// MCP TOKEN COST

The Mcp Erpnext MCP server costs 14,090 tokens before the first call.

Connect Mcp Erpnext and its 120 tool definitions are loaded into the model's context on every request — 7.0% of a 200k window spent before your agent does anything.

QUICK ANSWER The Mcp Erpnext MCP server's tool definitions consume 14,090 tokens — 7.4× the median MCP server (1,905 tokens). A scoped grant exposing only the tools you use cuts that roughly in proportion.

MEASURED FROM SCHEMAS 120 tools · 14,090 tokens · 7.0% of 200k · 1.4% of 1M Method →

// CONTEXT WINDOW SHARE

What that buys 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 7.0%

1M WINDOW 1.4%

Corpus context: Mcp Erpnext ranks #103 of 3,213 measured MCP servers by definition cost. The median is 1,905 tokens, p90 is 7,952, and the heaviest (Fusionauth) is 183,337 — 92% of a 200k window on its own.

// PER-TOOL BREAKDOWN

Where the 14,090 tokens go.

Each row is one tool definition as a tools/list entry — name, description and input schema — counted with o200k_base. Average: 117 tokens per tool.

Tool	Category	Tokens	% of server
erpnext_sales_invoice_create	Write	311	2.2%
erpnext_stock_entry_create	Write	311	2.2%
erpnext_sales_order_create	Write	295	2.1%
erpnext_quotation_create	Write	260	1.8%
erpnext_kanban_get_board	Read	247	1.8%
erpnext_doc_list	Read	228	1.6%
erpnext_journal_entry_create	Write	211	1.5%
erpnext_asset_create	Write	204	1.4%
erpnext_company_create	Write	182	1.3%
erpnext_expense_claim_create	Write	180	1.3%
erpnext_item_create	Write	174	1.2%
erpnext_task_update	Write	173	1.2%
erpnext_work_order_create	Write	171	1.2%
erpnext_task_create	Write	170	1.2%
erpnext_payment_entry_list	Read	169	1.2%
erpnext_delivery_note_create	Write	168	1.2%
erpnext_salary_slip_list	Read	167	1.2%
erpnext_stock_chart	Read	164	1.2%
erpnext_asset_list	Read	160	1.1%
erpnext_doc_update	Write	160	1.1%
erpnext_work_order_list	Read	159	1.1%
erpnext_purchase_invoice_list	Read	153	1.1%
erpnext_leave_application_create	Write	153	1.1%
erpnext_account_list	Read	152	1.1%
erpnext_purchase_order_create	Write	152	1.1%
erpnext_expense_claim_list	Read	150	1.1%
erpnext_attendance_list	Read	149	1.1%
erpnext_purchase_order_list	Read	148	1.1%
erpnext_sales_invoice_list	Read	148	1.1%
erpnext_task_list	Read	148	1.1%
erpnext_purchase_receipt_list	Read	147	1.0%
erpnext_lead_create	Write	147	1.0%
erpnext_revenue_trend	Write	147	1.0%
erpnext_shipment_list	Read	146	1.0%
erpnext_doc_create	Write	146	1.0%
erpnext_project_create	Write	146	1.0%
erpnext_sales_order_update	Write	145	1.0%
erpnext_sales_chart	Read	143	1.0%
erpnext_leave_application_list	Read	142	1.0%
erpnext_sales_order_list	Read	142	1.0%
erpnext_delivery_note_list	Read	141	1.0%
erpnext_stock_entry_list	Read	141	1.0%
erpnext_customer_create	Write	141	1.0%
erpnext_item_list	Read	138	1.0%
erpnext_supplier_create	Write	138	1.0%
erpnext_opportunity_list	Read	136	1.0%
erpnext_bom_list	Read	132	0.9%
erpnext_journal_entry_list	Read	131	0.9%
erpnext_order_breakdown	Read	131	0.9%
erpnext_job_card_list	Read	129	0.9%
erpnext_kanban_move_card	Write	129	0.9%
erpnext_employee_list	Read	128	0.9%
erpnext_doc_cancel	Destructive	127	0.9%
erpnext_doc_submit	Write	127	0.9%
erpnext_customer_update	Write	125	0.9%
erpnext_item_update	Write	124	0.9%
erpnext_lead_list	Read	118	0.8%
erpnext_supplier_list	Read	118	0.8%
erpnext_asset_movement_list	Read	117	0.8%
erpnext_ar_aging	Read	116	0.8%
erpnext_timesheet_list	Read	114	0.8%
erpnext_customer_list	Read	111	0.8%
erpnext_project_list	Read	111	0.8%
erpnext_profit_loss	Read	110	0.8%
erpnext_stock_balance	Read	110	0.8%
erpnext_asset_maintenance_list	Read	109	0.8%
erpnext_supplier_quotation_list	Read	108	0.8%
erpnext_quotation_list	Read	107	0.8%
erpnext_payroll_entry_list	Read	106	0.8%
erpnext_contact_list	Read	104	0.7%
erpnext_gross_profit	Read	102	0.7%
erpnext_doc_get	Read	98	0.7%
erpnext_stock_treemap	Read	97	0.7%
erpnext_doc_delete	Destructive	96	0.7%
erpnext_product_radar	Read	83	0.6%
erpnext_warehouse_list	Read	83	0.6%
erpnext_sales_invoice_submit	Write	81	0.6%
erpnext_leave_balance	Read	78	0.6%
erpnext_sales_funnel	Read	78	0.6%
erpnext_work_order_get	Read	77	0.5%
erpnext_bom_get	Read	75	0.5%
erpnext_purchase_receipt_get	Read	75	0.5%
erpnext_campaign_list	Read	74	0.5%
erpnext_delivery_note_get	Read	74	0.5%
erpnext_revenue_vs_orders	Read	74	0.5%
erpnext_salary_slip_get	Read	74	0.5%
erpnext_purchase_invoice_get	Read	72	0.5%
erpnext_sales_invoice_get	Read	72	0.5%
erpnext_sales_order_cancel	Destructive	71	0.5%
erpnext_employee_get	Read	70	0.5%
erpnext_journal_entry_get	Read	70	0.5%
erpnext_purchase_order_get	Read	70	0.5%
erpnext_sales_order_get	Read	70	0.5%
erpnext_sales_order_submit	Write	70	0.5%
erpnext_payment_entry_get	Read	69	0.5%
erpnext_price_vs_qty	Read	68	0.5%
erpnext_quotation_get	Read	64	0.5%
erpnext_stock_entry_get	Read	62	0.4%
erpnext_kpi_gross_margin	Read	60	0.4%
erpnext_task_get	Read	60	0.4%
erpnext_item_get	Read	59	0.4%
erpnext_job_card_get	Read	59	0.4%
erpnext_asset_maintenance_get	Read	58	0.4%
erpnext_asset_movement_get	Read	57	0.4%
erpnext_customer_get	Read	57	0.4%
erpnext_supplier_get	Read	57	0.4%
erpnext_asset_get	Read	56	0.4%
erpnext_lead_get	Read	56	0.4%
erpnext_opportunity_get	Read	56	0.4%
erpnext_company_list	Read	55	0.4%
erpnext_shipment_get	Read	54	0.4%
erpnext_timesheet_get	Read	54	0.4%
erpnext_kpi_overdue	Read	52	0.4%
erpnext_kpi_revenue	Read	52	0.4%
erpnext_contact_get	Read	51	0.4%
erpnext_kpi_outstanding	Read	51	0.4%
erpnext_leave_application_get	Read	50	0.4%
erpnext_project_get	Read	50	0.4%
erpnext_asset_category_list	Read	49	0.3%
erpnext_kpi_orders	Read	45	0.3%

// SCOPED GRANT

Most agents use a handful of these tools. They pay for all 120.

A PolicyLayer grant exposes only the tools you allow — ungranted definitions are filtered out of the tool list, so they never enter the context window. Estimates below assume typical-weight tools (117 tokens each).

Grant scope	Definition cost	Reduction
All 120 tools (no gateway)	14,090 tokens	—
3 granted tools	~352 tokens	−98%
5 granted tools	~587 tokens	−96%
10 granted tools	~1,174 tokens	−92%

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

//FAQ

Mcp Erpnext token-cost questions.

How many tokens does the Mcp Erpnext MCP server use?+

Its 120 tool definitions total 14,090 tokens — 7.0% 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 Mcp Erpnext 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 Mcp Erpnext's token usage?+

Expose fewer tools. A PolicyLayer grant scopes Mcp Erpnext 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 352 tokens, a 98% 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.

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.

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.

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 07-06-2026 from the PolicyLayer scan database over all 120 catalogued Mcp Erpnext tools. Counts refresh with every site build.

Expose only the tools you use — the rest never enter your context.

A PolicyLayer grant scopes Mcp Erpnext to the tools you actually allow. Ungranted definitions never load, and every call that does run is checked against policy first.

SCOPE YOUR GRANT →

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