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Postman

Builds tools for designing and testing APIs

Overview

Postman builds software for developers and engineering teams to design, test, document and monitor APIs, the interfaces through which applications exchange data. Its desktop and web tools send requests to services, inspect responses and save related requests as collections that teammates reuse. Shared workspaces keep those collections, tests and technical specifications together so organizations coordinate API development across projects, while monitors check services on a schedule. The company sells subscriptions for individuals, teams and large enterprises, alongside a free plan for basic work. Founded in 2014, Postman is headquartered in San Francisco, California.

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About Postman

Simplify's Rating
Why Postman is rated
A-
Rated A on Competitive Edge
Rated A on Growth Potential
Rated B on Differentiation

Industries

Enterprise Software

Company Size

501-1,000

Company Stage

Series D

Total Funding

$434M

Headquarters

San Francisco, California

Founded

2014

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Simplify's Take

What believers are saying

  • Time off has no fixed allowance: Postman gives all full-time employees unlimited paid leave.
  • Customer value is measurable: Paddle reports Postman reduced time to its first API call by 50%.
  • Enterprise upgrades add buying reasons: Postman reserves private API networks and advanced organization controls for its Enterprise plan.

What critics are saying

  • Office collaboration shapes the job: Postman describes its workplace as hybrid.
  • Local-first competition removes cloud friction: Bruno stores API collections locally and requires no cloud sync or account.
  • AI-heavy customers face variable bills: Postman charges paid plans for credits beyond their included AI allowance.

What makes Postman unique

  • API publishers reach developers inside Postman: its public Network distributes collections that users discover and fork.
  • Postman makes diagrams executable: Flows lets teams run and debug visual API workflows.
  • Postman turns API definitions into libraries: its generator builds client kits in nine programming languages.

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Funding

Total Funding

$434M

Above

Industry Average

Funded Over

6 Rounds

Series D funding is typically for companies that are already well-established but need more funding to continue their growth. This round is often used to stabilize the company or prepare for an IPO.
Series D Funding Comparison
Above Average

Industry standards

$77M
$70M
$80M
$100M
$225M

Benefits

  • Accidental Death & Dismemberment Insurance.
  • Dental Insurance.
  • Disability Insurance.
  • Flexible Spending Account (FSA)
  • Health Savings Account (HSA)
  • Life Insurance.
  • Mental Health Care.
  • Occupational Accident Insurance.

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

0%
Associated Press
Jun 17th, 2026
Postman achieves AWS AI Competency and launches Kiro integration for AI-native API development

Postman, used by over 40 million developers and 500,000 organisations including 98% of the Fortune 500, has achieved AWS AI Competency in the Agentic AI Tools category. The designation recognises Postman's expertise in enabling organisations to build, test and manage APIs that power AI systems on AWS. The company introduced a new integration with Kiro, AWS's agentic IDE, alongside deeper integrations with Amazon Bedrock and Amazon API Gateway. Postman's MCP server enables developers to access API context, generate code, run tests and create mock servers directly within Kiro. Postman's AI assistant, Agent Mode, now runs on Anthropic Claude via Amazon Bedrock, providing enterprise-grade security and compliance. The company also announced general availability of its API Catalog integration with Amazon API Gateway.

Yahoo Finance
Apr 16th, 2026
Postman expands AI model choice with Microsoft Foundry, integrates Azure API Management

Postman has announced a collaboration with Microsoft to expand AI capabilities and API governance tools for developers. The company's Agent Mode now supports OpenAI models on Microsoft Foundry, giving teams flexibility in choosing AI models whilst maintaining security and compliance controls. The partnership introduces integrations with Azure API Management and Microsoft Teams to enhance collaboration. Agent Mode, an AI-powered assistant built into Postman, provides reasoning capabilities from leading model providers and is designed to streamline API workflows across the full development lifecycle. The collaboration aims to help enterprise development teams move from API discovery to production with unified, AI-powered tools. Postman CEO Abhinav Asthana said the integration gives platform engineering teams flexibility to deploy AI workflows without sacrificing governance and test coverage needed for trustworthy agents at scale.

Associated Press
Mar 31st, 2026
Postman integrates Anthropic's Claude to bring AI-native API development to 40M developers

Postman, the API platform used by over 40 million developers, has integrated Anthropic's Claude model to power its Agent Mode feature. The AI assistant runs on Amazon Bedrock, providing enterprise-grade security and compliance controls. Agent Mode operates within developers' Postman workspaces, using Claude's reasoning capabilities to generate API collections, debug requests, maintain documentation and keep code synchronised. Developers can also access Postman workspaces directly from Anthropic's tools, including Claude Code and Claude.ai. The integration allows developers to search workspaces, generate client code, run API tests and create mock servers without switching tools. Postman, which serves 500,000 organisations including 98% of Fortune 500 companies, reports that users engaging with Agent Mode show consistently higher usage rates.

Associated Press
Mar 12th, 2026
Dynatrace and Postman integrate AI-powered observability into API workflows with Agent Mode

Dynatrace has expanded its partnership with Postman to integrate AI-powered observability into Postman's Agent Mode, enabling developers to access real-time production data directly within their API workflows. The Dynatrace Model Context Protocol Server is now available in the Postman API Network. The integration allows developers to connect Agent Mode with Dynatrace observability data, surfacing trusted telemetry and correlating API behaviour with live production information. Teams can test APIs, analyse failures and resolve issues using natural language within a single workflow, reducing friction between development and operations. Postman Agent Mode is an AI agent that helps teams build, test and manage APIs using context from existing collections, code and governance standards. The Dynatrace MCP Server is now available via the Postman API Network.

Pulse 2.0
Jan 8th, 2026
Postman acquires Fern to expand API documentation and SDK capabilities

Postman has acquired Fern, a developer experience company specialising in API documentation and SDK generation, though financial terms were not disclosed. The deal aims to enhance Postman's API collaboration platform as companies increasingly treat APIs as products. Founded in 2022 and based in New York, Fern offers two core products: Fern Docs for customisable API documentation and Fern SDK Generator, which produces client SDKs across nine programming languages. More than 200 companies, including Square, Auth0 and Twilio, use its tools. The entire Fern team will join Postman whilst maintaining Fern's existing product, brand and roadmap. Postman's platform serves over 40 million developers and approximately 500,000 organisations worldwide, including 98% of the Fortune 500, providing Fern with significant distribution reach.

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