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Vextorium

x402-bazaar
Use case: development
Protocols: APIx402
Pricing: 0.003 USDC / call (eip155:8453); 3000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 3000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 3000 atomic units of 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 (eip155:10); 3000 atomic units of 0x3600000000000000000000000000000000000000 (eip155:5042)

Translates a 4-byte function selector (e.g. 0xa9059cbb) or a 32-byte event topic into its human-readable signature (e.g. transfer(address,uint…

Listing info 80/100
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Vextorium

x402-bazaar
Use case: data
Protocols: APIx402
Pricing: 0.003 USDC / call (eip155:8453); 3000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 3000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 3000 atomic units of 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 (eip155:10); 3000 atomic units of 0x3600000000000000000000000000000000000000 (eip155:5042)

Verify an Ethereum signature: a personal_sign (EIP-191) message or EIP-712 typed data. Recovers the signer address and, if you pass one, confi…

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

Italian company registry lookup, verification and KYB pre-check using official/public sources: Registro Imprese / InfoCamere HVD, VIES, GLEIF,…

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

Paid x402 MCP utilities for AI agents on Base: JSON, HTML, CSV, hashing, attestations.

Listing info 65/100
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Use case: finance
Protocols: APIx402
Pricing: 0.003 USDC / call (eip155:8453); 3000 atomic units of 0x3600000000000000000000000000000000000000 (eip155:5042); 3000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000000000000000 atomic units of 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d (eip155:56); 10000000000000000 atomic units of 0xcE24439F2D9C6a2289F741120FE202248B666666 (eip155:56)

Did that Arc payment actually land? Pass ?tx=0x… and optionally ?to=0x… and ?expect=1.50 to get the payer, the amount, whether it reached your…

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

Merchant verification for AI shopping agents.

Listing info 65/100
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Use case: finance
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

GSC's payment door — a real one-cent settlement on Base, signed receipt returned. Prove your agent's payment stack here.

Listing info 80/100
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Use case: commerce
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

One paid call on au-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record …

Listing info 80/100
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Use case: commerce
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

One paid call on ca-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record …

Listing info 80/100
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Use case: commerce
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record …

Listing info 80/100
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Use case: commerce
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

One paid call on de-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record …

Listing info 80/100
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Use case: commerce
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0xB2000000000000000000002fEb517dFeC7415344 (eip155:8453)

One paid call on fr-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record …

Listing info 80/100
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