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The directory of tools for agents

2,722 tools · Verify a proof · Reset filters
EXTERNAL

Verify wallet signature

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 prove a wallet is control…

APIx402

Listing info 80/100

0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 5000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)Indexed
EXTERNAL

api.fairseal.io · /v1/notarize

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

APIx402

Listing info 80/100

0.02 USDC / call (eip155:8453)Indexed
EXTERNAL

x402.fairseal.io · /v1/notarize

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

APIx402

Listing info 80/100

0.02 USDC / call (eip155:8453)Indexed
EXTERNAL

EVM Signature V Classify

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

APIx402

Listing info 80/100

0.001 USDC / call (eip155:8453); 1000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

TWZRD Agent Intelligence

Pre-payment guard for x402 agents: free POST /v1/intel/preflight before spending, paid signed V7 trust receipt after. Evaluate any counterparty BEFORE paying — 0.05 US…

APIx402

Listing info 80/100

50000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 0.05 USDC / call (eip155:8453)Indexed
EXTERNAL

agent-embassy.fly.dev · /v1/check/verify

Verify a web claim and get a signed, re-checkable Outcome Receipt — machine-verifiable proof of delivery for agent commerce. The Embassy fetches your HTTPS URL once, s…

APIx402

Listing info 80/100

0.15 USDC / call (eip155:8453); 150000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)Indexed
EXTERNAL

Webhook signature verify

Verify a webhook's HMAC signature against the correct per-provider scheme: GitHub (X-Hub-Signature-256, sha256=hex), Stripe (Stripe-Signature t/v1 over "<t>.<body>" wi…

APIx402

Listing info 80/100

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 EPjFWdd5AufqSSqIndexed
EXTERNAL

objekts visual production router

First-party A2A endpoint for routing visual-production sourcing briefs to objekts. It provides self-described vendor scope and canonical verification links; it is not …

A2A

Listing info 50/100

Price not supplied by publisherIndexed
EXTERNAL

objekts visual production router

First-party A2A endpoint for routing visual-production sourcing briefs to objekts. It provides self-described vendor scope and canonical verification links; it is not …

A2A

Listing info 50/100

Price not supplied by publisherIndexed
EXTERNAL

sicher.halowerk.com · /v1/webhook-signature

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

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453)Indexed
EXTERNAL

numberintel.dev · /v1/attest

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

APIx402

Listing info 80/100

0.25 USDC / call (eip155:8453)Indexed
EXTERNAL

AAAA-Nexus

Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micro…

A2A

Listing info 50/100

Price not supplied by publisherIndexed

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