Groundcheck
Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.
Connect it
Settings → Connectors → Add custom connector
URL: https://groundcheck.seiche.info/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://groundcheck.seiche.info/mcp{
"mcpServers": {
"groundcheck": {
"url": "https://groundcheck.seiche.info/mcp"
}
}
}claude mcp add --transport http groundcheck https://groundcheck.seiche.info/mcp{
"servers": {
"groundcheck": {
"type": "http",
"url": "https://groundcheck.seiche.info/mcp"
}
}
}{
"mcpServers": {
"groundcheck": {
"command": "npx",
"args": [
"-y",
"groundcheck-mcp@0.6.0"
]
}
}
}claude mcp add groundcheck -- npx -y groundcheck-mcp@0.6.05 tools, verified live
verify_claimread-onlyPURPOSE: Fact-check one claim against live retrieved sources and return a result you can GATE A DECISION ON, not just read. Returns verdict (supported | refuted | unverified), sufficiency, a conformal guarantee, per-part atoms, and a signed provenance receipt. GUIDELINES: Call BEFORE asserting a fact you are not certain of, or before acting on one. Branch on the fields: (1) sufficiency — 'sufficie
check_citationsread-onlyPURPOSE: Fact-check EVERY factual claim in a block of text and return a per-claim report — the batch form of verify_claim, for AI-generated drafts or documents before you publish or act on them. GUIDELINES: Call on any multi-claim text you are about to rely on. Each reported claim carries the same actionable fields as verify_claim (verdict, sufficiency — abstain/escalate on anything but 'sufficien
resolve_instrumentread-onlyPURPOSE: Resolve a security identifier (ticker, ISIN, CUSIP, SEDOL, FIGI) or an instrument name to canonical FIGI records via Bloomberg open symbology (OpenFIGI), WITH provenance and a signed receipt. Returns {matched, instruments: [...], provenance}. GUIDELINES: Call BEFORE acting on any claim, order, or document that names a security, so you know exactly WHICH instrument it refers to (disambigua
extract_claimsread-onlyPURPOSE: Split text into independently checkable ATOMIC factual claims — the cheap first step of a verification loop (extract -> ground -> attest). Returns {claims: [...], count, input_sha256} plus a signed receipt bound to the input hash. GUIDELINES: Call when you want to see WHICH claims a document makes before paying to ground them, to budget a verification pass (extract everything, then verify
attest_deliveryread-onlyPURPOSE: Neutral delivery verification for agentic commerce. You (or your principal) paid some OTHER service over x402 and got a response; this tool verifies what was delivered and returns a SIGNED, offline-verifiable delivery receipt binding payment -> delivery -> content: the settlement receipt (by hash + decoded tx fields), the exact response bytes (sha256), structural conformance to the schema
Alternatives in Developer Tools
Compare →
Compiler ExplorerA
Compile code with thousands of compilers, inspect the assembly, and share godbolt.org links
MIMiroOfficialA
Official Miro MCP server - Supports context to code and creating diagrams, docs, and data tables.
Context7A
Up-to-date code docs for any prompt
AAAirbyte AgentsOfficialA
Let AI agents query data and act across all your business apps via MCP.
VirusTotalOfficialA
Official VirusTotal MCP server: threat reports, file and URL submissions, and analysis recovery.
NENetdataA
Real-time infrastructure monitoring with metrics, logs, alerts, and ML-based anomaly detection.