MCP connectors for Claude

AI-powered diagrams, mind maps, flowcharts on a free unlimited collaborative whiteboard

CanYouGrab.it

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Confidence-scored domain availability checking for AI agents via CanYouGrab.it

Cap'n Proto segment count, body discarded

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Cap'n Proto segment count, body discarded

Scores US metros on corporate investment catalysts and repricing signals for real estate investors.

cap-shield

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Context selection and compression for AI agents — with the recall measured, not claimed.

• Measure Traffic: Measure how much of your own agent traffic could be saved. NO ACCOUNT OR KEY NEEDED — use this first. Returns byte savings over the wire and, if a query is given, token savings from s
• List Packages: List the available dictionaries with their MEASURED compression, including the ones that perform badly. Each entry says whether it works one message at a time or only batched, and how m
• Remember: Store a memory entry for later retrieval. REQUIRES A KEY. This does not call any language model — it stores text in an isolated per-tenant archive. Use assemble_context to get relevant entri

Deterministic company, entity and location lookups for agents - per call, x402 or API key.

capabilities-txt-registry

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Discover what websites across the agentic web can do — query the capabilities.txt registry.

capabilities

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vrsai provides deterministic, machine-native decision and validation capabilities for autonomous systems.

• Openapi Agent Readiness: Call before integrating an OpenAPI-described API with autonomous agents to determine whether the contract is machine-actionable. Deterministically analyzes a self-contained Op
• Sql Preflight: Call this immediately before an autonomous agent, coding assistant, or automated pipeline executes PostgreSQL write, DDL, or administrative SQL against a production-capable connection.
• Invoice Match: Call after invoice extraction and immediately before an accounts-payable or procurement agent approves a purchase-order-backed supplier invoice. Invoice Match performs deterministic thr

A live, curated feed of new AI agent capabilities across MCP, SDKs, models, and APIs.

Connect an AI assistant to a Capacities space (objects, daily notes, search).

capacitor-mcp

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Unofficial MCP server for the Capacitor documentation, plugin list and blog.

capital-equipment

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Search, book, and manage scientific research equipment across 500+ STEM core facilities.

Capital Markets Agents: MCP+A2A Canada

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KYP Agentic Trading with the Capital Markets Knowledge Graph — eleven markets, in-country.

Read-only public-company financials, KPIs, benchmarks, filings, and insider activity.

Navigate the U.S.

Capivara: Investigação Cadastral

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360º background dossier on a person (or company) from name + CPF: identity, contact, money-to-claim

Caplia

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MCP server for VC pitch-deck scoring, thesis-fit matching, and deal-flow management.

caplia

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MCP server for VC pitch-deck scoring, thesis-fit matching, and deal-flow management.

• Caplia Search: Search Caplia for companies in the caller's pipeline by name. Returns up to 25 matches with id, name, website, industry, and stage. Use this to find a company before fetching its full p
• Caplia List Companies: List companies in the caller's pipeline. Supports cursor pagination (`cursor` from the previous response's `next_cursor`) and filtering by `stage` or by named `view`. Use `limit
• Caplia Get Company: Fetch the full profile of one company by UUID: name, problem statement, industry, stage, website, founders, fundraising round, etc.

capmus-mcp

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Search listings, message posters, and create draft posts on Capmus, the university marketplace

capslane

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Retrieve existing or generated YouTube transcripts with timestamps through Capslane.

captapi

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Social media data: 85 tools across 11 platforms (YouTube, TikTok, Instagram, X & more), one key.

captcha.cc Human Verification

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Human verification CAPTCHA with visual and selective-listening audio challenges.

captcha-mcp

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PoW CAPTCHA verification for MCP clients.

• Challenge: Request a fresh PoW challenge from the PowForge captcha service. Returns {id, salt, difficulty, signature, instructions}. The agent must find a nonce such that SHA-256(salt + nonce) has at
• Verify: Verify a PoW solution. Input: {salt, nonce, id, signature, algo?, difficulty?} from a prior challenge call plus the nonce the agent computed. Returns a 5-minute HMAC-signed token on success, o
• Status: Return PowForge captcha server health, lifetime stats (pow_solves, ln_skips, challenges_issued), and L402 endpoint metadata (scope, price_sats, paid endpoint URL). Use this to discover the Lig

CAPTCHA Solve API

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Value: Pay-per-use CAPTCHA solving API supporting Turnstile, hCaptcha, reCAPTCHA v2, Arkose, and Cloudflare.

• Solve Captcha: Solve CAPTCHA challenge (Turnstile, hCaptcha, reCAPTCHA v2, Arkose, Cloudflare). Requires x402 payment on Base.

Captcha Solver

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Solve reCAPTCHA v2/v3, hCaptcha, Cloudflare Turnstile and image captchas.

captchaflow

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Universal captcha solving with the industry-standard createTask / getTaskResult protocol, 19 task

Captia Industrial Knowledge

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Industrial glossary, protocol reference, technical search and OEE calculation.

Caption File Check

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Check WebVTT, SRT, and TTML/IMSC caption files from a public URL or chat attachment for supported conformance, encoding, in-file timing, overlaps, line…

• Caption Check: Preflight one caption or subtitle file before delivery. Attach a WebVTT (.vtt), SRT (.srt), or TTML/IMSC (.ttml/.xml) caption file in chat or give a publicly fetchable URL and it downlo
• Caption Compare: Compare exactly two caption or subtitle files under identical bounded checks: an original versus its translated track, before versus after a timing fix, or a format migration. Attach

One call burns captions into your video.

CaptionPipe

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Give CaptionPipe a video and it gives the video back with the captions burned in.

• Create Upload: Only for a video file on the caller's side, at most 2 GB. Returns a PUT-only upload URL for one object, valid for one hour; PUT the raw bytes to it, then call caption_video with the ret
• Caption Video: Start captioning one video. Pass exactly one source: inputUrl, a direct https link to a video file (platform pages such as YouTube or TikTok are refused), or jobId from create_upload af
• Get Caption Job: Poll a job. While it runs, retryAfterSeconds says how long to wait before calling again. When status is completed, artifacts holds signed links to the captioned MP4, SRT, VTT, ASS and