Lossless Context MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 74 installs a week from npm. Last commit 5 Sep 2026.
Agent context flight recorder: restore after compaction, fan-out packs, signed git-bound receipts.
Today is the operative word: we check Lossless Context MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add lossless-context-mcp -- npx -y lossless-context-mcp
{
"mcpServers": {
"lossless-context-mcp": {
"args": [
"-y",
"lossless-context-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.lossless-context-mcp]
command = "npx"
args = ["-y", "lossless-context-mcp"]
{
"mcpServers": {
"lossless-context-mcp": {
"args": [
"-y",
"lossless-context-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"lossless-context-mcp": {
"args": [
"-y",
"lossless-context-mcp"
],
"command": "npx"
}
}
}
Verify agent actions against the system of record and get signed completion receipts.
Counter-signed evidence records for agent commerce: receipts, verification, dispute envelopes.
Portable signed records for agent, API, MCP, and cross-runtime interactions.
Resolve sourced merchant facts and safe actions before an agent acts.
Contract-change authorization for AI agents. Signed receipts verify offline.
Signed, hash-chained provenance receipts for AI agent actions.
Exact-action approval for consequential agent actions: request, track, and verify signed receipts.
Pre-action attestation perimeter for AI agents — 8 primitives, signed C18 receipt per call.
Answers built from our own checks of this server.