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PostAgent

x402-bazaar
Use case: documents · automation
Protocols: APIx402
Pricing: 1.24 USDC / call (eip155:8453)

Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proo…

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

Publish a deterministic claim about a Base proxy and let the market try to break it. You assert that a contract's implementation slot held one…

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

Verify email addresses, clean lists and check spamtrap, disposable, spambot and complainer lists.

Listing info 75/100
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Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Is this address safe to pay? OFAC sanctions, ERC-8004 reputation, contract analysis.

Listing info 75/100
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Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Neutral referee for legal-AI output: flags orphan quotes and uncited claims. Not legal advice.

Listing info 65/100
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Use case: search · communication
Protocols: APIx402
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e (eip155:84532)

Which SaaS vendors a company uses, from DNS TXT verification tokens: Google Workspace, Microsoft 365, Apple, Facebook, Atlassian, Stripe, Docu…

Listing info 80/100
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Use case: other
Protocols: APIx402
Pricing: 0.008 USDC / call (eip155:8453); 8000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 8000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137)

Highest-demand x402 services tagged 'verification': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for…

Listing info 80/100
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Assinafy

official-mcp
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Send documents for legally valid e-signature in Brazil, track signers and download signed files.

Listing info 75/100
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fairsign

official-mcp
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

Fill and sign PDFs in the browser, send for signature, and track who has signed.

Listing info 75/100
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heu-mcp

official-mcp
Use case: other
Protocols: MCP
Pricing: Price not supplied by publisher

HEU Legal e-signature MCP: manage HEU documents and PDFs, prompt signers, download PDFs.

Listing info 75/100
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Moneo

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

A guarded wallet for AI agents on Robinhood Chain: a spending policy runs before every signature.

Listing info 75/100
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