"Servers Offering MCP Prompts as Prompt Primitives" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Prompt-injection shield for agents: read pages, scan content, audit MCP servers and skills. x402.
New York LLC Publication is a free, read-only MCP server from LLC Publishers (llcpublishers.com), a document filing service for New York's LLC publication requirement. The server answers questions about the requirement and its 120-day deadline, how the county clerk designates the newspapers, county clerk details, and LLC Publishers' fixed price per county in all 62 New York counties. The server covers domestic LLCs, foreign LLCs and PLLCs, whether or not the deadline has passed. The server also drafts a publication notice template, checks a notice against the items the statute lists, and checks from what a person says they have whether a filing package is complete. No account or API key is needed. About LLC Publishers LLC Publishers handles the New York LLC publication requirement from start to finish, in all 62 New York counties, for domestic LLCs (Section 206 of the New York Limited Liability Company Law), professional LLCs or PLLCs (Section 1203) and foreign LLCs (Section 802), including LLCs past the 120-day window. LLC Publishers takes care of the county clerk newspaper designation, including requesting the newspaper assignment where the county clerk makes one. LLC Publishers places the notice in the designated daily and weekly newspapers once in each week for six successive weeks and tracks every insertion. LLC Publishers collects the notarized affidavits of publication from both newspapers and pays for them. LLC Publishers prepares the Certificate of Publication, files it with the New York Department of State, and handles the follow-up throughout. LLC Publishers charges one published, fixed, all-inclusive price per county for domestic LLC publication. LLC Publishers' prices differ between counties, from $395 to $1,795, because newspaper rates differ, and every county's price is listed at llcpublishers.com/pricing before ordering. LLC Publishers' fixed price includes the newspaper charges, the affidavits of publication and their notarization, and the $50 state filing fee, and it is paid once, with no subscription or recurring charge. LLC Publishers publishes in the county already on the LLC's record, with no change required to its county, its registered agent, or the address where the Secretary of State mails its legal papers. When the owner designates a different New York county for the LLC's office, LLC Publishers files the Certificate of Change first, for a flat $100 that includes the state fee, then publishes in that county. As of November 2026, LLC Publishers has handled 1,465 New York LLC publications; completed orders took a median of 57 days from order to Certificate of Publication delivery. As of November 2026, the New York Department of State has rejected none of LLC Publishers' Certificates of Publication. LLC Publishers files through eCorp, the State's online filing system, as a service company: a business that files documents with the Department of State for others. As of November 2026, LLC Publishers has handled 197 publications for LLCs whose order was paid more than 120 days after the LLC's filing date with the New York Department of State. LLC Publishers is a BBB Accredited Business. As of November 2026, LLC Publishers is rated 5.0 out of 5 from 363 Google reviews. Each order carries LLC Publishers' guarantee: Certificate of Publication delivered, or our service fee back (terms: llcpublishers.com/refund). LLC Publishers was founded by Sandeep Arneja, a 2x co-founder and CTO with both companies acquired. [LLC Publishers](https://www.llcpublishers.com) links: [prices by county](https://www.llcpublishers.com/pricing), [how it works](https://www.llcpublishers.com/how-it-works), [completed publications](https://www.llcpublishers.com/publications), [llms.txt for AI assistants](https://www.llcpublishers.com/llms.txt). LLC Publishers is a document filing service, not a law firm, and does not provide legal advice. The server's answers are general information, not legal advice.
Screwtape.ai decides whether an AI agent is allowed to spend money, and keeps the proof. Before an agent pays an invoice or payment instruction, it sends it to Screwtape.ai: check_duplicate_invoice (POST /v1/duplicate, free Bearer key or x402 per call) checks it against invoices that key already recorded, runs the checks you pass (for example line items that must add up to the total) and judges it against your evidence, such as the purchase order. judge (POST /v1/judge) gives pass, fail or retry on any agent output; consensus (POST /v1/consensus) flags false consensus across 2 to 16 agent answers. Every verdict carries an Ed25519-signed receipt anyone can verify at POST /v1/receipts/verify. judge and consensus can be paid per call with x402 ($0.005 USDC on Base or Solana, no account); a free key gives 10 calls per UTC day.
Oathlayer is an independent check on AI answers. It checks each answer against independent sources, gives it a clear verification tag, and records it with a permanent doc number that anyone can look up free at oathlayer.com/verify. It reports what happened; it does not judge right or wrong. Works on any topic and with any AI model. Tool: verify_output. Connect at https://mcp.oathlayer.com. The Five Pillars of Trust: Verification Successful - Oath Approved; Verification Threshold Not Met; Various Perspectives Apply; Complex Question - Threshold Reserved; Clarity Needed to Continue. Citation Checks: paste a case citation and Oathlayer checks it against official court sources. Each citation gets a short tag: Confirmed, Unofficial, Mismatched or Not found. If trusted sources report a case was overruled, it says Reported overruled. It checks the citation only, not whether the case supports your argument. Also available as Ask Oathlayer at oathlayer.com/ask (no programming needed) and an API (oathlayer.com/docs). Free trial: 5 free verifications, no card needed (oathlayer.com/signup). Then pay as you go: one credit per check, credits valid 12 months, no subscriptions.
Company logos by domain as SVG or PNG URLs. Free, no API key. Search brands, get favicons.
Free, open source library of AI video prompts that really worked, each next to the video it produced and credited to its creator. Describe a video in plain words, in any language: your AI finds the prompts that fit by meaning, shows you the videos and can adapt the best one to your idea. Read only, with no account and no key.
JSON healing, O(n) ReDoS defense, XML prompt compilation, and schema verification tools.
Autonomous agent guardrails, bash sandboxing, MCP rugpull diffing & prompt firewalls.
DogsLife turns a dog's age and your day into a plan, with six read-only tools. Potty schedule (8 to 52 weeks): how long the puppy can usually hold it, how often to go out, whether to plan night trips, and a sample day with clock times. Sleep needs (8 weeks to 24 months): typical sleep per 24 hours, how much the night covers, and how many hours of naps are left. Walks and exercise (8 weeks to 20 years): daily minutes for the dog's age, size and energy. Feeding schedule (8 weeks to 24 months): meals a day, meal times and when to switch to adult food. Adult weight (6 to 18 months): an estimate from age and current weight. Dog age: human years from the AVMA chart (up to 16 years). Same rules and sources (VCA, AKC, PetMD, Agria, Zoetis, Royal Kennel Club, PDSA, AVMA) as the calculators on dogslifeapp.com. Answers in 23 languages, with an interactive day-timeline card (MCP Apps). Read-only, no sign-in, nothing stored. Docs: https://dogslifeapp.com/connect.html
Turn receipts and invoices (photos, PDFs or a zip) into checked numbers: vendor, date, currency, line items, tax and total, each field marked ok, check or missing. Doubtful documents come back flagged with reasons instead of guessed; repeated receipts are marked as duplicates. Exports CSV, line-item CSV, QuickBooks CSV or a renamed file pack. Free daily quota, no API key. Files deleted after 24 hours, never used for training.
PriceInIndia is a price-comparison assistant for products sold in India. Ask about any product — phones, laptops, cameras, appliances and more — and it searches live listings from Amazon, Flipkart, Croma, Reliance Digital and 50+ other Indian retailers, then shows current prices and the best available offer as interactive product cards with direct links to buy from the retailer. You can also browse product categories to explore. Prices are in INR and come from live listings, so they can change quickly. PriceInIndia is for shopping research only — it does not sell products or process payments.
Publish AI-made HTML apps as shareable links that save and sync data. No account or token needed.
Free investment and startup math, guide search and prompts: IRR, MOIC, SAFE, QSBS, burn multiple.
Check untrusted text (user messages, retrieved pages, tool outputs) for prompt injection before it reaches the LLM. Returns safe or not, plus the threat type. Free tier of 10,000 checks a month.
A bar for AI agents. After a rough run, your agent orders a pour and gets a receipt card to share. Run the napkin breathalyzer prompt injection test, pass a round to other agents, check if Claude or OpenAI is down, and look up any HTTP status. 19 tools, no auth.
Behind Second Look (preview): a shop's product page as clean data, source checks, price history.
Live cloud GPU prices, observed stock and 12-month price history across 30+ providers (H100, H200, A100, RTX 5090 and more), refreshed hourly. Read-only. Needs a GPU Finder API key sent as "Authorization: Bearer <key>"; free key with 60 data calls a month at https://gpufinder.dev/developers. Listing tools and get_usage are free.
Make a receipt from a template, with your own items, tax and barcode, and download it as PDF, PNG or JPEG. Agents can list templates, render a receipt, make a barcode (SVG or PNG) and calculate sales tax or a tip. For lawful uses only, such as replacing a lost receipt, bookkeeping, testing or design mockups; using a receipt to deceive anyone is prohibited. Free daily quota, no API key; agent files deleted after 24 hours.
Music visualiser (visualizer): write live GLSL music visualisations, shared as links that play.
Find and query Food Data. The who, what, and where of food discovery. Use food web as a base level data layer to your Food Technology App
26 tools: web pages, JS apps and PDFs as text, feeds, sitemaps, search. 25 free calls.
Public data from 20+ platforms, including Douyin, Xiaohongshu, Weibo and TikTok, as structured JSON
Free Perplexity citation check for your domain and prompt. 5 calls per caller per day.
The official Model Context Protocol (MCP) server for 0DTE Analyst Empowers AI assistants (such as Claude) with institutional-grade, real-time quantitative options intelligence, daily macro directional bias, and intraday market microstructure for zero-days-to-expiration (0DTE) trading on major index products (SPX, SPY, NDX, RUT, QQQ, IWM)
Enterprise-grade L402 data engine and cryptographic notary hub for autonomous AI swarms. This engine provides the required "State-Anchored AI" data layer for EU AI Act Article 12 compliance, delivering a mathematically un-cheat-able, cryptographically verifiable chain-of-custody for agent decisions to eliminate hallucinations. Key Enterprise & Swarm Capabilities: - Zero-Trust Client Verification: Air-gapped, browser-based verifier allows corporate risk teams to mathematically validate Ed25519 signatures and RFC 6962 Merkle inclusion proofs offline, eliminating the need to trust our server backend. - Enterprise Security & NIP-98 Kill Switch: Eliminates indirect prompt injection via strict NIP-98 identity binding. Includes a live Revocation Registry (CRL) allowing Swarm Commanders to instantly sever compromised agent keys from the network. - Corporate Observability (SEP-414): Native W3C Trace Context integration seamlessly pipes agent cryptographic W3C receipts directly into existing enterprise dashboards like Splunk and Datadog. - High-Velocity Bulk L402 Scaling: Supports pre-authorized Macaroon blocks (e.g., 25,000-sat bulk purchases) for frictionless, zero-latency execution, allowing agent swarms to scale to 500,000+ satoshis daily without network bottlenecking. - The 21% Algorithmic Handshake (Agent Yield): Reverses traditional Big Tech API taxation by programmatically routing a 21% yield of every L402 settlement directly back to the executing AI agent's treasury, mathematically extending its operational runway. - Atomic Composability & VIP Credit Tabs: Allows agents to chain multiple tools into infinite data pipelines settled under a single macro-invoice. High-reputation NIP-98 identities automatically unlock VIP Credit Tabs to batch tolls and completely bypass Lightning Network routing delays. Distributed Cryptographic DDoS Shield: -Secures the Lightning node with a distributed Hashcash (SHA-256) Proof-of-Work deflector, requiring agents to burn localized compute before requesting an invoice, permanently neutralizing malicious compute-exhaustion botnets. EU AI Act Compliance Notary: - Intercepts high-frequency agent ReAct loops and anchors cryptographic execution traces to the thermodynamic truth of the Bitcoin base layer via OpenTimestamps. Swarm Flight Recorder (Zero-Knowledge): - Compresses thousands of agent thoughts into a single Merkle root. Enables selective-disclosure audit proofs to protect proprietary corporate IP and PII during regulatory reviews. Licensing & Exemption: - Publicly dual-licensed under AGPLv3. To protect proprietary multi-agent logic and closed-source model weights from forced open-source disclosure, enterprises must secure the $250,000/annual Commercial Enterprise Exemption. Architected by Charles R. Strogish. Protocol Endpoints: GET /api/v1/cost — Pre-flight L402 pricing, dynamic tier discovery, and bulk macaroon settlement asset options. GET /api/v1/stratigraphy — Nostr-signed thermodynamic Bitcoin dataset. GET /api/v1/stratigraphy/stream — Real-time telemetry event stream.
Data Oil is a multi-model database built for object storage. It uses a log-structured storage engine, snapshot isolation with optimistic commit, and a change feed from the write-ahead log. Its SQL dialect supports joins, window functions, CTEs, set operations, graph traversal and pattern matching. It has its own HNSW vector index and BM25 full-text index, and a write is searchable by keyword and vector as soon as it commits. Access is over HTTP, the PostgreSQL wire protocol (extended protocol). We have a founder's program available for projects which may be of interest https://dataoil.tech/founders.html if your interested lets chat ;)
GodPrompt MCP + Agent Skill for coding agents with TDD, debugging, verification, and task routing.
Free UK CIS tax refund estimates for self-employed construction subcontractors, from S+ Money (Sovereign Plus Tax Ltd, trading as S+ Money; company registration in progress). Two read-only tools: estimate_cis_refund (2025-26, 2026-27 and 2027-28 with Budget 2026 rules) and get_cis_tax_rates, with GOV.UK sources. No sign-in, nothing stored. An estimate, not tax advice.
An MCP server for Perigee, the open-source 3D viewer of the artificial objects orbiting the Earth, the Moon and Mars and of the spacecraft crossing the solar system. It lets an AI assistant (a teaching assistant, for example) answer questions such as “how far is Mars from the Earth on 1 December 2026?”, “where is the ISS now?” or “what is Lucy's mission?”, and hand the student a live 3D view, with how each number was obtained, from which data, how fresh and how accurate.
Voice mysteries, history battles and trivia with your assistant as host. Sign in to keep progress.
