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Agent.chain.tokyo Address Contracts

R0· no sign-in

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

v1.0.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality86good
Trust83of 100
Uptime, 30 days100%
Latency p50676 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "address-contracts": {
      "type": "http",
      "url": "https://mainnet.agent.chain.tokyo/mcp"
    }
  }
}
claude mcp add --transport http address-contracts https://mainnet.agent.chain.tokyo/mcp
[mcp_servers.address-contracts]
url = "https://mainnet.agent.chain.tokyo/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "address-contracts": {
      "type": "remote",
      "url": "https://mainnet.agent.chain.tokyo/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "address-contracts": {
      "type": "http",
      "url": "https://mainnet.agent.chain.tokyo/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=address-contracts&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWFpbm5ldC5hZ2VudC5jaGFpbi50b2t5by9tY3AifQ%3D%3D"
}
{
  "servers": {
    "address-contracts": {
      "type": "http",
      "url": "https://mainnet.agent.chain.tokyo/mcp"
    }
  }
}
{
  "mcpServers": {
    "address-contracts": {
      "httpUrl": "https://mainnet.agent.chain.tokyo/mcp"
    }
  }
}
extensions:
  "address-contracts":
    enabled: true
    name: "address-contracts"
    type: streamable_http
    uri: "https://mainnet.agent.chain.tokyo/mcp"
    timeout: 300

Quality 86 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene88 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • warn
    tools.annotationsonly 4 of 9 tools declare readOnlyHint or destructiveHint
  • warn
    tools.directory_hints4 of 9 tools declare all four hints; missing: list_locations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_floor_availability (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_events (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
  • pass
    tools.token_costabout 947 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
  • pass
    tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
  • pass
    stability.new_linksno tool change named a new site
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

9 tools, about 947 tokens to load them all · tool set fae497634330 · checked 2026-11-14 07:03 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-17d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mainnet.agent.chain.tokyo/mcp streamable-httpnoneyes100%676 ms2025-11-252026-11-14

Tools (9)

create_payment_intentReserve one Location floor for the authenticated owner and create a fixed 55 USDC native-USDC x402 exact Payment Intent.
create_wallet_handoffdestructiveCreate 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.
get_floor_availabilityCheck a virtual floor for the authenticated owner without disclosing another owner's identity.
get_wallet_payment_statusread-onlyRead 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.
list_contractsList the authenticated owner's contracts. Only current active paid contracts with valid assent include their snapshotted mailbox address. Private forwarding destinations are omitted.
list_eventsRead the authenticated owner's durable event Inbox after an optional cursor.
list_locationsList safe Location summaries and virtual floor ranges using the connected Google OAuth account. Exact addresses are never included in this catalog.
prepare_wallet_signaturedestructiveAfter 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.
submit_wallet_paymentdestructiveOnly 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.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "tokyo.chain.agent/address-contracts",
  "title": "Agent.chain.tokyo Address Contracts",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mainnet.agent.chain.tokyo/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://agent.chain.tokyo/",
  "description": "Rent a real Japan mailing address for an AI agent via MCP + Solana USDC x402."
}