Postcept runs on your own machine — the client starts it, so there is no endpoint to ping. 31 installs a week from npm. Last commit 22 Jul 2026.
Verify agent actions against the system of record and get signed completion receipts.
Nothing serious here today
Today is the operative word: we check Postcept every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
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 mcp -e 'POSTCEPT_API_KEY=<POSTCEPT_API_KEY>' -- npx -y @postcept/mcp{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@postcept/mcp"
],
"env": {
"POSTCEPT_API_KEY": "<POSTCEPT_API_KEY>"
}
}
}
}[mcp_servers.mcp]
command = "npx"
args = ["-y", "@postcept/mcp"]
env = { POSTCEPT_API_KEY = "<POSTCEPT_API_KEY>" }{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@postcept/mcp"
],
"env": {
"POSTCEPT_API_KEY": "<POSTCEPT_API_KEY>"
}
}
}
}{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@postcept/mcp"
],
"env": {
"POSTCEPT_API_KEY": "<POSTCEPT_API_KEY>"
}
}
}
}Put your own value in place of
<POSTCEPT_API_KEY> (Postcept API key).
The author’s registry entry marks it as required.
Alternatives to Postcept
same job, measured the same wayThe record layer for the machine age: counter-signed receipts and agent action records.
Exact-action approval for consequential agent actions: request, track, and verify signed receipts.
Independent effect verification and signed receipts for consequential AI agent actions.
The record of what the agent relied on: a signed, chained receipt per cleared read. Verify by id.
Paid agent work and paid verification, settled in USDC. Verified outcomes get signed receipts.
Agent completion verification with defects, corrections, and evidence receipts.
Issue & verify signed (ed25519), hash-chained, timestamped provenance receipts for agent actions.
Governance layer for agentic AI — signed, verifiable receipts for every agent action.
Postcept — questions
Answers built from our own checks of this server.