Plumbing & Pipe Flow Calc
8 x402 APIs served from plumbing-calc.x402tookit.com
Every listing from Plumbing & Pipe Flow Calc that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.
At a glance
- Listings
- 8 x402 APIs
- Passing at the latest check
- 7 of 8
- Uptime, 30 days
- 59.6% on average across 8 listings
- Price
- $0.02 per call
- Trust score
- 34 to 62, median 60
- Paying wallets, 30 days
- No usage data
- Verified owner
- None
- Security findings
- None found
- Listed since
- 20 Oct 2026
No usage data. The x402 Bazaar reports paying wallets for the x402 APIs it lists; MCP servers and APIs submitted directly have none.
All 8 listings
Ranked by trust score.
- 62trustPressure LossPlumbing & Pipe Flow Calc
Friction pressure loss in psi (and feet of head) over a pipe run by the Hazen-Williams formula, from flow, size and C factor.
$0.02per call on Polygon65.0% uptime, 542 msPassing, checked 7 h ago - 62trustPipe SizePlumbing & Pipe Flow Calc
Smallest standard copper Type L or PVC Schedule 40 pipe that keeps water under a maximum velocity at your flow rate.
$0.02per call on Polygon65.0% uptime, 549 msPassing, checked 8 h ago - 61trustTank Fill TimePlumbing & Pipe Flow Calc
Time to fill or drain a tank from its volume or round tank size and flow in gpm, with an optional outflow.
$0.02per call on Polygon64.3% uptime, 516 msPassing, checked 4 h ago - 60trustDrain SlopePlumbing & Pipe Flow Calc
Fall needed for a drain run at a given slope in inches per foot, or the slope of a measured fall, with typical code minimums.
$0.02per call on Polygon60.0% uptime, 518 msPassing, checked 5 h ago - 60trustBucket TestPlumbing & Pipe Flow Calc
Flow rate in gpm and litres per minute from a bucket test: container volume and seconds to fill, with a daily-use estimate.
$0.02per call on Polygon60.0% uptime, 543 msPassing, checked 5 h ago - 58trustThermal ExpansionPlumbing & Pipe Flow Calc
How much a pipe run lengthens or shortens with temperature for copper, steel, PVC, CPVC, PEX or ABS, in inches and mm.
$0.02per call on Polygon53.3% uptime, 532 msPassing, checked 11 h ago - 58trustFlow VelocityPlumbing & Pipe Flow Calc
Water velocity in feet per second from flow in gpm and pipe size, or the flow a pipe carries at a chosen velocity.
$0.02per call on Polygon53.3% uptime, 522 msPassing, checked 13 h ago - 34trustPipe VolumePlumbing & Pipe Flow Calc
Water held in a run of pipe in gallons and litres per foot and in total, from nominal size or inside diameter.
$0.02per call on Polygon55.6% uptime, 525 msFailing, checked 27 h ago
How these numbers are made
Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.