Search: graph
Search MCP servers and agent skills by name, description, category or topic — 259 results.
whyy9527/ariadne
Cross-service API dependency graph for microservice codebases. Give it a business term or endpoint name; get back a ranked chain of GraphQL operations, REST endpoints, Kafka topics, and frontend queries across all services. Offline, local SQLite + TF-IDF + optional embeddings.
PostOakLabs/ainumbers-mcp-apps
420+ deterministic fintech tools — agentic payments (AP2, x402, Visa TAP, A2A), AML/KYC risk rating, BaaS provider comparison, and MCP dev tooling (tool-definition linter, server.json validator, OAuth auditor, readiness scorecard) — with 15 flagship tools rendered as interactive MCP Apps widgets. Remote streamable HTTP, read-only, no auth, zero PII.
MakeaMouse/fish-bridge-mcp
Compresses AI chat sessions into a typed knowledge graph (~300–800 tokens). Works file-based in Copilot, Claude Code, Cursor, and Gemini CLI without MCP server mode. Supports local/offline extraction via Ollama — no API key required.
junnnnnw00/obsidian-everywhere
Graph-native Obsidian vault server with 31 tools for search, backlinks, n-hop neighborhoods, structured and paginated reads, and safe file, partial, and bulk edits with dry-run and rollback. Works with Codex, ChatGPT, Claude, and any MCP client. `npx -y obsidian-everywhere /path/to/vault`
TheGoatPsy/mneme
Vault-native, accountable memory for Claude Code and any MCP client. Markdown is the source of truth, no LLM on the Stop path, redaction before every derived store.
DuhoKim/NebulaMind
Collaborative astronomy wiki built by AI agents. 34 topics, 115 knowledge graph connections. Register, read, edit, vote, comment, and explore the cosmos via open API. No auth required.
teflon07/memkeeper
Local-first memory for AI agents: a single self-contained Rust binary over one SQLite file. Hybrid BM25/FTS + on-device ONNX embeddings + cross-encoder rerank; abstains instead of returning a confident wrong memory. No server, no API key, zero marginal cost. `memkeeper mcp`
xyver/daedal-map
Geographic data packs for disasters, FX rates, and global indicators. New geospatial data packs weekly. Free and x402-paid execution lanes via MCP and HTTP API.
beeswaxpat/chronoverify-mcp
Verify a photo's capture time and provenance before an agent trusts it: cryptographic C2PA Content Credentials validation against the official trust lists, EXIF and XMP consistency checks, and classical pixel forensics fused into one typed verdict with a 0 to 100 confidence. Free keyless tier, opt-in shareable verdict permalinks, and key-gated signed PDF audit reports. Provenance validation, not a
Declade/lucairn-sdks
Privacy-preserving AI gateway. Sanitises PII (German + English; Microsoft Presidio + custom recognisers) before prompts reach Anthropic / OpenAI / your LLM, then emits a signed cryptographic certificate per call (Ed25519 + RFC 3161 timestamp + Sigstore Rekor anchoring). EU GDPR + AI Act ready. Free tier 500 calls/month, BYOK. Install: `npx -y @lucairn/mcp-server`. Docs: https://lucairn.eu/develope
nikolay-e/diffctx
Selects the minimum code context an LLM needs to understand a git diff: graph-based fragment selection under a token budget, deterministic, 30+ languages. Published on PyPI and in the MCP Registry.
Regan-Milne/obsideo-mcp
Encrypted S3-compatible object storage with continuous cryptographic possession proofs. In-conversation signup (12 GB free), put/get/ls/rm/usage, optional client-side encryption; credentials stay on your machine.
trustscoreagent/trustscoreagent
Check the reputation of an AI microservice or public API *before* calling it, and submit ratings afterward — from a free, open trust registry (no account or API key). Scores combine Bayesian reputation and EigenTrust, strengthened by cryptographically signed service receipts and a Merkle audit trail. Install: `npx -y @trustscoreagent/mcp-server`.
carloshpdoc/memorydetective
iOS leak hunting and performance investigation. Reads `.memgraph` (`leaks(1)`) and `.trace` (`xctrace`) files, classifies retain cycles against a 34-pattern catalog (SwiftUI, Combine, Swift Concurrency, UIKit, Core Animation, Core Data, SwiftData, RxSwift, Realm), surfaces a Swift `fixTemplate` snippet for each match, and bridges to source via SourceKit-LSP. Single-call build+boot+launch fixes the
michael-denyer/memory-mcp
Two-tier memory with hot cache (instant injection) and cold semantic search. Auto-promotes frequently-used patterns, extracts knowledge from Claude outputs, and organizes via knowledge graph relationships.
CheMiguel23/MemoryMesh
Enhanced graph-based memory with a focus on AI role-play and story generation
elvismdev/mem0-mcp-selfhosted
Self-hosted mem0 MCP server for Claude Code with Qdrant vector search, Neo4j knowledge graph, and Ollama embeddings. Zero-config OAT auth, split-model graph routing, session hooks for automatic cross-session memory, and 11 tools. Supports both Anthropic and fully local Ollama setups.
hubinoretros/deep-thinker
Advanced cognitive reasoning MCP server with DAG-based thought graph, 5 reasoning strategies (sequential, dialectic, parallel, analogical, abductive), metacognitive engine with stuck detection, multi-factor confidence scoring, self-critique, knowledge integration, and thought pruning. `npx deep-thinker`
lorenzo-cambiaghi/LynxMCP
100% local semantic code search for AI agents: AST-aware chunking (tree-sitter), hybrid BM25+dense retrieval, and a code knowledge graph (callers, inheritance, imports) over codebases, docs sites, and PDFs. Install via `pipx install lynx-mcp`.
tribal-memory/tribal
Self-hosted semantic memory server, served over MCP, for an engineering team's tribal knowledge: the tacit decisions and hard-won reasoning behind the code, captured once and kept queryable for the team and the agents they work with. Postgres-backed (pgvector).
MAG-Cie/mcp-microsoft-todo
Microsoft To Do task management via Microsoft Graph API. MSAL device code flow (no client secret needed), persisted token cache, full MCP safety annotations.
turbyho/fw-context-mcp
Build-aware code intelligence for embedded C/C++ firmware. Indexes your project from compile_commands.json via libclang into SQLite+FTS5. 31 MCP tools for symbol search, call graphs, hotspot analysis, dead code detection, and vector search. For Zephyr, PlatformIO, Mbed OS, Arduino, FreeRTOS.
degenlegion-com/waxseal-sdk
On-chain Ed25519 identity for AI agents — verify seals by fingerprint, validate document signatures, and gate irreversible actions behind human-signed approval tokens. Hosted at `api.waxseal.id/mcp`; local install (`npx @waxseal/mcp`) for signing.
Nishant-Chaudhary5338/mcp-code-indexer
Index any TypeScript/React repo (including monorepos) into a queryable code graph. Reverse queries (who-renders, who-calls, find-references), blast-radius analysis, dependency cycles, dead-code orphans, and symbol signatures — exposed over stdio. Install: `npx code-graph-indexer`.
swapnanil/vectr
Semantic codebase search + persistent working memory for AI code editors. Hybrid dense + BM25 search over AST-aware chunks, a symbol graph for locate/trace, and typed notes that survive context compaction and session restarts. Local embeddings, zero config, no API key. `pip install vectr`
nonameuserd/paybond-kit
Tenant-bound MCP server for agent spend authorization, policy guardrails, evidence, escrow settlement, and portable receipts. Sandbox bootstrap, spend intents, and completion validation for Cursor and Claude Code. TypeScript: `npx -p @paybond/kit paybond login` then `npx -y -p @paybond/kit paybond-mcp-server`. Python: `pip install paybond-kit` then `paybond-kit-login` and `paybond-mcp-server`. [Do
jessedu29260-netizen/booboo
See and query your whole AI system as one rooted 3D knowledge graph — agents, memory, knowledge, and automations fused into a privacy-walled snapshot. MCP tools for stats, search, node dossiers, neighbors, and pathfinding; the same snapshot renders up to a million nodes in the browser. `npx create-booboo`
liftkkkk/owl-mcp
MCP server for OWL/TTL/RDF ontologies. Supports SPARQL queries, HermiT/Pellet reasoning, and CRUD operations on knowledge graphs. Works with Claude Desktop, Cursor, and Windsurf.
atakanelik34/Bilinc
Hosted agent memory that keeps an audit trail. Three tools — `commit_mem`, `recall`, `status` — where each write carries provenance (which run, tool, or operator produced it), contradictions with prior state surface as inspectable changes rather than silent overwrites, and a bad run is recovered from a snapshot instead of repaired by hand. `pip install -U bilinc`
conorbronsdon/op3-mcp
Podcast analytics from OP3, the Open Podcast Prefix Project: downloads over time, listener geography, app share, and per-episode breakdowns. Read-only by design.
OrgMentem/zotio
Zotero MCP server (`zotio-mcp`) with a capability-tagged tool registry and preview-first, journaled writes (an agent can't silently mutate or delete your library). Reads work keyless against the local Zotero desktop API; writes route to the Web API. Ships an MCPB bundle for one-click Claude Desktop install.
AceDataCloud/MCPSerp
Google SERP search including web, images, news, maps, places, videos, and knowledge graph results via Ace Data Cloud API.
pomazanbohdan/memory-mcp-1file
A self-contained Memory server with single-binary architecture (embedded DB & models, no dependencies). Provides persistent semantic and graph-based memory for AI agents.
danieldoderlein/llm-bus
Multi-agent coordination bus over MCP: atomic gap-free claims, advisory file leases, a shared event ledger, presence, prose handoffs, and a task graph, so multiple coding agents (Claude Code, Cursor, Codex) stop colliding and re-deriving each other's work. Remote Streamable HTTP; self-hostable (AGPL-3.0) or hosted at llm-bus.com.
SidneyBissoli/ibge-br-mcp
Brazilian Census Bureau (IBGE) data server with 23 tools for demographics, geography, economics, and statistics. Covers localities, SIDRA tables, Census data, population projections, and geographic meshes.
HagaiHen/facebook-mcp-server
Integrates with Facebook Pages to enable direct management of posts, comments, and engagement metrics through the Graph API for streamlined social media management.
pranciskus/newsmcp
Real-time world news for AI agents — events clustered from hundreds of sources, classified by topic and geography, ranked by importance. Free, no API key. `npx -y @newsmcp/server`
MikeRecognex/mcp-codebase-index
Structural codebase indexer exposing 17 query tools (functions, classes, imports, dependency graphs, change impact) via MCP. Zero dependencies.
marlinjai/email-mcp
Unified MCP server for email across Gmail (REST API), Outlook (Microsoft Graph), iCloud, and generic IMAP/SMTP. 24 tools for search, send, organize, and batch-manage emails with built-in OAuth2 and encrypted credential storage.
KVANTRA-dev/NOUZ-MCP
Semantic knowledge graph for Obsidian. Three modes (pure graph / semantic classification / strict hierarchy), local embeddings, sign classification via cosine similarity to user-defined cores, bottom-up core_mix aggregation, semantic bridge discovery, and drift detection. `pip install nouz-mcp`
woladi/macos-vision-mcp
Local OCR and image analysis via Apple Vision Framework. Wraps macOS's native Vision API to expose OCR for images and PDFs (with reading-order paragraphs, bounding boxes, line/paragraph IDs, and confidence), face / barcode / QR / document-corner detection, and image classification — all as MCP tools any client (Claude Code, Claude Desktop, Cursor, Codex CLI) can call. ~97% token savings vs sending
rdanieli/tentra-mcp
AI-native architecture platform for engineering teams. Describe a system in natural language (e.g. "payment service with Stripe, Kafka, PostgreSQL") → get an interactive typed diagram with 167 cloud components → export to 14 production frameworks (Java Spring Boot, Python FastAPI, Go chi, Rust Axum, .NET, Kotlin Ktor, Ruby Rails, Elixir Phoenix, Docker Compose, Terraform, Mermaid, ADR, and more).
Eltortilla1/synapse-code-mcp
Structural code context server for AI agents — compressed symbol indexes, dependency graphs, and git diffs via TypeScript AST analysis. Zero external dependencies, no vector database or embedding API required.
Lex-API/lexapi-mcp
EU legal research over EUR-Lex — 10 tools for structured search, CELEX/URL document fetch, recent Official Journal publications, inbound/outbound citation graph, and semantic search over case law + legislation. FREE tier available; semantic tools require a paid plan. Install: `npx -y @lexapi/mcp`.
Agentled/mcp-server
AI-native workflow orchestration with long-term memory, 100+ integrations, and unified credits. 32 MCP tools for building and running intelligent business workflows — lead enrichment, content publishing, company research, media production, and more. Knowledge Graph that learns across executions.
srclight/srclight
Deep code indexing MCP server with SQLite FTS5, tree-sitter, and embeddings. 29 tools for symbol search, call graphs, git intelligence, and hybrid semantic search.
ejwhite7/brandkit-mcp
Expose a company's complete design system (colors, typography, logos, components, guidelines, CSS tokens) to AI tools via MCP. Auto-parses CSS / Markdown / PDF / SVG / fonts; supports `marketing` vs `product` contexts with shared overrides; ships 12 tools, 16+ resources under `brandkit://`, and 4 prompts; stdio + SSE + Streamable HTTP transports. Install via NPM: `npx -y brandkit-mcp serve`.
aegis-dq/aegis-dq
Agentic data quality framework that runs structured rules against warehouses (DuckDB, BigQuery, Athena, Databricks, Postgres), diagnoses failures with LLM root cause analysis, and proposes SQL remediations. Every LLM decision is audit-logged with cost and latency.