Warrant
Rank #3,027io.github.s0fractal/warrant
Record an agent's decisions with reasons anyone can re-execute offline — verify recomputes them.
Warrant is a Model Context Protocol (MCP) server published by s0fractal. It ranks #3,027 of 132,046 servers tracked on MCP Toplist, and its repository has 5 GitHub stars. Warrant is listed on Official MCP, with 3 tracked versions. It was first listed on Jul 30, 2026 and most recently updated on Aug 1, 2026.
Ranks ahead of 129,019 of 132,046 servers on MCP Toplist.
Use Warrant
No credentials or required configuration declared — add it to your MCP client and go.
claude mcp add warrant -e "WARRANT_STORE=<your WARRANT_STORE>" -e "WARRANT_KEY=<your WARRANT_KEY>" -e "WARRANT_ACTOR=<your WARRANT_ACTOR>" -- uvx warrant-verifyReplace each placeholder with your own value before saving.
[mcp_servers.warrant]
command = "uvx"
args = ["warrant-verify"]
[mcp_servers.warrant.env]
WARRANT_STORE = "<your WARRANT_STORE>"
WARRANT_KEY = "<your WARRANT_KEY>"
WARRANT_ACTOR = "<your WARRANT_ACTOR>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"warrant": {
"command": "uvx",
"args": [
"warrant-verify"
],
"env": {
"WARRANT_STORE": "<your WARRANT_STORE>",
"WARRANT_KEY": "<your WARRANT_KEY>",
"WARRANT_ACTOR": "<your WARRANT_ACTOR>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"warrant": {
"command": "uvx",
"args": [
"warrant-verify"
],
"env": {
"WARRANT_STORE": "<your WARRANT_STORE>",
"WARRANT_KEY": "<your WARRANT_KEY>",
"WARRANT_ACTOR": "<your WARRANT_ACTOR>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"warrant": {
"type": "stdio",
"command": "uvx",
"args": [
"warrant-verify"
],
"env": {
"WARRANT_STORE": "<your WARRANT_STORE>",
"WARRANT_KEY": "<your WARRANT_KEY>",
"WARRANT_ACTOR": "<your WARRANT_ACTOR>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"warrant": {
"command": "uvx",
"args": [
"warrant-verify"
],
"env": {
"WARRANT_STORE": "<your WARRANT_STORE>",
"WARRANT_KEY": "<your WARRANT_KEY>",
"WARRANT_ACTOR": "<your WARRANT_ACTOR>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"warrant": {
"command": "uvx",
"args": [
"warrant-verify"
],
"env": {
"WARRANT_STORE": "<your WARRANT_STORE>",
"WARRANT_KEY": "<your WARRANT_KEY>",
"WARRANT_ACTOR": "<your WARRANT_ACTOR>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.s0fractal%2Fwarrant)<a href="https://mcptoplist.com/server/io.github.s0fractal%2Fwarrant"><img src="https://mcptoplist.com/badge/io.github.s0fractal%2Fwarrant.svg" alt="MCP Toplist: Top 5% of 132,046" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry
s0fractal
Available versions (3)
| Version | Published |
|---|---|
| 0.9.0 | Aug 1, 2026 |
| 0.8.0 | Aug 1, 2026 |
| 0.1.0 | Jul 31, 2026 |
Frequently asked questions
- Who maintains Warrant?
- Warrant is maintained by s0fractal, which publishes 1 MCP server (3 total versions) tracked on MCP Toplist.
- Is Warrant listed on the Official MCP Registry?
- Yes — Warrant is listed on the Official MCP Registry.
- How many versions does Warrant have?
- MCP Toplist tracks 3 versions of Warrant, most recently published on Aug 1, 2026.
- Where can I find the source code for Warrant?
- The source code for Warrant is hosted at github.com/s0fractal/warrant.
Do you run this server?
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