Search: deterministic
Search MCP servers and agent skills by name, description, category or topic — 66 results.
sipyourdrink-ltd/bernstein
Deterministic multi-agent orchestrator for 37 CLI coding agents (Claude Code, Codex, Cursor, Aider, Gemini CLI, GitHub Copilot CLI, OpenHands, OpenCode, Goose, Qwen, Ollama, and more). MCP server mode (stdio + HTTP/SSE) exposes the orchestrator to any MCP client. Git worktree isolation per agent, HMAC-chained audit trail, cost-aware model routing via contextual bandit. Apache 2.0.
flytohub/flyto-core
Deterministic execution engine for AI agents with 412 modules across 78 categories (browser, file, Docker, data, crypto, scheduling). Features execution trace, evidence snapshots, replay from any step, and supports both STDIO and Streamable HTTP transport.
getmockd/mockd
Multi-protocol API mock server with 18 MCP tools. Mock HTTP, GraphQL, gRPC, WebSocket, MQTT, SSE, and SOAP APIs with chaos engineering, stateful CRUD, 8 import formats (OpenAPI, Postman, HAR, WireMock, cURL, Mockoon, WSDL), and deterministic seeded responses.
aidc2026ai-melon/aidc-ai-mcp
Deterministic AI data-center design engine exposed as MCP tools (design, validate, layout): rack count, design PUE, total MVA, liquid/air cooling split, CDU planning, cost & timeline. NVIDIA Rubin-era, 22.9 kV intake, Korea. Remote Streamable HTTP at https://aidc-ai.io/api/mcp; no key for the anonymous tier.
markmhendrickson/neotoma
Deterministic state layer for AI agents. Stores versioned entities (contacts, tasks, transactions, decisions) with immutable observations, full provenance, and schema-first extraction. Local-first SQLite, cross-client memory across Claude, Cursor, ChatGPT, and OpenClaw. [Website](https://neotoma.io)
raccioly/docguard
Deterministic documentation-drift detection for AI agents. Validates a project's canonical docs against its actual code — no LLM guessing; every finding has a stable code and a suggested fix. Five read-only tools over stdio: guard, score, explain, verify-claims, diagnose. `npx -y docguard-cli mcp`
openfate-ai/bazi-mcp
Deterministic Bazi / Four Pillars MCP server with True Solar Time, lunar/solar conversion, Da Yun luck cycles, branch interactions, reverse Bazi lookup, and OpenFate calculation metadata. Install: `npx -y @openfate/bazi-mcp`.
TyKolt/kremis
Deterministic knowledge graph MCP server. Single binary, zero LLM/embedding calls in the bridge, BLAKE3 state hashing, canonical KREX export for byte-identical audit. Local-first via redb (ACID). **Alpha**.
LeonTing1010/tap
MCP server that compiles AI browser automation into deterministic `.tap.json` plans (25-op closed union, zero runtime LLM), runs on your logged-in Chrome, and detects drift via semantic fingerprint diff when sites change. 65+ open community taps on 40+ sites.
Wynelson94/longhand
Persistent local memory for Claude Code. Indexes every session JSONL verbatim into SQLite + ChromaDB for semantic recall (~126ms) across your entire history. Never summarizes, zero API calls, 17 MCP tools including fuzzy `recall`, deterministic `replay_file`, and git-aware `recall_project_status`. Published on PyPI as `longhand` and registered in the MCP Registry.
richer-richard/cochlea
Render, analyze, and verify audio (WAV or FLAC) through a fully offline, deterministic engine. Compose scores as data, render byte-identical PCM, pull loudness, pitch, tempo, key, and structure reports, generate spectrograms, and diff two renders against each other. No ffmpeg, no audio device, just numbers an agent can actually reason about. `cargo install cochlea-mcp`
AIOProductOS/studio-mcp
Turns your AI host into a product videographer: scripted screen recordings of your own web app with a visible gliding cursor, camera zooms, highlight callouts, captions, and designed scene transitions, plus marketing-grade screenshots; deterministic dark-frame cleanup and MP4/GIF export. Free and fully local. `npx -y @aioproductoscom/mcp-studio`
QuantOracledev/quantoracle
63 deterministic quant finance tools for AI agents — options pricing, risk metrics, portfolio optimization, Monte Carlo, technical indicators, crypto/DeFi, and FX/macro. 1,000 free calls/day, no API key.
Rul1an/assay
Policy-as-code gate for MCP. A fail-closed proxy that denies risky tool calls before they run, produces offline-verifiable evidence bundles of what executed, and enforces IPv4/TCP egress in-kernel via eBPF/LSM and Landlock on Linux. Deterministic and offline-first.
WCAG-Compliance/wcagc-mcp
Deterministic axe-core accessibility scanning (WCAG 2.1 AA, EN 301 549, PDF/UA) through a [wcagc](https://wcagc.com) account: scan any public URL or PDF, crawl a whole registered site, replay saved multi-step journeys, and read violation trends. Returns structured findings — rule, severity counts and the success criteria involved — so the assistant reasons over real results rather than guessing fr
cleanor-app/cleanor-mcp
Zero-auth hosted server with 22 read-only tools: optimize/convert images (WebP/AVIF/JPEG), paste-ready SVG QR codes, cited [Cleanor Labs](https://cleanor.app) data on device storage capacity and next-gen image-format savings (AVIF/WebP/JPEG XL vs JPEG, HEIC conversion tax), plus 18 deterministic dev utilities LLMs get wrong (hash, HMAC, UUID, base64, JWT decode, JSON, regex, cron, unit & base conv
AkashGoenka/coldstart
Codebase memory for coding agents, with no embeddings and no API key. A deterministic AST index answers "which files are relevant to this task?" in milliseconds, and agents write durable notes about the repo that are content-hash checked — a note flags itself stale the moment the code it describes changes. Notes are markdown inside the repo, so they commit and review alongside your code. `npm i -g
vassiliylakhonin/agenda-intelligence-md
Auditable strategic-risk memos for AI agents — sanctions, regulatory, geopolitics, trade. Geography-routed regional specialists (Central Asia/Caspian, Gulf/Middle East), per-claim evidence discipline, schema-validated output, machine-verified audit. No live data retrieval. PyPI: `agenda-intelligence-md`.
pineforge-4pass/pineforge-codegen-mcp
Backtest PineScript v6 strategies locally: transpiles Pine→C++ and runs on the deterministic, TradingView-validated PineForge engine (245/246 strict parity, no API key).
mi60dev/visionaire-engine
Design-debugging context for AI agents from a real Chrome: which CSS rule WINS with file:line, blast radius (how many other elements that rule styles) + a scoped-fix selector, WordPress/Elementor origin attribution, interaction timelines, live CSS fix trials, and pixel/alignment/WCAG-contrast audits. No AI inside — deterministic CDP.
srbsa/diffgate
Deterministic guardrail for AI-written diffs, runnable from inside the coding agent's own loop over MCP. Zero-LLM-token, AST-precise rules (SQLi, SSRF, XXE, permissive CORS, prototype pollution, hardcoded secrets) across 8 languages, plus structural checks for reinvented helpers and over-abstraction — findings scoped to only the changed lines, same input always gives the same output, no false-bloc
behrensd/mcp-firewall
Deterministic security proxy (iptables for MCP) that intercepts tool calls, enforces YAML policies, scans for secret leakage, and logs everything. No AI, no cloud.
BluesPrince/thiri-mcp
Deterministic music-theory server: chord & Roman-numeral analysis, voicing, and reharmonization — computed, not hallucinated. Hosted at mcp.thiri.ai, no third-party account required. `npx @bluesprincemedia/thiri-mcp`
gvasile29/qai-consultant
Keyless local MCP server bringing ISTQB / OWASP / IEEE / ISO / EU AI Act QA standards into your AI client: standards-grounded retrieval, deterministic QA effort estimation, and automated QA document quality review (0-100 rubric) plus JUnit/CSV test-results flakiness analysis. `uvx qai-consultant-mcp`
Chimera-Protocol/csl-core
Deterministic AI safety policy engine with Z3 formal verification. Write, verify, and enforce machine-verifiable constraints for AI agents via MCP.
jigyasudham/veto
A council of 49 specialist agents + 93 tools for every major AI CLI (Claude Code, Codex, Gemini, Cursor, Windsurf). Deterministic agents that optionally upgrade to LLM, a self-learning router, cross-CLI memory, and guards for dependency hallucinations and decision drift. No API keys; zero extra cost on subscriptions.
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.
chaoz23/srdcheck
Deterministic D&D 5e (SRD 5.2.1) rules verdicts for agents: cited legality checks for whole turns, legal-action enumeration, advantage math, and hash-stamped game-state lineage. Refuses what the rules don't decide (exit 2), quotes the rule text on every verdict, zero dependencies.
calllint/calllint
Pre-flight security linter for MCP servers, agent tools, and skills. Scans a config *before* it runs — offline, deterministic, evidence-backed — and returns SAFE / REVIEW / BLOCK / UNKNOWN verdicts without executing the server it judges. CLI (`npx calllint scan`), MCP server (`npx calllint-mcp`), SARIF + CI gate. UNKNOWN is never SAFE.
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.
madhan-g-p/DevDocs-MCP
DevDocs-MCP is a MCP server that provides version-pinned, deterministic documentation sourced from [DevDocs.io](https://devdocs.io) in offline mode
temporal-cortex/mcp
AI-native calendar middleware for scheduling, availability, and conflict-free booking across Google Calendar, Outlook, and CalDAV. 15 tools across 5 layers: temporal context, calendar operations, multi-calendar availability, open scheduling, and Two-Phase Commit booking. Deterministic datetime resolution and RRULE expansion powered by Truth Engine.
echology-io/decompose
Decompose text into classified semantic units with authority, risk, attention scores, and entity extraction. No LLM. Deterministic. Works as MCP server or CLI.
kimwwk/repocrunch
MCP server that gives AI agents structured, ground-truth GitHub repository intelligence. Analyze tech stack, dependencies, architecture, health metrics, and security indicators with deterministic JSON output.
machinegrade/validate
Deterministic validation of AI-generated artifacts before acting on them: JSON Schema conformance, OpenAPI response conformance, SQL syntax per dialect. Typed verdicts with per-error fix hints. Hosted free tier with remote MCP endpoint; MIT, self-hostable.
seldonframe/reelier
Record an agent's tool-call workflow once, replay it deterministically at 0 tokens, and diff runs to catch drift — CI + snapshot tests for MCP tool-call workflows. `npx -y reelier serve`
laszlopere/mcp-gnu-units
Unit conversion and dimensional analysis backed by the bundled GNU units database (3000+ units, compound expressions, reduction to SI base units). Offline and deterministic. `uvx mcp-gnu-units`.
disin7c9/asset-management
Read-only, offline analysis of your own stock/ETF transaction log — drawdown-first risk with bootstrap confidence intervals and walk-forward verdicts, computed by a validated deterministic core and served to the model as read-only tools it reports rather than recomputes; publishes a `portfolio://guarantees` trust manifest.
JayOfemi/shikamaru
Deterministic day-count and accrued-interest engine. Six ISDA/ICMA conventions, proven exact against QuantLib over 3,600 date pairs. Stops the AI guessing your interest math.
keel-trade/keel-trade
Build, backtest, and automate Hyperliquid trading strategies. Typed strategy composition, deterministic backtests on real Hyperliquid funding + price history, opt-in live execution with bit-for-bit backtest-to-live parity.
MARUCIE/authbox
Zero-knowledge password manager with MCP credential gateway. BIP-39 seed phrase recovery, deterministic passwords, policy-gated AI agent access (scope, rate limits, time windows, step-up approval), 70+ API key providers, and hash-chain audit trail. Go + Next.js + TypeScript.
gregario/astronomy-oracle
Accurate astronomical catalog data and observing session planner. 13,000+ deep-sky objects from OpenNGC with deterministic visibility, rise/transit/set, and alt/az calculations. `npx astronomy-oracle`
bobaba99/motionlint
Catch bad animations before they ship. 13 deterministic checks on the live page (duration, easing, stagger, exits, reduced-motion, touch-gated hover) with no API key or LLM, plus optional vision-LLM UX review across viewports. Install via NPM: `npx -y motionlint mcp`
HalidSaglam/saglitzdesign-mcp
Expert design & marketing knowledge for web / iOS / Android / macOS UI/UX: 83 sourced, prescriptive docs plus deterministic generators (design tokens, color systems, type scales, WCAG a11y) and a one-call `create_design_system`. Offline, no API key, reads only local files. Install via NPM: `npx -y saglitzdesign-mcp`.
uxloom-dev/uxloom
Agent-native UI/UX design validation: model user journeys as state machines and prove what AI-generated screens are missing (unreachable states, missing empty/loading/error states, WCAG contrast, touch targets, localization overflow) before code exists — then verify the code implements the contract. Deterministic CI gates (`uxloom check`, `uxloom audit`), one-command setup (`npx uxloom init`).
SEOSiri-Official/biorobotics
A stateless, deterministic Bio-Robotics Core Engine converting biological data (UniProt API) to Cartesian G-code coordinates using the Model Context Protocol. 🐍 🏠 🍎 🪟 🐧
MasterPlayspots/motionspec
Reduced-motion / WCAG 2.2.2+2.3.3 verification for web animation: agents author validated specs; a deterministic compiler emits reduced-motion-safe, on-budget CSS. Keyless hosted endpoint (motion_catalog, motion_validate).
ahmedak/defluff
Deterministic slop detector for AI-generated prose. Flags filler phrases and clichés with zero false positives by design (curated phrase list, not a model), returns exact spans plus a pinnable 0-1 score, and runs offline with no API key. CLI + CI exit code + MCP server for agents to self-check their own output before it lands in a PR or doc. `pip install defluff`