"Free Network Graph Visualization Tools (No Account Required)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Drop-in EU AI Act compliance for LangChain & CrewAI. Equip your autonomous swarms with 19 A-graded MCP tools for Zero-Knowledge auditing, NIP-98 security, and L402 micropayments. Bitcoin Stratigraphy is the premier Layer-402 infrastructure for autonomous AI swarms. We bridge the critical gap between autonomous agent capabilities and enterprise legal compliance, delivering a mathematically un-cheat-able, cryptographically verifiable chain-of-custody for agent decisions. Ranked with 19 'A-Graded' MCP Tools, this engine provides drop-in telemetry, security, and payment architecture for production-grade AI. For CISOs: EU AI Act Compliance & Security Deploying autonomous agents without verifiable audit trails is a massive regulatory liability. We solve this natively: - The Zero-Knowledge Flight Recorder: Agent actions are cryptographically hashed and anchored. Using Groth16 Zero-Knowledge receipts, we generate mathematical proofs of an agent's execution history *without* exposing proprietary corporate IP or PII to public logs. - Zero-Trust Client Verification:** Air-gapped, browser-based verifiers allow corporate risk teams to mathematically validate Ed25519 signatures and RFC 6962 Merkle inclusion proofs offline. - Enterprise NIP-98 Kill Switch:** Instantly sever compromised agent keys from the network to physically prevent automated drain attacks or prompt-injection hijacking. For Finance & Engineering: The L402 Fiat Bridge We have solved the machine-to-machine payment gap. Corporate finance departments operate on 30-day billing cycles and fiat credit cards, not Lightning wallets. - The $500 Enterprise Block: Engineering managers can securely purchase a 30-day Enterprise API Block using a standard corporate credit card via Stripe. - Macaroon Minting:** This fiat transaction instantly funds a dedicated treasury wallet, minting a secure Macaroon (verifiable digital bearer token) granting the organization's AI agents 100 prepaid heuristic scanner calls. - Strict Treasury Caps: Hardcoded 500,000-satoshi treasury limits (via NWC) protect corporate budgets from runaway LLM loops. For Developers: The 19 A-Graded Tools Stop building compliance infrastructure from scratch. Our Model Context Protocol (MCP) endpoints are stress-tested and graded for production: - Heuristic Telemetry & State Grounding: High-fidelity environmental scanning, diffing, and thermodynamic state anchoring to eliminate LLM hallucinations. - Atomic Composability: Agents can chain multiple tools into infinite data pipelines settled under a single macro-invoice. - Framework Agnostic: Drop-in compatibility with LangChain, CrewAI, and AutoGPT. Integrate in Minutes: Developers can clone our public GitHub boilerplate (`CharlesStrogish/zk-flight-recorder-template`) to instantly wire their agents to our L402 data engine. [View the Architecture Blog](https://bitcoinstratigraphy.com/blog/eu-ai-act-compliance-agents/) | [Get Developer Access](https://bitcoinstratigraphy.com)
Shared graph-based task tracker for agents, agents’ agents and people. Source-available, free cloud.
Phones for your agents: each agent gets its own cloud Android phone over MCP, reads the screen, taps, types and installs your APK. Ready in ~20 s, $0.01/min, parked phones free.
OpenAny is the B2A (business to agent) marketplace. Add one MCP endpoint, https://mcp.openany.si, and your agent can find and use 3,200+ APIs and 168+ AI models. APIs cover social and content (X, TikTok and more), SEO, search and scraping (DataForSEO, Serper, Tavily), crypto and on-chain data (CoinGecko, DefiLlama, DexScreener, Hyperliquid, Polymarket), company and lead data (Hunter, Crustdata, QCC), finance and macro (FRED, Financial Datasets), and legal (PKULaw). Models include chat and reasoning (GPT, Claude, Gemini, DeepSeek, Qwen, Kimi, GLM, MiniMax), image (Midjourney, FLUX, Nano Banana, Seedream, GPT Image), video (Veo, Kling, Seedance, Hailuo, Wan) and audio. Searching and checking prices is free with no key. You only need an OpenAny API key to run a call, and you pay per call.
Fleet entry point: 22 hosted MCP servers, 160 tools, 110 free. Searches 138 agent skills.
Execution platform for AI agents on Firecracker microVMs in the EU. Interactive Linux sandboxes with root, templates for Python, Node.js, Go, Rust and a headless browser, public HTTPS URLs. Background jobs that outlive the connection, batches of up to 1,000 jobs with dependencies, hard cost caps reserved up front, execution receipts with SHA-256, log digests that fit the context. IPv4, dual-stack or IPv6-only with its own public address, allowlists or no network. WASI runtime for small tasks. Idle sandboxes sleep and keep their files. Also REST API, Python SDK and LangChain.
AI jobs, contracts, execution proof, translation and data quality over MCP + x402 USDC on Base.
Draftbase is an MCP-native headless CMS. 30 tools cover templates, entries, media, MDX components, revisions and scheduled publishing. It's efficient with context: list_entries takes a fields list, so the agent pulls only the keys it needs, and batch tools change status on many entries in one call. Auth is OAuth 2.1 with PKCE, so there's no API key to paste. Agents can draft and edit, but publishing is a separate tool call you can choose not to allow.
Get your AI an address so other people and their AIs, from any company, can reach it. No sign-in.
Group chat for AI agents: 11 tools for messages, replies, approvals, wake links and asking to join.
Free read-only discovery of owner-published finance agent profiles and source-linked discussions.
Work with roles, tasks and delegated agent work within current workspace permissions. Setup: In a remote MCP client that supports Streamable HTTP and OAuth, add https://platform.samuelz.com/api/v1/mcp/operator?toolset=agent. Sign in to Samuelz and select your authorized workspace. An active workspace membership and the relevant module permissions are required. Review the requested permissions before authorizing. Existing approval requirements continue to apply.
Deltabridge brings an AI-native cyber threat intelligence platform into your AI agent. Search a knowledge graph of 200,000+ threat actors, malware families, vulnerabilities, indicators and campaigns, mapped to MITRE ATT&CK. Look up and enrich IOCs, trace links between entities and read living briefs built from 300+ open sources. Read-only, scoped to your organisation, with OAuth sign-in or an API key. Included on Researcher, Business and Enterprise plans.
Agent tools for discovery, payment safety, data extraction, and DeFi.
Safety tools for AI agents: safe page reader, prompt-injection, secrets, PII and MCP server scans
Context and control for any AI. Agent identity, scoped access, and proof across tools.
Connect Xora to review your Xorventa account and request supported work under owner controls.
Find Agent Skills for the task at hand from an index of 50,000+ public skills. find_skills returns up to three matches, each with a trust score, a one-line benefit, its context cost in tokens and an install command; get_skill returns a skill's SKILL.md to use once without installing; install_command gives the one-line install for a given agent. No API key. Website: https://aiqbench.com/skills
Discovery registry for AI agents: 700+ APIs, MCP servers and CLIs, health-checked with real requests (hourly for priority entries, otherwise on a rolling daily cycle) — full initialize + tools/list handshakes for MCP, real calls for APIs — plus response-schema validation that catches responses which parse fine but are missing a required field.
Launch and keep agent tools working: MCP checks, registry publishing, x402 payment checks.
Trend-ranked fashion, sneakers and interior for shopping agents: outfits, sizes, brands. Free key.
No longer listed separately (still callable): which public agents declare a fit for a task.
Can an AI agent buy on this French store? 500 stores tested: score, guest checkout, UCP. Free.
Open network where AI agents find each other, message, delegate tasks and earn credits for work.
Connect your Cormak.app account to manage projects, task boards, AI agents and creative work from your AI assistant. The server exposes up to 83 tools, limited to the OAuth permissions you choose. Organize tasks, read and update project drafts, inspect saved studio results, create product descriptions and images, and request supported photo, video, 3D, voiceover, SEO and advertising operations. Publishing saved projects requires separate owner approval. Reading and ordinary manual task management do not themselves start paid generation. AI operations use credits from your connected Cormak account and require owner confirmation, or an existing bounded spending permission for supported product operations. You can limit and revoke connections in Cormak. The MCP does not provide bank access, payment details or provider API keys. CRM, streaming website generation and business-plan generation are not exposed through this integration. Get started: https://app.cormak.app/mcp Setup guide and examples: https://cormak.app/blog/cormak-mcp-guide Privacy: https://cormak.app/privacy Support: https://cormak.app/contact
490 main tools, 474 production tools for agents; Base USDC x402 and shared free tier.
A hosted MCP suite providing workflow primitives: web search, content fetching, compression, deduplication, cost/budget management, and agent memory pipelines.
NAIF Gravity helps developers and agents diagnose MCP, API, webhook, and integration failures. Start with a free diagnostic for one failure and get structured evidence. Paid repairs require an approved quote for a defined scope and verified payment.
Search a curated directory of agent tools, MCP servers, APIs, protocols and skills. No auth.
ERC-8004 agent identity, on-chain subscriptions, reputation, A2A tasks and chat over 53 tools.
Your agent finds other people's agents, exchanges on its own. Firewalled.
Call when a remote MCP tools/list is too large: free measure, then slim index
Hand work between AI agents across devices and vendors: one-shot links or an E2EE channel.
32 agent utilities and 51 premium analyzers. API key required; automated checkout not active.
Connect AI agents to Emitd email sending, message tracking, templates, and automations. Emitd hosts a Model Context Protocol server for integrating supported email operations into AI-agent workflows. Connect a compatible client to the hosted endpoint (https://mcp.emitd.com/mcp) and authenticate with an Emitd API key. Available tools depend on the key's permissions and enabled features. Emitd's capability areas include sending email, message activity, templates, contacts, audiences, segments, domains, analytics, inbound email, broadcasts, automations, webhooks, and suppressions. Use restricted keys, sending guardrails, and approval settings appropriate to each workflow. For more information check https://emitd.com
Job network for AI agents: join, apply to jobs, post jobs, check work records. OAuth for writes.
Search the Ricuicui module catalogue, read the documentation and get the latest version of Ricuicui, the agentic browser and AI workstation with local AI and agents. Read-only tools: search_modules, get_module, read_documentation, get_latest_version. No key needed.
Run your NeoMind AI team (https://neomindhub.com) from any MCP client: get briefings, review leads and customer enquiries, ask any AI teammate, and approve or reject their work. OAuth with a NeoMind account.
Single-connection MCP & A2A gateway indexing 490+ verified tools with x402 & MPP settlement.
Autonomous agent clearinghouse indexing 23,000+ MCP, A2A, x402 & MPP tools with instant execution.
