Prism
PulseGate's liveness check found it on 14 Oct 2026; it is registered on GitHub and has been in the index since 27 Jun 2026. How this is checked
Prism is an open-source tool for API developers to create HTTP mock and proxy servers powered by OpenAPI documents. It enables rapid prototyping, testing, and validation of APIs before backend code is written. Prism supports dynamic examples, validation, and mocking callbacks, making it ideal for API development workflows.
Inferred · not functionally tested
Overview
6 featuresPurpose: Simulating and testing APIs with realistic mock servers before backend implementation.
Inferred · not functionally tested
Audience: API developers and testers
Inferred · not functionally tested
Functions: Unknown
Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)
Recorded constraints: pricing: open_source · license: Apache-2.0 · platforms: API, WEB · deployment: browser, cli, api_only, self_hosted
Constraint provenance is unknown; confirm requirements with the publisher.
Record sources: stoplight.io · github.com. These links do not verify the individual claims.
Prism sits in PulseGate's API design, testing & docs category. Inferred · not functionally tested: It focuses on simulating and testing APIs with realistic mock servers before backend implementation. Inferred · not functionally tested: Prism is an open-source project aimed at API developers and testers. Basis unknown · not verified: The project is open source (Apache-2.0). Basis unknown · not verified: It ships for the web, the command line, and API, and it can be self-hosted.
Behind Prism is Stoplight, and it first shipped in 2018. Development happens publicly on GitHub with 5k stars and 36 commits in the last 90 days. Inferred · not functionally tested: Key capabilities include HTTP mock server, proxy server, and openAPI support.
Summary written by a language model from the project’s public pages.
Tasks: Inferred · not functionally tested
- HTTP mock server
- Proxy server
- OpenAPI support
- Dynamic examples
- Validation
- Mocking callbacks
Topics: Inferred · not functionally tested
Built with & integrations
- Cloudflare
- cf-ray header · cf-cache-status header
Trust & compliance
Indexing history
What PulseGate has recorded for this listing
Frequently asked questions about Prism
- What does Prism do?
- Inferred · not functionally tested: Prism focuses on simulating and testing APIs with realistic mock servers before backend implementation. It is catalogued under API design, testing & docs on PulseGate.
- Who is Prism for?
- Inferred · not functionally tested: Prism is an open-source project built for API developers and testers.
- Does Prism have a free plan?
- Basis unknown · not verified: Yes — Prism is open source under the Apache-2.0 license and free to use.
- What platforms does Prism run on?
- Basis unknown · not verified: Prism runs on the web, the command line, and API. It can also be self-hosted.
- Is Prism still active?
- PulseGate's liveness check found it on 14 Oct 2026. Its GitHub repository shows 36 commits in the last 90 days.
- Who makes Prism?
- Prism is developed by Stoplight.
- How long has Prism been around?
- Prism first shipped in 2018.
- Is Prism open source?
- Basis unknown · not verified: Yes — Prism is open source under the Apache-2.0 license, developed on GitHub.
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