Best AI Gateways Software

Adam Crivello
AC
Researched and written by Adam Crivello

AI gateway solutions serve as intelligent middleware deployed between custom-built enterprise applications and the underlying large language models (LLM) and artificial intelligence (AI) agents they rely on. Rather than coding application programming interface (API) keys and logic for specific providers directly into applications, development teams can route all model requests through the AI gateway. This centralized control plane standardizes API interactions and handles the heavy lifting of enterprise AI infrastructure.

AI gateways provide development teams with unified controls for multi-LLM routing, automatic failover, semantic caching, token-based rate limiting, and exact cost tracking. By abstracting the underlying AI models from application logic, AI gateways ensure high availability, optimize inference costs, and enforce strict API governance. This also prevents "shadow AI": the use of unauthorized models and unmonitored API keys hidden within application code.

Many existing API management platforms have extended their functionality to include AI gateway solutions. AI gateways are also closely related to LLMOps platforms, which handle the broader end-to-end lifecycle of building, fine-tuning, and evaluating models. However, while LLMOps focuses heavily on model development, AI gateways focus strictly on runtime API consumption and governance.

Additionally, buyers looking to secure employee web interactions with public AI chatbots rather than developer-driven application traffic should explore the AI security posture management (AI-SPM) category.

To qualify for inclusion in the AI Gateways category, a product must:

Act as an API proxy or middleware layer specifically between custom client applications (or agents) and external AI models
Provide multi-model routing and load balancing, allowing developers to switch or fallback between different LLM providers via a single unified API
Offer user-level rate limiting to manage API quotas and prevent system overloads
Include detailed observability and FinOps tracking specifically for AI workloads
Support performance optimization features for generative AI, such as semantic caching, to reduce redundant API calls and latency
Centralize AI API key management and authentication
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Best AI Gateways Software At A Glance

Best Free Software:
WSO2 API Platform
WSO2 API Platform
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G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our scoring methodologies.

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24 Listings in AI Gateways Available
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WSO2 API Platform
(140)4.5 out of 5
Entry Level Price:Contact Us
View top Consulting Services for WSO2 API Platform
OverviewPros and Cons
Product Description

WSO2 API Platform is an open source, unified control plane for managing APIs, AI, and event-driven traffic across cloud, hybrid, and on-prem environments. It enables organizations to design, secure

Users: Software Engineer, Senior Software Engineer · Industries: Computer Software, Information Technology and Services · Market Segment: 36% Small-Business, 34% Enterprise
Pros and ConsSeller Details
ProsAPI Management, API Development, Speed, Deployment, Ease of Use
ConsDifficult Configuration, Complexity, Difficult Setup, API Limitations, API Management
Seller Details
Seller
WSO2
Company Website
Year Founded
2005
HQ Location
Mountain View, CA
Twitter
@wso2
12,717 Twitter followers
LinkedIn® Page
www.linkedin.com
1,218 employees on LinkedIn®
Portkey
(19)4.6 out of 5
OverviewPros and Cons
Product Description

Portkey is the essential control panel for AI-powered applications, trusted by thousands of dev teams worldwide. Our comprehensive suite includes: - AI Gateway: Seamlessly manage and route your AI re

Industries: Computer Software · Market Segment: 58% Small-Business, 37% Mid-Market
Pros and ConsSeller Details
ProsEasy Integrations, Ease of Use, Integrations, Cost Optimization, Features
ConsPoor Documentation, Software Bugs, Limited Features, Missing Features, Alert Issues
Seller Details
Seller
Portkey
Year Founded
2023
HQ Location
San Francisco, US
LinkedIn® Page
www.linkedin.com
29 employees on LinkedIn®
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Databricks
(727)4.6 out of 5
View top Consulting Services for Databricks
OverviewPros and Cons
Product Description

Databricks is the Data and AI company. More than 20,000 organizations worldwide — including adidas, AT&T, Bayer, Block, Mastercard, Rivian, Unilever, and over 60% of the Fortune 500 — rely on Data

Users: Data Engineer, Senior Data Engineer · Industries: Information Technology and Services, Financial Services · Market Segment: 45% Enterprise, 39% Mid-Market
User Sentiment

Users frequently mention the platform's data governance capabilities, its support for machine learning applications, and its helpful autofilling features, as well as its seamless integration with other tools like Power BI for reporting. Users mentioned challenges such as the complexity of fine-tuning the platform to specific business use cases, the need for a team of professionals to handle large data, and the financial investment involved in using the platform.

Pros and ConsSeller Details
ProsFeatures, Ease of Use, Integrations, Collaboration, Data Management
ConsLearning Curve, Expensive, Steep Learning Curve, Missing Features, Complexity
Seller Details
Seller
Databricks Inc.
Company Website
Year Founded
2013
HQ Location
San Francisco, CA
Twitter
@databricks
88,848 Twitter followers
LinkedIn® Page
www.linkedin.com
13,825 employees on LinkedIn®
Helicone
(2)4.5 out of 5
OverviewSeller Details
Product Description

Helicone is an open-source observability platform designed to empower developers working with Large Language Models . It offers comprehensive tools for logging, monitoring, debugging, and analyzing AI

Market Segment: 100% Small-Business
Seller Details
Seller
Helicone
Year Founded
2023
HQ Location
San Francisco, US
LinkedIn® Page
www.linkedin.com
9 employees on LinkedIn®
HAProxy
(826)4.7 out of 5
Entry Level Price:FREE Open Source
OverviewPros and Cons
Product Description

HAProxy is an open-source software load balancer and reverse proxy for TCP, QUIC, and HTTP-based applications. It provides high availability, load balancing, and best-in-class SSL processing. HAPr

Users: DevOps Engineer, Software Engineer · Industries: Information Technology and Services, Computer Software · Market Segment: 43% Mid-Market, 35% Enterprise
User Sentiment

Reviewers appreciate HAProxy's reliability, high performance, and the control it provides over traffic and load balancing, as well as its security features and ease of installation and maintenance. Reviewers experienced complexity in configuring HAProxy, especially for beginners, and some found it lacking in compatibility with certain features and found the user interface could be improved for non-technical users.

Pros and ConsSeller Details
ProsEase of Use, Load Balancing, Reliability, Performance, Configuration Ease
ConsDifficult Configuration, Learning Difficulty, Complex Setup, Complex Configuration, Complexity
Seller Details
Seller
HAProxy
Company Website
Year Founded
2013
HQ Location
Newton, MA
Twitter
@HAProxy
21,284 Twitter followers
LinkedIn® Page
www.linkedin.com
128 employees on LinkedIn®
API7 Enterprise
(1)5.0 out of 5
Entry Level Price:Pay As You Go
OverviewPros and Cons
Product Description

1️⃣ About API7.ai, the original creator of Apache APISIX API7.ai, founded in 2019, is an open-source infrastructure company that empowers API management and analysis. It provides a wide range of p

Market Segment: 100% Mid-Market
Pros and ConsSeller Details
ProsAPI Development, Customer Support, Customization, Flexibility, Implementation Ease
Seller Details
Seller
API7.ai
Year Founded
2019
HQ Location
Singapore, SG
LinkedIn® Page
www.linkedin.com
34 employees on LinkedIn®
Azure API Management
(30)4.2 out of 5
View top Consulting Services for Azure API Management
OverviewSeller Details
Product Description

Microsoft Azure API Management - Take any backend and publish an API in minutes! Transform it, protect it, promote it and monitor it in the cloud.

Industries: Information Technology and Services · Market Segment: 47% Mid-Market, 40% Enterprise
Seller Details
Seller
Microsoft
Year Founded
1975
HQ Location
Redmond, Washington
Twitter
@microsoft
13,090,136 Twitter followers
LinkedIn® Page
www.linkedin.com
226,132 employees on LinkedIn®
Ownership
MSFT
Cequence Security
(57)4.6 out of 5
OverviewPros and Cons
Product Description

Cequence is a pioneer in application protection and API security, making the applications and APIs that organizations depend on AI-ready while protecting them from attacks, business logic abuse, and f

Industries: Telecommunications, Information Technology and Services · Market Segment: 39% Small-Business, 35% Enterprise
Pros and ConsSeller Details
ProsProtection, Security, API Management, Customer Support, Time-Saving
ConsComplex Setup, Difficult Learning Curve, Slow Performance, Dashboard Performance, Detection Issues
Seller Details
Seller
Cequence Security
Company Website
Year Founded
2014
HQ Location
Santa Clara, CA
Twitter
@cequenceai
688 Twitter followers
LinkedIn® Page
www.linkedin.com
152 employees on LinkedIn®
Cloudflare Application Security and Performance
(595)4.5 out of 5
Entry Level Price:Free
View top Consulting Services for Cloudflare Application Security and Performance
OverviewPros and Cons
Product Description

Cloudflare is the connectivity cloud for the "everywhere world," on a mission to help build a better Internet. We provide a unified platform of networking, security, and developer services delivered f

Users: Web Developer, Software Engineer · Industries: Information Technology and Services, Computer Software · Market Segment: 62% Small-Business, 26% Mid-Market
User Sentiment

Reviewers like the platform's ability to improve application speed and availability, its robust protection against DDoS attacks and web threats, and its user-friendly interface that requires minimal technical effort. Users reported that some advanced configuration can be complex for new users, certain powerful features are limited to higher-tier plans, and there have been instances of outages affecting application availability.

Pros and ConsSeller Details
ProsSecurity, Ease of Use, Features, Performance, Reliability
ConsComplex User Interface, Expensive, Complex Setup, Complexity, Learning Curve
Seller Details
Seller
Cloudflare, Inc.
Company Website
Year Founded
2009
HQ Location
San Francisco, California
Twitter
@Cloudflare
272,857 Twitter followers
LinkedIn® Page
www.linkedin.com
6,320 employees on LinkedIn®
Gravitee.io
(36)4.6 out of 5
Entry Level Price:Free
OverviewPros and Cons
Product Description

Gravitee is a unified API, event, and AI agent management platform that helps organizations securely expose and govern digital capabilities for both humans and autonomous AI agents. Teams use Gravi

Industries: Computer Software · Market Segment: 36% Enterprise, 36% Mid-Market
Pros and ConsSeller Details
ProsCustomer Support, Ease of Use, API Management, Cost Efficiency, Features
ConsNot User-Friendly, Poor UI, UX Improvement
Seller Details
Seller
Gravitee.io
Company Website
Year Founded
2016
HQ Location
Boulder, US
Twitter
@GraviteeIO
935 Twitter followers
LinkedIn® Page
www.linkedin.com
204 employees on LinkedIn®
IBM API Connect
(162)4.3 out of 5
Free trial available
View top Consulting Services for IBM API Connect
OverviewPros and Cons
Product Description

IBM API Connect is a complete, intuitive and scalable API solution that lets organizations implement a robust API strategy by building, exposing, securing, and managing an entire API ecosystem across

Users: Software Engineer · Industries: Information Technology and Services, Financial Services · Market Segment: 45% Enterprise, 35% Mid-Market
Pros and ConsSeller Details
ProsFeatures, API Management, Ease of Use, Integration Capabilities, Security
ConsAPI Limitations, Expensive, Learning Difficulty, Performance Issues, Slow Performance
Seller Details
Seller
IBM
Year Founded
1911
HQ Location
Armonk, NY
Twitter
@IBM
708,652 Twitter followers
LinkedIn® Page
www.linkedin.com
339,241 employees on LinkedIn®
Ownership
SWX:IBM
Kong AI Gateway
0 ratings
OverviewSeller Details
Product Description

Kong AI Gateway enables organizations to secure, govern, and optimize AI traffic across any LLM provider. Accelerate AI adoption with a unified control plane that delivers intelligent routing across O

Seller Details
Seller
Kong Inc
Year Founded
2017
HQ Location
San Francisco, CA
LinkedIn® Page
www.linkedin.com
896 employees on LinkedIn®
KrakenD API Gateway
(58)4.7 out of 5
Entry Level Price:Free
OverviewPros and Cons
Product Description

KrakenD is the next-generation API Gateway built for high-performance, large-scale environments. Its stateless, database-free architecture enables true linear scalability with minimal infrastructure a

Industries: Computer Software, Information Technology and Services · Market Segment: 52% Mid-Market, 33% Small-Business
Pros and ConsSeller Details
ProsCustomer Support, Ease of Use, Ease of Implementation, Performance, Features
ConsAPI Management, Difficult Configuration, Inadequate Logging, Connector Issues, Integration Issues
Seller Details
Seller
KrakenD
Company Website
Year Founded
2016
HQ Location
Barcelona, Catalonia, Spain
Twitter
@krakend_io
744 Twitter followers
LinkedIn® Page
www.linkedin.com
8 employees on LinkedIn®
Lasso
0 ratings
OverviewSeller Details
Seller Details
Seller
Lasso.security
Year Founded
2023
HQ Location
Tel Aviv, IL
LinkedIn® Page
www.linkedin.com
70 employees on LinkedIn®
liteLLM
0 ratings
OverviewSeller Details
Product Description

LiteLLM is an open-source Large Language Model (LLM) gateway designed to streamline access, management, and monitoring of over 100 LLM providers through a unified, OpenAI-compatible API. By offering a

Seller Details
Seller
Litellm
Year Founded
2023
HQ Location
N/A
LinkedIn® Page
www.linkedin.com
1 employees on LinkedIn®
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