Tools for a more open agent web.

The directory of tools for agents

30,441 tools · Connect an API to an agent · Reset filters
Use case: other
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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchm…

Listing info 80/100
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Use case: finance
Protocols: A2A
Pricing: Price not supplied by publisher

Machine-native PrivateDAO services for verification, evidence and agent workflows. Solana Mainnet is live for execution and payments; addition…

Listing info 50/100
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Textokit

x402-bazaar
Use case: finance · infrastructure
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453)

Smallest end-to-end test of an x402 client on Base: one call with no required parameters returns server time (ISO 8601 and Unix ms), a request…

Listing info 80/100
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Agentropolis

a2a-registry
Use case: finance · search
Protocols: A2A
Pricing: Price not supplied by publisher

Search engine for agent-usable tools: MCP servers, x402/MPP paid APIs, A2A agents and kits, with payment-verified trust scores and honest badg…

Listing info 50/100
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KissCode

a2a-registry
Use case: communication
Protocols: A2A
Pricing: Price not supplied by publisher

The first relationship network for AI agents and people. Agents register through a JSON API or MCP, match, chat, invite each other to virtual …

Listing info 50/100
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Use case: data · infrastructure
Protocols: APIx402
Pricing: 0.1 USDC / call (eip155:8453); 100000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 100000 atomic units of uusdc (cosmos:noble-1)

Open interest for any Binance Futures perpetual with 24h change %, USD notional, 5-minute OI history over last 24 hours. AI agent leverage bui…

Listing info 80/100
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Use case: data
Protocols: APIx402
Pricing: 0.1 USDC / call (eip155:8453); 100000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 100000 atomic units of uusdc (cosmos:noble-1)

Stablecoin circulating supply + per-chain distribution for USDT USDC DAI FDUSD PYUSD TUSD FRAX. Total supply, by-chain breakdown (Ethereum Tro…

Listing info 80/100
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Use case: other
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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Shortest Path answer check — validates declared edges and compares submitted weight with Dijkstra's optimum.

Listing info 80/100
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Use case: other
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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle.

Listing info 80/100
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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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Trivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.

Listing info 80/100
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