check_vn_working_day — Calcgrid MCP Tool Read-only
check_vn_working_day
(check vn working day) is one of 253 tools on the
Calcgrid
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call check_vn_working_day from your client
- Claude Code Calcgrid check_vn_working_day run in your project directory
- Claude Desktop Calcgrid check_vn_working_day ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Calcgrid check_vn_working_day ~/.cursor/mcp.json
- VS Code Calcgrid check_vn_working_day .vscode/mcp.json
- Zed Calcgrid check_vn_working_day ~/.config/zed/settings.json
- Windsurf Calcgrid check_vn_working_day ~/.codeium/windsurf/mcp_config.json
- Cline Calcgrid check_vn_working_day ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Calcgrid check_vn_working_day ~/.gemini/settings.json
- Grok Calcgrid check_vn_working_day .mcp.json (in your project root)
- ChatGPT Calcgrid check_vn_working_day Settings → Connectors → Advanced → Developer mode
- Claude.ai Calcgrid check_vn_working_day Settings → Connectors → Add custom connector
- LangChain Calcgrid check_vn_working_day pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http calcgrid https://tttkmbb.com/mcpOther tools on this server
- search_calculators
- list_calculators
- list_calculator_categories
- list_working_day_calendars
- get_calculator_schema
- run_calculator
- convert_units
- list_units
- calculate_business_deadline
- check_china_working_day
- add_china_working_days
- count_china_working_days
- check_uk_working_day
- add_uk_working_days
- count_uk_working_days
- check_global_working_day
- add_global_working_days
- count_global_working_days
- convert_solar_to_lunar
- convert_lunar_to_solar
- list_solar_terms
- resolve_local_time
- list_time_zone_transitions
- convert_time_zone
- calculate_loan_payment
- compare_loans
- check_global_public_holiday_working_day
- add_global_public_holiday_working_days
- count_global_public_holiday_working_days
- check_global_reference_working_day
- add_global_reference_working_days
- count_global_reference_working_days
- calculate_compound_interest
- calculate_mortgage_payment
- calculate_tip
- calculate_amortization_schedule
- calculate_bmi
- calculate_bmr
- calculate_tdee
- calculate_running_pace
- calculate_percentage
- calculate_percentage_change
- solve_quadratic_equation
- calculate_fraction_arithmetic
- calculate_circle_properties
- calculate_descriptive_statistics
- calculate_t_test
- convert_temperature
- calculate_kinetic_energy
- solve_ohms_law
- calculate_molar_mass
- calculate_age
- calculate_date_difference
- check_singapore_working_day
- add_singapore_working_days
- count_singapore_working_days
- check_australia_working_day
- add_australia_working_days
- count_australia_working_days
- check_us_federal_working_day
- add_us_federal_working_days
- count_us_federal_working_days
- check_canada_federal_working_day
- add_canada_federal_working_days
- count_canada_federal_working_days
- check_japan_national_working_day
- add_japan_national_working_days
- count_japan_national_working_days
- check_india_central_working_day
- add_india_central_working_days
- count_india_central_working_days
- check_uae_federal_working_day
- add_uae_federal_working_days
- count_uae_federal_working_days
- check_new_zealand_working_day
- add_new_zealand_working_days
- count_new_zealand_working_days
- check_south_africa_working_day
- add_south_africa_working_days
- count_south_africa_working_days
- check_ireland_working_day
- add_ireland_working_days
- count_ireland_working_days
- check_fr_working_day
- add_fr_working_days
- count_fr_working_days
- check_br_working_day
- add_br_working_days
- count_br_working_days
- check_mx_working_day
- add_mx_working_days
- count_mx_working_days
- check_ph_working_day
- add_ph_working_days
- count_ph_working_days
- check_id_working_day
- add_id_working_days
- count_id_working_days
- check_kr_working_day
- add_kr_working_days
- count_kr_working_days
- check_it_working_day
- add_it_working_days
- count_it_working_days
- check_es_working_day
- add_es_working_days
- count_es_working_days
- check_de_working_day
- add_de_working_days
- count_de_working_days
- check_nl_working_day
- add_nl_working_days
- count_nl_working_days
- check_be_working_day
- add_be_working_days
- count_be_working_days
- check_at_working_day
- add_at_working_days
- count_at_working_days
- check_pl_working_day
- add_pl_working_days
- count_pl_working_days
- check_pt_working_day
- add_pt_working_days
- count_pt_working_days
- check_dk_working_day
- add_dk_working_days
- count_dk_working_days
- check_se_working_day
- add_se_working_days
- count_se_working_days
- check_no_working_day
- add_no_working_days
- count_no_working_days
- check_fi_working_day
- add_fi_working_days
- count_fi_working_days
- check_ch_working_day
- add_ch_working_days
- count_ch_working_days
- check_tw_working_day
- add_tw_working_days
- count_tw_working_days
- check_hk_working_day
- add_hk_working_days
- count_hk_working_days
- check_turkey_working_day
- add_turkey_working_days
- count_turkey_working_days
- check_sa_working_day
- add_sa_working_days
- count_sa_working_days
- check_th_working_day
- add_th_working_days
- count_th_working_days
- check_ar_working_day
- add_ar_working_days
- count_ar_working_days
- check_uzbekistan_working_day
- add_uzbekistan_working_days
- count_uzbekistan_working_days
- add_vn_working_days
- count_vn_working_days
- check_bd_working_day
- add_bd_working_days
- count_bd_working_days
- check_lk_working_day
- add_lk_working_days
- count_lk_working_days
- check_ng_working_day
- add_ng_working_days
- count_ng_working_days
- check_gh_working_day
- add_gh_working_days
- count_gh_working_days
- check_pk_working_day
- add_pk_working_days
- count_pk_working_days
- check_ke_working_day
- add_ke_working_days
- count_ke_working_days
- check_eg_working_day
- add_eg_working_days
- count_eg_working_days
- check_ru_working_day
- add_ru_working_days
- count_ru_working_days
- check_co_working_day
- add_co_working_days
- count_co_working_days
- check_my_working_day
- add_my_working_days
- count_my_working_days
- check_cl_working_day
- add_cl_working_days
- count_cl_working_days
- check_gr_working_day
- add_gr_working_days
- count_gr_working_days
- check_kz_working_day
- add_kz_working_days
- count_kz_working_days
- check_pe_working_day
- add_pe_working_days
- count_pe_working_days
- check_sk_working_day
- add_sk_working_days
- count_sk_working_days
- check_hu_working_day
- add_hu_working_days
- count_hu_working_days
- check_cz_working_day
- add_cz_working_days
- count_cz_working_days
- check_hr_working_day
- add_hr_working_days
- count_hr_working_days
- check_si_working_day
- add_si_working_days
- count_si_working_days
- check_ee_working_day
- add_ee_working_days
- count_ee_working_days
- check_lu_working_day
- add_lu_working_days
- count_lu_working_days
- check_mt_working_day
- add_mt_working_days
- count_mt_working_days
- check_lt_working_day
- add_lt_working_days
- count_lt_working_days
- check_lv_working_day
- add_lv_working_days
- count_lv_working_days
- check_bg_working_day
- add_bg_working_days
- count_bg_working_days
- check_ro_working_day
- add_ro_working_days
- count_ro_working_days
- calculate_ab_test_significance
- calculate_haversine_distance
- price_black_scholes_option
- calculate_subnet
- estimate_ev_charging_time
- calculate_depth_of_field
- convert_betting_odds
- find_chinese_zodiac
- calculate_bazi_four_pillars
- lookup_iching_hexagram
- cast_plum_blossom_hexagram
This list was read from the server itself, by connecting to it and calling tools/list on 2 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.