Tools for a more open agent web.

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402registry

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

Agent-visibility check: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site? ENTRY pack: 1 check for $…

Listing info 80/100
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402registry

x402-bazaar
Use case: security
Protocols: APIx402
Pricing: 5 USDC / call (eip155:8453)

Agent-visibility check: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site? BEST-RATE pack: 4 checks …

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

Catalog snapshot: every site in the 402registry catalog of sites verified visible to AI crawlers, as one JSON file rendered at purchase, every…

Listing info 80/100
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Use case: security
Protocols: APIx402
Pricing: 0.1 USDC / call (eip155:8453)

Quick review: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site? Every rule, no model: $0.1 for one …

Listing info 80/100
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402sentinel-mcp

official-mcp
Use case: finance · security
Protocols: MCP
Pricing: Price not supplied by publisher

x402 payment safety for AI agents: counterparty risk gate, payment firewall, compliance, RWA gate.

Listing info 65/100
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Use case: other
Protocols: APIx402
Pricing: 0.002 USDC / call (eip155:8453)

Assess an x402 counterparty before paying. POST {target:{payto_address}, payment_context?, policy?}; payto may be a 0x EVM (Base) or base58 So…

Listing info 80/100
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Use case: data · finance
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453); 20000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Is this payment address safe to pay? DEEP version — deep counterparty assessment: same shape as /api/assess but scans more on-chain settlement…

Listing info 80/100
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Use case: finance
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453); 20000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

RWA risk gate: score a TOKENIZED ASSET (treasury, stock, credit) BEFORE an agent buys it. POST {target:{payto_address:<token contract>, networ…

Listing info 80/100
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Use case: security
Protocols: APIx402
Pricing: 0.02 USDC / call (eip155:8453); 20000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Pre-pay COMPLIANCE screen for regulated onchain flows. POST {target:{payto_address, agent_id?}, payment_context?:{amount,asset}} returns compl…

Listing info 80/100
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Use case: finance
Protocols: APIx402
Pricing: 0.002 USDC / call (eip155:8453); 2000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Buyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the payment against your ow…

Listing info 80/100
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Use case: finance
Protocols: APIx402
Pricing: 0.002 USDC / call (eip155:8453); 2000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)

Same input as /api/assess, but returns a trimmed action-oriented view: the allow/limit/deny decision plus a wallet-ready spending policy (max_…

Listing info 80/100
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402shield

official-mcp
Use case: finance · security
Protocols: MCP
Pricing: Price not supplied by publisher

x402 payment security and pre-execution transaction risk screening for autonomous AI agents.

Listing info 75/100
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