How to Connect Claude to Your TSP Account Using Truthifi

Searching for "Claude TSP"? You're in the right place. The Thrift Savings Plan is the backbone of retirement for millions of federal employees and service members — your G, F, C, S, and I fund balances, your Lifecycle (L) fund glidepath, your Traditional and Roth contributions, your agency match, and any TSP loan you carry. Until now, asking "Claude for TSP" meant downloading quarterly statements from tsp.gov, pasting fund balances into Claude, and praying you didn't fat-finger a digit.

Truthifi changes that. With a Claude TSP connection using Truthifi, Claude can see your live TSP fund allocation, account balances, contribution history, Traditional/Roth split, and loan payoff progress through an Anthropic-supported MCP custom connector. Truthifi rebuilds your data on connection: it normalizes fund and contribution records, fills aggregator gaps from the BAA feed, and stitches your contribution and interfund-transfer history into one clean timeline — so Claude reasons about reliable data, not raw statement exports. The connection is read-only, never stores your tsp.gov credentials, and cannot move money or change your allocation.

This guide walks you through setup (about 5 minutes), what Truthifi allows and blocks with your TSP data, and the kinds of long-form Claude analyses that work especially well on federal retirement data.

Before you begin, you'll need:

• A paid individual Claude subscription (Pro or Max). Custom connectors are only available on paid individual plans. Free accounts and some team plans cannot add custom connectors.

• A Truthifi account with at least one linked financial institution.

2. What You Need

• Active TSP account with My Account access at tsp.gov enabled

• Claude Pro plan ($20/mo) — required for custom MCP connectors

• Mandatory two-step authentication enabled on your TSP My Account login

• Free Truthifi account at truthifi.com

• About 5 minutes for first-time setup

• Want to try Perplexity instead? See /connect/perplexity-tsp

3. How to Connect Claude to Your TSP Account

Ready to connect Claude to financial accounts? Here's how to link Claude to your TSP profile using Truthifi.

1. Open Settings in Claude. Go to claude.ai. Click your profile → Settings → Connectors.

2. Add the Truthifi connector. Choose Add custom connector. Enter Name: Truthifi, MCP URL: https://api.truthifi.com/mcp. Click Connect.

3. Authorize your TSP account. Claude redirects you to Truthifi's OAuth screen. Sign in to your Truthifi account, choose Thrift Savings Plan from the institution list, complete the aggregator (BAA) handoff with your tsp.gov My Account credentials and the mandatory two-step passcode, and choose which TSP details (fund balances, contributions, L-fund allocation, Traditional/Roth split, loans) to share with Claude.

4. Enable Truthifi when needed. In any new chat, click + → Integrations → toggle Truthifi on. You may need to re-enable Truthifi in some new conversations if it isn't active by default.

5. Verify the connection. Send: "What is the total balance in my TSP, broken out by fund and by Traditional vs. Roth?" If Claude responds with your actual TSP figures, you're live.

[Connect Claude to TSP →]

Your TSP account is now linked to Claude for live, read-only federal retirement analysis.

4. Example Prompts for Claude

• Fund Allocation Deep Dive — "Pull my current TSP balance and the dollar amount and percentage in each fund — G, F, C, S, and I. Write a structured analysis of my diversification, where I'm concentrated, my effective equity-to-fixed-income split, and whether that split is appropriate for a participant my age and risk tolerance."

• L-Fund Glidepath Comparison — "Compare my current G/F/C/S/I allocation to the glidepath of the L fund closest to my planned retirement date. Write a memo explaining whether I'm taking more or less equity risk than the matching Lifecycle fund, by how much, and what a participant gains or gives up by managing the five funds manually vs. holding the L fund."

• Maximize the Agency Match — "Using my current TSP contribution rate and pay, determine whether I'm capturing the full agency match. If I'm leaving match on the table, calculate the per-paycheck increase needed to get the full match, and explain the long-run cost of under-contributing using a reasonable growth assumption."

• Roth vs. Traditional Framework — "Break down my TSP balance between Traditional and Roth. Build a decision framework for how I should split future contributions, covering current vs. expected retirement tax bracket, the value of tax diversification, and how RMD exposure differs between the two. Use my actual balances."

• TSP Loan Payoff Analysis — "Show my outstanding TSP loan balance, rate, and remaining term. Write a structured comparison of paying the minimum vs. adding $100, $250, and $500 per payroll deduction — total interest paid back to my own account, payoff dates, and the opportunity cost of money not invested while it's loaned out."

• Projected RMD Projection — "Using my Traditional TSP balance and a reasonable growth assumption, project my required minimum distribution in the first year I'll be subject to RMDs and for the following five years. Show the assumptions, the math, and how Roth balances change the picture."

• Rebalance Recommendation — "Analyze how my TSP fund balances have drifted from my target allocation. Identify which funds are overweight and underweight, propose a specific interfund-transfer plan to return to target, and explain the trade-offs. I'll execute the transfer myself in My Account."

• Performance vs. Benchmarks — "Pull the performance of each of my TSP fund holdings and compare to its benchmark — C Fund vs. the S&P 500, S Fund vs. the small-cap index, I Fund vs. the international index, F Fund vs. the bond index, G Fund vs. short-term Treasuries. Write up how my blended return tracked and what drove the gaps."

• Withdrawal & Installment Memo — "Given my total TSP balance and Traditional/Roth split, write a memo on my withdrawal and installment options in retirement. Model a fixed monthly installment vs. a life-expectancy-based installment, show how long the balance could last at each, and flag the tax implications of each path."

• Full Retirement Readiness Memo — "Using my TSP allocation, balance, contribution rate, and Traditional/Roth split, write a 1,500-word retirement readiness memo: where I stand today, whether my allocation and savings rate are on track for my target retirement date, the three highest-impact changes I could make, and the order I should make them in."

5. Why Truthifi?

5.1. Security

Your TSP username and password never touch Truthifi's servers. Authentication occurs through the TSP's aggregator handoff (BAA), creating a read-only, protocol-enforced connection secured with AES-256 encryption. Claude receives only scoped data tokens, never your tsp.gov credentials or two-step passcodes. You maintain complete control and can revoke access anytime from your Truthifi dashboard.

5.2. Privacy

Your financial data stays under your complete control when using Truthifi. We never store login credentials from the Thrift Savings Plan or any institution. You decide which specific TSP details Claude can see, with selective per-data permissions. Data is not sold to third parties, and connecting Claude does not grant access to any other AI you have connected through Truthifi.

5.3. Audit Trail

Every MCP data request is logged for Claude transparency. When Claude accesses your TSP data, the timestamp and specific data retrieved is recorded automatically. You maintain full visibility into which TSP details were accessed and when, with no hidden background queries. Audit logs are available in your Truthifi dashboard.

5.4. Data Quality

The TSP delivers raw account data through its aggregator partner. Fund labels can be inconsistent, contribution-source tags (Traditional, Roth, agency match) can blur together, and timing across pay periods varies. Truthifi rebuilds that history from aggregation sources, normalizes fund and contribution records, and stitches the timing so Claude sees a clean, complete TSP timeline.

6. About Claude

Claude, built by Anthropic, is a conversational AI especially strong at long-form reasoning, careful explanations, and structured writing — all of which map well to federal retirement planning. The Claude Pro plan ($20/mo) is required to use custom MCP connectors, which is what powers the Truthifi integration. (Free Claude accounts cannot add MCP connectors.)

For TSP specifically, Claude is great at multi-step analyses — L-fund glidepath comparisons, Roth-vs-Traditional decision frameworks, retirement readiness memos. Claude tends to ask clarifying questions, show its work, and produce well-organized output, which suits the kind of long-horizon, tax-aware decisions TSP participants face.

7. About the Thrift Savings Plan

The Thrift Savings Plan (TSP) is the federal government's defined-contribution retirement plan for current and former civilian employees and members of the uniformed services. Established by the Federal Employees' Retirement System Act of 1986 and administered by the Federal Retirement Thrift Investment Board (FRTIB) in Washington, DC, the TSP works like a 401(k) for federal workers — participants contribute a portion of their pay, often with agency matching, and invest across a small menu of low-cost index funds or age-based Lifecycle funds.

The plan crossed $1 trillion in assets in mid-2025 and now serves more than 7.2 million accounts, including nearly 195,000 TSP millionaires. Participants choose among the G, F, C, S, and I funds or an L (Lifecycle) target-date fund, and use My Account at tsp.gov to set contribution allocations, perform interfund transfers, and manage Traditional or Roth balances toward retirement. In 2025 the L 2025 fund was retired (investors rolled into L Income) and a new L 2075 fund was launched for participants roughly 50 years from retirement.

• Administrator: Federal Retirement Thrift Investment Board (FRTIB)

• Headquarters: Washington, DC

• Founded: 1986 (Federal Employees' Retirement System Act)

• Plan assets: Over $1 trillion (crossed $1 trillion mid-2025)

• Accounts: More than 7.2 million participants, including nearly 195,000 TSP millionaires

• Authentication: Username/password + mandatory two-step authentication via tsp.gov

• Data aggregators: BAA

• Supported fund/account types: G, F, C, S, and I Funds; L (Lifecycle) Funds (L Income, L 2030–L 2075); Traditional (pre-tax) and Roth (after-tax) contributions; TSP loans and withdrawals; Mutual Fund Window

TSP website → · About the TSP →

8. Frequently Asked Questions

Is it safe to connect my TSP account using Truthifi?

Yes. Your tsp.gov login happens on the TSP's own authentication screen through the aggregator handoff (BAA). Your username, password, and two-step passcodes never pass through Truthifi's servers. Claude receives only a scoped, read-only data token — it cannot move money, perform an interfund transfer, change your allocation, or alter any TSP setting. Every data request is logged, and you can revoke access from your Truthifi dashboard at any time. Full details at https://truthifi.com/security.

Truthifi security overview →

What can Truthifi actually do with my TSP data?

Truthifi pulls balances, fund allocation, contribution and transaction history, Traditional/Roth split, and loan details from your TSP account and exposes them to Claude through a read-only MCP connector. Claude can analyze your G/F/C/S/I allocation, compare it to an L-fund glidepath, model your projected RMD, write a Roth-vs-Traditional framework, and produce structured retirement memos. It cannot move money or change TSP account settings.

Do I need a paid Claude plan to use this with TSP?

Yes. To use Claude with Truthifi, you need a Claude Pro subscription at $20/mo or higher. Custom MCP connectors — the mechanism Truthifi uses — are gated to paid Claude plans. Free Claude accounts cannot add the TSP integration.

Where is my TSP data stored?

Your balance and transaction data is fetched on demand from the TSP aggregator feed via Truthifi, used during the active Claude conversation, and not retained in Claude memory between sessions. Truthifi caches a normalized history so Claude has consistent context, and you can clear it from your dashboard at any time.

How do I disconnect Claude from Truthifi?

To disconnect Claude from Truthifi, open Settings → Connectors → find Truthifi → Disconnect. You can also revoke access by removing the TSP institution entirely from your Truthifi dashboard. Disconnecting Claude does not affect any other AI you have connected through Truthifi.

How does Truthifi compare to other options for TSP?

What about my financial advisor?

Claude does not replace your financial advisor. Your advisor is responsible for licensed guidance, money movement, and tax/estate strategy. Claude — with read-only TSP data using Truthifi — helps you prepare for advisor meetings, ask better questions, and understand your fund allocation and savings rate in between reviews.

What TSP fund and account types does Truthifi support?

Truthifi supports the G, F, C, S, and I Funds; the L (Lifecycle) Funds from L Income through L 2075; Traditional (pre-tax) and Roth (after-tax) balances; TSP loans and withdrawals; and the Mutual Fund Window, when they appear in the aggregator feed. You can pick which subset to share with Claude.

Can Claude write a full retirement readiness memo using my TSP data?

Yes — and this is one of Claude's strengths. Claude can pull your allocation, balance, contribution rate, and Traditional/Roth split and produce a structured memo with sections on where you stand, whether you're on track for your target retirement date, your highest-impact changes, and the order to make them. Many participants run this once a year.

Can Claude compare my five-fund allocation to an L fund for me?

Yes. Claude can compare your manual G/F/C/S/I allocation to the glidepath of the L fund nearest your retirement date, quantify the difference in equity exposure, and explain the trade-offs of managing the funds yourself vs. holding the matching Lifecycle fund. It surfaces the data so you can decide.

Can I connect both Claude and ChatGPT to my TSP account?

Yes. Each AI connection using Truthifi is independent. Connecting Claude does not expose your TSP data to ChatGPT, and vice versa. You can revoke either at any time without affecting the other.

Does this replace My Account at tsp.gov?

No. My Account remains the right tool for changing allocations, performing interfund transfers, adjusting contributions, and requesting withdrawals. Claude + Truthifi is for analysis, writing, and decision support.

How is Claude different from ChatGPT for TSP analysis?

Claude tends to write longer, more structured analysis and is more willing to show its assumptions and edge cases. ChatGPT tends to be faster and more conversational. Many users keep both connected: ChatGPT for quick lookups ("what's my balance?"), Claude for deeper work ("write me a memo on my Roth-vs-Traditional split").

Can Claude help with my TSP loan decisions?

Yes. Claude can pull your TSP loan balance, rate, and remaining term, then run structured scenarios — accelerated payoff, opportunity cost of money not invested while loaned out, and the effect of extra payroll deductions — and explain the assumptions behind each. It does not change your loan; you do that in My Account.

Is there a Free Claude path for this?

No. Custom MCP connectors are gated to Claude Pro ($20/mo) or higher. If cost is a blocker, Truthifi also supports free or lower-cost AI clients (including OpenClaw), which you can use instead or alongside.

Who can see my TSP data?

Only you, and only Claude during an active conversation where Truthifi tools are enabled. Truthifi does not sell data, does not earn commissions on TSP funds, and does not share your data with advertisers. The TSP itself only sees the aggregator's read traffic.

Subject to Claude privacy policy.

Can Claude help with tax planning using my TSP data?

Claude can surface TSP-related data relevant to tax planning — your Traditional vs. Roth split, the tax treatment of future distributions, and projected RMD timing on your Traditional balance. It is not a tax advisor. Use its output as a prep tool, not as filing advice.

Can Claude estimate my projected RMD from my Traditional TSP balance?

Yes. If your Traditional balance appears in the aggregator feed, Claude can project your required minimum distribution for the first RMD year and beyond, show the assumptions, and explain how Roth balances and withdrawal timing change the result. It cannot initiate distributions — you do that in My Account.

9. MCP Integration Paths

MCP (Model Context Protocol) is the open standard that lets Claude talk to external data sources through a structured, read-only interface. Anthropic, the company behind Claude, co-developed MCP, so Claude is one of the most natural homes for an MCP-based retirement connector. When you connect Claude to your TSP using Truthifi, you are using a Truthifi MCP server — infrastructure that translates Claude's natural-language requests into safe, scoped MCP API calls against your live TSP data.

Truthifi runs MCP servers across finance: MCP banking, MCP investment, MCP brokerage, MCP crypto. Each connector is read-only, protocol-enforced, and audit-logged. For the TSP, the MCP investment integration covers your G, F, C, S, and I funds, your L (Lifecycle) funds, Traditional and Roth balances, and TSP loans.

For developers, Truthifi's MCP API is documented for custom MCP integration work — building dashboards, internal tools, or routing TSP data into other MCP-aware clients. The same security model applies: no credentials, read-only scopes, full audit trail. A defined-contribution plan like the TSP (with index funds and Lifecycle glidepaths) is a particularly good real-world test of any MCP investment stack.

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• 🌐 AI in Finance: The Big Picture — Generative AI finance and AI applications in financial services.

• ChatGPT + TSP guide

• Perplexity + TSP guide

• Grok + TSP guide

• OpenClaw + TSP guide

Informational only. Not financial advice. Consult a qualified financial advisor before making investment decisions. Truthifi is an independent platform and is not affiliated with the Thrift Savings Plan or the Federal Retirement Thrift Investment Board. This guide reflects current product functionality as of June 2026.

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Title: Claude TSP — Connect Using Truthifi | AI Federal Retirement Analysis Meta Description: Connect Claude to your TSP account using Truthifi. Live fund balances, L-fund glidepath, Roth-vs-Traditional memos, read-only MCP connector. Setup takes 5 minutes. H1: How to Connect Claude to Your TSP Account Using Truthifi Canonical URL: https://truthifi.com/connect/claude-tsp