Toolcallwitness Mcp
Record and audit what your coding agent actually invoked so you can debug mistakes, billing disputes, and compliance questions.
Overview
ToolCall Witness MCP is a MCP server for the Operate phase that witnesses and audits AI agent tool calls over a remote HTTP endpoint.
What is this MCP server?
- Witness layer on top of AI agent tool calls
- Audit-oriented tagging for remote MCP workflows
- Streamable-http hosted endpoint (v1.0.0)
- Bearer token authorization from product website
- Open-source repository on GitHub (clauxel/tool-call-witness-mcp)
- Server version 1.0.0
- Registry tags: tool-calls, audit, remote-mcp
- Remote URL: toolcallwitness.clauxel.com/mcp
What problem does it solve?
You cannot reliably prove which MCP tools an agent ran when something breaks, costs spike, or a user asks what changed.
Who is it for?
Builders running autonomous agents in production who need an audit trail for tool calls without building a custom logger.
Skip if: Hobby one-off prompts with no compliance, billing, or incident review requirements.
What do I get? / Deliverables
Tool invocations gain a witness and audit layer you can query through MCP instead of reconstructing sessions from chat transcripts alone.
- Witnessed records of agent MCP tool invocations
- Audit-friendly remote MCP integration for operate monitoring
- Reference implementation via published GitHub repository
Recommended MCP Servers
Journey fit
Witnessing tool calls matters after agents run in real workflows; operate is where builders need durable evidence of autonomous actions. Monitoring is the right shelf for an audit trail over MCP tool invocations rather than authoring new tools in build.
How it compares
MCP audit witness for tool calls, not a security scanner or local git hook.
Common Questions / FAQ
Who is ToolCall Witness MCP for?
Solo builders and small teams operating agent workflows who need trustworthy records of MCP tool invocations for debugging and accountability.
When should I use ToolCall Witness MCP?
Use it once agents routinely call tools in operate workflows—after ship—when you need monitoring-grade visibility into what ran and when.
How do I add ToolCall Witness MCP to my agent?
Obtain a bearer token from toolcallwitness.clauxel.com, register the remote MCP URL https://toolcallwitness.clauxel.com/mcp with Authorization header support in your MCP client.