API client · Postman, Inc.

Postman

API platform with a free plan, a desktop app, a web app and a command-line tool.

78/100

#3 of 11 API clients
Facts checked 8 Oct 2026

In short

The Free plan covers 1 user; Solo costs $9 a month, billed yearly¹.
Team costs $19 per user a month, billed yearly; single sign-on needs the Team plan's Simple Security add-on at $6 per user a month^1,6.
Built-in request types include GraphQL, gRPC and WebSocket⁴.
Postman names SOC 2 Type II and ISO 27001 certification⁵.
The app's source code is not public; the GitHub repository holds issues and release notes¹¹.

Postman suits teams that want shared cloud workspaces, mock servers and published docs behind one login¹. Solo at $9 a month and Free both include the CLI and mock servers¹. The catch: the app is closed source, Server-Sent Events are not listed as a request type, and single sign-on is an extra purchase on Team^4,6,11.

Best for: Teams that want shared workspaces, mock servers and published docs in one place.

Where the points come from

Systems10 of 10

Requests and protocols30 of 33

Your data8 of 22

Teams and trust16 of 16

Price14 of 19

Systems 10 of 10 points

Rule	What is published	Points
Other systems	macOS, Linux, Web appDesktop app for Mac and Linux, plus Postman on the web².	6 / 6
Command-line runner	YesPostman CLI is listed on all plans and installs with npm^1,2.	4 / 4

Requests and protocols 30 of 33 points

Rule	What is published	Points
Built-in protocols	GraphQL, gRPC, WebSocketDocs list HTTP, GraphQL, gRPC, WebSocket and MQTT; Server-Sent Events are not named⁴.	9 / 12
Imports OpenAPI	YesCollections can be generated in one click from OpenAPI schemas³.	4 / 4
Scripts and tests	YesScripts run before a request or after a response, with test scripts that validate the response⁸.	8 / 8
Collection runner	YesThe Collection Runner chains requests together to test workflows³.	3 / 3
Mock servers	YesMock servers are listed on all plans¹.	3 / 3
Publishes API docs	YesDocs publishing is listed on all plans; free docs are Postman-branded¹.	3 / 3

Your data 8 of 22 points

Rule	What is published	Points
Works without an account	Not publishedNot published on the vendor's installation page⁷: it says only that the lightweight client sends requests when signed out.	0 / 8
Collections as plain files	YesNative Git keeps collections as files in a project folder, on every plan; file format is not stated^1,9,10.	8 / 8
Open-source apps	NoThe public GitHub repository holds issues and release notes, not the app's source code¹¹.	0 / 6

Teams and trust 16 of 16 points

Rule	What is published	Points
Shared team workspaces	YesTeam plan adds collaboration in shared workspaces¹.	7 / 7
SAML or OIDC single sign-on	YesSAML 2.0 single sign-on on Enterprise, or Team with the Simple Security add-on⁶.	4 / 4
SOC 2 Type II or ISO 27001	YesThe trust page says SOC 2 Type II certified and ISO 27001 certified⁵.	5 / 5

Price 14 of 19 points

Rule	What is published	Points
Free plan	YesFree plan for 1 user at $0¹.	10 / 10
Cheapest paid plan	$9/moSolo, $9 a month billed annually¹.	4 / 9

The rule behind each line: how we score API clients.

Plans and prices

As the vendor lists them, before tax. Prices are in US dollars unless the plan shows euros; the points use US dollars, with euros converted at the ECB rate.

Plan	Price as listed	Per month	Notes
Free1 user	Free¹	$0	Mock servers, CLI and Native Git included
Solo1 person	$9/month¹	$9	Billed yearly; adds custom-branded docs and the multi-protocol runner
TeamTeams	$19/user/month¹	$19	Billed yearly; adds collaboration and basic roles
EnterpriseOrganisations	Contact sales¹	Quote	Includes single sign-on

Prices are shown billed annually; the pricing page shows no monthly-billed price¹.

Strengths

Mock servers, the Postman CLI and Native Git are listed on every plan, including Free¹.
Imports OpenAPI files into a collection in one click³.
Pre-request and post-response scripts with test checks are documented⁸.
Names SOC 2 Type II and ISO 27001 certification⁵.
Collections can live as files in a Git project folder through Native Git^9,10.

Limits

The app's source code is not public¹¹.
Server-Sent Events are not named among the request types⁴.
Single sign-on needs the Simple Security add-on on Team, or an Enterprise plan⁶.
Free docs carry Postman branding and cannot use custom domains¹.

Other API clients

1
InsomniaPeople who want an open-source client with GraphQL, gRPC, WebSocket and SSE screens
85/100
$10/mocheapest paid plan
2
BrunoDevelopers who want collections in their own repository and no account
82/100
$6/mocheapest paid plan
4
ApidogSmall teams that want design, testing, mocking and docs in one tool
70/100
$9/mocheapest paid plan
5
HoppscotchDevelopers who want an MIT-licensed client with real-time protocols
69/100
$6/mocheapest paid plan

Postman vs Insomnia · Postman vs Bruno · All 11 API clients

Sources

Postman pricing, Postman. Accessed 8 Oct 2026.
Download Postman, Postman. Accessed 8 Oct 2026.
Postman API client, Postman. Accessed 8 Oct 2026.
Request basics, Postman Docs. Accessed 8 Oct 2026.
Postman trust and security, Postman. Accessed 8 Oct 2026.
Intro to SSO, Postman Docs. Accessed 8 Oct 2026.
Installation and updates, Postman Docs. Accessed 8 Oct 2026.
Scripts and tests, Postman Docs. Accessed 8 Oct 2026.
Sync local and cloud elements, Postman Docs. Accessed 8 Oct 2026.
Native Git overview, Postman Docs. Accessed 8 Oct 2026.
postmanlabs/postman-app-support, GitHub. Accessed 8 Oct 2026.

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