// MCP TOKEN COST

The Platform MCP server costs 65,080 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 Platform MCP server's 275 tool definitions consume 65,080 tokens — 33% of a 200k context window, and 35× the median MCP server (1,866 tokens). A scoped grant exposing only the tools you use cuts that roughly in proportion.

MEASURED FROM SCHEMAS tiktoken o200k_base · rank #45 of 12,801 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 33%

1M WINDOW 6.5%

Corpus context: Platform ranks #45 of 12,801 measured MCP servers by definition cost. The median is 1,866 tokens, p90 is 13,646, and the heaviest (Ainumbers Mcp Apps) is 442,891 — 221% 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 65,080 tokens go.

Each row is one tool definition as a tools/list entry — name, description and input schema — counted with o200k_base. Average: 237 tokens per tool.

Tool	Category	Tokens	% of server
happ_assistant_update	Write	1,766	2.7%
happ_assistant_create	Write	1,393	2.1%
happ_test_case_create	Read	1,144	1.8%
happ_text_campaign_create	Write	1,033	1.6%
happ_crm_analyze	Read	876	1.3%
happ_auditor_profile_set	Write	869	1.3%
happ_conversations_list	Read	867	1.3%
happ_conversations_analyze	Read	808	1.2%
happ_social_comments_search	Read	777	1.2%
happ_analytics	Read	714	1.1%
happ_monitor_conversations	Read	706	1.1%
happ_test_case_update	Read	700	1.1%
happ_notification_rules_set	Write	681	1.0%
happ_crm_options_list	Read	680	1.0%
happ_crm_pull_source_create	Write	679	1.0%
happ_crm_analyze_estimate	Read	674	1.0%
happ_social_comments_stats	Read	667	1.0%
happ_sheets_pull_source_create	Write	654	1.0%
happ_chats_list	Read	646	1.0%
happ_crm_call_trigger_create	Execute	603	0.9%
happ_crm_pull_source_update	Write	581	0.9%
happ_text_campaign_update	Write	581	0.9%
happ_calls_list	Read	563	0.9%
happ_call_queue_create	Write	531	0.8%
happ_tool_create	Write	529	0.8%
happ_sheets_pull_source_update	Write	522	0.8%
happ_crm_deals_list	Read	518	0.8%
happ_assistant_integration_settings_update	Write	512	0.8%
happ_knowledge_create	Write	503	0.8%
happ_report_order	Read	482	0.7%
happ_tool_update	Write	482	0.7%
happ_knowledge_update	Write	460	0.7%
happ_crm_leads_list	Read	455	0.7%
happ_store_logs	Read	454	0.7%
happ_conversations_analyze_estimate	Read	447	0.7%
happ_sheets_pull_preview	Read	442	0.7%
happ_call_queue_update	Write	427	0.7%
happ_assistant_prompt_edit	Write	411	0.6%
happ_support_request	Read	409	0.6%
happ_crm_pull_preview	Read	385	0.6%
happ_widget_customize	Read	384	0.6%
happ_chat_ai_settings_set	Write	376	0.6%
happ_crm_catalog_resync	Read	374	0.6%
happ_report_schedule_set	Write	370	0.6%
happ_crm_lead_create	Write	362	0.6%
happ_test_settings_update	Read	361	0.6%
happ_crm_sync_enable	Write	359	0.6%
happ_call_originate	Read	352	0.5%
happ_test_media_upload	Read	348	0.5%
happ_crm_stats	Read	334	0.5%
happ_slack_push_link_create	Write	327	0.5%
happ_telegram_push_link_create	Write	322	0.5%
happ_social_posts_list	Read	321	0.5%
happ_widget_connect	Write	315	0.5%
happ_crm_lead_update	Write	312	0.5%
happ_integration_sync	Read	309	0.5%
happ_crm_call_trigger_update	Execute	307	0.5%
happ_permissions_set	Write	296	0.5%
happ_crm_deal_update	Write	295	0.5%
happ_assistant_commit	Write	294	0.5%
happ_assistant_integration_settings_get	Read	288	0.4%
happ_text_campaign_image_upload	Write	285	0.4%
happ_crm_contacts_search	Read	281	0.4%
happ_monitor_create	Read	279	0.4%
happ_crm_deal_create	Write	279	0.4%
happ_assistant_draft_promote	Write	278	0.4%
happ_activity_list	Read	275	0.4%
happ_quick_reply_create	Write	269	0.4%
happ_assistant_llm_key_set	Write	267	0.4%
happ_assistant_settings_catalog	Read	264	0.4%
happ_test_run_start	Read	264	0.4%
happ_phone_create	Write	259	0.4%
happ_slack_push_link_update	Write	258	0.4%
happ_telegram_push_link_update	Write	256	0.4%
happ_slack_push_destinations_set	Write	255	0.4%
happ_assistant_draft_create	Write	253	0.4%
happ_text_campaign_add_recipients	Write	253	0.4%
happ_telegram_push_destinations_set	Write	251	0.4%
happ_assistant_version_restore	Write	249	0.4%
happ_message_style_create	Write	246	0.4%
happ_report_estimate	Read	243	0.4%
happ_assistant_copy	Write	242	0.4%
happ_crm_activities_list	Read	241	0.4%
happ_crm_pull_setup	Write	240	0.4%
happ_crm_contact_get	Read	239	0.4%
happ_social_comments_list	Read	239	0.4%
happ_assistant_version_diff	Read	238	0.4%
happ_telephony_connect	Write	236	0.4%
happ_integrations_catalog	Read	226	0.3%
happ_integration_update	Write	217	0.3%
happ_widget_embed_code	Read	205	0.3%
happ_sheets_pull_inspect	Read	203	0.3%
happ_crm_contact_create	Write	203	0.3%
happ_call_queue_add_numbers	Write	201	0.3%
happ_phone_update	Write	200	0.3%
happ_assistant_integrations_list	Read	198	0.3%
happ_crm_call_trigger_setup	Execute	197	0.3%
happ_filters_describe	Read	197	0.3%
happ_platform_guide	Read	196	0.3%
happ_integrations_list	Read	195	0.3%
happ_quick_reply_update	Write	194	0.3%
happ_playground_send	Write	191	0.3%
happ_analyses_list	Read	190	0.3%
happ_crm_schema	Read	189	0.3%
happ_message_style_update	Write	185	0.3%
happ_text_campaign_start	Execute	183	0.3%
happ_llm_models_list	Read	182	0.3%
happ_crm_note_add	Write	182	0.3%
happ_assistant_templates_list	Read	181	0.3%
happ_analysis_job_get	Read	179	0.3%
happ_assistant_integration_bind	Read	179	0.3%
happ_assistant_versions_list	Read	178	0.3%
happ_call_queues_list	Read	178	0.3%
happ_whatsapp_status	Read	178	0.3%
happ_notification_preferences_set	Write	178	0.3%
happ_integration_next_steps	Read	177	0.3%
happ_social_comment_reply	Write	176	0.3%
happ_analysis_run	Execute	175	0.3%
happ_widget_update	Write	175	0.3%
happ_llm_key_models_list	Read	174	0.3%
happ_test_cases_generate	Read	172	0.3%
happ_directhub_templates_list	Read	171	0.3%
happ_test_run_estimate	Read	171	0.3%
happ_slack_push_link_rotate	Write	166	0.3%
happ_telegram_push_link_rotate	Write	165	0.3%
happ_notification_channel_mute	Destructive	164	0.3%
happ_monitor_templates_list	Read	163	0.3%
happ_slack_push_connect_url	Write	163	0.3%
happ_notification_rules_get	Read	161	0.2%
happ_sheets_pull_sources_list	Read	161	0.2%
happ_test_suggest_prompt_fix	Read	160	0.2%
happ_assistants_list	Read	159	0.2%
happ_text_campaign_recipients	Read	159	0.2%
happ_chat_ai_settings_get	Read	158	0.2%
happ_crm_call_triggers_list	Read	158	0.2%
happ_voices_list	Read	157	0.2%
happ_auditor_profile_get	Read	156	0.2%
happ_crm_pull_sources_list	Read	156	0.2%
happ_integration_webhook_events	Read	154	0.2%
happ_report_templates	Read	153	0.2%
happ_text_campaign_resume	Write	153	0.2%
happ_social_comment_mode	Write	152	0.2%
happ_voice_providers_list	Read	151	0.2%
happ_notification_digests_list	Read	150	0.2%
happ_call_reply_split	Read	149	0.2%
happ_slack_push_link_delete	Write	149	0.2%
happ_monitor_update	Read	148	0.2%
happ_telegram_push_link_delete	Write	148	0.2%
happ_subscription_get	Read	147	0.2%
happ_call_reply_update	Write	147	0.2%
happ_folder_create	Write	147	0.2%
happ_integration_webhook_event_get	Read	145	0.2%
happ_chat_assign_assistant	Write	142	0.2%
happ_slack_push_links_list	Write	142	0.2%
happ_tool_logs	Read	141	0.2%
happ_folder_move_assistant	Write	140	0.2%
happ_auditor_chat_audits	Read	139	0.2%
happ_call_queue_numbers	Read	138	0.2%
happ_zoho_watch_renew	Read	138	0.2%
happ_text_campaigns_list	Read	137	0.2%
happ_integration_webhook_token_rotate	Read	136	0.2%
happ_company_invite_user	Write	136	0.2%
happ_social_comment_get	Write	136	0.2%
happ_chat_messages	Read	134	0.2%
happ_social_post_update	Write	134	0.2%
happ_billing_overview	Read	133	0.2%
happ_tariffs_list	Read	133	0.2%
happ_text_campaign_get	Read	133	0.2%
happ_profile_phone_set	Write	133	0.2%
happ_quick_replies_list	Read	132	0.2%
happ_assistant_drafts_list	Read	131	0.2%
happ_assistant_transfer	Financial	130	0.2%
happ_sheets_pull_setup	Write	130	0.2%
happ_text_campaign_cancel	Destructive	129	0.2%
happ_billing_credits_history	Read	129	0.2%
happ_report_share	Read	128	0.2%
happ_company_update	Write	128	0.2%
happ_telegram_push_destinations	Write	128	0.2%
happ_crm_sync_status	Read	127	0.2%
happ_integration_get	Read	127	0.2%
happ_chat_send_message	Write	126	0.2%
happ_text_llm_models_list	Read	124	0.2%
happ_access_token_create	Write	124	0.2%
happ_crm_pull_source_run	Execute	122	0.2%
happ_sheets_pull_source_run	Execute	122	0.2%
happ_chat_toggle_ai	Read	122	0.2%
happ_test_run_results	Read	122	0.2%
happ_telegram_bot_connect	Write	122	0.2%
happ_invoices_list	Read	121	0.2%
happ_folder_update	Write	121	0.2%
happ_slack_push_destinations	Write	121	0.2%
happ_crm_analysis_job_get	Read	120	0.2%
happ_crm_sync_resync	Read	120	0.2%
happ_morning_brief_preview	Read	120	0.2%
happ_phones_list	Read	120	0.2%
happ_telegram_push_connect	Write	120	0.2%
happ_crm_pull_source_pause	Read	118	0.2%
happ_message_styles_list	Read	118	0.2%
happ_text_campaign_pause	Read	118	0.2%
happ_sheets_pull_source_resume	Write	118	0.2%
happ_telegram_push_links_list	Write	118	0.2%
happ_assistant_delete	Destructive	117	0.2%
happ_test_settings_get	Read	117	0.2%
happ_knowledge_list	Read	116	0.2%
happ_sheets_pull_source_pause	Read	116	0.2%
happ_login	Execute	116	0.2%
happ_company_members_list	Read	115	0.2%
happ_chat_assign_manager	Write	115	0.2%
happ_reports_list	Read	114	0.2%
happ_company_invitations_list	Read	112	0.2%
happ_call_reply_delete	Destructive	111	0.2%
happ_playground_start	Execute	111	0.2%
happ_crm_pull_source_resume	Write	111	0.2%
happ_call_replies_swap_speakers	Read	110	0.2%
happ_permissions_list	Read	110	0.2%
happ_call_queue_start	Execute	109	0.2%
happ_call_assign_manager	Write	109	0.2%
happ_whatsapp_connect	Write	109	0.2%
happ_company_remove_user	Destructive	108	0.2%
happ_assistant_get	Read	108	0.2%
happ_phone_attach	Write	108	0.2%
happ_access_token_revoke	Destructive	107	0.2%
happ_integration_delete	Destructive	107	0.2%
happ_notification_preferences_get	Read	106	0.2%
happ_report_cancel	Destructive	105	0.2%
happ_chat_sessions	Read	105	0.2%
happ_test_run_get	Read	105	0.2%
happ_company_create	Write	104	0.2%
happ_assistant_integration_unbind	Destructive	103	0.2%
happ_test_runs_list	Read	102	0.2%
happ_quick_reply_folder_create	Write	101	0.2%
happ_access_tokens_list	Read	100	0.2%
happ_payments_list	Read	100	0.2%
happ_report_get	Read	100	0.2%
happ_monitors_list	Read	99	0.2%
happ_crm_pull_source_delete	Destructive	98	0.2%
happ_call_queue_pause	Read	98	0.2%
happ_chat_get	Read	98	0.2%
happ_report_schedules_list	Read	98	0.2%
happ_tools_list	Read	98	0.2%
happ_call_queue_get	Read	97	0.1%
happ_sheets_pull_source_delete	Destructive	96	0.1%
happ_crm_call_trigger_delete	Execute	96	0.1%
happ_me	Read	96	0.1%
happ_test_case_delete	Destructive	96	0.1%
happ_call_queue_cancel	Destructive	94	0.1%
happ_report_schedule_delete	Write	92	0.1%
happ_call_queue_resume	Write	91	0.1%
happ_call_queue_delete	Destructive	90	0.1%
happ_call_retranscribe	Read	90	0.1%
happ_tool_get	Read	90	0.1%
happ_trace_recent	Read	90	0.1%
happ_folder_delete	Destructive	89	0.1%
happ_playground_reset	Destructive	89	0.1%
happ_call_get	Read	89	0.1%
happ_invitation_revoke	Destructive	88	0.1%
happ_test_cases_list	Read	88	0.1%
happ_knowledge_get	Read	87	0.1%
happ_chat_delete	Destructive	86	0.1%
happ_quick_reply_folders_list	Read	86	0.1%
happ_phone_detach	Read	85	0.1%
happ_company_delete	Destructive	84	0.1%
happ_company_get	Read	83	0.1%
happ_quick_reply_delete	Destructive	82	0.1%
happ_monitor_delete	Read	82	0.1%
happ_company_leave	Destructive	81	0.1%
happ_knowledge_delete	Destructive	80	0.1%
happ_phone_delete	Destructive	80	0.1%
happ_tool_delete	Destructive	80	0.1%
happ_phone_get	Read	80	0.1%
happ_message_style_delete	Destructive	79	0.1%
happ_folders_list	Read	74	0.1%
happ_companies_list	Read	71	0.1%
happ_whoami	Read	62	0.1%
happ_logout	Read	49	0.1%

// CUT THE COST

Your agent uses a handful of these tools. It pays for all 275.

You don't need all 275 of those definitions in the window. PolicyLayer is an MCP gateway that sits in front of Platform: 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 275 tools (no gateway)	65,080 tokens	—
3 granted tools	~710 tokens	−99%
5 granted tools	~1,183 tokens	−98%
10 granted tools	~2,367 tokens	−96%

The risk dividend: 26 of these 275 tools are critical-risk (destructive or financial) and cost 2,573 tokens (4% 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 Platform — 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 PLATFORM TOKEN COST →

Instant setup, no code required.

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

//FAQ

Platform token-cost questions.

How many tokens does the Platform MCP server use?+

Its 275 tool definitions total 65,080 tokens — 33% 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 Platform 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 Platform's token usage?+

Expose fewer tools. A PolicyLayer grant scopes Platform 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 710 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 21-10-2026 from the PolicyLayer scan database over all 275 catalogued Platform tools. Counts refresh with every site build.