ProofGraph (Antigravity MCP)

Evidence-first entity and knowledge graph MCP server for AI agents to verify claims.

Connector by AI-BuildInfra · GitHub account verified by the MCP Registry

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About

Evidence-first entity and knowledge graph MCP server for AI agents to verify claims.

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 10 read · 0 write · 0 delete · 2 not yet classified
Secrets: None asked for
Install scripts: Not scanned yet

Tools by what they do 12

Read from the source code; the running server may list different tools.

Read 10 · Look things up without changing anything.

analyze_web_presence
audit_entity_consistency
compare_claims
explain_entity
find_evidence
find_relationships
get_entity
get_evidence_packet
search_entities
verify_claim

Not yet classified 2 · We could not tell from the name and description.

export_graph
trace_claim

Tools (12)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

analyze_web_presence
Analyze an entity digital footprint across official, GitHub, package registry, documentation, and 3rd-party sources.
audit_entity_consistency
Diagnostic audit to detect inconsistencies across company name, domains, GitHub orgs, npm scopes, and Schema.org markup.
compare_claims
Compare multiple potentially conflicting claims and expose discrepancies without arbitrary bias.
explain_entity
Return a concise, factual entity profile backed by verified sources and structured relationships.
export_graph
Export the verified knowledge graph to standard interoperable formats (JSON, JSON-LD, CSV, GraphML).
find_evidence
Retrieve compact, ranked supporting evidence for a claim under a strict token budget.
find_relationships
Discover 1-hop, 2-hop, or 3-hop relationships and connecting graph paths starting from an entity.
get_entity
Retrieve canonical information, aliases, metadata, and connected relationships for a specific entity ID.
get_evidence_packet
Primary AI agent retrieval interface: returns the smallest verified evidence packet sufficient to answer a question.
search_entities
Search for candidate entities by name, alias, or keyword using multi-signal matching.
trace_claim
Trace the complete provenance chain for a claim (Claim -> Evidence -> Source -> URL -> Timestamp -> Hash).
verify_claim
Verify an assertion or claim against cryptographic, timestamped evidence sources.

Signals

Stars: 1
Forks: 0
Open issues: 0
Last commit: Sep 26, 2026 (1 month ago)
Last release: Sep 25, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.AI-BuildInfra/proof-graph
Version: 1.0.0
License: MIT
Repository: github.com/AI-BuildInfra/proof-graph
Website: aibuildinfra.com/proofgraph/
First seen: Oct 24, 2026
Last checked: Oct 25, 2026
Source: Official MCP Registry github-graphql

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ProofGraph (Antigravity MCP). Agent Mart. https://agentmart.dev/connectors/ai-buildinfra-proof-graph (last updated 2026-10-25)