Synapse (Synapse Research Ltd, Tel Aviv) builds software and the search demand for it. These are tools we wrote for our own site and then made general.
| Tool | What it does | Docs |
|---|---|---|
| answer-engine-benchmark | Asks ChatGPT, Gemini, Perplexity and Claude your buyers' questions, three times each, and counts how often they cite you. Python. | synapsereality.io/open-source/answer-engine-benchmark |
| answer-crawler-check | Fails your build when robots.txt blocks an AI answer crawler from any page in your sitemap. Node.js CLI and GitHub Action. | synapsereality.io/open-source/answer-crawler-check |
| one-hop | Checks a redirect map after a site move: every old URL must reach its new URL in one permanent redirect. Python CLI and GitHub Action. | synapsereality.io/open-source/one-hop |
All three are MIT licensed.
We also built Live Tennis API. Its SDKs, examples and integrations are in their own organisation, github.com/livetennisapi.
We built Fax for Agents as well. It is a fax API, a hosted MCP server and SDKs that let AI agents send and receive faxes, with a receipt for every job. The SDKs, the MCP server and the examples live in github.com/faxforagents, and the sandbox is free. How we built it is on our site.
Bug reports and pull requests are welcome on each repo. Read CONTRIBUTING.md first. It's short. Security problems go to ben@synapsereality.io, not to a public issue (SECURITY.md).
ben@synapsereality.io or synapsereality.io/contact. Everything else we have published or had merged upstream is listed at synapsereality.io/open-source.