ELSA | API
Engage your users and stand out from competitors
Leverage ELSA’s world-leading Speech Recognition API for your business’ unique needs.
Request API Key
A game-changing solution for your education platform
Top ASR in the industry
Give your users world-class speech recognition feedback - a high value feature for language learning.
3x conversion rate
Convert users to paying customers at 3x the industry standard rate, thanks to the interactive and engaging nature of speaking practice with ELSA.
8x user engagement
Keep users engaged for longer. An ELSA user’s average session time is 23 minutes - in the top 10% of language learning apps.
How does ELSA API work?
1API input
Unscripted: spontaneous speech where the ELSA server will recognize what the user said and then score it.
Scripted: pre-defined text for the user to read and ELSA gives feedback.
2API output
Unscripted: spontaneous speech where the ELSA server will recognize what the user said and then score it.
Scripted: pre-defined text for the user to read and ELSA gives feedback.
Real-time feedback and recommendations to improve English skills
[Demo] API output feedback
Overall
Pronunciation
Areas for Improvement
Suggestions for Improvement
Intonation
Average Pitch Variation
Volume Variation Score
Fluency
Average Pace
Suggestions for Improvement
Maintaining your pace between 100 wpm and 140 wpm will help you keep your audience engaged.
Tips and tricks to improve
Grammar
Top Errors
Word Order - 6 mistakes
Verb Form - 5 mistakes
Article - 4 mistakes
Suggestions for Improvement
Good grammar gives clarity and structure to your speech.
Additional resources for Verb Form
Vocabulary
Vocabulary Distribution
Using advanced Vocabulary ( B2, C1 and C2) adds colour and flair to your delivery.
Suggestions for Improvement
Exploring high-level synonyms will help you expand your Active Vocabulary Bank.
Your Overall Score
Your Pronunciation Highlights
Areas for Improvement
Suggestions for Improvement
Your Intonation Highlights
Average Pitch Variation
Volume Variation Score
Your Fluency Highlights
Average Pace
Suggestions for Improvement
Maintaining your pace between 100 wpm and 140 wpm will help you keep your audience engaged.
Tips and tricks to improve
Your Grammar Highlights
Top Errors
Word Order - 6 mistakes
Verb Form - 5 mistakes
Article - 4 mistakes
Suggestions for Improvement
Good grammar gives clarity and structure to your speech.
Additional resources for Verb Form
Your Vocabulary Highlights
Vocabulary Distribution
Using advanced Vocabulary ( B2, C1 and C2) adds colour and flair to your delivery.
Suggestions for Improvement
Exploring high-level synonyms will help you expand your Active Vocabulary Bank.
Technology that accurately recognizes and gives feedback to non native speakers
Our AI is constantly advancing with
learners practicing an average of
23 minutes per session
With learners from 195 countries
in the world, our AI trains with a diverse set of non native accent data
95% of users express higher
confidence in speaking English after
practicing for at least 10 minutes
a day for 3 months
ELSA API can detect
speech errors at various levels
Word Pronunciation
Speak the word and get pronunciation feedback for each sound.
interesting
/ˈɪn.trɪ.stɪŋ/
Sentence Pronunciation
Receive feedback on your pronunciation, intonation, and fluency on a sentence.
Would you like to try?
/wʊd ju laɪk tə traɪ/
Unscripted Speech
Receive feedback on your pronunciation, vocabulary, grammar & more for your speech.
Express yourself in English and get detailed feedback on your speech.
That’s cool! Let me try...
Simple, flexible pricing
No overcharges or hidden fees.
We prefer simple and transparent.
STANDARD
Scripted
$0.008
Unscripted
$0.02
Per every 15s of audio
Get Started
Get Started
PREMIUM
$0.01
$0.025
Per every 15s of audio
Get Started
Get Started
AUDIO LENGTH (PER REQUEST)
Scripted
Unscripted
STANDARD
Up to 20s
Up to 20s
PREMIUM
Up to 45s
Up to 150s
USAGE
Word pronunciation
Scripted
Unscripted
STANDARD
PREMIUM
Sentence pronunciation
STANDARD
PREMIUM
Multiple choice pronunciation
STANDARD
PREMIUM
Fluency assessment
STANDARD
PREMIUM
Spontaneous speech assessment
STANDARD
PREMIUM
IELTS assessment
STANDARD
PREMIUM
FEEDBACK PROVIDED
Sentence, word and phoneme scores
STANDARD
PREMIUM
Sentence and phoneme mispronunciations and feedback hints
STANDARD
PREMIUM
Word stress, reading speed, mispronunciation rate and pausing metrics
STANDARD
PREMIUM
Fluency and intonation metrics
STANDARD
PREMIUM
Spoken transcript
STANDARD
PREMIUM
Grammar score and feedback
STANDARD
PREMIUM
Vocabulary score and feedback
STANDARD
PREMIUM
Simple, flexible pricing
No overcharges or hidden fees. We prefer simple and transparent.
Scripted
STANDARD
$0.008Per every 15s of audio Get Started
PREMIUM
$0.01Per every 15s of audio Get Started
Unscripted
STANDARD
$0.02Per every 15s of audio Get Started
PREMIUM
$0.025Per every 15s of audio Get Started
AUDIO LENGTH(PER REQUEST)
Up to 20s
Up to 45s
Up to 20s
Up to 150s
USAGE
Word pronunciation
Sentence pronunciation
Multiple choice pronunciation
Fluency assessment
Spontaneous speech assessment
IELTS assessment
FEEDBACK PROVIDED
Sentence, word and phoneme scores
Sentence and phoneme mispronunciations and feedback hints
Word stress, reading speed, mispronunciation rate and pausing metrics
Fluency and intonation metrics
Spoken IELTS score estimate
Spoken transcript
Grammar score and feedback
Vocabulary score and feedback
Ready to learn more about ELSA API?
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bosnia and Herzegovina
Botswana
Brazil
British Indian Ocean Territory
British Virgin Islands
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
Caribbean Netherlands
Cayman Islands
Central African Republic
Chad
Chile
China
Christmas Island
Cocos (Keeling) Islands
Colombia
Comoros
Congo
Cook Islands
Costa Rica
Cote d'Ivoire
Croatia
Cuba
Curaçao
Cyprus
Czech Republic
Denmark
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Ethiopia
Falkland Islands
Faroe Islands
Fiji
Finland
France
French Guiana
French Polynesia
Gabon
Gambia
Georgia
Germany
Ghana
Gibraltar
Greece
Greenland
Grenada
Guadeloupe
Guam
Guatemala
Guernsey
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
Hong Kong
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Isle of Man
Israel
Italy
Jamaica
Japan
Jersey
Jordan
Kazakhstan
Kenya
Kiribati
Kosovo
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macau
Macedonia
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
Marshall Islands
Martinique
Mauritania
Mauritius
Mayotte
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Montserrat
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
Northern Mariana Islands
Norway
Oman
Pakistan
Palau
Palestine
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Poland
Portugal
Puerto Rico
Qatar
Réunion
Romania
Russia
Rwanda
Saint Barthélemy
Saint Helena
Saint Kitts and Nevis
Saint Lucia
Saint Martin)
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Samoa
San Marino
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Sint Maarten
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Korea
South Sudan
Spain
Sri Lanka
Sudan
Suriname
Svalbard and Jan Mayen
Swaziland
Sweden
Switzerland
Syria
Taiwan
Tajikistan
Tanzania
Thailand
Timor-Leste
Togo
Tokelau
Tonga
Trinidad and Tobago
Tunisia
Turkey
Turkmenistan
Turks and Caicos Islands
Tuvalu
U.S. Virgin Islands
Uganda
Ukraine
United Arab Emirates
United Kingdom
United States
Uruguay
Uzbekistan
Vanuatu
Vatican City
Venezuela
Vietnam
Wallis and Futuna
Western Sahara
Yemen
Zambia
Zimbabwe
Åland Islands
+93 ▼
Plan: Standard (Scripted)Plan: Premium (Scripted)Plan: Standard (Unscripted)Plan: Premium (Unscripted)
Submit
World's Best English Pronunciation App
Copyright ©2026 ELSA, All rights reserved
FOR INDIVIDUALS
for organizations
COMPANY
SOLUTIONS
DOWNLOAD
Copyright ©2026 ELSA, All rights reserved
Hey...
Open your camera app, scan the QR code below to download our ELSA app