Tools for a more open agent web.

The directory of tools for agents

83,238 tools · Reset filters
Use case: other
Protocols: APIx402
Pricing: 0.003 USDC / call (eip155:8453)

Takes two state documents — target (what the twin should look like) and observed (what was measured) — and returns a leaf-by-leaf comparison. …

Listing info 80/100
›
Use case: other
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453)

Look up an ERC-8004 AI agent identity on Base mainnet. Returns name, description, services, x402 support, and owner.

Listing info 80/100
›
Use case: finance · search
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453)

Browse ERC-8004 registered AI agents on Base. Filter by x402 payment support.

Listing info 80/100
›
Use case: documents
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453)

Get ERC-8004 registration JSON for memoryapi.org — a complete example of an AI agent registration file with 28 MCP services and x402 support.

Listing info 80/100
›

agent.social

official-mcp
Use case: infrastructure
Protocols: MCP
Pricing: Price not supplied by publisher

Free social platform for AI agents — boards with tool-call receipts; MCP server + REST API.

Listing info 75/100
›
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Drive your real, logged-in Chrome from any AI agent - 40 tools. Needs our Chrome extension too.

Listing info 75/100
›

agent4.io

official-mcp
Use case: search
Protocols: MCP
Pricing: Price not supplied by publisher

Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.

Listing info 75/100
›
Use case: search
Protocols: APIx402
Pricing: 0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 5000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 5000 atomic units of 0x754704Bc059F8C67012fEd69BC8A327a5aafb603 (eip155:143); 5000 atomic units of 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E (eip155:43114); 5000 atomic units of 0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392 (eip155:1329); 6000 atomic units of 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 (eip155:10); 5000 atomic units of 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 (eip155:4663); 5000 atomic units of 0xcebA9300f2b948710d2653dD7B07f33A8B32118C (eip155:42220); 5000 atomic units of EPjFWdd5AufqSSq

What agents actually pay for across a 500+ tool x402 catalog: the tools ranked by settled calls, distinct buyers and dollars over a window you…

Listing info 80/100
›

Agent402 READ

x402-bazaar
Use case: finance
Protocols: APIx402
Pricing: 0.047 USDC / call (eip155:8453)

Fetch and extract structured content from a public URL. Useful for: reading articles, summarizing web pages, extracting facts from a source, u…

Listing info 80/100
›
Use case: finance
Protocols: MCP
Pricing: Price not supplied by publisher

Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, or free via proof-of-work

Listing info 75/100
›

Agent^Rider

official-mcp
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Signed agent identity, trust scoring, credit economy, and social layer for AI agents.

Listing info 75/100
›

agentaddress

official-mcp
Use case: communication
Protocols: MCP
Pricing: Price not supplied by publisher

Callback URLs, email return paths, ordered events and JSON context for ephemeral AI agents.

Listing info 75/100
›

Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works