fspl — calc.engineer MCP Tool
fspl
(fspl) is one of 89 tools on the
calc.engineer
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call fspl from your client
- Claude Code calc.engineer fspl run in your project directory
- Claude Desktop calc.engineer fspl ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor calc.engineer fspl ~/.cursor/mcp.json
- VS Code calc.engineer fspl .vscode/mcp.json
- Zed calc.engineer fspl ~/.config/zed/settings.json
- Windsurf calc.engineer fspl ~/.codeium/windsurf/mcp_config.json
- Cline calc.engineer fspl ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI calc.engineer fspl ~/.gemini/settings.json
- Grok calc.engineer fspl .mcp.json (in your project root)
- ChatGPT calc.engineer fspl Settings → Connectors → Advanced → Developer mode
- Claude.ai calc.engineer fspl Settings → Connectors → Add custom connector
- LangChain calc.engineer fspl pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http calc https://calc.engineer/mcpOther tools on this server
- link_budget
- dipole
- microstrip
- dbm_convert
- noise_figure_cascade
- vswr
- attenuator_pi
- attenuator_tee
- fresnel_zone
- wavelength_freq
- spice_template
- spice_simulate
- lora_airtime
- snr_margin
- channel_utilization
- lora_range_estimate
- lora_sensitivity
- duty_cycle_budget
- meshtastic_range
- eirp_compliance
- meshtastic_power
- lora_param_optimizer
- zfs_capacity
- zfs_ram
- tcp_throughput
- wireguard_mtu
- subnet_calculator
- raid_iops
- power_cost
- cooling_btu
- rack_capacity
- network_bandwidth
- thermal_enclosure
- heatsink_cfd
- pcb_thermal
- battery_life
- wire_gauge
- solar_sizing
- ups_runtime
- mah_to_wh
- watts_to_amps
- voltage_drop
- battery_charge_time
- solar_load_audit
- solar_roi
- battery_autonomy
- string_sizing
- generator_offset
- wire_ampacity
- inverter_sizing
- pcb_layout
- voltage_divider
- rc_filter
- lc_resonance
- impedance_match
- trace_width
- ohms_law
- resistor_color_code
- led_resistor
- timer_555
- op_amp_gain
- capacitor_charge
- pcb_via_current
- power_supply_decoupling
- log_calc
- sig_figs
- scientific_notation
- percentage_calc
- percentage_increase
- exponent_calc
- square_root
- circumference
- slope_calc
- pythagorean_theorem
- p_value
- confidence_interval
- sales_tax
- salary_to_hourly
- loan_amortization
- compound_interest
- test_grade
- square_footage
- unit_convert
- hex_converter
- timestamp_converter
- bmi_calculator
- tip_calculator
- date_difference
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 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.