eXcalibur MCP

Item: eXcalibur MCP
Rating: 74
Author: M8ven

Enables AI agents to post richly formatted tweets to X (Twitter) with optional images, monetized via Bitcoin Lightning micropayments and secured with OAuth2 PKCE, Nostr identity, and encrypted credential vaulting.

→ lonniev/excalibur-mcp · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCF_PAGES_COMMIT_SHA

configCOMMIT_SHA

configFASTMCP_CLOUD_GIT_COMMIT_SHA

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/lonniev-excalibur-mcp-k0nx5a)](https://m8ven.ai/mcp/lonniev-excalibur-mcp-k0nx5a)

commit: 23fc091a5222ea3bf55daa526a839c2407f5e64a

code hash: 6b4cccfe65aec873bd898693f6b81a0ef1ddf51ce1c9207de6572a993aa8d9d3

verified: 7/31/2026, 9:17:36 AM

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