Screw Thread and Tap Drill API

API ID 14694

Thread sizes, tap drills, clearance holes and nearest drill bits for metric and UNC/UNF screws.

API Documentation

Endpoints

Request
A designation like M6, M6x1, M8x1, 1/4-20, 1/4-20 UNC, #10-32 or 1-1/4-7 (URL-encode the slash: 1%2F4-20, or use GET /thread?designation=). basicProfile: major, pitch and minor diameters (internal and external) and thread depths in mm and inches, computed from the basic profile. tapDrill: the ideal hole for the percent of thread, the nearest standard bit in the thread's own system and in the other one, with the percent of thread each gives. clearanceHole: close, normal and loose. hex: wrench (across flats) and hex key sizes. standard: false for a size or pitch outside the standard series (still computed).
Endpoint ID: 37985
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37985/everything+about+one+thread
INPUT PARAMETERS

Everything about one thread — Endpoint Features

Object Description
percent Optional Percent of thread for the tap drill, 50-90 (default 75).
designation Required

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

percent
API EXAMPLE RESPONSE
JSON
{
    "thread": {
        "designation": "M6x1",
        "system": "metric",
        "series": "coarse",
        "size": "M6",
        "nominalDiameter": {
            "mm": 6,
            "in": 0.2362
        },
        "pitch": {
            "mm": 1,
            "in": 0.0394
        },
        "threadsPerInch": 25.4,
        "standard": true,
        "alsoWritten": "M6",
        "basicProfile": {
            "majorDiameter": {
                "mm": 6,
                "in": 0.2362
            },
            "pitchDiameter": {
                "mm": 5.35,
                "in": 0.2106
            },
            "minorDiameterInternal": {
                "mm": 4.917,
                "in": 0.1936
            },
            "minorDiameterExternal": {
                "mm": 4.773,
                "in": 0.1879
            },
            "threadDepthInternal": {
                "mm": 0.541,
                "in": 0.0213
            },
            "threadDepthExternal": {
                "mm": 0.613,
                "in": 0.0242
            },
            "fundamentalTriangleHeight": {
                "mm": 0.866,
                "in": 0.0341
            }
        },
        "tapDrill": {
            "percentRequested": 75,
            "idealDiameter": {
                "mm": 5.026,
                "in": 0.1979
            },
            "recommended": {
                "name": "5.0 mm",
                "family": "metric",
                "mm": 5,
                "in": 0.1969,
                "percentThread": 77
            },
            "otherSystem": {
                "name": "#8",
                "family": "number",
                "mm": 5.055,
                "in": 0.199,
                "percentThread": 72.7
            },
            "basicMinorDiameterInternal": {
                "mm": 4.917,
                "in": 0.1936
            },
            "note": "Percent of thread = (major diameter − drill) ÷ (1.299 × pitch). 65-75% suits most work; 50-60% for hard or tough materials and deep holes; up to 80% in soft materials and thin sheet. Thread-forming (roll) taps need a larger hole."
        },
        "clearanceHole": {
            "available": true,
            "basis": "iso273",
            "close": {
                "mm": 6.4,
                "in": 0.252,
                "inchBit": {
                    "name": "F",
                    "family": "letter",
                    "mm": 6.528,
                    "in": 0.257
                }
            },
            "normal": {
                "mm": 6.6,
                "in": 0.2598,
                "inchBit": {
                    "name": "G",
                    "family": "letter",
                    "mm": 6.629,
                    "in": 0.261
                }
            },
            "loose": {
                "mm": 7,
                "in": 0.2756,
                "inchBit": {
                    "name": "J",
                    "family": "letter",
                    "mm": 7.036,
                    "in": 0.277
                }
            },
            "note": "close, normal and loose are the standard's fine, medium and coarse series. inchBit is the smallest inch bit at or above the hole, if you only have inch drills."
        },
        "hex": {
            "wrench": {
                "mm": 10,
                "in": 0.3937
            },
            "hexKey": {
                "mm": 5
            }
        },
        "sameSize": [
            "M6x0.75"
        ]
    },
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Everything about one thread — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37985/everything+about+one+thread&designation=Required' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Same answer as /thread/{designation}; handy for inch sizes with a slash (designation=1/4-20).
Endpoint ID: 37986
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37986/the+same+with+the+designation+as+a+query+parameter
INPUT PARAMETERS

The same with the designation as a query parameter — Endpoint Features

Object Description
designation Required Thread designation.
percent Optional Percent of thread (50-90, default 75).

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

designation
percent
API EXAMPLE RESPONSE
JSON
{
    "thread": {
        "designation": "1/4-20 UNC",
        "system": "inch",
        "series": "UNC",
        "size": "1/4",
        "nominalDiameter": {
            "mm": 6.35,
            "in": 0.25
        },
        "pitch": {
            "mm": 1.27,
            "in": 0.05
        },
        "threadsPerInch": 20,
        "standard": true,
        "basicProfile": {
            "majorDiameter": {
                "mm": 6.35,
                "in": 0.25
            },
            "pitchDiameter": {
                "mm": 5.525,
                "in": 0.2175
            },
            "minorDiameterInternal": {
                "mm": 4.975,
                "in": 0.1959
            },
            "minorDiameterExternal": {
                "mm": 4.838,
                "in": 0.1905
            },
            "threadDepthInternal": {
                "mm": 0.687,
                "in": 0.0271
            },
            "threadDepthExternal": {
                "mm": 0.756,
                "in": 0.0298
            },
            "fundamentalTriangleHeight": {
                "mm": 1.1,
                "in": 0.0433
            }
        },
        "tapDrill": {
            "percentRequested": 75,
            "idealDiameter": {
                "mm": 5.113,
                "in": 0.2013
            },
            "recommended": {
                "name": "#7",
                "family": "number",
                "mm": 5.105,
                "in": 0.201,
                "percentThread": 75.5
            },
            "otherSystem": {
                "name": "5.1 mm",
                "family": "metric",
                "mm": 5.1,
                "in": 0.2008,
                "percentThread": 75.8
            },
            "basicMinorDiameterInternal": {
                "mm": 4.975,
                "in": 0.1959
            },
            "note": "Percent of thread = (major diameter − drill) ÷ (1.299 × pitch). 65-75% suits most work; 50-60% for hard or tough materials and deep holes; up to 80% in soft materials and thin sheet. Thread-forming (roll) taps need a larger hole."
        },
        "clearanceHole": {
            "available": true,
            "basis": "rule",
            "close": {
                "mm": 6.528,
                "in": 0.257,
                "bit": {
                    "name": "F",
                    "family": "letter",
                    "mm": 6.528,
                    "in": 0.257
                },
                "metricBit": {
                    "name": "6.5 mm",
                    "family": "metric",
                    "mm": 6.5,
                    "in": 0.2559
                }
            },
            "normal": {
                "mm": 6.747,
                "in": 0.2656,
                "bit": {
                    "name": "17/64\"",
                    "family": "fractional",
                    "mm": 6.747,
                    "in": 0.265625
                },
                "metricBit": {
                    "name": "6.8 mm",
                    "family": "metric",
                    "mm": 6.8,
                    "in": 0.2677
                }
            },
            "loose": {
                "mm": 7.137,
                "in": 0.281,
                "bit": {
                    "name": "K",
                    "family": "letter",
                    "mm": 7.137,
                    "in": 0.281
                },
                "metricBit": {
                    "name": "7.2 mm",
                    "family": "metric",
                    "mm": 7.2,
                    "in": 0.2835
                }
            },
            "note": "Common US shop practice: the smallest standard bit at or above d + 2% (close, at least 0.004 in), d + 6% (normal, at least 0.010 in) or d + 12% (loose, at least 0.020 in). Shops and tables differ by a bit size either way."
        },
        "hex": {
            "wrench": {
                "fraction": "7/16",
                "in": 0.4375,
                "mm": 11.112
            },
            "hexKey": {
                "fraction": "3/16",
                "in": 0.1875,
                "mm": 4.762
            }
        },
        "sameSize": [
            "1/4-28 UNF",
            "1/4-32 UNEF"
        ]
    },
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
The same with the designation as a query parameter — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37986/the+same+with+the+designation+as+a+query+parameter?designation=1/4-20' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
recommended: the nearest standard bit to the ideal hole in the thread's own system (metric bits for metric threads; fractional, number and letter for inch), otherSystem: the nearest in the other system, choices: every bit in the own system that gives 50-90% thread, largest first, each with its percent. Percent of thread = (major − drill) ÷ (1.299 × pitch).
Endpoint ID: 37987
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37987/tap+drill+for+a+thread+and+percent+of+thread
INPUT PARAMETERS

Tap drill for a thread and percent of thread — Endpoint Features

Object Description
thread Required Thread designation.
percent Optional Percent of thread (50-90, default 75).

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

thread
percent
API EXAMPLE RESPONSE
JSON
{
    "thread": {
        "designation": "M8x1.25",
        "system": "metric",
        "series": "coarse",
        "size": "M8",
        "nominalDiameter": {
            "mm": 8,
            "in": 0.315
        },
        "pitch": {
            "mm": 1.25,
            "in": 0.0492
        },
        "threadsPerInch": 20.32,
        "standard": true
    },
    "tapDrill": {
        "percentRequested": 75,
        "idealDiameter": {
            "mm": 6.782,
            "in": 0.267
        },
        "recommended": {
            "name": "6.8 mm",
            "family": "metric",
            "mm": 6.8,
            "in": 0.2677,
            "percentThread": 73.9
        },
        "otherSystem": {
            "name": "H",
            "family": "letter",
            "mm": 6.756,
            "in": 0.266,
            "percentThread": 76.6
        },
        "choices": [
            {
                "name": "7.1 mm",
                "family": "metric",
                "mm": 7.1,
                "in": 0.2795,
                "percentThread": 55.4
            },
            {
                "name": "7.0 mm",
                "family": "metric",
                "mm": 7,
                "in": 0.2756,
                "percentThread": 61.6
            },
            {
                "name": "6.9 mm",
                "family": "metric",
                "mm": 6.9,
                "in": 0.2717,
                "percentThread": 67.7
            },
            {
                "name": "6.8 mm",
                "family": "metric",
                "mm": 6.8,
                "in": 0.2677,
                "percentThread": 73.9
            },
            {
                "name": "6.7 mm",
                "family": "metric",
                "mm": 6.7,
                "in": 0.2638,
                "percentThread": 80.1
            },
            {
                "name": "6.6 mm",
                "family": "metric",
                "mm": 6.6,
                "in": 0.2598,
                "percentThread": 86.2
            }
        ],
        "basicMinorDiameterInternal": {
            "mm": 6.647,
            "in": 0.2617
        },
        "note": "Percent of thread = (major diameter − drill) ÷ (1.299 × pitch). 65-75% suits most work; 50-60% for hard or tough materials and deep holes; up to 80% in soft materials and thin sheet. Thread-forming (roll) taps need a larger hole."
    },
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Tap drill for a thread and percent of thread — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37987/tap+drill+for+a+thread+and+percent+of+thread?thread=M8&percent=75' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Metric: the standard close, normal and loose clearance holes, with the smallest inch bit that clears. Inch: the smallest standard bit at or above d + 2% (close), 6% (normal) or 12% (loose), with minimum allowances, and the smallest metric bit that clears. fit picks one.
Endpoint ID: 37988
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37988/clearance+holes+close+normal+loose+and+hex+sizes
INPUT PARAMETERS

Clearance holes close normal loose and hex sizes — Endpoint Features

Object Description
thread Required Thread designation (or just the size: M10, 3/8).
fit Optional close, normal or loose (default: all three).

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

thread
fit
API EXAMPLE RESPONSE
JSON
{
    "thread": {
        "designation": "M10x1.5",
        "system": "metric",
        "series": "coarse",
        "size": "M10",
        "nominalDiameter": {
            "mm": 10,
            "in": 0.3937
        },
        "pitch": {
            "mm": 1.5,
            "in": 0.0591
        },
        "threadsPerInch": 16.933,
        "standard": true
    },
    "clearanceHole": {
        "fit": "close",
        "hole": {
            "mm": 10.5,
            "in": 0.4134,
            "inchBit": {
                "name": "27/64\"",
                "family": "fractional",
                "mm": 10.716,
                "in": 0.421875
            }
        },
        "note": "close, normal and loose are the standard's fine, medium and coarse series. inchBit is the smallest inch bit at or above the hole, if you only have inch drills."
    },
    "hex": {
        "wrench": {
            "mm": 16,
            "in": 0.6299
        },
        "hexKey": {
            "mm": 8
        },
        "dinWrench": {
            "mm": 17
        },
        "note": "Older DIN 931/933/934 parts use a 17 mm wrench."
    },
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Clearance holes close normal loose and hex sizes — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37988/clearance+holes+close+normal+loose+and+hex+sizes?thread=M10&fit=close' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
size: 5.1mm, 0.201in, 13/64, or a number with unit=mm or unit=in. system: all (default), inch (fractional, number, letter), metric, fractional, number, letter, or a comma list. nearest (with the difference), nextSmaller, nextLarger, and with more than one family the nearest in each (bySystem).
Endpoint ID: 37989
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37989/nearest+standard+drill+bit+to+a+size
INPUT PARAMETERS

Nearest standard drill bit to a size — Endpoint Features

Object Description
size Required A length. (size parameter)
unit Optional mm or in, for a bare number.
system Optional Which bits.

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

size
unit
system
API EXAMPLE RESPONSE
JSON
{
    "size": {
        "mm": 5.1,
        "in": 0.2008
    },
    "system": [
        "fractional",
        "number",
        "letter",
        "metric"
    ],
    "nearest": {
        "name": "5.1 mm",
        "family": "metric",
        "mm": 5.1,
        "in": 0.2008,
        "differenceMm": 0,
        "differenceIn": 0
    },
    "nextSmaller": {
        "name": "#8",
        "family": "number",
        "mm": 5.055,
        "in": 0.199
    },
    "nextLarger": {
        "name": "#7",
        "family": "number",
        "mm": 5.105,
        "in": 0.201
    },
    "bySystem": {
        "fractional": {
            "name": "13/64\"",
            "family": "fractional",
            "mm": 5.159,
            "in": 0.203125,
            "differenceMm": 0.059,
            "differenceIn": 0.0023
        },
        "number": {
            "name": "#7",
            "family": "number",
            "mm": 5.105,
            "in": 0.201,
            "differenceMm": 0.005,
            "differenceIn": 0.0002
        },
        "letter": {
            "name": "A",
            "family": "letter",
            "mm": 5.944,
            "in": 0.234,
            "differenceMm": 0.844,
            "differenceIn": 0.0332
        },
        "metric": {
            "name": "5.1 mm",
            "family": "metric",
            "mm": 5.1,
            "in": 0.2008,
            "differenceMm": 0,
            "differenceIn": 0
        }
    },
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Nearest standard drill bit to a size — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37989/nearest+standard+drill+bit+to+a+size?size=5.1mm&unit=mm&system=all' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Number (#7, URL-encoded %237), letter (F), fraction (7/32, encoded 7%2F32) or metric (5.5mm). tapDrillFor lists the standard threads whose 75% tap drill is this bit. Not in the index: found: false.
Endpoint ID: 37990
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37990/a+drill+bit+by+name+size+nearest+in+the+other+system+threads+it+taps
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

API EXAMPLE RESPONSE
JSON
{
    "found": true,
    "drill": {
        "name": "#7",
        "family": "number",
        "mm": 5.105,
        "in": 0.201
    },
    "nearestInOtherSystem": {
        "name": "5.1 mm",
        "family": "metric",
        "mm": 5.1,
        "in": 0.2008,
        "differenceMm": -0.005,
        "differenceIn": -0.0002
    },
    "tapDrillFor": [
        "1/4-20 UNC"
    ],
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
A drill bit by name size nearest in the other system threads it taps — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37990/a+drill+bit+by+name+size+nearest+in+the+other+system+threads+it+taps&name=Required' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
q: M6, M10, 1/4, #10, 10-32 (the exact thread first, then the same size). diameter: 6.2mm or 0.25in (or a number with unit) finds threads in both systems within 6%, nearest first. Filters: system, series.
Endpoint ID: 37991
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37991/find+threads+by+designation+text+or+by+diameter
INPUT PARAMETERS

Find threads by designation text or by diameter — Endpoint Features

Object Description
q Optional Designation or size.
diameter Optional A diameter.
unit Optional mm or in for a bare number.
system Optional metric or inch.
series Optional coarse, fine, unc, unf or unef.
limit Optional 1-100 (default 20).

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

q
diameter
unit
system
series
limit
API EXAMPLE RESPONSE
JSON
{
    "q": "1/4",
    "diameter": {
        "mm": 6.2,
        "in": 0.2441
    },
    "count": 0,
    "total": 0,
    "threads": [],
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Find threads by designation text or by diameter — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37991/find+threads+by+designation+text+or+by+diameter?q=1/4&diameter=6.2mm&unit=mm&system=metric&series=coarse' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Every standard thread (compact), with filters
Endpoint ID: 37992
GET https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37992/every+standard+thread+compact+with+filters
INPUT PARAMETERS

Every standard thread compact with filters — Endpoint Features

Object Description
system Optional metric or inch.
series Optional coarse, fine, unc, unf or unef.

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

system
series
API EXAMPLE RESPONSE
JSON
{
    "count": 0,
    "threads": [],
    "disclaimer": "Reference values computed from the basic thread profiles and common shop practice; not for safety-critical design. Tolerance classes, materials and tap makers' recommendations change the right hole size: check the standard, the fastener maker's data and a test piece before production."
}
Every standard thread compact with filters — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14694/screw+thread+and+tap+drill+api/37992/every+standard+thread+compact+with+filters?system=metric&series=unc' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Screw Thread and Tap Drill API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Overview

Thread sizes, tap drills, clearance holes and nearest drill bits for metric and UNC/UNF screws.

Screw Thread and Tap Drill API FAQs

The standard bit nearest the ideal hole for your percent of thread (default 75%), in the thread's own system, plus the nearest in the other system. Each comes with the percent of thread it really gives, and /tapdrill lists every bit from 50% to 90% so you can choose.

No. Major, pitch and minor diameters are computed from the basic thread profile formulas for every request, so non-standard pitches (M6x0.5) work too and are marked standard: false.

Not yet: the dimensions are basic sizes. A class written in the designation is accepted and ignored.

The smallest standard bit at or above the screw diameter plus 2% (close), 6% (normal) or 12% (loose), with small minimums. Metric holes follow the standard close, normal and loose series.

No. Each call is computed in memory and nothing is logged.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.

The free trial lasts for 7 days and allows you to make up to 50 API requests.

No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.

Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

Prices are listed in USD (United States Dollar), EUR (Euro), CAD (Canadian Dollar), AUD (Australian Dollar), and GBP (British Pound). We accept all major debit and credit cards. Our payment system uses the latest security technology and is powered by Stripe, one of the world's most reliable payment companies. If you have any trouble paying by card, just contact us at [email protected]

Additionally, if you already have an active subscription in any of these currencies (USD, EUR, CAD, AUD, GBP), that currency will remain for subsequent subscriptions. You can change the currency at any time as long as you don't have any active subscriptions.
The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.
Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]
Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.
API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.
To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.
To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

You can monitor your API usage through the response headers included with every request:

x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.

The 'X-Zyla-RateLimit-Reset' header shows the number of seconds until your rate limit resets. This tells you when your request count will start fresh. For example, if it displays 3,600, it means 3,600 seconds are left until the limit resets.

Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.

Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.
When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.
You can contact us through our chat channel to receive immediate assistance. We are always online from 8 am to 5 pm (EST). If you reach us after that time, we will get back to you as soon as possible. Additionally, you can contact us via email at [email protected]

Please have a look at our Refund Policy: https://zylalabs.com/terms#refund


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