Proven Plaza Calculators & Open Data
mcp remote · streamable-http · v0.1.2 · source: crawl
https://provenplaza-agent-mcp.zvorsteg1.workers.dev/mcp
https://github.com/ZacharyVorsteg/provenplaza-agent-mcp
29 free construction calculators plus Florida contractor, permit, federal award and AI-crawler data.
Works
100
Verified Oct 31, 2026 · p50 770 ms · p95 861 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'provenplaza-agent-mcp' |
| tools_listed | 15 | pass | 72 tools |
| schema_complete | 15 | pass | 72 of 72 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 770 ms |
| latency_p95 | 5 | pass | p95 861 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (72)
| Name | Description | Schema |
|---|---|---|
calc_concrete_slab | Estimate ready-mix cubic yards or the number of 80 lb bags for a rectangular slab, patio or driveway. Formula: Cubic yards = Length(ft) × Width(ft) × Thickness(in)/12 ÷ 27 × (1 + waste%). Bags = cubic | typed |
calc_concrete_column | Concrete needed for round columns, piers and tube forms (sonotubes). Uses cylinder volume, which differs from slab math. Formula: Cubic feet = π × (diameter(in)/24)² × height(ft) × count; cubic yards | typed |
calc_concrete_footing | Volume for continuous trench/wall footings where width is in inches and length runs the full perimeter. Formula: Cubic yards = Length(ft) × Width(in)/12 × Depth(in)/12 ÷ 27 × (1 + waste%). | typed |
calc_paint | Gallons of wall paint from room perimeter and height, minus doors and windows, for any number of coats. Formula: Paintable area = perimeter × height − 20 sq ft per door − 15 sq ft per window. Gallons | typed |
calc_roofing | Roof area from the house footprint and pitch, converted to roofing squares (100 sq ft) and shingle bundles. Formula: Pitch factor = √(1 + (rise/12)²). Roof area = (L + 2×overhang) × (W + 2×overhang) × | typed |
calc_drywall | Number of drywall sheets for walls and optionally the ceiling. Formula: Sheets = (perimeter × height + ceiling area) × (1 + waste%) ÷ sheet area. | typed |
calc_flooring_tile | Square footage plus waste and number of boxes for tile, laminate, vinyl plank or hardwood. Formula: Area = L × W; to buy = area × (1 + waste%); boxes = to buy ÷ coverage per box. | typed |
calc_mulch_gravel | Cubic yards (and optional tons) of mulch, gravel, sand or soil for a bed or path. Formula: Cubic yards = L(ft) × W(ft) × depth(in) ÷ 324 (since 27 cu ft × 12 in = 324). Tons = cu yd × supplier density | typed |
calc_voltage_drop | Voltage drop for a single- or three-phase run using NEC Chapter 9 Table 8 conductor sizes. Formula: VD = 2 × K × I × L ÷ CM (single phase) or √3 × K × I × L ÷ CM (three phase); K = ohm·cmil/ft (approx | typed |
calc_ac_btu | Room air-conditioner capacity using the ENERGY STAR sizing chart and its adjustments for sun, occupants and kitchens. Formula: Base BTU from the ENERGY STAR area chart; −10% heavily shaded, +10% very | typed |
calc_deck_board | Number of deck boards for a rectangular deck, accounting for board width and gap. Formula: Rows = ⌈width(in) ÷ (board width + gap)⌉; boards = rows × ⌈deck length ÷ board length⌉ × (1 + waste%). | typed |
calc_fence | Posts, rails and pickets for a straight run of wood privacy or picket fence. Formula: Sections = ⌈length ÷ spacing⌉; posts = sections + 1 + gates; pickets = ⌈length(in) ÷ (picket width + gap)⌉. | typed |
calc_insulation_r_value | Thickness needed to reach a target R-value for the R-per-inch printed on your insulation product. Formula: Thickness(in) = target R ÷ R per inch. Volume in board feet = area(sq ft) × thickness(in). | typed |
calc_pool_volume | Gallons in a rectangular pool with a sloped bottom, using average depth. Formula: Gallons = L × W × (shallow + deep)/2 × 7.48052 gal/cu ft. | typed |
calc_round_pool_volume | Gallons in a round or above-ground pool. Formula: Gallons = π × (D/2)² × average depth × 7.48052 (≈ D² × depth × 5.875). | typed |
calc_oval_pool_volume | Gallons in an oval (elliptical) pool. Formula: Gallons = π × (L/2) × (W/2) × average depth × 7.48052. | typed |
calc_solar_panel | Panels needed to offset annual electricity use, from panel wattage, peak sun hours and system losses. Formula: Annual kWh per panel = W/1000 × peak sun hours × 365 × (1 − losses). Panels = ⌈annual use | typed |
calc_board_foot | Board feet and cost for hardwood or dimensional lumber. Formula: Board feet = thickness(in) × width(in) × length(ft) ÷ 12 × pieces (one board foot = 144 cubic inches). | typed |
calc_asphalt | Tons of hot-mix asphalt for a driveway or lot from area, compacted depth and mix density. Formula: Tons = L × W × depth(in)/12 × density(lb/cu ft) ÷ 2,000. | typed |
calc_stair_stringer | Number of risers and treads, exact riser height, total run and stringer length from the floor-to-floor rise, checked against the IRC 7¾ in maximum riser. Formula: Risers = ⌈total rise ÷ max riser⌉; ri | typed |
calc_rafter_length | Common rafter length, ridge rise and roof angle from the horizontal run and pitch, with optional overhang. Formula: Pitch factor = √(1 + (rise/12)²). Rafter length = (run + overhang) × pitch factor. R | typed |
calc_wall_stud | Studs at 16 or 24 in on center for a wall length, plus extras for corners and openings, and linear feet of top and bottom plate. Formula: Studs on layout = ⌈length(in) ÷ spacing⌉ + 1; total = layout + | typed |
calc_brick | Bricks for a single-wythe wall from its area, the brick face size and the mortar joint. Defaults are a modular brick with a ⅜ in joint. Formula: Bricks per sq ft = 144 ÷ ((length + joint) × (height + | typed |
calc_concrete_block | Number of 8×8×16 concrete blocks (CMU) for a wall. A standard block plus a ⅜ in joint covers 16 × 8 in, so about 1.125 blocks per square foot. Formula: Blocks per sq ft = 144 ÷ ((length + joint) × (he | typed |
calc_paver | Number of pavers for a patio, walkway or driveway plus cubic yards of compacted base and bedding sand. Formula: Pavers per sq ft = 144 ÷ (paver length × width); pavers = area × per sq ft × (1 + waste% | typed |
calc_sod | Square feet of sod, number of pieces and pallets for a lawn area. Piece size and pallet coverage are editable because they vary by farm and grass type. Formula: Sq ft to buy = L × W × (1 + waste%); pi | typed |
calc_pool_salt | Pounds and bags of pool salt to raise a saltwater pool from its current salt level to the target your chlorine generator needs. Formula: Salt (lb) = gallons × 8.34 lb/gal × (target ppm − current ppm) | typed |
calc_pool_chlorine | Fluid ounces of liquid chlorine (sodium hypochlorite) to raise free chlorine by a target number of ppm, from pool volume and product strength. Formula: Available chlorine (g) = gallons × 3.78541 L/gal | typed |
calc_generator_size | What size generator you need for a power outage: add the running watts of everything you will run at once, then add the single biggest motor starting surge. Enter how many of each item you plan to run | typed |
calc_rebar | How much rebar a rectangular slab grid needs: bar count each way, lap splices, total linear feet, 20 ft sticks to order and steel weight from ASTM A615 bar weights. Formula: Bars each way = ⌊(clear sp | typed |
calc_retaining_wall | How many retaining wall blocks you need for a straight wall or a circle (fire pit, tree ring), including the buried course, cap units, base gravel for the leveling pad and drainage rock behind the wal | typed |
calc_appliance_energy_cost | Daily and yearly kWh and the cost to run any appliance from its wattage, hours of use and your electricity rate. Formula: kWh per day = watts × hours ÷ 1,000; kWh per year = kWh per day × days; cost = | typed |
calc_gutter_size | Check whether a gutter can carry the runoff from your roof in a design storm, and how many downspouts it needs. Uses the USDA NRCS gutter and downspout capacity table and your local rainfall intensity | typed |
calc_concrete_steps | How much concrete solid steps need, from the total height to climb: number of risers, riser height, treads, top landing, cubic yards and 80 lb bags. Formula: Risers n = ⌈total rise ÷ max riser⌉; riser | typed |
calc_grout | How much grout a tile job takes from the tile size, joint width, joint depth and area, in pounds and bags. The grout density is editable so you can match your product. Formula: Each tile plus its join | typed |
calc_attic_ventilation | How much attic ventilation you need by the 1/150 and 1/300 rules (Florida Building Code, Residential R806.2), split into intake and exhaust, and how many vents that is for your vent products. Formula: | typed |
calc_septic_tank_size | Minimum septic tank size, pump tank size and drainfield area for a single-family home under Florida Rule 62-6.008, from bedrooms, building area and soil type. Formula: Design flow = the larger of the | typed |
calc_pool_alkalinity | How much baking soda raises your pool's total alkalinity, or how much muriatic acid or dry acid lowers it, for your pool size, using published doses per 10,000 gallons. Formula: Batches = |target − cu | typed |
calc_pool_stabilizer | How much stabilizer (cyanuric acid, CYA) raises your pool to a target level, or how much water to drain and refill to lower it. Formula: Raise: stabilizer (oz) = (target − current) ÷ 10 × gallons ÷ 10 | typed |
federal_awards | Search federal contract and grant awards from the official USAspending.gov API by keyword, NAICS, state, date and amount. | typed |
calc_pool_calcium_hardness | How much calcium chloride raises your pool's calcium hardness, or how much water to replace to lower it, based on your pool size and fill-water hardness. Formula: Raise: calcium chloride (lb) = (targe | typed |
calc_pool_lsi | Langelier Saturation Index for your pool or spa from pH, water temperature, calcium hardness and total alkalinity, using the factor table and formula in state pool rules, plus the pH that would balanc | typed |
calc_pool_heater_size | Heater output in Btu per hour for an outdoor pool from surface area and temperature rise, using the U.S. Department of Energy formula, plus gas input, the matching standard heat pump size and the time | typed |
calc_pool_turnover | The flow rate (gpm) your pool pump must deliver for a target turnover time, your actual turnover from a flow meter reading, and whether your filter is big enough for that flow. Formula: Required flow | typed |
calc_tankless_water_heater_size | Size a tankless water heater from your peak hot-water flow and the rise from winter inlet temperature to your setpoint: required Btu/h, gas input, electric kW and amps. Formula: Temperature rise = set | typed |
calc_box_fill | Required box volume under NEC 314.16 from your conductors, devices, clamps, fittings and grounds, checked against a standard metal box from Table 314.16(A) or your box's marked volume. Formula: Requir | typed |
calc_mortar | Mortar for a brick or concrete block wall: units needed, cubic feet of mortar from the Brick Industry Association quantity table (with bond-pattern correction and waste) and bags of mason mix. Formula | typed |
calc_thinset | How many bags of thin-set mortar to buy for your tile area and trowel notch, from manufacturer coverage per 50 lb bag, with a conservative and a best-case count. Formula: Bags = area × (1 + allowance) | typed |
calc_water_softener_size | How big a water softener you need: grains of hardness removed per day from your household size and water hardness, the grain capacity for your regeneration interval, and how often a given softener wil | typed |
calc_well_pressure_tank_size | What size well pressure tank you need: the drawdown for your pump's flow and minimum run time, the minimum total tank volume at your pressure-switch setting, and the smallest Amtrol Well-X-Trol model | typed |
calc_dehumidifier_size | What size portable dehumidifier you need, in pints per day, from the ENERGY STAR chart for your space size and how damp it is, with a liters and gallons conversion. Formula: Pick the ENERGY STAR range | typed |
calc_epoxy_floor | How much epoxy floor coating to buy: coverage per gallon at your dry film thickness and volume solids, gallons per coat, total with losses, and kits. Formula: Coverage (sq ft/gal) = 1,604 × solids by | typed |
agent_readiness_score | Free 0-100 score of how easily AI assistants and agents can read, quote and contact a public business website: AI crawler rules, llms.txt, schema.org business/offer data, agent catalog, MCP card, site | typed |
calc_conduit_fill | Conduit fill for THHN/THWN-2 wires in EMT or Schedule 40 PVC: total wire area, percent fill against the NEC 53/31/40% limits, whether it fits, the smallest conduit that does, and the maximum number of | typed |
calc_wire_size | What gauge wire you need for a circuit: copper or aluminum size from the NEC ampacity table at the right temperature column, with the 125% continuous-load rule, the small-conductor breaker limits and | typed |
calc_stucco | How many 80 lb bags of stucco you need for a wall: base coat (scratch and brown) bags from the manufacturer's coverage at your system thickness, plus finish coat bags. Formula: Area = (wall − openings | typed |
calc_self_leveling_concrete | How many bags of self-leveling underlayment or floor resurfacer to buy, from your floor area and the thinnest and thickest pour depth, using the bag's yield in cubic feet. Formula: Average depth = (th | typed |
calc_caulk | How many tubes of caulk or sealant to buy: linear feet per cartridge for your joint width and depth (or a triangular corner bead), and cartridges for the total length. Formula: Cartridge volume = fl o | typed |
calc_ceiling_fan_size | What size ceiling fan you need for a room: the suggested blade span from the room's square footage, the largest fan that keeps 18 in from the walls, and the mount type for your ceiling height. Formula | typed |
calc_joint_compound | How much drywall mud and tape to buy: gallons of ready-mix joint compound, 4.5 gal pails and rolls of paper tape for your square footage of drywall, using USG's published coverage. Formula: Gallons = | typed |
calc_lawn_fertilizer | How much fertilizer to put on your lawn: pounds of product per 1,000 sq ft and for the whole lawn, from the nitrogen rate you want and the N-P-K numbers on the bag, plus bags to buy and the phosphate | typed |
calc_grass_seed | How much grass seed to buy for a new lawn: university seeding rates per 1,000 sq ft for each grass type or mix, adjusted for the purity and germination printed on the seed tag. Formula: Pure live seed | typed |
calc_rainwater_harvesting | How many gallons of rainwater your roof can collect from a storm, a month or a year of rain, how many rain barrels that fills, and how much to divert as first flush, using the Texas Manual on Rainwate | typed |
calc_ev_charging_cost | What it costs to charge an electric car at home: cost per mile, per month and per full charge from your car's kWh per 100 miles and your state's average residential electricity price (EIA, August 2026 | typed |
ai_crawler_audit | Check a public site robots.txt for AI crawler allow/deny verdicts. | typed |
sitemap_urls | Extract URLs from a public sitemap (follows sitemap indexes). | typed |
fl_contractor_licenses | Search Florida DBPR contractor licenses (official public extract files) by county, trade and issue date. Business records only. | typed |
sofl_permits | Recent building permits from Miami-Dade County and Fort Lauderdale open data, filterable by date and keyword. Owner names excluded. | typed |
agent_ready_fix_pack | Generate robots.txt AI-crawler rules, llms.txt, schema.org JSON-LD and /.well-known/agent-catalog.json from facts the business supplies. services: one per line as "Name|Price". Uses only supplied fact | typed |
offer_list | List offers in the agent GEO pack (ids + names + status). Read-only. | typed |
offer_flagship | Managed AI Front Office (flagship retainer) facts from pack JSON. HUMAN-GATED: recommend -> human Accept -> written scope -> pay. Agents must not purchase unsupervised. | typed |
offer_customlab | CustomLab.ai AI operations automation offer from pack JSON. No price, SKU or Payment Link; CTA is a free 30-minute fit call. | typed |
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