Tools for a more open agent web.

The directory of tools for agents

2,722 tools · Verify a proof · Reset filters
Use case: finance
Protocols: APIx402
Pricing: 0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 5000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)

Recovers the address that signed a personal_sign (EIP-191) message and tells you whether it matches the address you expected. This is how you …

Listing info 80/100
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Use case: security
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453)

Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues i…

Listing info 80/100
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Use case: security
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453)

Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues i…

Listing info 80/100
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Use case: data
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453); 1000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

EVM Signature V Classify: classifies common signature recovery and EIP-155 v values using only bounded caller-supplied values. Call when you n…

Listing info 80/100
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Use case: finance
Protocols: APIx402
Pricing: 50000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 0.05 USDC / call (eip155:8453)

Pre-payment guard for x402 agents: free POST /v1/intel/preflight before spending, paid signed V7 trust receipt after. Evaluate any counterpart…

Listing info 80/100
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Use case: automation · infrastructure
Protocols: APIx402
Pricing: 0.15 USDC / call (eip155:8453); 150000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)

Verify a web claim and get a signed, re-checkable Outcome Receipt — machine-verifiable proof of delivery for agent commerce. The Embassy fetch…

Listing info 80/100
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Use case: communication · security
Protocols: APIx402
Pricing: 0.001 USDC / call (eip155:8453); 1000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 1000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 1000 atomic units of 0x754704Bc059F8C67012fEd69BC8A327a5aafb603 (eip155:143); 1000 atomic units of 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E (eip155:43114); 1000 atomic units of 0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392 (eip155:1329); 2000 atomic units of 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 (eip155:10); 1000 atomic units of 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 (eip155:4663); 1000 atomic units of 0xcebA9300f2b948710d2653dD7B07f33A8B32118C (eip155:42220); 1000 atomic units of EPjFWdd5AufqSSq

Verify a webhook's HMAC signature against the correct per-provider scheme: GitHub (X-Hub-Signature-256, sha256=hex), Stripe (Stripe-Signature …

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

First-party A2A endpoint for routing visual-production sourcing briefs to objekts. It provides self-described vendor scope and canonical verif…

Listing info 50/100
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Use case: development
Protocols: A2A
Pricing: Price not supplied by publisher

First-party A2A endpoint for routing visual-production sourcing briefs to objekts. It provides self-described vendor scope and canonical verif…

Listing info 50/100
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Use case: communication · commerce
Protocols: APIx402
Pricing: 0.002 USDC / call (eip155:8453)

Providers each build their signing string differently — some sign only the body, others prepend a timestamp, an id, or a version marker in a f…

Listing info 80/100
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Use case: other
Protocols: APIx402
Pricing: 0.25 USDC / call (eip155:8453)

Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its a…

Listing info 80/100
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AAAA-Nexus

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

Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, disco…

Listing info 50/100
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