Alternatives

Products that do what API Spector does

SHARP EYES ON EVERY API

1
ApiHome▲73
Home of API testing
2022
2
APIEval-20▲121
An open benchmark for AI agents that test APIs
May 2026
3
Visual Swagger Editor for Teams▲89
Link your app design to API calls
2022
4
Aspen▲190
Blazing fast API tester with AI helper & no login required
2024
5
MockAPI Dog▲122
Instant mock REST & LLM APIs - free, no signup required
Feb 2026
6
Swagger Inspector▲141
Free online tool to test APIs and autogenerate documentation
2018
7MO
Mockit – Open-source app to create and configure HTTP mocked endpoints▲158
2019 · mockit.netlify.com
8
Mocklets▲82
A HTTP-based API simulator to assist parallel development 🛠️
2018
9
API Flow Integration Tool▲73
Powerful tool for API flow integration, testing, prototyping
2020
10
Swagger Editor▲207
Beautiful API references from Swagger, OpenAPI spec
2023
11
Akto's Test Editor▲143
Your playground for writing custom API security tests
2023
12
create-api.dev by Kong▲150
Generate and share OpenAPI specs with AI
2025
13
Mockoon▲89
Mock servers in seconds
2017
14
API Tester▲209
The easiest way to test APIs
2017
15
ApiChecker▲104
Reliable uptime and performance monitoring for your services
2019
16
Mock Maker▲93
Effortless mock APIs for seamless testing & prototyping
2024
17MM
Mockoon – mock REST APIs in seconds▲68
2017 · mockoon.com
18
MockingBot▲82
A rapid prototyping, design collaboration and handoff tool
2018
19
Voiden: API Work, Done Better▲46
Build, Test & Document APIs in Plain text files with blocks
Jan 2026
20MS
Mocktastic – Simple, Offline mock REST APIs for your entire team▲43
2018 · mocktastic.com
21OS
Open-Source Web/API Monitoring Tool▲7
2021 · github.com
22DT
Declarative Testing Framework for REST, GraphQL APIs▲45
2018 · github.com
23AF
A free, open-source, collaborative, mock API▲5
2021 · mockachino.com
24WA
Web App for generating mocked data from an OpenAPI specification▲19
2020 · github.com

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