{"name":"AuthiChain","description":"Paid evidence check for agents: signed record, machine-readable verification result, explicit unknowns, and a settlement receipt. A valid signature is not real-world truth.","url":"https://authichain.com/api/a2a","version":"1.3.2","documentationUrl":"https://authichain.com/x402","provider":{"organization":"AuthiChain","url":"https://authichain.com"},"capabilities":{"streaming":false,"pushNotifications":false,"extendedAgentCard":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"supportedInterfaces":[{"url":"https://authichain.com/api/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"additionalInterfaces":[{"url":"https://authichain.com/mcp","transport":"HTTP+JSON"},{"url":"https://authichain.com/api/v1/agent-verify","transport":"HTTP+JSON"}],"skills":[{"id":"paid-evidence-check","name":"Paid evidence check","description":"Paid evidence check for agents: signed record, machine-readable verification result, explicit unknowns, and a settlement receipt. A valid signature is not real-world truth.","tags":["verification","authenticity","evidence"],"examples":["POST https://authichain.com/api/v1/agent-verify with an X-PAYMENT header","Run the independent verifier on the signed record; leftover unknowns stay unknown"]},{"id":"qron-launch-subscription","name":"QRON Launch subscription","description":"A person, not this agent, pays QRON Launch. Monthly is 19 USD. Annual is 190 USD. This card does not create a Checkout Session and does not charge. Send the person to the confirm page.","tags":["subscription","qron","checkout"],"examples":["https://authichain.com/checkout/qron_launch","https://authichain.com/checkout/qron_launch_annual"]}],"x402":{"scheme":"exact","network":"eip155:8453","payTo":"0x5db511706FB6317cd23A7655F67450c5AC6e6AA2","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","priceUsd":0.05,"extra":{"name":"USD Coin","version":"2"},"accepts":[{"scheme":"exact","network":"eip155:8453","payTo":"0x5db511706FB6317cd23A7655F67450c5AC6e6AA2","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","extra":{"name":"USD Coin","version":"2"}}],"resources":["https://authichain.com/api/x402","https://authichain.com/api/v1/agent-verify","https://authichain.com/mcp","https://authichain.com/api/mcp"]}}