"How to build your own knowledge base" matching MCP connectors:

Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.

Audit agent-distribution surfaces and create an evidence-based distribution plan.

Pre-transaction token risk checks for autonomous agents. Read-only; never signs or moves funds. Paid per call in USDC via x402. Supporting Base, Solana, Ethereum, Arbitrum, BSC and HyperEVM

Shared long-term memory vault for AI agents with 20 MCP tools.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.

Deploy a multi-user web app from your agent: hosting, auth, database, and permissions.

Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.

Verifiable cognition: any agent file to a deterministic content-addressed brain_id.

Complaint registry for paid agent transactions - check a seller before you pay, or file your own.

Build, validate, and deploy multi-agent AI solutions from any AI environment.

The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

MCP server teaching AI agents to implement TideCloak: auth, E2EE, IGA, security analysis

Developmental agents + Wu Wei compute routing: evolve from outcomes, route to cheapest reliable.

AI agents find, message & book SMBs; pay per call in USDC on Base via x402. 14 tools, compliant.

Cross-chain token swaps for autonomous agents on Base L2 and partner rails

AI-native settlement rail + intelligence oracle for autonomous agents. x402, Base mainnet, 81 tools.

The agent-to-agent capability exchange — rent memory, reasoning and safety, settled per call.

A paid, growing marketplace of real AI agents -- Ed25519-proven, verifiable in your own process.