# Lightrun — AI Connector Lightrun publishes 14 MCP tools to Claude. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/developer-tools/lightrun/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Developer Tools](https://node8.ai/ai-connectors/developer-tools/) # Lightrun Live runtime snapshots and metrics from running applications Listed in Claude · 14 published tools · Community-listed [Claude connector docs](https://docs.lightrun.com/mcp/mcp-overview/) [lightrun.com](https://lightrun.com/) Overview ## What Lightrun does Lightrun adds temporary instrumentation to applications that are already running, with no code change, rebuild, or redeploy. The connector describes bringing that into a conversation: discovering connected agents, agent pools, and tags, capturing expression values and call stacks at a chosen code location, counting how often a line executes, measuring duration between two lines, sampling custom numeric metrics, and reading raw measurement samples for closer analysis. Runtime data stays subject to the organisation's redaction and permission rules. Authentication is either OAuth for interactive sessions or a bearer API key with developer scope for automation. Fourteen tools are published, and the prerequisites are a Lightrun server, MCP access enabled for the organisation, and agents attached to the target applications. ### Who it is for Backend engineers debugging behaviour in production or staging environments. ### Tool surface The server rejected the listing request outright, so the fourteen published tools cannot be checked, and a product that reads live production state is an unsurprising place to meet that gate. Availability ## Where Lightrun is listed Lightrun is listed in the Claude connectors directory only. Lightrun has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them. The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one. Claude listing ## In the Claude connectors directory Lightrun publishes 14 tools to Claude. That is a mid-sized surface: 56.6% of the 1,253 Claude-listed connectors expose fewer. The median Claude-listed connector filed under Developer Tools publishes 13, so this one runs one tool above its bucket's median and ranks 47th of 95 by tool count. It falls in the 11-20 tools band, which holds 22.5% of the Claude directory. Lightrun publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher Lightrun Verification Community-listed (61.5% of the Claude directory) Filed under Developer Tools Endpoint `https://app.lightrun.com/mcp` Documentation [Publisher setup docs](https://docs.lightrun.com/mcp/mcp-overview/) Published tools 14 · 11-20 tools band Depth rank in Developer Tools 47 of 95 Snapshot August 2026 Lightrun is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality. In the publisher's words ## How Lightrun describes it > Lightrun MCP connects your AI assistant to real runtime data from applications already running in production, staging, or development. Built on the Model Context Protocol, it lets Claude investigate live code behavior on your behalf—without changing code, rebuilding, or redeploying. \*\*What you can do\*\* - Discover connected agents, agent pools, and tags in your environment - Capture expression values and call stacks at specific code locations (snapshots) - Count how often a line executes - Measure execution duration between two lines (TicToc) - Sample custom numeric metrics from live code - Drill into raw measurement samples for deeper analysis \*\*Why use it\*\* Lightrun brings production-safe, on-demand observability into natural-language workflows. Instead of configuring probes manually, describe what you need and let the AI discover targets, place temporary instrumentation, and analyze results. Runtime data is subject to your organization’s PII redaction and permission rules. \*\*How it works\*\* Your AI assistant acts as an MCP client and connects to your Lightrun server at \`/mcp\`. The Lightrun MCP server translates requests into safe runtime inspections executed by Lightrun agents attached to your applications. \*\*Authentication\*\* - OAuth for interactive use (sign in with your Lightrun user) - API key (Bearer token with Dev scope) for agents and automation \*\*Works great with Lightrun AI Skills\*\* Pair this connector with reusable investigation workflows from the Lightrun AI repository—preflight checks, evidence collection, diagnosis, and handoff output for live runtime debugging. \*\*Requirements\*\* - A Lightrun account and server (SaaS: https://app.lightrun.com) - MCP access enabled for your organization - Lightrun agents connected to the applications you want to inspect Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Developer Tools connectors ### [Resolve AI](https://node8.ai/ai-connectors/developer-tools/resolve-ai/) Production investigations and root-cause work inside coding agents Claude · ChatGPT ### [Apiiro Guardian](https://node8.ai/ai-connectors/developer-tools/apiiro-guardian/) Application security risk context from an Apiiro deployment Claude ### [Azure DevOps](https://node8.ai/ai-connectors/developer-tools/azure-devops/) Azure DevOps connection for Codex ChatGPT ### [Botpress](https://node8.ai/ai-connectors/developer-tools/botpress/) Agent prototyping on the Botpress platform ChatGPT ### [Deplixo](https://node8.ai/ai-connectors/developer-tools/deplixo/) Deploy a web app to a live URL in one call Claude ### [Ezoic Setup](https://node8.ai/ai-connectors/developer-tools/ezoic-setup/) Implementation help for Ezoic ad integration on websites Claude · ChatGPT [All 188 Developer Tools connectors](https://node8.ai/ai-connectors/developer-tools/) This is an independent catalogue entry compiled by Node8 from Lightrun's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Lightrun, and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session