distil fresh ones

Reword a distilled rule, or ask for a fresh distillation. Rules are what the agent learned from real sessions; cromanion_decide approves or pauses them, and this changes what they SAY. Send a ruleId with condition and/or recommendedAction to reword one — ids come from cromanion_config, which also shows rules you have already approved or paused. Send redistill: true instead to distil new rules from recent sessions; they arrive as `proposed` for you to rule on. Rate-limited to one distillation an hour. Needs the decisions permission.

ParametersruleIdsiteIdconditionredistillrecommendedAction

cromanion_ask_human

Ask your human for something only they can do

Ask your human for something only they can do, in a place they will actually see it. Every other refusal here ends with YOU reading it — a permission they did not grant, a payment you cannot make, a mode you may not set — and from their side you simply went quiet. This puts one request on their notifications screen, attributed to you. Nothing replies here: they act in their console, and you find out by reading cromanion_grants or cromanion_config again. One request an hour, and a second from you replaces the first rather than stacking.

ParametersbodyrequiredtitlerequiredsiteId

cromanion_mark_read

Mark notifications read

Mark notifications read once you have passed them on to your human. cromanion_pending returns the unread ones and nothing cleared them, so the queue grew for ever and you re-read the same items on every poll. Send a notificationId for one, or nothing to clear them all. Needs the decisions permission.

ParameterssiteIdnotificationId

cromanion_impact

Read measured lift against the holdout

What the agent has actually changed: visitors who saw it versus the 10% held back as a control. Read `liftStatus` before reporting anything — `learn` means nothing has been shown yet and `insufficient` means the arms are too small to tell signal from noise. Neither is 'no lift'.

ParameterssiteId

cromanion_visits

List visits

List your human's recent visits — each with its pages, how it ended, what Cromanion's agent showed or held back, the doubts it read, and the start of the visit's story. Filter by page, outcome, doubt, device, channel and more; page through with `next`. Needs the visits permission, which only your human can give in their console. Everything under `reading` is Cromanion's interpretation, not something the visitor said — report it that way. A visit is readable in full about 30 minutes after the visitor leaves; for who is on the site right now use cromanion_live. The control group is never read, so a doubt filter contains no control visits. Shares a budget of 60 calls an hour with cromanion_visit; every call is on your human's record before it runs. Identifiers in paths are masked (`:id`, `:token`), so products addressed by a number or a code are indistinguishable to a page filter.

ParameterspagelimitsinceuntilcursordevicesiteIdchanneloutcomevisitorobjectionpopulation+1 more

cromanion_visit

Read one visit

One visit in full: the story of each page load, every moment Cromanion's agent looked at the visitor and what it decided, what the visitor actually saw, and the doubts it read. Pass the `visitId` from cromanion_visits, or a `sessionId` from cromanion_live once that visitor has left. Needs the visits permission. Readings sit under `reading`; a moment at or after the conversion carries `observed` instead, because the conversion is a fact. `shown.seen` is what the visitor's browser confirmed, not what was sent. Same 60-an-hour budget as cromanion_visits.

ParameterssiteIdvisitIdsessionId

cromanion_live

See who is on the site now

Who is on your human's site right now: each visitor's pages so far, what the agent showed them, and its current reading of them. Paid plans only (Pro and up) — on Free it is refused with the way to upgrade. Needs the visits permission. Poll at most once a minute; this has its own budget, separate from the history tools. Bots are judged when a visit ends, so a robot not yet recognised can appear here as a person.

ParameterssiteIdpopulation

cromanion_set_mode

Take the site live, or back to learning

Switch the agent on. `learn` watches and shows visitors nothing; `act` lets it intervene in your human's name. `customizeMode` is a separate axis for rewriting their own page copy: `off`, `shadow` (propose only) or `live`. Needs the activation permission.

ParametersmodesiteIdcustomizeMode

cromanion_add_goal

Define a conversion to count

Define a conversion to count, or change one you already defined. This is not one more setting: it is the numerator of every impact figure your human will read, so a goal that fires on every pageview makes the agent look brilliant and tells them nothing. Send `type` and `value` to create — idempotent, the same matcher twice creates one goal. Send `goalId` instead to rename, reprioritise or price an existing one, or with `remove: true` to stop counting it. Needs the goals permission.

ParameterstypelabelvaluegoalIdremovesiteIdprioritydollarValue

cromanion_crawl

Re-read the site, priority pages first

Re-read the site, and name the pages that matter most so they are read first. You know this site's structure better than its owner does — seeding it is the cheapest real improvement to what the agent understands. Rate-limited: one crawl per 30 minutes. Needs the site-config permission.

ParameterssiteIdpriorityUrls

cromanion_add_site

Add another site to the account

Add another of your human's sites to their account, on a plan that allows more than one. Reaching a site they already own needs no proof — they added it. CREATING one does: nothing about holding a credential for one domain says anything about another, so publish this claim's challenge on the new domain first, the same three ways that proved the first. Refused if your human restricted this credential to specific sites: a list they set should not grow by your action — use cromanion_ask_human. Needs the site-config permission.

ParameterssiteIdsiteUrlrequired

cromanion_claim_domain

Claim another host, or give one up

Claim another host for this site so its traffic counts, or give one up with `remove: true`. A DIFFERENT registrable domain must be proven on its own — publish this claim's challenge there too, then call again. Subdomains need no call at all: a claimed domain already covers them. Needs the site-config permission.

ParametersdomainrequiredremovesiteId

cromanion_set_voice

Replace the facts the agent may state

Write the facts the agent may state to visitors, and the things it must never say. Plain sentences, one idea per line; start a line with 'never' to forbid something. Anything you write that your human's own pages do not already state is attributed to THEM as the source — so write only what they have told you is true. Every rule is checked against your own text and the site's vocabulary, and anything ungrounded is silently dropped: read the returned `lines` to see what actually survived. Your human sees each line attributed to you. Needs the voice permission.

ParameterstextrequiredsiteId

cromanion_set_surfaces

Set where the agent may speak, and how it looks

Choose where the agent may speak and what those places look like: which layout surfaces are enabled, whether the exit modal is allowed, custom CSS, and per-surface HTML. Markup and CSS are re-checked against an allowlist on every visitor — anything that could run, or fetch a remote resource, is silently removed, so compare what comes back with what you sent. Needs the surfaces permission.

ParameterssiteIdenabledcustomCsstemplatesallowModal

cromanion_set_holdout

Change the share of visitors held back

Set the share of visitors held back from the agent so its effect stays measurable (0.05–0.5). Changing it splits the measurement window: periods either side are compared separately and never pooled. Needs the measurement permission.

ParameterssharerequiredsiteId

cromanion_set_exclusions

Put an excluded device back into the measurement

Put an excluded device back into the measurement. Your human can mark their own devices as "not a real visitor" so their browsing does not count; this removes one of those marks, by the label they gave it. You cannot ADD an exclusion — that names the caller's own browser, which you do not have. Needs the measurement permission.

ParameterslabelrequiredsiteId

cromanion_set_brand

Adjust the palette, fonts and button styling

Adjust the palette, fonts and button styling the agent paints its surfaces with. The crawl guesses these from a stylesheet; you probably know the real tokens. Cosmetic only — it changes how the agent looks, never what it may say. Needs the brand permission.

ParameterscolorssiteIdctaFillctaTextbodyFontctaRadiusheadingFont

cromanion_set_lead_destination

Set where captured leads are delivered

Set where captured leads are delivered: an https webhook, a connected HubSpot portal, or off. Note before you use it: this is the one change that leaves no other trace — forms keep working and visitors keep being thanked while the addresses go somewhere new — so every change emails your human and appears on their notifications screen. Needs the integrations permission.

ParameterskindrequiredsiteIdtarget

cromanion_disconnect_hubspot

Disconnect the account's HubSpot portal

Sever the account's HubSpot connection. The other half of cromanion_set_lead_destination's `hubspot` option: you can point leads at a CRM, so you can take them back out. Refused while any site on the account still delivers there — change those destinations first, or the forms would keep working while every lead failed delivery. Reconnecting is NOT a tool: it is an OAuth consent screen only your human can click, so treat this as one-way and say so before you call it. Needs the integrations permission.

ParameterssiteId

Version history

1
  1. v0.7.0LatestSep 16, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.