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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

Agent.chain.tokyo Address Contracts

Rent a real Japan mailing address for an AI agent via MCP + Solana USDC x402.

Checks passed
11 / 22

3 failed · 8 not measured

Median response
1378 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
9

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
220
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 1378 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name Agent.chain.tokyo.

  • Pass
    Lists tools

    tools/list returned 9 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 1378 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 1378 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    0 of 14 parameters have a description (0%). The bar is 80%.

  • Fail
    Safety hints

    5 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-28T09:57:27.82914Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Agent.chain.tokyo Address Contracts

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http agent-chain-tokyo-address-contracts https://mainnet.agent.chain.tokyo/mcp

Capabilities

Tools 9

create_payment_intent

Reserve one Location floor for the authenticated owner and create a fixed 55 USDC native-USDC x402 exact Payment Intent.

Discovered
create_wallet_handoff

Create a short-lived owner login link for an existing 55 USDC Intent. Show the URL to the owner; wait for their Phantom wallet connection before preparing. Never request a token or private key. Do not automatically retry.

Discovered
get_floor_availability

Check a virtual floor for the authenticated owner without disclosing another owner's identity.

Discovered
get_wallet_payment_status

Read server-recorded settlement evidence for this handoff without sending, observing the chain or repairing a payment. settlement_recorded is historical evidence, not proof of currently active service. Unknown/review results require operator review. Never resend automatically.

Discovered
list_contracts

List the authenticated owner's contracts. Only current active paid contracts with valid assent include their snapshotted mailbox address. Private forwarding destinations are omitted.

Discovered
list_events

Read the authenticated owner's durable event Inbox after an optional cursor.

Discovered
list_locations

List safe Location summaries and virtual floor ranges using the connected Google OAuth account. Exact addresses are never included in this catalog.

Discovered
prepare_wallet_signature

After the owner connects Phantom, prepare the immutable transaction for this handoff. Then ask the owner to review and sign in the existing owner page. This does not sign or send. Do not automatically retry or request a replacement after expiry.

Discovered
submit_wallet_payment

Only after the owner explicitly signs the 55 USDC payment in Phantom, submit the server-saved proof once. Acknowledgement is not settlement. Always follow with get_wallet_payment_status; never automatically retry submission, including after a timeout.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected1378 ms9