MarkupRelay — Web instructions for coding agents

Select elements, highlight text and share webpage instructions with Codex or Claude.

Point. Explain. Build. MarkupRelay turns webpage feedback into precise change requests for your coding agent. Select an element, highlight text or draw an area, then describe what should change. Keep adding notes while scrolling, and move the annotation panel whenever it covers your target. Each request includes your original wording and technical context: element references, DOM evidence, locators, styles, layout details and optional target screenshots. CONNECT YOUR CODING AGENT Choose Share with agents to upload the selected page to your MarkupRelay account. Connect your own Codex or Claude through secure OAuth and remote MCP. No Windows companion, Node.js installation or separate AI-provider API key is required. Plugin availability and invocation depend on your client. EXPORT YOUR FEEDBACK Export original notes, agent instructions, developer briefs or technical JSON. Print or save PDF. FREE AND PRO Free includes three saved pages and three cloud-shared pages. Local notes and exports require no account; cloud sharing requires a free account. Pro costs $9/month or $79/year and includes unlimited local pages within browser storage limits, two connected browsers, and up to 1,000 shared pages / 100 MB. Subscriptions renew automatically and can be canceled through your account. SHARE DELIBERATELY Unshared notes stay in your browser. Review notes, captured evidence and optional images before sharing. Stop sharing removes the active cloud copy. Shared pages expire after 30 days without updates. Content already retrieved by an agent cannot be recalled. Restricted browser pages, embedded frames, canvas contents and closed shadow roots have capture limitations. Your coding agent must verify the relevant source before changing it. Setup: https://markuprelay.com/setup.html Privacy: https://markuprelay.com/privacy.html Support: support@nwavecloud.com An independent product. No affiliation with or endorsement by OpenAI or Anthropic.