Model Context Protocol servers. The cost that matters is the tool schemas they put in context, not the size of the config file.
MCP server Claude CodeCodexCursor +2
Base bytecode capability observations, proxy resolution, gas, DEX, and transfer telemetry. Runs locally from the @m2msentinel/sdk npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server "mcp-server-mysql" as configured in Kurok1/mcp-server-mysql. Runs in Docker (ghcr.io/kurok1/mcp-server-mysql:2.0.0). Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Physical Layer Linter — validates RF and physics calculations against hard physical limits. Runs locally from the physbound Python package.
MCP server Claude CodeCodexCursor +2
MCP server for source-grounded web research: search, structured-data extraction, evidence verification, and browser automation. Runs locally from the footnote-mcp Python package.
Morous-Dev/engram-context-continuum
MCP server Claude CodeCodexCursor +2
Universal AI coding assistant memory — session handoff, SLM compression, and semantic retrieval. Runs locally from the @morous-dev/engram-cc npm package.
MCP server Claude CodeCodexCursor +2
30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry. Runs locally from the @mameta/japan-data-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Independent, reproducible benchmark harness for agent-memory backends (MemPalace, Mem0, Zep/Graphiti, OpenViking): runs LongMemEval, LoCoMo, contradiction-detection, and a dozen other evals against all four and publishes the raw logs, not vendor-curated numbers. Runs locally from the memtrust-cli Python package.
MCP server Claude CodeCodexCursor +2
Hosted no-auth MCP for exact-spec packaging search, live price, stock, cart handoff, and no-match. Remote server at mcp.packrift.com.
MCP server Claude CodeCodexCursor +2
Plain-English browser tests for AI agents: real Chrome, deterministic verdicts. Free, no API keys. Runs locally from the browserbash-cli npm package. Needs 1 environment variable to run.
TheAiSingularity/agentic-research-engine-oss
MCP server Claude CodeCodexCursor +2
The best $0 research agent that runs on a laptop — local-first, CoVe-verified, with CLI / TUI / Web GUI + MCP server + Claude plugin. Runs locally from the agentic-research-engine Python package. Needs 9 environment variables to run.
MCP server Claude CodeCodexCursor +2
AI agent security scanner — prompt injection detection, SQL injection, PII isolation, threat intel. Runs locally from the shrike-mcp npm package.
YonasValentin/mcp-memory-graph
MCP server Claude CodeCodexCursor +2
Local-first memory for Claude Code and any MCP client: hybrid search + knowledge graph, $0/token. Runs locally from the mcp-memory-graph npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Bulge-tier Excel financial model factory. Every cell live-formulated, every number traceable. MCP-native. Runs locally from the modelforge-finance Python package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server for interacting with Bazos.cz and Bazos.sk. Runs locally from the @andrijdavid/bazos-mcp npm package.
MCP server Claude CodeCodexCursor +2
Persistent memory layer for AI coding agents — your agent remembers what you taught it. Runs locally from the aide-memory npm package.
MCP server Claude CodeCodexCursor +2
MCP server "airlock" as configured in adamorad/airlock. Runs in Docker (ghcr.io/adamorad/airlock:2.0.0).
MCP server Claude CodeCodexCursor +2
MCP server for querying Sonatype Nexus Repository Manager. Runs locally from the nexus-mcp-server Python package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
Share ordinary text files between concurrent agents without silently overwriting edits. Runs locally from the slivingdoc npm package. Needs 5 environment variables to run.
MCP server Claude CodeCodexCursor +2
A Python package for building and optimizing cheminformatics workflows using Bayesian optimization and LLM agents. Runs locally from the cmxflow Python package.
MCP server Claude CodeCodexCursor +2
MCP server for Yandex Metrica API: list counters, goals and pull web-analytics statistics. Runs locally from the mcp-yandex-metrica npm package. Needs 7 environment variables to run.
MCP server Claude CodeCodexCursor +2
A local connector for searching Russian government procurement records on zakupki.gov.ru, the official website for public tenders. It covers procedures governed by Russia's 44-FZ and 223-FZ laws and 615-PP rules.
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
37 tools to read, create, merge, split, watermark, fill, redact & search PDFs. Local, no API key. Runs locally from the pdf-suite-mcp npm package.
MCP server Claude CodeCodexCursor +2
Secure MCP server for GitLab projects, merge requests, issues, and pipelines. Runs locally from the mcp-gitlab-crunchtools Python package.
MCP server Claude CodeCodexCursor +2
40+ Lightning-paid AI tools for agents: calls, SMS, fax, voice, translation. No signup, no keys. Runs locally from the sats4ai-mcp npm package.