"US Government Open Data API Aggregator (FEC, SEC, Congress, Lobbying, USAspending)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Trust checks for AI agents before they pay or connect. Check any x402 endpoint or MCP server: live status, real price and payTo versus the catalogue listing, OFAC and stablecoin-freeze screening, open Trust Score. A preflight decides allow / hold / block right before an x402 or MPP payment is signed. Results are signed and logged in a public transparency log. Also: agent passports, two-sided receipts, purchase reports verified on chain, signed skill releases. Free tier, no sign-up.
Creative performance, tag-level insights, attribution data, and competitor ad analysis from Segwise. Connect with your Segwise account using OAuth.
Read-only discovery for 440 Malaysian public datasets with freshness, licence, and provenance.
Manufacturing cost of CNC and sheet-metal parts from STEP or DXF: process plan, times, 10 lot sizes.
ASN.1 tools. Validate, compile ASN.1 schema, encode and decode ASN.1 data.
Arsen is a human risk management platform that enables security teams to assess employee exposure through advanced phishing, voice phishing, and deepfake simulations, and strengthen their resilience with adaptive cybersecurity awareness training. Arsen MCP connects your Arsen platform to your preferred AI assistant, including Claude, ChatGPT, and any MCP-compatible assistant. With Arsen MCP, you can: 1. Build and launch campaigns. Let your AI assistant prepare phishing simulation campaigns and cybersecurity awareness programs, then launch them with your approval. 2. Get actionable insights from your data. Ask questions in plain language and get answers based on your organization's actual data, including campaign results, click, compromise and reporting rates, phishing score trends, coverage, and teams that need attention. 3. Manage multiple client organizations. Give MSSPs the ability to query and work across every client organization they manage, from a single AI assistant. Secure by design. Users authenticate with their Arsen account (SSO and MFA supported), and every request is governed by their existing Arsen permissions.
Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.
Give your AI assistant its own private email. Create mailboxes in seconds, send and schedule messages, and let the agent wait for incoming emails to pick up verification codes and confirmation links — without exposing your personal address. Works with Claude, ChatGPT, Cursor and VS Code: just sign in with your GhosterMail account. Requires GhosterMail Full Access.
Free Star Wars MCP server (SWAPI): people, films, planets, species, starships, vehicles. No API key.
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
Fact-check LLM outputs with cited sources. API key: aihcc.cloud/keys.
Form backend for static sites: create a form and get its HTML snippet, send submissions to email, Discord, Slack or a webhook, then read, moderate and clean up spam. Sign in with OAuth, no API key. MCP works on every plan, including Free.
Read-only UteamUP CMMS connector for finding assets and work orders and viewing asset details through five tools. Sign in with OAuth; access follows your company permissions.
Visual builder for React Native and Expo apps. Read and update project design tokens.
Institutional-grade market data MCP server providing consolidated global equities, ETFs, FX, and crypto quotes, valuation multiples, technical indicators (RSI14, MACD, SMA, ATR14), earnings surprise context, and options implied volatility screening.
Products, carts, reorders, quotes, property and vehicle visits from Brazilian stores for AI agents.
Manage your D&D campaigns through your preferred AI agent.
Read-only Google Ads, GA4 and Search Console data for Claude, with no Google Cloud setup.
Web search API and MCP server for developers building AI agents.
Queries IOCs, vulnerabilities, threat actors and malware correlated from thousands of sources, retaining source-attributed evidence. Collection spans feeds, reports and advisories, social and dark-web monitoring, and Mallory's own sandboxing and internet scanning; a free community tier is available with an account and API key.
Schedule and publish posts to Instagram, TikTok, X, LinkedIn, YouTube, Pinterest, Facebook & more.
WhatsApp for AI agents — your own number or the official Cloud API: messages, media, templates.
PDFs from HTML, Markdown, web pages and Office files; merge PDFs, screenshots. Sign in or API key.
Homesage.ai MCP gives AI assistants real estate data on 160M+ US properties, with 30+ tools for property search, estimated values, estimated renovation costs, and Seller Motivation Scores.
Crypto perp funding, spreads and listings, plus your own Arbitron cards, trades, PnL and docs.
Manage social media with AI using RepeatPost MCP. Create and schedule posts, generate captions, manage drafts, publish content, create branded graphics, and organize media across connected social channels. Built for creators, marketers, agencies, and businesses, using AI assistants to automate social media workflows.
Deploy durable AI agents with Omnara, an open-source managed-agent platform.
Google SERP, keyword volume, tech stack, rank tracking, backlinks, site audits. Pay per use.
Pay-per-call MCP tools for agents: 20 free calls a day, then pay per call with x402 (USDC on Base mainnet) or a prepaid spend key. 30 tools — text/data utilities, x402/EVM-native tools (decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 hashing, ABI encode/decode, Merkle-proof verify, keccak256, EIP-55 address checks) and independent providers' tools priced from $0.001. Signed delivery receipts. No sign-up.
Paste-your-data analytics: CSV profiling, A/B tests, correlation, growth. 4 of 7 free.
