Who is Stoplight best for?

Stoplight is built for API developers and backend engineers building REST APIs, API program managers and architects governing large API portfolios, Frontend and consumer teams using mock APIs for parallel development, DevOps and platform engineering teams integrating API workflows into CI/CD. Common use cases include Design-first API development to reduce rework and align stakeholders before coding; Generating instant mock servers from OpenAPI specs for parallel frontend/consumer development; Enforcing API style guides and governance standards across large engineering organizations.

How is Stoplight priced?

Stoplight offers five tiers. Free: 1 user, 1 project, core design and documentation features. Basic: $44/month (annual) or $56/month (monthly), 3 users included, $11 per additional user/month (annual); includes OpenAPI visual designer, interactive docs, and instant mock servers. Startup: $113/month (annual) or $147/month, 8 users included, adds private projects, multi-branch support, custom domains, and Google Analytics integration. Pro Team: $362/month (annual) or $453/month, 15 users included, $22 per additional user/month (annual); adds up to 20 teams, shared style guides, LDAP/SAML SSO, activity logs, and component libraries. Enterprise: custom pricing with unlimited projects and teams, invoicing, custom payment terms, and priority support. All paid plans include a 14-day free trial.

What are the alternatives to Stoplight?

Common API Mocking & Service Virtualization alternatives to Stoplight include WireMock, Mockoon, Apidog, Beeceptor, Postman. See the full comparison hub at /verticals/api-mocking-service-virtualization/compare.

What do users praise about Stoplight?

Users frequently praise: Intuitive visual API editor with code/visual toggle; Strong OpenAPI and JSON Schema support; High-quality auto-generated interactive documentation; Easy setup and onboarding; Spectral linting and style-guide enforcement; Mock server generation from OpenAPI specs; Granular user permissions and access controls; Design-first workflow promotes collaboration.

What are common complaints about Stoplight?

Frequently cited limitations: Creating new API projects can be slow and time-consuming; Limited advanced API testing features compared to Postman or Apidog; Overall satisfaction rated lower than newer unified tools; Primarily REST/OpenAPI-centric, limited protocol breadth; Post-acquisition roadmap visibility reduced.

When was Stoplight founded and where?

Stoplight was founded in 2015, headquartered in Austin, TX, USA by Marc MacLeod.

How big is Stoplight?

Stoplight reports 50+ employees, 75K+ users across 40+ countries customers.

AI visibility report

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Outside the top three on 19 of the 25 prompts buyers actually ask.

WireMock is cited on 16 of those losses.

25 prompts

6 platforms

Updated Sep 6, 2026 - refreshed weekly

Track Stoplight daily

14-day free trial. No card required. Setup comes pre-filled for Stoplight.

Also benchmarked

Stoplight appears in another vertical

API Development & Management

Track Stoplight across these prompts daily.

Start your 14-day trial

4percent

Presence Rate

Low presence

#6 among 9 vendors · still absent from 96% of tracked prompt responses

Top-3 citations across 150 prompt × platform pairs

+0.48

Sentiment

-1.00.0+1.0

Positive

#6of 9

Peer Ranking

#1#9

Mid-packin API Mocking & Service Virtualization

Key Metrics

Presence Rate

4.0%

Share of Voice

8.0%

Avg Position

#6.6

Docs Presence

0.7%

Blog Presence

0.0%

Brand Mentions

20.7%

Platform Breakdown

ChatGPT

16%4/25 prompts

Gemini Search

Research dossierCapabilities, use cases, sources, reviews, pricing, and FAQ

Overview

Stoplight is a design-first API lifecycle platform, now operating under SmartBear Software following its acquisition in August 2023. Founded in 2015 in Austin, Texas, Stoplight enables development teams to design, document, mock, and govern REST APIs using OpenAPI specifications as a central source of truth. The platform combines a visual and code-based API editor, automatic mock server generation (via the open-source Prism tool), interactive documentation (via Elements), and linting/governance (via Spectral). Stoplight targets API developers, program managers, and enterprise teams seeking consistency and reusability at scale. Its design-first philosophy allows frontend and consumer teams to begin integration work against mock APIs before backend implementation is complete. Customers include Calendly, Schneider Electric, PagerDuty, Fiserv, and Transact. The platform is offered as SaaS with tiered pricing and a free tier.

AI visibility report

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Outside the top three on 19 of the 25 prompts buyers actually ask.

WireMock is cited on 16 of those losses.

25 prompts

6 platforms

Updated Sep 6, 2026 - refreshed weekly

Track Stoplight daily

14-day free trial. No card required. Setup comes pre-filled for Stoplight.

Also benchmarked

Stoplight appears in another vertical

API Development & Management

Track Stoplight across these prompts daily.

Start your 14-day trial

4percent

Presence Rate

Low presence

#6 among 9 vendors · still absent from 96% of tracked prompt responses

Top-3 citations across 150 prompt × platform pairs

+0.48

Sentiment

-1.00.0+1.0

Positive

#6of 9

Peer Ranking

#1#9

Mid-packin API Mocking & Service Virtualization

Key Metrics

Presence Rate

4.0%

Share of Voice

8.0%

Avg Position

#6.6

Docs Presence

0.7%

Blog Presence

0.0%

Brand Mentions

20.7%

Platform Breakdown

ChatGPT

16%4/25 prompts

Gemini Search

Research dossierCapabilities, use cases, sources, reviews, pricing, and FAQ

Overview

Reviews

4.4/5G2·343+

Praised

Intuitive visual API editor with code/visual toggle
Strong OpenAPI and JSON Schema support
High-quality auto-generated interactive documentation
Easy setup and onboarding
Spectral linting and style-guide enforcement
Mock server generation from OpenAPI specs
Granular user permissions and access controls
Design-first workflow promotes collaboration

Criticized

Creating new API projects can be slow and time-consuming
Limited advanced API testing features compared to Postman or Apidog
Overall satisfaction rated lower than newer unified tools
Primarily REST/OpenAPI-centric, limited protocol breadth
Post-acquisition roadmap visibility reduced

Stoplight holds a 4.4/5 rating on G2 across 343 verified reviews (as of April 2026), with 64% of reviewers awarding 5 stars and 31% awarding 4 stars. Reviewers consistently praise the intuitive visual API editor, quality of generated documentation, OpenAPI design workflow, and ease of getting started. The ability to seamlessly switch between code and visual views is frequently highlighted. Criticisms focus on limited advanced API testing capabilities, occasional slowness when setting up new projects, and a perception that overall satisfaction lags behind newer all-in-one tools like Apidog and Postman. G2 has recognized Stoplight as a Leader in the API Design category across multiple consecutive report periods (Spring, Summer, Fall, and Winter 2022, and into 2023).

Prompt	ChatGPT	Gemini Search	Bing Copilot	Google AI Mode	Perplexity	Grok
Capability0/5 cited (0%)
Which API mocking tools support stateful scenarios -- where the response depends on what was sent before?	A competitor was cited	A competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited
What mocking platforms support multi-protocol simulation including MQ, Kafka, and SOAP for enterprise integration testing?

#	Brand	PresencePres.	Share of VoiceSoV	DocsDocs	BlogBlog	MentionsMent.	Avg PosPos	Sentiment
1	WireMock	20.7%	38.9%	5.3%	0.0%	59.3%	#3.7	+0.50
2	Mockoon	10.0%	16.8%	0.7%	0.0%	31.3%	#4.4	+0.48
3	Apidog	6.7%	12.4%	0.0%	3.3%	10.0%	#3.9	+0.27
4	Beeceptor	4.7%	11.5%	2.7%	0.0%	14.7%	#3.7	+0.45
5	Postman	4.7%	8.8%	1.3%	0.0%	35.3%	#7.0	+0.36
6	Stoplight	4.0%	8.0%	0.7%	0.0%	20.7%	#6.6	+0.48
7	Speedscale	2.0%	2.7%	0.0%	1.3%	2.0%	#2.0	+0.27
8	Traffic Parrot	0.7%	0.9%	0.0%	0.0%	9.3%	#5.0	+0.60
9	Karate	0.0%	0.0%	0.0%	0.0%	0.0%	—	—

Developer Experience1/5 cited (20%)
What mocking platforms let me version-control my mock definitions in Git and review them like code?	A competitor was cited	A competitor was cited	A competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited

Integrations & Ecosystem2/5 cited (40%)
Which service virtualization platforms integrate with OpenAPI design tools so a spec change automatically updates the mock?	Your brand and a competitor were cited	A competitor was cited	A competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited

Performance & Reliability0/5 cited (0%)
What are the most reliable cloud-hosted mock API services for production-like staging environments?	A competitor was cited	A competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Key Metrics

Platform Breakdown

Overview

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Key Metrics

Platform Breakdown

Overview

Prompts where competitors are visible and Stoplight is not.

Where Stoplight is winning4

Where Stoplight is losing5

Key Facts

Key Capabilities9

Key Use Cases7

Stoplight customer outcomes

Recent Trend

How AI describes Stoplight3

Most cited sources4

Alternatives in API Mocking & Service Virtualization6

Reviews

Pricing

Limitations

Topic Coverage

Prompt-Level Results

Vertical Ranking

Turn this into your team dashboard

Frequently asked questions

Setup & First Run2/5 cited (40%)
Looking for a desktop app that lets me design and run mock REST endpoints offline for local dev -- what are my options?	A competitor was cited	A competitor was cited	A competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited	Neither your brand nor a competitor was cited

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Key Metrics

Platform Breakdown

Overview

Stoplight ranks #6 in API Mocking & Service Virtualization AI search.

Key Metrics

Platform Breakdown

Overview

Prompts where competitors are visible and Stoplight is not.

Where Stoplight is winning4

Where Stoplight is losing5

Key Facts

Key Capabilities9

Key Use Cases7

Stoplight customer outcomes

Recent Trend

How AI describes Stoplight3

Most cited sources4

Alternatives in API Mocking & Service Virtualization6

Reviews

Pricing

Limitations

Topic Coverage

Prompt-Level Results

Vertical Ranking

Turn this into your team dashboard

Frequently asked questions

What does Stoplight do?

Who is Stoplight best for?

How is Stoplight priced?

What are the alternatives to Stoplight?

What do users praise about Stoplight?

What are common complaints about Stoplight?

When was Stoplight founded and where?

How big is Stoplight?