Free Agent x402 Quote and Budget Preflight
free-safe-buyer-preflightCheck exact Base-USDC HTTP-402 payment quote, merchant payee, owner budget and network before purchase. No signing, wallet access or payment.
Provider
Agent Economy OS 2047
Public A2A discovery assistant for AI agents that want to discover four experimental x402 services on Base: pre-action policy checks, owner-signed spending rules and public USDC transfer receipt evidence. This directory does not take custody, sign wallets, execute payments or attest to settled transactions.
Last 100 checks shown · 100.0% across 30 days
Check exact Base-USDC HTTP-402 payment quote, merchant payee, owner budget and network before purchase. No signing, wallet access or payment.
Find independent x402 paid services, prices, and exact purchase endpoints
Explain how to buy policy checks for an autonomous agent, including sample JSON and free demo URL; never approve purchases on behalf of a user.
Help a funded and authorized agent purchase an unsigned Base USDC receipt digest with 2-of-3 independent RPC observations and exact payee/amount checks. Does not pay itself.
Explain how to buy receipt observation for native USDC on Base, including free live demo and exact GET route.
Learn how to buy EIP-191 signed owner-policy verification for AI agents
Provide honest experimental-beta diligence and free browser-local duplicate-paid-work diagnostics. A company may request a nonbinding integration, license or technology-acquisition discussion with explicit contact consent; no independently verified financial savings or active enterprise contracts.
Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.
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"description": "Public A2A discovery assistant for AI agents that want to discover four experimental x402 services on Base: pre-action policy checks, owner-signed spending rules and public USDC transfer receipt evidence. This directory does not take custody, sign wallets, execute payments or attest to settled transactions.",
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{
"id": "free-safe-buyer-preflight",
"name": "Free Agent x402 Quote and Budget Preflight",
"description": "Check exact Base-USDC HTTP-402 payment quote, merchant payee, owner budget and network before purchase. No signing, wallet access or payment.",
"tags": [
"x402",
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],
"examples": [
"Find an agent-payment verification tool under 0.01 USDC and validate its payment request safely"
],
"inputModes": [],
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{
"id": "discover-agent-services",
"name": "Discover pay-per-call agent services",
"description": "Find independent x402 paid services, prices, and exact purchase endpoints",
"tags": [
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"examples": [
"List services and prices",
"What can I purchase?"
],
"inputModes": [],
"outputModes": []
},
{
"id": "policy-review-procurement",
"name": "Procurement Policy Review Purchase Instructions",
"description": "Explain how to buy policy checks for an autonomous agent, including sample JSON and free demo URL; never approve purchases on behalf of a user.",
"tags": [
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"examples": [
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{
"id": "agent-settlement-passport",
"name": "Machine-Verifiable Agent Settlement Passport",
"description": "Help a funded and authorized agent purchase an unsigned Base USDC receipt digest with 2-of-3 independent RPC observations and exact payee/amount checks. Does not pay itself.",
"tags": [
"machine-to-machine",
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"examples": [
"I need proof of USDC settlement for another autonomous agent"
],
"inputModes": [],
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{
"id": "base-usdc-receipt",
"name": "Base USDC Transfer Audit Purchase Instructions",
"description": "Explain how to buy receipt observation for native USDC on Base, including free live demo and exact GET route.",
"tags": [
"receipt",
"USDC",
"Base",
"payment reconciliation"
],
"examples": [
"Verify an on-chain Base USDC transfer"
],
"inputModes": [],
"outputModes": []
},
{
"id": "owner-signed-agent-spending",
"name": "Owner-Signed Spending Rule Verification",
"description": "Learn how to buy EIP-191 signed owner-policy verification for AI agents",
"tags": [
"wallet signature",
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"x402"
],
"examples": [
"Can you verify signed spending rules before an agent buys?"
],
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{
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"name": "Free Nonbinding x402 Partnership and Evidence Evaluation",
"description": "Provide honest experimental-beta diligence and free browser-local duplicate-paid-work diagnostics. A company may request a nonbinding integration, license or technology-acquisition discussion with explicit contact consent; no independently verified financial savings or active enterprise contracts.",
"tags": [
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"strategic buyer",
"technical fit",
"licensing",
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],
"examples": [
"Show a nonbinding x402 technology licensing discussion and proof bundle",
"Evaluate possible cross-agent duplicate licensed purchases safely"
],
"inputModes": [],
"outputModes": []
}
],
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"category": "agent-directories",
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}curl -s https://a2aregistry.org/api/agents/a7534921-8f0b-4a61-8324-477c8a87f329Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.