
SENTINEL
io.github.teodorofodocrispin-cmykPublished by GitHub account teodorofodocrispin-cmykv1.0.1Updated Oct 24, 2026
Pre-execution safety oracle for AI agents. Screens Base contracts, simulates sells, pays via x402.
Overview
SENTINEL is a local MCP server that acts as a pre-execution safety oracle for AI agents, screening Base contracts and simulating sells, paid per call via x402.
- What you can do
- Screen Base blockchain contracts before an agent acts on them
- Simulate token sells to check outcomes before committing
- Pay for oracle calls autonomously through x402 using a funded wallet
- No individual tools are listed in the manifest, so exact operations are not documented.
- When to use it
- Worth considering when an AI agent is about to interact with contracts or tokens on the Base network and you want a safety check and sell simulation before execution.
- Requirements
- Runs as a local stdio process installed from the PyPI package sentinel-mcp, on desktop only. Requires the environment variable AGENT_WALLET_PRIVATE_KEY, a private key for a Base wallet holding USDC to pay for calls via x402. Network access to Base and the payment flow is implied.
Installation
In SourceWeft
- Open SENTINEL in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Tools
0Version history
1- v1.0.1LatestSep 16, 2026
Score
25% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
- License10 pts
Declare a license in the repository or the registry entry.