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Claude and other LLMs · MCP connector

Ask your LLM what a wallet held.

Connect AsOf once, then ask in plain English: holdings at a period end or right now, supported historical prices, or the block that closed a day. Every scan is quoted before it runs, and the full detail comes as a CSV you can file.

Try it without an account

Explore preloaded wallet reports.

The public demo contains recorded EVM and Solana snapshots at listed dates. It runs no new scans or live price lookups.

Open the demo

To explore these same reports in a compatible remote MCP client, add this public connector without authentication:

https://mcp.asof.xyz/demo/mcp

Your own wallets use the account connector below, with paid access and a quote before new scans.

  1. Step 1

    Create your AsOf account

    Sign up with Google or email. No password needed. You can also do this from your LLM: the first time it connects, it opens the AsOf sign-in page.

  2. Step 2

    Connect AsOf to your LLM

    Add AsOf as a custom connector, using the address below.

    Claude: Customize → Connectors → + → Add custom connector. Name it AsOf, paste the address, continue through the authentication settings, choose automatic client registration when offered, then add it and sign in to AsOf. Enable AsOf under the conversation’s + → Connectors menu before asking a question. Custom connectors work on every Claude plan, including Free (one connector). On Team or Enterprise, an owner must first add AsOf under Organization settings → Connectors; members then connect it from Customize → Connectors. See Claude’s current connector instructions.

    Other LLMs: use a client supporting remote Streamable HTTP MCP and OAuth sign-in. Paste this address in its remote connector settings. Client support varies; contact jono@asof.xyz if authorization does not complete.

    Connector address

    https://mcp.asof.xyz/mcp

  3. Step 3

    Choose a plan

    Scans and price/block lookups need LLM access. Only new scans deduct prepaid scan credits, purchased separately unless your plan includes them. Each scan shows its maximum charge first and needs confirmation unless automatic spending is enabled; results you have already scanned are free to fetch again.

    Your LLM shows a subscribe link the first time it needs one, or you can choose now.

    See plans

  4. Check your first-use readiness

    Account: create or sign in. LLM access: choose a plan. Scan credits: sign in to check.

    After connecting and enabling the tools, ask: “Use AsOf whoami, then list_supported_chains. Tell me whether my account is ready for a holdings scan.” This check does not run a scan or deduct credits. Your exact scan quote checks whether the balance covers its maximum charge.

  5. Step 4

    Add the AsOf skill (recommended)

    A short guide that teaches your LLM to use AsOf well: closing-date versus live snapshots, reusing past results, exporting the CSV instead of rebuilding tables, and reporting gaps honestly.

    Claude (paid plans): turn on code execution in Settings → Capabilities, then Customize → Skills → + → Create skill → Upload a skill, and choose the downloaded zip.

    Other LLMs: paste the plain-text guide into your custom or project instructions.

    Download skill (.zip)Plain-text guideGenerated from the currently deployed AsOf guide.

Then just ask

  • “What did all my wallets hold on 30 June 2026?”
  • “What did 0x… hold on 31 March 2026?”
  • “Fetch my holdings as of the end of last quarter as a CSV.”
  • “What do my wallets hold right now?”
  • “What was Aave worth on 31 December 2025?”
  • “Which Ethereum block was the last one on 31 December 2025?”

Scan supported wallet addresses with paid access; save the ones you check regularly. Exchange-scale wallets are refused rather than scanned partially, and a failed or unscanned chain is always reported as such, never as an empty balance.

AsOf provides data to support accounting and assurance work. It does not perform or guarantee an audit.