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Our x402 Integration Is Live: Pay-Per-Call Access to Token Metrics—No API Key Required

Use your crypto wallet to call Token Metrics endpoints on demand. Pay per call with USDC or get a 10% discount with TMAI. No monthly subscriptions, no API keys, just headers and code.
Token Metrics Team
7 min read
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Developers are already shipping with x402 at scale: 450,000+ weekly transactions, 700+ projects. This momentum is why our Token Metrics x402 integration matters for agents and apps that need real crypto intelligence on demand. You can now pay per API call using HTTP 402 and the x-coinbase-402 header, no API key required.

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Summary: Pay per API call to Token Metrics with x402 on Base using USDC or TMAI, set x-coinbase-402: true, and get instant access to trading signals, grades, and AI reports.

Check out the x402 ecosystem on Coingecko.

  

What You Get

Token Metrics now supports x402, the HTTP-native payment protocol from Coinbase. Users can call any public endpoint by paying per request with a wallet, eliminating API key management and upfront subscriptions. This makes Token Metrics data instantly accessible to AI agents, researchers, and developers who want on-demand crypto intelligence.

x402 enables truly flexible access where you pay only for what you use, with transparent per-call pricing in USDC or TMAI. The integration is live now across all Token Metrics public endpoints, from trading signals to AI reports. Here's everything you need to start calling Token Metrics with x402 today.

Quick Start

Get started with x402 + Token Metrics in three steps.

  1. Create a wallet client: Follow the x402 Quickstart for Buyers to set up a wallet client (Node.js with viem or Python with eth-account). Link: https://docs.cdp.coinbase.com/x402/docs/quickstart-buyers
  2. Set required headers: Add x-coinbase-402: true to any Token Metrics request. Optionally set x-payment-token: tmai for a 10% discount (defaults to usdc). Do not send x-api-key when using x402.
  3. Call any endpoint: Make a request to https://api.tokenmetrics.com/v2/[endpoint] with your wallet client. Payment happens automatically via x402 settlement.

That is it. Your wallet pays per call, and you get instant access to Token Metrics data with no subscription overhead.

Required Headers

  

Endpoint Pricing

Transparent per-call pricing across all Token Metrics public endpoints. Pay in USDC or get 10% off with TMAI.

  

  

  

  

All prices are per single call. Paying with TMAI automatically applies a 10% discount.

Try It on x402 Composer

If you want to see x402 + Token Metrics in action without writing code, head to x402 Composer. Composer is x402scan's playground for AI agents that pay per tool call. You can open a Token Metrics agent, chat with it, and watch real tool calls and USDC/TMAI settlements stream into the live Feed.

Composer surfaces active agents using Token Metrics endpoints like trading signals, price predictions, and AI reports. It is a great way to explore what is possible before you build your own integration. Link: https://x402scan.com/composer

Why x402 Changes the Game

Traditional API access requires upfront subscriptions, fixed rate limits, and key management overhead. x402 flips that model by letting you pay per call with a crypto wallet, with no API keys or monthly commitments. This is especially powerful for AI agents, which need flexible, on-demand access to external data without human intervention.

For Token Metrics, x402 unlocks agentic commerce where agents can autonomously pull crypto intelligence, pay only for what they use, and compose our endpoints with other x402-enabled tools like Heurist Mesh, Tavily, and Firecrawl. It is HTTP-native payments meeting real-world agent workflows.

What is x402?

x402 is an open-source HTTP-native payment protocol developed by Coinbase. It uses the HTTP 402 status code (Payment Required) to enable pay-per-request access to APIs and services. When you make a request with the x-coinbase-402 header, the server returns a payment challenge, your wallet signs and submits payment, and the server fulfills the request once settlement is verified.

The protocol runs on Base and Solana, with USDC and TMAI as the primary payment tokens. x402 is designed for composability, agents can chain multiple paid calls across different providers in a single workflow, paying each service directly without intermediaries. Learn more at the x402 Quickstart for Buyers: https://docs.cdp.coinbase.com/x402/docs/quickstart-buyers

FAQs

Do I need an API key to use x402 with Token Metrics?

No. When you set x-coinbase-402: true, your wallet signature replaces API key authentication. Do not send x-api-key in your requests.

Can I use x402 with a free trial or test wallet?

Yes, but you will need testnet USDC or TMAI on Base Sepolia (testnet) for development. Production calls require mainnet tokens.

How do I see my payment history?

Check x402scan for transaction logs and tool call history. Your wallet will also show outgoing USDC/TMAI transactions. Visit https://www.x402scan.com.

What happens if my wallet balance is too low?

The x402 client will return a payment failure before making the API call. Top up your wallet and retry.

Can I use x402 in production apps?

Yes. x402 is live on Base mainnet. Set appropriate spend limits and handle payment errors gracefully in your code.

Next Steps

Disclosure

Educational and informational purposes only. x402 involves crypto payments on public blockchains. Understand the risks, manage your wallet security, and test thoroughly before production use. Token Metrics does not provide financial advice.

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Token Metrics: AI-powered crypto research and ratings platform. We help investors make smarter decisions with unbiased Token Metrics Ratings, on-chain analytics, and editor-curated “Top 10” guides. Our platform distills thousands of data points into clear scores, trends, and alerts you can act on.
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Token Metrics Team
Token Metrics Team

Recent Posts

Crypto Basics

How Does a Crypto Index Work? A Deep Dive Into Crypto Index Mechanics

Token Metrics Team
8 min

Crypto investing can be overwhelming. With thousands of tokens to choose from, rapidly shifting narratives, and volatile price swings, even seasoned investors struggle to build and manage a balanced portfolio. That’s why crypto indices have become increasingly popular in 2025.

But how exactly does a crypto index work?

In this article, we’ll break down the mechanics of how crypto indices function, from token selection and weighting to rebalancing and performance tracking. By the end, you’ll understand how these powerful tools simplify crypto investing—and how you can take full advantage of them.

What Is a Crypto Index?

A crypto index is a structured portfolio of cryptocurrencies grouped together based on a common methodology. It represents a specific part of the market—such as the top 10 coins by market cap, the leading DeFi protocols, or trending tokens in a sector like AI or gaming.

Just like the S&P 500 tracks the performance of top U.S. companies, a crypto index tracks the collective performance of selected tokens.

The Core Mechanics of a Crypto Index

Let’s explore how a typical crypto index operates step-by-step:

1. Token Selection

Every index starts with a set of criteria to determine which cryptocurrencies will be included.

Common selection methods:

  • Market Capitalization – Include top 10, 25, or 100 coins
  • Sector/Narrative – Select tokens from specific categories (DeFi, AI, L1s, Memecoins)
  • Performance Metrics – Tokens with consistent returns or volume
  • Community/Governance Votes – Used in DAO-driven indices (e.g., Index Coop)

The goal is to select a diversified set of tokens that represents the chosen segment of the market.

2. Weighting Strategy

Once tokens are selected, the index must decide how much of each token to include.

Popular weighting strategies:

  • Market Cap Weighted – Bigger tokens (like BTC, ETH) get more weight
  • Equal Weighted – Every token gets the same allocation
  • Risk Weighted – Based on volatility or Sharpe ratio
  • AI Weighted – Dynamic allocation based on algorithmic signals

Weighting determines how performance from each token impacts the overall index return.

3. Rebalancing Schedule

Markets are always changing. Rebalancing is the process of adjusting the portfolio to maintain the target weights and remove underperforming assets.

Rebalancing frequencies:

  • Quarterly: Traditional for passive indices
  • Monthly: Common for thematic indices
  • Weekly or Dynamic: Used in AI-powered or high-volatility strategies

Example:
If a memecoin in your index pumps and takes up 60% of the portfolio, rebalancing brings it back down to its intended 20%—locking in gains and reducing risk.

4. Performance Calculation

An index’s value is calculated based on the performance of its underlying assets and their respective weights.

The formula is similar to a weighted average return. For tokenized indices, the value is often represented as an Index Token Price.

Performance is typically measured:

  • Daily
  • Weekly
  • Monthly
  • Since Inception

Investors track these returns to compare index performance against benchmarks like Bitcoin or Ethereum.

5. Execution & Access

To invest in an index, you typically:

  • Deposit funds (USDC, ETH, BTC, fiat)
  • Receive exposure to the entire portfolio through a single transaction
  • Monitor performance through a platform dashboard

Some platforms issue tokenized representations (ERC-20 index tokens), while others manage indices off-chain.

Example: How an AI Crypto Index Works

Let’s look at an AI-powered index on Token Metrics called the AI Tokens Index.

Workflow:

  1. Every week, the platform analyzes 80+ data points for each AI token (e.g., FET, AGIX, TAO).
  2. The AI assigns a bullish, neutral, or bearish signal to each token.
  3. The index allocates capital to bullish tokens, exits bearish ones, and shifts to stablecoins when needed.
  4. Investors automatically benefit from this reallocation without lifting a finger.

Outcome: Better risk-adjusted performance in volatile markets compared to static, passive indices.

Types of Crypto Indices by How They Work

Key Components Behind the Scenes

🔧 Data Infrastructure

Accurate pricing, volume, volatility, and liquidity data are critical for proper index functioning.

🔄 Smart Contracts (for on-chain indices)

Manage token weights, execute trades, and handle rebalancing autonomously.

🧠 Algorithmic Logic

For AI or technical indices, algorithms analyze trends, patterns, and market signals to inform decisions.

Benefits of Index Mechanics for Investors

  • Transparency: You can see exactly how and why tokens are selected and weighted.
  • Automation: No need to manually rebalance or research token fundamentals.
  • Risk Reduction: Dynamic weightings can reduce exposure to underperforming tokens.
  • Narrative Exposure: Stay aligned with top-performing crypto sectors and trends.

Are Crypto Indices Passive or Active?

Both exist.

  • Passive indices use fixed rules and rebalance on a schedule.
  • Active indices (especially AI-powered) make decisions based on real-time market conditions.

In 2025, hybrid indices—that blend passive structure with active rebalancing—are becoming more popular.

Final Thoughts: Why It Matters How a Crypto Index Works

Understanding how a crypto index works helps you make better investment decisions. You’ll know:

  • What’s driving performance
  • When and why your portfolio is rebalanced
  • How to evaluate different indices for your goals

Crypto indices aren’t just simplified baskets—they are dynamic, data-driven tools that reflect the market in motion. Whether you choose a passive index or an AI-powered one, understanding the mechanics ensures you’re investing with clarity—not blind trust.

For smarter, automated exposure to the crypto market, consider using platforms like Token Metrics, which offer both passive HODL indices and advanced AI indices that rebalance weekly based on real market signals.

Research

What Is a Bitcoin Index Fund? | Token Metrics Index Fund Explained

Token Metrics Team
8 min

What Is a Bitcoin Index Fund?

A Bitcoin index fund is a financial product designed to provide investors with exposure to Bitcoin—and often other leading cryptocurrencies—through a single, diversified investment. Much like a traditional stock market index fund (like the S&P 500), a Bitcoin index fund tracks a basket of top crypto assets, eliminating the need to buy and manage each one individually.

The purpose of a Bitcoin index fund is simple: make crypto investing easier, safer, and more diversified. Rather than picking individual tokens, investors buy shares in the fund, which automatically rebalances according to predefined rules—usually based on market capitalization.

If you're looking for the best index fund in the crypto space in 2025, platforms like Token Metrics offer a new generation of AI-powered index products that provide dynamic exposure to Bitcoin and other high-performing digital assets.

Why Do Investors Use Bitcoin Index Funds?

Index funds are a staple of traditional finance because they offer:

  • Diversification
  • Risk reduction
  • Simplicity
  • Passive exposure
  • Lower volatility compared to single-asset bets

A bitcoin index fund brings those same benefits to the crypto world—especially important given the volatility and complexity of managing a portfolio of digital assets.

How Does a Bitcoin Index Fund Work?

At its core, a Bitcoin index fund holds a weighted basket of the top cryptocurrencies, with Bitcoin often as the dominant component. Most funds:

  • Track the top 10–20 tokens by market cap
  • Weight each asset based on size or performance
  • Screen for risks (e.g., smart contract audits, liquidity thresholds)
  • Rebalance monthly or quarterly
  • Allow trading via ticker symbols on brokerage platforms

For example, a fund like BITW (Bitwise 10 Crypto Index Fund) allows retail and institutional investors to buy crypto exposure directly in their brokerage account, with professional custody, reporting, and risk management.

Introducing the Token Metrics Index Fund Platform

While traditional crypto index funds trade on brokerage platforms, Token Metrics offers a crypto-native index fund experience—built for on-chain participation with AI-powered asset selection and risk screening.

The Token Metrics Index Fund is:

  • 🔐 Secure: Uses smart contract audits and red flag detection to screen assets
  • 🤖 AI-driven: Selects and weights assets based on Trader/Investor Grades, sentiment, and on-chain data
  • 📊 Diversified: Offers sector-specific and global index options
  • 🔁 Automated: Rebalances portfolios monthly or based on AI signals
  • 🪙 Self-custodial: You trade directly on-chain while maintaining ownership of your crypto

You can trade on Token Metrics Index Funds directly through the platform, making it the most innovative and flexible solution for modern investors.

Token Metrics Index Fund: What Makes It Different?

Unlike static index funds, the Token Metrics Index platform uses machine learning and real-time analytics to optimize portfolio composition. Every fund is:

🧠 AI-Driven

Token Metrics assigns Trader and Investor Grades (0–100) to thousands of cryptocurrencies based on technical, fundamental, and sentiment analysis. The highest-graded tokens make it into the index.

💡 Theme-Based

Choose from sector-focused indices like:

  • DeFi
  • AI & Big Data
  • Memecoins
  • Infrastructure
  • Real-World Assets (RWA)

This allows investors to tailor exposure based on macro trends or investment theses.

🔁 Dynamic Rebalancing

Indices are rebalanced automatically when key signals trigger:

  • AI rating changes
  • Bullish/Bearish signals
  • Market cap shifts
  • Sector rotations

This allows you to stay ahead of the market without micromanaging your portfolio.

Benefits of Trading on Token Metrics Index Fund

✅ Smart Diversification

Gain exposure to Bitcoin and other top assets like Ethereum, Solana, Chainlink, and more—without choosing them manually.

✅ Reduced Risk

Built-in risk scoring flags tokens with audit failures, low liquidity, or suspicious on-chain behavior—keeping your exposure clean.

✅ Data-Driven Allocation

Forget guessing. Each asset’s weight is optimized using over 80+ data signals, including social sentiment, tokenomics, whale activity, and developer metrics.

✅ On-Chain Trading

Retain custody of your crypto. Token Metrics doesn’t hold your assets—you do. You execute trades directly through your self-custodial wallet.

Bitcoin Index Fund vs. Token Metrics Index Fund

How to Trade on Token Metrics Index Fund

Getting started is simple:

  1. 🔗 Visit Token Metrics Indices
  2. 🪙 Choose your preferred index (e.g., Bitcoin + Top Alts)
  3. 📊 View current allocations and performance
  4. 🧠 Connect your wallet - (Coming Very Soon!)
  5. ✅ Execute the trade directly, self-custodially

You can also set up alerts to track when the index rebalances or when new tokens enter/exit the fund.

Is a Bitcoin Index Fund Right for You?

If you’re:

  • New to crypto and want diversified exposure
  • An experienced investor looking to de-risk
  • Bullish on Bitcoin but want to capture altcoin upside
  • Interested in passive investing with AI optimization

…then a Bitcoin index fund—and specifically the Token Metrics Index Fund—is one of the best index fund strategies to consider in 2025.

Final Thoughts

Crypto is evolving—and so are the tools to invest in it. The days of chasing charts and trying to time every trade are giving way to smarter, more data-driven investing.

Whether you’re managing your first portfolio or optimizing institutional exposure, the Token Metrics Index Fund offers a secure, automated, AI-powered path to diversify into Bitcoin and top-performing crypto assets.

By combining quant-grade analysis with intuitive, on-chain execution, Token Metrics makes it easier than ever to trade on a crypto index fund that works for you—not against you.

Invest smart. Diversify with AI. Trade with confidence on Token Metrics.

🔗 Explore Token Metrics Index Funds
🔗 Start your 7-day free trial
🔗 Access AI research and alerts

Research

Tracking Bitcoin’s Rise as a Macro Hedge with Token Metrics – The #1 Crypto Analytics Platform in 2025

Token Metrics Team
8 min

Bitcoin’s Role in a Shifting Global Financial Order

Bitcoin's relevance in global finance continues to evolve. In 2025, this evolution is accelerating as geopolitical tensions and economic uncertainties challenge traditional systems. While Bitcoin was once viewed as a fringe digital asset, it is increasingly being positioned as a strategic hedge—one that could play a central role in a future where fiat currencies, particularly reserve currencies, face structural strain.

This blog explores how current global dynamics are elevating Bitcoin’s role, not as a speculative trade, but as a macroeconomic signal.

Rising Geopolitical Tensions

Recent developments in the Middle East have drawn increased attention to the intersection of geopolitics and financial markets. Conflicts involving Iran, Israel, and broader regional tensions are no longer localized issues—they have global implications, especially when supply chains and energy flows are involved.

A scenario some analysts are exploring is a prolonged conflict that could last several years. If oil exports are disrupted, global inflation could spike. History tells us that war economies tend to create volatility, both in commodity markets and in currencies.

In such environments, hard assets often perform well. Gold has traditionally filled that role. But Bitcoin, with its fixed supply and decentralized infrastructure, is increasingly being viewed in a similar light.

Game Theory and the Incentive to Escalate

Several geopolitical analysts have recently applied game theory to understand current alignments. The thesis: multiple nations involved in ongoing conflicts have internal and external incentives that make prolonged conflict more likely than resolution.

From a market perspective, that introduces risk into the global economy—risk that can erode trust in fiat systems or centralized monetary authorities.

Bitcoin, by design, offers an alternative. It operates on a predictable schedule, outside the reach of any single government or bank. In times of instability, that predictability becomes an asset in itself.

Flight to Bitcoin in a Crisis?

The concept of a “flight to safety” is typically associated with sovereign bonds or gold. However, during recent events, Bitcoin has at times rallied when traditional risk assets fell—especially when the conflict narrative intersects with economic concerns.

In the event of a long-term geopolitical crisis, particularly one affecting the global reserve currency system, Bitcoin could see a significant re-rating. The logic is simple: a decentralized, non-sovereign asset becomes a hedge against sovereign instability.

This doesn’t mean Bitcoin is without risk—it remains volatile and speculative compared to traditional assets. But in extreme scenarios, such as currency devaluation or prolonged stagflation, Bitcoin’s use case as a financial escape valve becomes more compelling.

Bitcoin vs. the US Dollar

Some strategists now openly discuss the possibility that the dollar’s dominance may be structurally weakened in the years ahead. That doesn’t imply imminent collapse, but it does suggest the global financial order may be recalibrating.

Central bank digital currencies (CBDCs), the rise of alternative payment networks, and multipolar geopolitical tensions all point toward a future where reserve status is contested.

Bitcoin, by virtue of being neutral, borderless, and digitally native, offers a counterweight. While it’s unlikely to “replace” fiat in the near term, its role as a counter-reserve asset may expand.

Institutional Alignment Around Bitcoin

In parallel to these global developments, institutional alignment around Bitcoin continues. Several major financial entities have integrated Bitcoin exposure into their portfolios, launched products like ETFs, and begun building custody and trading infrastructure.

This shift is not ideological—it’s pragmatic. Institutions are increasingly treating Bitcoin not as a gamble, but as an uncorrelated hedge with asymmetric upside in macro-uncertain environments.

The key takeaway is that Bitcoin’s narrative is evolving from risk-on speculation to macro hedge. That shift changes how it's traded, valued, and held.

2026 and the Timing of a Possible PEAK

Interestingly, the projected peak of the current crypto cycle aligns with the timing of several geopolitical forecasts. Some macro analysts predict that major disruptions to the global economy could materialize by early 2026—just as Bitcoin historically tends to peak 12–18 months post-halving.

This alignment isn’t deterministic, but it’s suggestive. If geopolitical conflict escalates and monetary regimes are questioned, Bitcoin could benefit not from hype, but from its underlying design.

In such a scenario, estimates of Bitcoin reaching $250,000 or more—while speculative—are not purely fantasy. They reflect what could happen if Bitcoin becomes a globally recognized monetary hedge during a systemic macro reset.

Implications for Portfolio Construction

If these scenarios play out, they carry implications for crypto portfolios. Altcoins, which rely more on risk appetite and speculative narratives, may underperform in a risk-off, conflict-driven environment.

Bitcoin, conversely, may outperform as capital concentrates in the most liquid, battle-tested asset.

This doesn’t suggest abandoning altcoins entirely—but it does support the idea that Bitcoin may deserve a larger allocation than in previous cycles, especially as macro risks rise.

Risk, Resilience, and Reality

It’s important to acknowledge the counterarguments. Bitcoin’s volatility, regulatory uncertainty, and still-limited real-world use cases are valid concerns. No asset is invulnerable, and Bitcoin’s rise is not guaranteed.

Yet, amid systemic uncertainty, few assets offer the combination of digital mobility, fixed supply, and decentralization that Bitcoin does.

Whether or not a macro crisis unfolds as predicted, the world is clearly entering a phase where economic assumptions are being questioned. In that context, Bitcoin becomes not just an asset—but a signal.

Conclusion

Bitcoin’s role in the global economy is far from settled. But in 2025, it is clear that the asset is evolving beyond its original use case. No longer just a curiosity for early adopters, Bitcoin is increasingly part of the conversation among serious investors, analysts, and policymakers.

If the world moves toward greater uncertainty, more conflict, and more questioning of existing monetary systems, Bitcoin may be one of the few assets positioned to benefit—not because of speculation, but because of structural design.

To navigate this evolving landscape, investors need access to accurate, real-time macro signals—and that’s where tools like Token Metrics become indispensable. As a leading crypto research and analytics platform, Token Metrics helps investors track sentiment shifts, macro trends, and on-chain dynamics that may signal Bitcoin’s strengthening role in global finance.

It is not a prediction. It’s a possibility. One worth understanding—and preparing for with the right tools.

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