{"domain":"meridian.miodiollc.com","count":2,"changes":[{"captured_at":"2026-11-04T04:38:21.891468","card_hash":"c2cba93484aa8e076cdea49c9c825f8f4895337c4367fb27f709bebd617b0bc7","previous_card_hash":"b6a14b84755a10e7d90c21a2cc2455eb55223367b42c302ccf73bd3ffa6791ab","diff":{"skills_added":[{"id":"deep_passport","name":"Deep passport","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian deep passport: one decision card joining Aave v3, Lido exit and optional ERC-4626 vault reads for an EVM address (~$0.02 USDC Exact on Base). Errors: 400 invalid_address, unsupported_chain or invalid_amount, 402 payment required, failed upstream reads return 200 with status partial/error (unexpected 5xx is not charged). MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","risk","passport","x402"],"inputModes":null,"outputModes":null},{"id":"lido_exit_risk","name":"Lido exit-risk card","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian Lido exit-risk card: stETH/ETH Curve peg, withdrawal-queue ETA and exit liquidity for a stETH amount (~$0.005 USDC Exact on Base). Errors: 400 amount_required or invalid_amount, 402 payment required, failed upstream reads return 200 with status partial/error (unexpected 5xx is not charged). MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","lido","lst","x402"],"inputModes":null,"outputModes":null},{"id":"parameter_drift","name":"Parameter-drift check","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian parameter-drift check: diffs a declared intent against the exact unsigned tx or EIP-712 payload (~$0.005 USDC Exact on Base). Verdict match, drift or cannot_verify. Unknown calldata is cannot_verify, never match. A match is not a guarantee. Errors: 400 invalid_body or unsupported_chain, 402 payment required. MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","tx","drift","x402"],"inputModes":null,"outputModes":null},{"id":"passport_sanctions","name":"Passport + SDN bundle","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian bundle: deep passport plus OFAC SDN exact-match screen for one EVM address (~$0.02 USDC Exact on Base). Informational only. Errors: 400 invalid_address, unsupported_chain or invalid_amount, 402 payment required, failed upstream reads return 200 with status partial/error (unexpected 5xx is not charged). MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["ofac","sdn","passport","x402"],"inputModes":null,"outputModes":null},{"id":"payment_check","name":"USDC payment check","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian payment-check: on-chain read of a Base USDC Exact authorization or Transfer (~$0.005 USDC Exact). Reports nonce used, matching transfers in a ≤120 minute window, and confirmations. Informational. 503 and not settled if every read fails. Never signs or moves funds. Errors: 400 invalid_body, 402 payment required, 503 upstream_unavailable. MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","x402","payment"],"inputModes":null,"outputModes":null},{"id":"risk_passport","name":"Aave v3 risk card","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian Aave v3 risk card for an EVM address: health factor, collateral, debt and liquidation distance (~$0.005 USDC Exact on Base). Errors: 400 invalid_address or unsupported_chain (chain must be base or ethereum), 402 payment required, failed upstream reads return 200 with status partial/error (unexpected 5xx is not charged). MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","risk","aave","x402"],"inputModes":null,"outputModes":null},{"id":"sanctions_batch","name":"OFAC SDN batch screen","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian OFAC SDN batch screen: exact match of 1-50 digital-currency addresses against public SDN Digital Currency Address entries (~$0.10 USDC Exact on Base). Informational only. Errors: 400 invalid_body, invalid_address or unsupported_chain, 402 payment required, unexpected 5xx is not charged. MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["ofac","sdn","batch","x402"],"inputModes":null,"outputModes":null},{"id":"sanctions_screen","name":"OFAC SDN screen","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian OFAC SDN screen: exact match of one digital-currency address against public SDN Digital Currency Address entries (~$0.005 USDC Exact on Base). Informational only. Errors: 400 invalid_address or unsupported_chain, 402 payment required, unexpected 5xx is not charged. MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["ofac","sdn","sanctions","x402"],"inputModes":null,"outputModes":null},{"id":"transaction_simulate","name":"Transaction simulation","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian transaction simulation: dry-run of an unsigned tx against latest Base/Ethereum state (~$0.01 USDC Exact on Base). Returns success or revert, gas, balances, approvals and warnings. A simulation is a point-in-time dry run, not a guarantee. Never signs or moves funds. Errors: 400 invalid_body or unsupported_chain, 402 payment required. MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","tx","simulate","x402"],"inputModes":null,"outputModes":null},{"id":"vault_risk","name":"ERC-4626 vault risk card","description":"Pre-sign check: agents call Meridian before they sign. MioDio Meridian ERC-4626 vault risk card: share price, drawdown, APY lookback and idle cash for one vault (~$0.005 USDC Exact on Base). Errors: 400 invalid_address, unsupported_chain or invalid_amount, 402 payment required, failed upstream reads return 200 with status partial/error (unexpected 5xx is not charged). MioDio x402 DeFi. Terms: https://meridian.miodiollc.com/terms","tags":["defi","erc4626","vault","x402"],"inputModes":null,"outputModes":null}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Meridian"},{"field":"description","before":null,"after":"Pre-sign checks for agents: call Meridian before you sign. mio_dio_defi_risk_passport: a read-only x402 pay-per-call HTTP API. Public on-chain Aave, Lido, ERC-4626 vault, OFAC SDN exact-match, parameter-drift, and transaction-simulation cards. Never holds keys, does not sign, and does not move funds. Not an A2A JSON-RPC task server."},{"field":"version","before":null,"after":"0.8.0"},{"field":"documentationUrl","before":null,"after":"https://meridian.miodiollc.com/docs"},{"field":"supportedInterfaces","before":null,"after":[{"url":"https://meridian.miodiollc.com","protocolBinding":"HTTP+JSON","protocolVersion":"1.0"}]},{"field":"capabilities","before":null,"after":{"streaming":false,"pushNotifications":false,"extendedAgentCard":false,"extensions":[{"uri":"https://meridian.miodiollc.com/.well-known/x402","description":"x402 v2 resource-server catalog (atomic prices, Base USDC, payTo).","required":false},{"uri":"https://meridian.miodiollc.com/openapi.json","description":"OpenAPI 3.1 for paid and free routes.","required":false},{"uri":"https://meridian.miodiollc.com/llms.txt","description":"Plain-text summary for LLM agents.","required":false},{"uri":"https://meridian.miodiollc.com/.well-known/meridian-receipt-keys.json","description":"Ed25519 public keys for verifying Meridian-Receipt headers.","required":false},{"uri":"https://meridian.miodiollc.com/docs","description":"Human-readable HTML docs.","required":false},{"uri":"https://meridian.miodiollc.com/v1/demo/drift","description":"Free parameter-drift demo card (GET /v1/demo/drift).","required":false},{"uri":"https://meridian.miodiollc.com/v1/demo/simulate","description":"Free transaction-simulation demo card (GET /v1/demo/simulate).","required":false}]}},{"field":"provider","before":null,"after":{"organization":"MioDio LLC","url":"https://meridian.miodiollc.com"}}],"other_changed":true,"is_empty":false,"human_summary":"added 10 skills · name ∅ → Meridian · description ∅ → Pre-sign checks for agents: call Meridia · version ∅ → 0.8.0 · documentationUrl ∅ → https://meridian.miodiollc.com/docs · supportedInterfaces ∅ → https://meridian.miodiollc.com (HTTP+JSO · capabilities ∅ → extendedAgentCard, extensions, pushNotif · provider ∅ → MioDio LLC"}},{"captured_at":"2026-11-04T04:35:56.729942","card_hash":"b6a14b84755a10e7d90c21a2cc2455eb55223367b42c302ccf73bd3ffa6791ab","previous_card_hash":null,"diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[],"other_changed":true,"is_empty":false,"human_summary":"internal fields changed"}}]}