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Public Agent Card

Meridian

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedUnsigned card

About this agent

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.

LocalMark's observation

LocalMark first listed this public Agent Card on 17 Oct 2026, 18:21 UTC. Its latest card check succeeded. The card declares 10 skills and a HTTP+JSON interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 04 Nov 2026, 09:53 UTC.

  • Latest card check: passed

    04 Nov 2026, 09:53 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    04 Nov 2026, 09:53 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    04 Nov 2026, 09:53 UTC · Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 04 Nov 2026, 09:53 UTC.

  • 30-day card check history

    136 of 136 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.

Advertised connection checks

The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.

  • HTTP+JSON · 1.0 · Selected connection

    https://meridian.miodiollc.com

    A2A response not confirmed · 04 Nov 2026, 09:53 UTC

    Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support

Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.

Repair connection or request a recheck →

Publisher-authorized synthetic tests

Publisher: set up test evidence →

No current fixture result · Not yet checked

A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.

Consent: not confirmed.

Recent fixture observations
  • No fixture tests recorded.

Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →

Also published at

These addresses publish the same named agent from this publisher. LocalMark keeps one directory profile.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 12 recent checks
  • Passed · 04 Nov 2026, 09:53 UTC

    Agent Card validated

  • Passed · 04 Nov 2026, 01:16 UTC

    Agent Card validated

  • Passed · 03 Nov 2026, 13:15 UTC

    Agent Card validated

  • Passed · 03 Nov 2026, 07:13 UTC

    Agent Card validated

  • Passed · 03 Nov 2026, 01:13 UTC

    Agent Card validated

  • Passed · 02 Nov 2026, 13:12 UTC

    Agent Card validated

  • Passed · 02 Nov 2026, 01:11 UTC

    Agent Card validated

  • Passed · 01 Nov 2026, 13:10 UTC

    Agent Card validated

  • Passed · 01 Nov 2026, 01:09 UTC

    Agent Card validated

  • Passed · 31 Oct 2026, 13:08 UTC

    Agent Card validated

  • Passed · 31 Oct 2026, 01:07 UTC

    Agent Card validated

  • Passed · 30 Oct 2026, 13:06 UTC

    Agent Card validated

View the 30-day check log as JSON →

Card and signature changes

  • Card changed

    03 Nov 2026, 13:15 UTC · Confirmed published card change: description, advertised_endpoints, skills_updated, other_card_fields; fingerprint fe6129e10d16

  • Card changed

    21 Oct 2026, 20:18 UTC · Confirmed published card change: skills_added, other_card_fields; fingerprint bd4a2c178d44

  • Card changed

    17 Oct 2026, 22:28 UTC · Confirmed published card change: description, skills_added, skills_updated, other_card_fields; fingerprint 08ab80862cee

View detailed card versions → · Subscribe to card changes

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Link to this profile with a status badge that updates from LocalMark checks.

LocalMark status badge

README Markdown:

[![LocalMark status](https://localmark.ai/badge/541907.svg)](https://localmark.ai/agents/541907)

Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

  • No card-declared connections recorded yet.

View all connections as JSON →

Declared skills 10

  • Aave v3 risk card

    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

    defiriskaavex402
  • Deep passport

    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

    defiriskpassportx402
  • ERC-4626 vault risk card

    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

    defierc4626vaultx402
  • Lido exit-risk card

    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

    defilidolstx402
  • OFAC SDN batch screen

    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

    ofacsdnbatchx402
  • OFAC SDN screen

    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

    ofacsdnsanctionsx402
  • Parameter-drift check

    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

    defitxdriftx402
  • Passport + SDN bundle

    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

    ofacsdnpassportx402
  • Show all 2 remaining skills
    • Transaction simulation

      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

      defitxsimulatex402
    • USDC payment check

      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

      defix402payment