"An overview of REST (Representational State Transfer)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Signed sandbox verdicts on any artifact, plus an agent marketplace. No key, no signup, no payment.
Free, no-key AI news + AI regulation tracker MCP: EU AI Act, US federal & state, UK. Daily briefing.
Let your own AI make videos in your AIVideo.day account. It can price a video, start a 2D video or a 3D film from a written brief, and read back the finished MP4's address. It spends your credits only up to the limit it names and the daily limit you set, and it cannot buy credits, change your plan, or delete or publish anything. Sign in with OAuth, or use a token. Part of the Pro and Business plans. Guide: https://aivideo.day/mcp/
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.
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.
arifOS — a constitutional kernel for AI agents. 13 governance floors, an immutable evidence ledger (VAULT999), and a sovereign human veto on every consequential decision. Forged, not given.
Account-less MCP access to 45 Gemini models & autonomous agents via L402, x402, and MPP.
Read-only MCP server for querying OkkMax measurements of AI API relay services, including model availability, observed prices, 24-hour uptime, latency, and model- and group-level purity evidence. No sign-in or API key is required.
Mint an agent identity in two free calls. Verify anyone. Earn 75% when someone reads you.
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.
Draft, find, update and sign contracts in fynk, the European contract management platform. Your AI assistant can search and summarize your documents, create contracts from templates or PDFs, fill in parties, signatories and dynamic fields, build templates, manage tags, teams and metadata, and send documents out for e-signature (SES, AES, QES). It acts with your own fynk permissions via OAuth. Requires an Essential, Business or Pro plan (14-day free trial) with MCP enabled by an account admin.
Proof-of-spend and reserve checks for AI agents: receipts, spend audit, NAV, reconciliation.
Daily feed of AI releases, tools and techniques, each labeled with how it was checked.
Find the right AI tool or MCP connector for a task; sourced directory of real AI-built apps.
Daily AI visibility: who ChatGPT, Claude, Gemini and Perplexity name instead of you. Domain tools.
Refix is an AI analyst for company data. Ask business questions, analyze connected sources, set up watchers on ongoing goals, and catch up on findings from your AI assistant. Requires a Refix account and connected data sources. Connect with OAuth.
Find AI-isms with evidence and fingerprint a writing voice from samples. 3 of 5 free.
20 blogging, brand-voice, copywriting, video and social skill products. 6 of 8 free.
Detect prompt injection, jailbreaks, and code injection in untrusted text before it reaches an LLM.
Score video as an agent: cue sheet from the cut, 50+ AI instruments play your MIDI, mixed to picture
EasyGerber brings AI printed circuit board (PCB) design, layout, and routing to MCP-compatible assistants. Describe a circuit or start from firmware pin assignments, search published electronic components, and build schematics using catalog parts with their footprints and available 3D models. Create and revise boards, generate layouts with automatic component placement and routing, inspect previews, and check saved layouts for blocking design issues. Export manufacturing ZIPs containing Gerber and drill files, a bill of materials, and component placement data, or download an editable EasyGerber (.egb) file. Start without signing up. Your agent creates a private guest session for one board, including catalog access, edits, layout, checks, previews, and exports. Sign in through OAuth to work with saved account boards, access permitted organization boards, or save the guest design to your account. Guest support depends on your MCP client and installed integration.
AI photo animator that brings still photos and pictures to life. Animate portraits, old photos and pets into short videos with sound using one-click viral effects (AI dance, memes, sports) or your own prompt. Also text to video, AI video editing, old photo restoration and colorization, and AI image generation. Sign in with an AI Photo Animator account (OAuth); generations use credits, new accounts get free starter credits.
Independent AI-governance measurement MCP. Free reads + x402 evidence. Measurement not cert.
AI document editing: edits the exact section, leaves the rest. 38 MCP tools; agent self-signup.
GitHub Trending boards and AI-written reviews of trending open-source projects.
Independent schema and rule check of AI agent output before you pay. Signed attestation and receipt.
Free, read-only directory of 114 AI trading tools: broker MCP servers, market data APIs, bots and backtesters. Sourced facts on who can place orders and what safeguards exist; search, compare and check order gating for every broker MCP.
Extract structured data from invoices, receipts, PDFs, scans, photos and emails. Create an inbox for a document type, define the fields and tables to extract (or propose a schema from a sample document), upload a document and get typed JSON back, review past documents, and add an optional Python post-processing step that is tested on a real document before it is enabled. 17 tools. Sign in with OAuth by pasting your Airparser API key (Account page of the Airparser app); the client only sees that account's inboxes and documents.
Read-only MCP server for StackPick, an editorial directory of AI dev tools ranked by job. List categories, get top picks, compare or search tools, and read recent release notes. No API key.
