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The directory of tools for agents

75,919 tools · Reset filters
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

3rd Generation Testing (3TG) — generate deterministic test suites from Markdown spec tables via MCP.

Listing info 65/100
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Use case: finance
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453)

Resolves a 4-byte function selector (e.g. 0x70a08231) to candidate human-readable signatures via 4byte.directory. Accepts a bare selector or f…

Listing info 80/100
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402-LAB

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

Budget-capped x402 buyer: delegate USDC in plain words, agent discovers and pays per call.

Listing info 75/100
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402-mcp

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

AI agents discover, pay for, and consume any Lightning-gated API autonomously

Listing info 65/100
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402-preflight

x402-bazaar
Use case: finance
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453)

x402-preflight: confirm your wallet can transact, and see your balance, in one certified call. Pay $0.01 USDC on Base, get a signed on-chain-a…

Listing info 80/100
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Use case: finance · security
Protocols: APIx402
Pricing: 0.05 USDC / call (eip155:8453)

Ranks a wallet's active token approvals by USD-at-risk x unlimited-allowance x unlabelled-spender, and returns a prioritised revoke queue. App…

Listing info 80/100
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402cron

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

Paid cron for AI agents: we call your https URL on schedule, signed. No account, paid with x402.

Listing info 75/100
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402cron

x402-bazaar
Use case: communication · automation
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453)

Cron for AI agents: signed HTTP deliveries on a cron expression. ENTRY pack: 20 delivery credits for $0.02 ($0.001/delivery). Same service, be…

Listing info 80/100
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402cron

x402-bazaar
Use case: communication · automation
Protocols: APIx402
Pricing: 2 USDC / call (eip155:8453)

Cron for AI agents: signed HTTP deliveries on a cron expression. BEST-RATE pack: 4000 delivery credits for $2 ($0.0005/delivery) - intro price…

Listing info 80/100
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402index

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

Search 15,000+ paid API endpoints across the L402, x402, and MPP protocols on 402index.io

Listing info 65/100
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402oracle

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

Signed verification attestations for agent decisions: business, price, freshness, claim checks.

Listing info 75/100
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402oracle

x402-bazaar
Use case: data
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453); 20000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 20000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)

Is this URL live, and has this page changed? Check a URL is up and its data is fresh before your agent acts on its contents, to detect stale d…

Listing info 80/100
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