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Everything else. 20,447 listings from 10,962 providers, one row per provider.
- 61trustHttp Status ClassDev Reference
All registered HTTP status codes in a class (1xx to 5xx) with names and one-line meanings.
$0.02per call on Polygon64.3% uptime, 523 msPassing, checked 4 h ago - 61trustPerp BasisPerp Derivatives Signals
Perp premium to oracle price for a coin on Hyperliquid, in percent, with a stretched/normal verdict.
$0.02per call on Polygon64.3% uptime, 504 msPassing, checked 6 h ago - 61trustErlang StaffingSystems Capacity Calculators
Erlang B and C: trunks for a blocking target, or agents for a service level such as 80 percent answered in 20 seconds.
$0.02per call on Polygon64.7% uptime, 519 msPassing, checked 9 h ago - 61trustWorking HoursWork Time Calc
Working hours between two timestamps under a weekly schedule with breaks and a holiday list.
$0.02per call on Polygon64.3% uptime, 489 msPassing, checked 4 h ago - 61trustMakes By TypeVehicle VIN Toolkit
List the vehicle makes NHTSA records for a vehicle type (car, truck, motorcycle, bus, trailer), with an optional name filter.
$0.02per call on Polygon64.3% uptime, 520 msPassing, checked 5 h ago - 61trustSwrRadio & RF Calc
SWR, reflection coefficient, return loss, mismatch loss and reflected power from SWR, a resistive load, or two power readings.
$0.02per call on Polygon64.3% uptime, 532 msPassing, checked 7 h ago - 61trustPizza OrderParty & Event Planner
How many pizzas to order from guests, kids and slices each, with pizza area, area per guest and a size comparison.
$0.02per call on Polygon64.3% uptime, 521 msPassing, checked 4 h ago - 61trustTap TimestampsMusic Production Calc
Tap tempo from tap timestamps in ms: mean and median BPM, interval spread and jitter percent.
$0.02per call on Polygon64.3% uptime, 552 msPassing, checked 7 h ago - 61trustJson ValidateJSON and Data Tools
Check whether text is valid JSON; if not, return the error with line and column. If valid, report type, size and depth.
$0.02per call on Polygon64.3% uptime, 527 msPassing, checked 6 h ago - 61trustIssn CheckIdentifier Validators
Validate an ISSN (journal or serial number) check digit and format it with the hyphen.
$0.02per call on Polygon64.3% uptime, 521 msPassing, checked 5 h ago - 61trustTrue AirspeedAviation Calculators
True airspeed, Mach and equivalent airspeed from calibrated airspeed, pressure altitude and outside air temperature.
$0.02per call on Polygon64.3% uptime, 513 msPassing, checked 3 h ago - 61trustTap DrillMachining & Fasteners Calc
Tap drill size for metric coarse (M3 to M24) and common inch threads (#4-40 to 1/2-20), with the formula check.
$0.02per call on Polygon63.2% uptime, 522 msPassing, checked 8 h ago - 61trustDiamond WeightJewelry Maker Calc
Estimate a diamond's carats from millimetre size and shape, or the diameter of a round stone for a given carat weight.
$0.02per call on Polygon63.2% uptime, 535 msPassing, checked 4 h ago - 61trustGpaGrades & Study Calc
GPA on the 4.0 scale from letter grades and credits, with optional honors (+0.5) and AP/IB (+1.0) weighting.
$0.02per call on Polygon63.2% uptime, 546 msPassing, checked 8 h ago - 61trustSoil VolumeGarden Calculators
Soil or mulch for a rectangular or round bed: cubic feet, yards, litres, bags, settling allowance and a mix split by parts.
$0.02per call on Polygon63.2% uptime, 536 msPassing, checked 9 h ago - 61trustResin VolumeCraft & Maker Calc
Resin needed to fill a rectangular or round mold: volume in ml and oz, waste allowance and parts A and B by mix ratio.
$0.02per call on Polygon63.2% uptime, 533 msPassing, checked 8 h ago - 61trustContrast FixColor and Design Tools
Adjust a text color's lightness just enough to reach a WCAG contrast target (4.5, 3 or 7) on a background, keeping its hue.
$0.02per call on Polygon63.2% uptime, 514 msPassing, checked 8 h ago - 61trustPiece MovesChess Notation Tools
Squares a knight, bishop, rook, queen, king or pawn reaches from a square on an empty board, with the count.
$0.02per call on Polygon63.2% uptime, 531 msPassing, checked 5 h ago - 61trustCaffeine DecayFocus & Sleep Planner
Caffeine remaining after hours, and the time until it drops below a threshold, from a half-life you can set (default 5 hours).
$0.02per call on Polygon63.2% uptime, 530 msPassing, checked 4 h ago - 61trustDca Vs LumpInvesting Math
Compare equal periodic buys (dollar-cost averaging) with one lump sum on the first date, over a list of prices.
$0.02per call on Polygon63.2% uptime, 512 msPassing, checked 8 h ago - 60trustTestnet Base Sepolia Eth1gateway
Use when an agent, x402 test or CI job needs Base Sepolia gas now: one x402 call, no faucet login or mainnet history. Input: to (recipient address); sends 0.1 ETH (1 ETH: /v1/testnet/base-sepolia-eth/1). Output: JSON txHash (confirmed before settling), explorerUrl, amountEth, from, to. Daily limits (UTC): 5 ETH per address (both sizes), 20 overall; checked before payment. Test ETH has no monetary value. Example: ?to=0x000000000000000000000000000000000000dEaD
$0.05per call on Base50.0% uptime, 508 ms, 1 paying agentsFailing, checked 4 h ago - 60trustPROME Care Coreprome.ai
Check actions against fixed values using supplied numeric facts. Never authorizes or executes.
MCPgated76.7% uptime, 2.4 sPassing, checked 5 h ago - 60trustTracking & Returnsaftership.com
Track packages across 1,300+ global carriers with real-time status and AI-powered delivery dates.
2 toolsopen44.7% uptime, 196 msPassing, checked 5 h ago - 60trustPortfoliohire.virohanalife.com
Akshay Shetty's engineering portfolio and resume, queryable by AI. OAuth-secured.
MCPgated61.5% uptime, 871 msFailing, checked 2 h ago - 60trustFEA (finite element analysis)therobomaster123--mcp-fea-mcp-endpoint.modal.run
Real FEA on CAD parts: validated setups, stress, safety factor, natural frequencies
MCPgated38.9% uptime, 568 msFailing, checked 5 h ago - 60trustChina Medical Device Lookupagentdatacore.com
Look up medical devices in China by UDI, product name, registrant, registration number or category.
6 toolsopen64.0% uptime, 1.2 sFailing, checked 28 h ago - 60trustSignal Sprintsignalsprint-mqysbksh.manus.space
Paid x402 MCP utilities for Base-USDC balances, blocks, gas, HTTPS headers, and agent profile bios.
4 toolsopen60.0% uptime, 778 msFailing, checked 1 h ago - 60trustMCP Auth Preflightauth.inversolabs.us
Preflight MCP OAuth compatibility with structured evidence and remediation guidance.
1 toolsopen45.8% uptime, 202 msPassing, checked 9 h ago - 60trustUrl NormalizeCheap Utilities
Normalize a URL: lowercase host, default port and fragment removed, sorted query, tracking parameters stripped.
$0.02per call on Polygon61.1% uptime, 515 msPassing, checked 10 h ago - 60trustPrice RoundingPricing Math
Round a price to a charm ending such as .99 or .95, or to steps like 9 at the end of tens, up, down or nearest.
$0.02per call on Polygon60.0% uptime, 523 msPassing, checked 7 h ago