// MCP TOKEN COST

The Lxwl MCP server costs 56,393 tokens before the first call.

Every request your agent makes carries every tool definition this server exposes — context your code, documents and conversation can't use, mostly for tools the agent never calls. You don't need them all in the window, and you don't have to pay for them.

QUICK ANSWER The Lxwl MCP server's 236 tool definitions consume 56,393 tokens — 28% of a 200k context window, and 30× the median MCP server (1,905 tokens). A scoped grant exposing only the tools you use cuts that roughly in proportion.

MEASURED FROM SCHEMAS tiktoken o200k_base · rank #35 of 8,377 measured servers · refreshed every build Method →

// CONTEXT WINDOW SHARE

What that costs before your agent starts working.

Tool definitions are overhead: they occupy context on every request and compete with your code, documents and conversation history for the same window.

200K WINDOW 28%

1M WINDOW 5.6%

Corpus context: Lxwl ranks #35 of 8,377 measured MCP servers by definition cost. The median is 1,905 tokens, p90 is 12,638, and the heaviest (Ainumbers Mcp Apps) is 327,608 — 164% of a 200k window on its own. New to this? See MCP token cost and context window in the glossary.

Token cost is one axis. See the risk picture across your whole stack →

// PER-TOOL BREAKDOWN

Where the 56,393 tokens go.

Each row is one tool definition as a tools/list entry — name, description and input schema — counted with o200k_base. Average: 239 tokens per tool.

Tool	Category	Tokens	% of server
onloon-crm-customer-management__filterCompanies	Read	3,343	5.9%
onloon-crm-customer-management__saveScene	Write	3,268	5.8%
onloon-crm-contact__filterContacts	Read	3,104	5.5%
onloon-crm-contact__saveScene	Write	3,073	5.4%
onloon-crm-order__createOrder	Write	1,709	3.0%
onloon-crm-order__createQuotation	Write	1,648	2.9%
onloon-crm-contact__createContact	Write	1,346	2.4%
onloon-crm-customer-management__createContact	Write	1,298	2.3%
onloon-crm-customer-management__createCompany	Write	1,158	2.1%
onloon-crm-customer-management__updateCompany	Write	1,007	1.8%
onloon-customer-dev-marketing__submitMarketingTask	Write	954	1.7%
onloon-crm-customer-management__updateContact	Write	904	1.6%
onloon-crm-contact__updateContact	Write	903	1.6%
onloon-product__updateProduct	Write	902	1.6%
onloon-normal-mail__replyMessage	Read	880	1.6%
onloon-product__createProduct	Write	878	1.6%
onloon-normal-mail__scheduleMessage	Write	832	1.5%
onloon-normal-mail__forwardMessage	Read	821	1.5%
onloon-crm-contact__checkDuplicates	Read	817	1.4%
onloon-normal-mail__sendMessage	Write	791	1.4%
onloon-normal-mail__saveDraft	Write	788	1.4%
onloon-social-chat-send__sendMessage	Write	625	1.1%
onloon-social__schedulePost	Write	585	1.0%
onloon-customer-dev-marketing__createTask	Write	525	0.9%
onloon-xl-decorate__decorate	Write	524	0.9%
onloon-xl-blog__updateBlog	Write	448	0.8%
onloon-explore-customs-data__listMerchants	Read	433	0.8%
onloon-xl-blog__createBlog	Write	424	0.8%
onloon-xl-blog__createBlogGroup	Write	407	0.7%
onloon-xl-blog__updateBlogGroup	Write	394	0.7%
onloon-crm-contact__listActivities	Read	363	0.6%
onloon-explore-customs-data__runOperation	Read	332	0.6%
onloon-crm-order__createProduct	Write	325	0.6%
onloon-file-upload__formatMailAttachments	Write	322	0.6%
onloon-xl-blog__getBlogGroup	Read	306	0.5%
onloon-xl-blog__listBlogGroups	Read	301	0.5%
onloon-xl-decorate__addComponent	Write	288	0.5%
onloon-crm-contact__listTags	Read	279	0.5%
onloon-customer-dev__writeCandidate	Write	279	0.5%
onloon-crm-contact__aggregateContacts	Read	260	0.5%
onloon-explore-customs-data__searchAdvancedRecords	Read	242	0.4%
onloon-crm-customer-management__listTags	Read	240	0.4%
onloon-social-chat__listContacts	Read	231	0.4%
onloon-crm-customer-management__searchCompanies	Read	230	0.4%
onloon-social-chat__searchContacts	Read	223	0.4%
onloon-crm-contact__searchContacts	Read	206	0.4%
onloon-crm-contact__listAuditEvents	Read	204	0.4%
onloon-social-chat__searchMessages	Read	204	0.4%
onloon-social-chat__listWaContactsAllBinds	Read	201	0.4%
onloon-crm-contact__listSceneUsers	Read	200	0.4%
onloon-crm-contact__listFollowups	Read	197	0.3%
onloon-crm-contact__listContacts	Read	196	0.3%
onloon-mail-marketing__createAndSend	Write	187	0.3%
onloon-explore-customs-data__getMerchantTradeProfile	Read	180	0.3%
onloon-crm-customer-management__listCompanies	Read	179	0.3%
onloon-crm-order__createQuickQuotation	Write	179	0.3%
onloon-crm-customer-management__transferCustomerPool	Financial	178	0.3%
onloon-crm-contact__listCountries	Read	176	0.3%
onloon-crm-customer-management__listActivities	Read	175	0.3%
onloon-product__createProductGroup	Write	175	0.3%
onloon-crm-customer-management__listCommunications	Read	173	0.3%
onloon-crm-customer-management__runScene	Execute	170	0.3%
onloon-mail-marketing__createDraft	Write	165	0.3%
onloon-crm-customer-management__recordFollowup	Write	164	0.3%
onloon-crm-customer-management__listSceneUsers	Read	163	0.3%
onloon-social-chat__listWaBindAccounts	Read	161	0.3%
onloon-product__updateProductGroup	Write	161	0.3%
onloon-crm-contact__transferContactPool	Financial	157	0.3%
onloon-social-chat-send__querySendStatus	Write	144	0.3%
onloon-crm-customer-management__listCountries	Read	142	0.3%
onloon-crm-order__createQuickOrder	Write	137	0.2%
onloon-crm-contact__listCommunications	Read	136	0.2%
onloon-normal-mail__distributeMessages	Read	136	0.2%
onloon-social-chat__listBindAccounts	Read	136	0.2%
onloon-crm-order__listOrderEnums	Read	135	0.2%
onloon-social-chat__listMessages	Read	134	0.2%
onloon-crm-order__saveQuickQuotation	Write	132	0.2%
onloon-social-chat__listRecentSessions	Read	131	0.2%
onloon-crm-order__saveQuickOrder	Write	131	0.2%
onloon-product__syncShopifyCollection	Read	127	0.2%
onloon-crm-contact__linkCompany	Read	126	0.2%
onloon-clue__listClues	Read	125	0.2%
onloon-crm-order__searchContacts	Read	121	0.2%
onloon-crm-customer-management__scheduleFollowup	Write	120	0.2%
onloon-customer-dev-marketing__editTask	Write	117	0.2%
onloon-customer-dev-customs__searchCompanies	Read	115	0.2%
onloon-social-chat__auditImportantSessions	Read	114	0.2%
onloon-crm-order__createTemplate	Write	109	0.2%
onloon-social-radar__addMonitoredGroup	Write	109	0.2%
onloon-crm-order__updateStatus	Write	108	0.2%
onloon-crm-order__saveTemplate	Write	107	0.2%
onloon-crm-contact__runScene	Execute	106	0.2%
onloon-customer-dev-whatsapp__searchCompanies	Read	106	0.2%
onloon-crm-contact__recordFollowup	Read	105	0.2%
onloon-normal-mail__extractSubjectContacts	Read	105	0.2%
onloon-customer-dev-marketing__updateTaskStatus	Write	105	0.2%
onloon-normal-mail__listMessages	Read	104	0.2%
onloon-social-radar__searchFacebookCompanies	Read	104	0.2%
onloon-xl-blog__listBlogs	Read	104	0.2%
onloon-social__listPosts	Read	103	0.2%
onloon-crm-contact__listTypes	Read	101	0.2%
onloon-mail-marketing__listReceivers	Read	101	0.2%
onloon-explore-customs-data__searchGlobal	Read	100	0.2%
onloon-crm-contact__listFieldConfig	Read	99	0.2%
onloon-crm-contact__listSceneStaticOptions	Read	98	0.2%
onloon-social-chat__listMessageParticipants	Read	98	0.2%
onloon-customer-dev-enterprise__searchCompanies	Read	97	0.2%
onloon-customer-dev-global-engine__searchCompanies	Read	97	0.2%
onloon-crm-order__uploadQuickQuotation	Write	93	0.2%
onloon-normal-mail__markMessages	Write	93	0.2%
onloon-product__listProducts	Read	92	0.2%
onloon-social-radar__addMonitoredHomepage	Write	92	0.2%
onloon-xl-decorate__saveSourcecodeFile	Write	92	0.2%
onloon-customer-dev-canton-fair__searchCompanies	Read	91	0.2%
onloon-crm-order__listQuotations	Read	90	0.2%
onloon-customer-dev-kp__searchCompanies	Read	90	0.2%
onloon-explore-customs-data__getCustomsRecord	Read	90	0.2%
onloon-crm-customer-management__aggregateCompanies	Read	89	0.2%
onloon-crm-customer-management__listSceneStaticOptions	Read	89	0.2%
onloon-customer-dev__preflightOutreach	Read	89	0.2%
onloon-crm-order__linkQuick	Read	88	0.2%
onloon-crm-order__uploadQuickOrder	Write	88	0.2%
onloon-file-upload__uploadFromUrl	Write	88	0.2%
onloon-crm-order__listOrders	Read	87	0.2%
onloon-normal-mail__getCorrespondence	Read	87	0.2%
onloon-customer-dev-marketing__listTasks	Read	86	0.2%
onloon-xl-decorate__downloadSourcecode	Read	86	0.2%
onloon-crm-customer-management__listAuditEvents	Read	85	0.2%
onloon-social__listChannels	Read	84	0.1%
onloon-file-upload__uploadImage	Write	84	0.1%
onloon-account__getAccountInfo	Read	83	0.1%
onloon-xl-decorate__installTheme	Write	83	0.1%
onloon-customer-dev-b2c__buildSearchQuery	Execute	82	0.1%
onloon-crm-order__listTemplates	Read	82	0.1%
onloon-mail-marketing__getOverallStats	Read	82	0.1%
onloon-crm-order__getDetail	Read	80	0.1%
onloon-customer-dev-b2c__enrichCompany	Read	80	0.1%
onloon-xl-blog__listTags	Read	80	0.1%
onloon-crm-customer-management__listGroups	Read	79	0.1%
onloon-customer-dev-customs__enrichCompany	Read	79	0.1%
onloon-customer-dev-b2b__crawlPage	Read	77	0.1%
onloon-customer-dev-b2c__crawlPage	Read	77	0.1%
onloon-customer-dev__initSession	Read	76	0.1%
onloon-customer-dev__validateWorkspace	Read	76	0.1%
onloon-product__getProduct	Read	76	0.1%
onloon-xl-decorate__ensureTheme	Read	75	0.1%
onloon-social-radar__listGroupPosts	Read	74	0.1%
onloon-crm-contact__listScenes	Read	73	0.1%
onloon-customer-dev-marketing__listPersons	Read	73	0.1%
onloon-customer-dev-b2b__buildSearchQuery	Execute	72	0.1%
onloon-customer-dev-enquiry__enrichCompany	Read	72	0.1%
onloon-customer-dev__listSessions	Read	72	0.1%
onloon-customer-dev-marketing__listCompanies	Read	72	0.1%
onloon-social-radar__listHomepagePosts	Read	72	0.1%
onloon-xl-decorate__getSetting	Read	72	0.1%
onloon-product__publishProduct	Write	72	0.1%
onloon-crm-customer-management__listProducts	Read	71	0.1%
onloon-crm-customer-management__listTypes	Read	71	0.1%
onloon-mail-marketing__listCampaigns	Read	71	0.1%
onloon-normal-mail__auditCustomerPending	Read	71	0.1%
onloon-xl-blog__getBlog	Read	71	0.1%
onloon-crm-customer-management__listStages	Read	70	0.1%
onloon-customer-dev-kp__enrichCompany	Read	70	0.1%
onloon-customer-dev-whatsapp__enrichCompany	Read	70	0.1%
onloon-xl-decorate__analyzeTheme	Read	70	0.1%
onloon-xl-decorate__listShops	Read	70	0.1%
onloon-crm-customer-management__listFieldConfig	Read	69	0.1%
onloon-crm-customer-management__listFollowups	Read	69	0.1%
onloon-customer-dev-b2b__enrichCompany	Read	68	0.1%
onloon-xl-decorate__getSourcecodeFile	Read	68	0.1%
onloon-crm-order__listProducts	Read	67	0.1%
onloon-mail-marketing__getCampaignReport	Read	67	0.1%
onloon-xl-decorate__publish	Write	67	0.1%
onloon-crm-order__getTradeInfo	Read	66	0.1%
onloon-xl-decorate__listSourcecode	Read	66	0.1%
onloon-crm-contact__scheduleFollowup	Write	66	0.1%
onloon-crm-customer-management__listBusinessStages	Read	65	0.1%
onloon-crm-order__listCurrencies	Read	65	0.1%
onloon-normal-mail__peekMessage	Read	65	0.1%
onloon-product__getProductGroup	Read	65	0.1%
onloon-social-radar__listMonitoredHomepages	Read	65	0.1%
onloon-file-upload__uploadDedupSimple	Write	65	0.1%
onloon-file-upload__uploadFile	Write	65	0.1%
onloon-crm-customer-management__listSources	Read	64	0.1%
onloon-customer-dev-canton-fair__enrichCompany	Read	63	0.1%
onloon-customer-dev-enquiry__searchCompanies	Read	63	0.1%
onloon-normal-mail__listMailUsers	Read	62	0.1%
onloon-xl-decorate__getPage	Read	62	0.1%
onloon-xl-decorate__listThemeTemplates	Read	62	0.1%
onloon-file-upload__uploadPart	Write	62	0.1%
onloon-customer-dev-enterprise__enrichCompany	Read	61	0.1%
onloon-normal-mail__verifyScheduleTime	Read	61	0.1%
onloon-social-radar__addGroupKeyword	Write	61	0.1%
onloon-social-radar__addHomepageKeyword	Write	60	0.1%
onloon-xl-decorate__openSourcecode	Write	60	0.1%
onloon-crm-contact__getContact	Read	59	0.1%
onloon-crm-customer-management__listBusinessCurrencies	Read	59	0.1%
onloon-customer-dev-global-engine__enrichCompany	Read	59	0.1%
onloon-product__inspectImportLinks	Read	59	0.1%
onloon-xl-decorate__listThemes	Read	59	0.1%
onloon-file-upload__uploadSocialChat	Write	59	0.1%
onloon-crm-contact__listProducts	Read	58	0.1%
onloon-customer-dev-marketing__getTask	Read	58	0.1%
onloon-product__listProductGroups	Read	58	0.1%
onloon-crm-customer-management__listScenes	Read	57	0.1%
onloon-customer-dev-marketing__listSources	Read	57	0.1%
onloon-normal-mail__listMailboxes	Read	57	0.1%
onloon-social-radar__listGroupComments	Read	57	0.1%
onloon-crm-customer-management__getContact	Read	56	0.1%
onloon-social-radar__listHomepageComments	Read	56	0.1%
onloon-clue__getClue	Read	55	0.1%
onloon-clue__claimClue	Read	54	0.1%
onloon-xl-decorate__listComponents	Read	53	0.1%
onloon-crm-contact__listGroups	Read	52	0.1%
onloon-mail-marketing__listSenderMails	Read	52	0.1%
onloon-crm-contact__listBusinessCurrencies	Read	51	0.1%
onloon-product__listProductUnits	Read	51	0.1%
onloon-xl-decorate__preview	Read	51	0.1%
onloon-file-upload__uploadBatch	Write	51	0.1%
onloon-normal-mail__listBusinessQueues	Read	50	0.1%
onloon-mail-marketing__getAccount	Read	49	0.1%
onloon-mail-marketing__getCampaign	Read	49	0.1%
onloon-crm-contact__listStages	Read	46	0.1%
onloon-social__listScheduled	Read	45	0.1%
onloon-social-radar__listGroupKeywords	Read	45	0.1%
onloon-crm-contact__listSources	Read	44	0.1%
onloon-normal-mail__searchMessages	Read	44	0.1%
onloon-social-radar__listHomepageKeywords	Read	44	0.1%
onloon-social-radar__listRecommendHomepages	Read	44	0.1%
onloon-normal-mail__listSignatures	Read	43	0.1%
onloon-social-radar__listMonitoredGroups	Read	43	0.1%
onloon-crm-contact__listBusinessStages	Read	42	0.1%
onloon-social-chat__listChatFolders	Read	42	0.1%
onloon-social-chat__getContact	Read	41	0.1%
onloon-crm-customer-management__getCompany	Read	40	0.1%
onloon-product__listShops	Read	40	0.1%

// CUT THE COST

Your agent uses a handful of these tools. It pays for all 236.

You don't need all 236 of those definitions in the window. PolicyLayer is an MCP gateway that sits in front of Lxwl: only the tools you grant are exposed to the agent, the rest never load. A smaller window means a sharper agent — less noise when it picks a tool — and every request costs less:

Grant scope	Definition cost	Reduction
All 236 tools (no gateway)	56,393 tokens	—
3 granted tools	~717 tokens	−99%
5 granted tools	~1,195 tokens	−98%
10 granted tools	~2,390 tokens	−96%

The risk dividend: 2 of these 236 tools are critical-risk (destructive or financial) and cost 335 tokens (1% of the definition load). Block them — the recommended starter policy — and you reclaim that context before tuning anything else.

Create a free account and register Lxwl — nothing to install.
Grant only the tools you use — ungranted definitions never enter the context window.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CUT LXWL TOKEN COST →

Instant setup, no code required.

Model your own stack in the token-cost calculator, or see the Lxwl policy for what a sensible grant looks like.

//FAQ

Lxwl token-cost questions.

How many tokens does the Lxwl MCP server use?+

Its 236 tool definitions total 56,393 tokens — 28% of a 200k context window — measured with tiktoken o200k_base over the serialised tools/list payload. Exact counts vary slightly by client and model.

Why does Lxwl consume tokens before I send a message?+

MCP clients load every connected server's tool definitions — name, description, and input schema — into the model's context so it knows what it can call. That payload is charged against your context window on every request, whether or not a tool is used.

How do I reduce Lxwl's token usage?+

Expose fewer tools. A PolicyLayer grant scopes Lxwl to only the tools you allow — ungranted definitions are filtered out of the tool list, so they never enter the context window. A grant of 3 typical tools costs roughly 717 tokens, a 99% reduction.

Does deferred tool loading fix this?+

Partially, in some clients. Claude Code defers MCP tool schemas behind a tool-search step by default, and VS Code has experimental grouping — but you still pay tokens per search and reload, and Cursor, Windsurf and Gemini CLI load definitions upfront. Reducing the exposed tool set cuts the cost in every client.

// METHOD & REVIEW

How these numbers were measured.

01

Serialisation

Each tool is serialised as a tools/list entry — name, description, input schema — from the schemas in the PolicyLayer scan database. Clients differ slightly in framing, so treat counts as close estimates.

02

Tokeniser

tiktoken o200k_base (GPT-4o/o-series). Anthropic's current tokeniser isn't published, so Claude's exact counts will differ; for English text and JSON schemas the totals are close enough to treat these as estimates.

03

Deferred loading

Some clients now defer schema loading (Claude Code's tool search; VS Code experimental grouping). You still pay per search and reload — and Cursor, Windsurf and Gemini CLI load everything upfront.

Computed 06-09-2026 from the PolicyLayer scan database over all 236 catalogued Lxwl tools. Counts refresh with every site build.