x402-agent-tools

103 production-ready AI agent tools with x402 micropayments. Pay-per-call USDC on Base. Zero API keys. Zero subscriptions. Just a wallet.

The largest collection of x402-compatible tools for autonomous AI agents. Built for LangChain, Vercel AI SDK, CrewAI, AutoGPT, and any agent framework that supports tool calling.

3-17x cheaper than StableEnrich, httpay, BlockRun, and Nansen. Same data. Fraction of the cost. See benchmark.

Why x402-agent-tools?

| Feature | x402-agent-tools | StableEnrich | httpay | BlockRun | |---------|-----------------|--------------|--------|----------| | Tools available | 103 | ~12 | ~8 | ~15 | | Avg price/call | $0.003 | $0.01-0.05 | $0.01-0.03 | $0.01-0.05 | | API keys needed | None | Yes | Yes | Yes | | Subscription | None | Monthly | Monthly | Monthly | | Hyperliquid data | 7 APIs | 0 | 0 | 0 | | Prediction markets | 2 APIs | 0 | 0 | 0 | | Payment | USDC on Base | USDC | USDC | USDC | | Framework support | LangChain, AI SDK | Custom | Custom | Custom |

Install

npm install x402-agent-tools @x402/fetch @x402/evm viem

Quick Start — 3 Lines to Your First Call

import { createClient } from "x402-agent-tools";

const client = createClient("0xYourPrivateKey");

// Crypto: whale positions on Hyperliquid
const whales = await client.call("hyperliquid_whales", { ticker: "BTC" });

// B2B: enrich a company from domain
const company = await client.call("company_enrichment", { domain: "stripe.com" });

// Security: trust score any domain
const trust = await client.call("trust_score", { target: "example.com" });

// DeFi: best bridge route across 60+ chains
const route = await client.call("bridge_routes", {
  fromChain: "1", toChain: "8453", token: "USDC", amount: "1000000"
});

Vercel AI SDK Integration

Use this when building AI agents with Vercel AI SDK. Returns all 103 tools as Vercel-compatible tool objects with automatic x402 payment handling.

import { createClient } from "x402-agent-tools";
import { getX402Tools } from "x402-agent-tools/ai-sdk";
import { generateText } from "ai";
import { anthropic } from "@ai-sdk/anthropic";

const client = createClient("0xYourPrivateKey");

const { text } = await generateText({
  model: anthropic("claude-sonnet-4-20250514"),
  tools: getX402Tools(client),
  prompt: "What are the current funding rates on Hyperliquid for BTC and ETH? Also check if there are any liquidation levels near current prices on Aave.",
});

Filter by category or specific tools

// Only Hyperliquid + DeFi tools (ideal for trading agents)
const tradingTools = getX402Tools(client, {
  categories: ["hyperliquid", "defi", "crypto"]
});

// Only specific tools you need
const researchTools = getX402Tools(client, {
  tools: ["web_scraper", "web_search", "fact_checker", "research_report"]
});

LangChain.js Integration

Use this when building agents with LangChain.js. Returns DynamicStructuredTool instances compatible with all LangChain agent types.

import { createClient } from "x402-agent-tools";
import { getX402LangChainTools } from "x402-agent-tools/langchain";
import { ChatAnthropic } from "@langchain/anthropic";
import { AgentExecutor, createToolCallingAgent } from "langchain/agents";

const client = createClient("0xYourPrivateKey");
const tools = getX402LangChainTools(client);

const llm = new ChatAnthropic({ model: "claude-sonnet-4-20250514" });
const agent = createToolCallingAgent({ llm, tools, prompt: yourPrompt });
const executor = new AgentExecutor({ agent, tools });

await executor.invoke({
  input: "Find the top whale positions on Hyperliquid BTC, check token safety for the top traded token, then summarize the findings."
});

Direct HTTP (No SDK Needed)

Every tool is also available as a standalone x402 HTTP endpoint. Use @x402/fetch directly:

import { wrapFetchWithPayment } from "@x402/fetch";

const response = await paidFetch("https://trust-score-production-ff18.up.railway.app/api", {
  method: "POST",
  body: JSON.stringify({ target: "example.com" }),
});

All 103 Tools

Hyperliquid Suite — 7 tools

#1 Hyperliquid data provider on x402. Complete DEX coverage.

| Tool | Price | What it returns | |------|-------|-----------------| | hyperliquid_data | $0.001 | Perp markets: prices, open interest, 24h volume, orderbook depth for 229 markets | | hyperliquid_whales | $0.003 | Whale positions: sizes, PnL, entry prices, leverage | | hl_vaults | $0.003 | Vault summaries: APR, TVL, PnL, depositor count | | hl_funding | $0.002 | Funding rates: current, 1h, 8h, 24h with arb scanner | | hl_portfolio | $0.003 | Account analysis: positions, PnL, fills, open orders, funding | | hl_spot | $0.002 | 454 spot tokens: prices, volume, wallet balances |

Prediction Markets — 2 tools

| Tool | Price | What it returns | |------|-------|-----------------| | prediction_markets | $0.005 | Active events from Polymarket + Kalshi: probabilities, volume, trending | | event_resolver | $0.005 | Settlement oracle: resolve outcomes, verify claims, check thresholds |

Crypto & DeFi — 16 tools

| Tool | Price | What it returns | |------|-------|-----------------| | wallet_portfolio | $0.003 | Multi-chain wallet balances and token holdings | | gas_oracle | $0.001 | Gas prices: fast/standard/slow for any EVM chain | | gas_estimator | $0.002 | Multi-chain gas comparison in one call | | dex_quotes | $0.005 | Best swap quotes across DEXs with price impact | | token_price | $0.001 | Real-time crypto prices via CoinGecko | | defi_yields | $0.002 | Best DeFi yields: APY, TVL, risk scores | | whale_alert | $0.003 | Large crypto transactions and whale movements | | crypto_news | $0.002 | Crypto news with sentiment scores | | funding_arb | $0.005 | Funding rate arbitrage across exchanges | | funding_rates | $0.002 | Live perp funding: Binance, Bybit, OKX, open interest | | ens_resolver | $0.002 | ENS name resolution and reverse lookup | | token_holders | $0.005 | Token holder distribution: whale count, concentration | | token_ohlcv | $0.002 | Historical OHLCV candles | | airdrop_checker | $0.005 | Check wallet eligibility for active airdrops | | bridge_routes | $0.003 | Best cross-chain bridge routes via LI.FI (60+ chains) | | currency_converter | $0.001 | Fiat (ECB) and crypto (CoinGecko) conversion |

DeFi Advanced — 3 tools

| Tool | Price | What it returns | |------|-------|-----------------| | base_defi | $0.003 | Base chain yields: Aerodrome LP, Moonwell lending | | liquidation_oracle | $0.003 | Liquidation levels: Aave, Compound, Morpho positions | | orderbook_depth | $0.005 | Uniswap V3 liquidity depth and slippage estimation |

NFT — 3 tools

| Tool | Price | What it returns | |------|-------|-----------------| | nft_collection | $0.005 | Collection floor price, volume, holders, rarity | | nft_rarity | $0.003 | Token rarity rank, score, trait floor prices | | nft_metadata | $0.003 | NFT metadata: name, image, attributes, collection info |

Solana — 4 tools

| Tool | Price | What it returns | |------|-------|-----------------| | solana_launches | $0.003 | New token launches: pump.fun, Raydium | | jupiter_quotes | $0.002 | Jupiter aggregator swap quotes | | solana_fees | $0.001 | Priority fee estimates at 6 levels | | solana_pools | $0.003 | DEX pool liquidity: Raydium, Orca, Meteora |

Trust & Security — 8 tools

| Tool | Price | What it returns | |------|-------|-----------------| | trust_score | $0.01 | Unified trust scoring 0-100: domains, wallets, APIs | | token_safety | $0.003 | Rug pull detection: honeypot, liquidity, ownership | | domain_intelligence | $0.005 | Full domain intel: DNS, WHOIS, SSL, registrar | | ssl_checker | $0.002 | SSL/TLS cert: validity, expiry, chain, grade | | http_headers | $0.001 | HTTP security headers: HSTS, CSP, server detection | | port_scanner | $0.003 | TCP port scan: open/closed, response time | | password_strength | $0.001 | Password score 0-100, entropy, crack time | | jwt_decoder | $0.001 | JWT decode: header, payload, claims, expiry |

B2B Enrichment — 6 tools

| Tool | Price | What it returns | |------|-------|-----------------| | email_verification | $0.002 | Email validation: syntax, MX, disposable, score 0-100 | | company_enrichment | $0.01 | Company data: industry, size, tech, social, founded | | person_enrichment | $0.01 | Person data: name, role, company, social, location | | email_finder | $0.005 | Find email from name + domain | | tech_enrichment | $0.005 | 50+ technologies detected on any website | | social_profile | $0.008 | Social profiles: Twitter, GitHub, LinkedIn, YouTube |

Email — 2 tools

| Tool | Price | What it returns | |------|-------|-----------------| | email_deliverability | $0.005 | Deliverability audit: SPF, DKIM, DMARC, score 0-100 | | email_send | $0.003 | Send emails via Resend: text/HTML, delivery status |

Web & SEO — 6 tools

| Tool | Price | What it returns | |------|-------|-----------------| | web_scraper | $0.005 | URL to clean markdown, headless rendering | | seo_analyzer | $0.02 | Full SEO audit: meta, headings, schema, score 0-100 | | screenshot_pdf | $0.008 | Screenshots (PNG/JPEG/WebP) and PDF capture | | web_search | $0.003 | Web search: title, URL, snippet, 10 results | | keyword_research | $0.01 | SEO keywords: Google Suggest, intent, long-tail | | webhook_tester | $0.002 | Test webhooks: custom methods, headers, latency |

Social — 1 tool

| Tool | Price | What it returns | |------|-------|-----------------| | twitter_scraper | $0.005 | Twitter/X profiles, search, timelines. No API key |

Network — 3 tools

| Tool | Price | What it returns | |------|-------|-----------------| | dns_lookup | $0.002 | DNS records: A, MX, TXT, CNAME via Cloudflare DoH | | ip_geolocation | $0.003 | IP geolocation: country, city, ISP, VPN detection | | ip_geolocation_batch | $0.01 | Batch geolocate up to 20 IPs |

NLP — 5 tools

| Tool | Price | What it returns | |------|-------|-----------------| | ai_summarizer | $0.01 | Summarize text/URLs via Claude Haiku | | sentiment_analyzer | $0.005 | Sentiment, emotions, confidence scores | | text_translator | $0.005 | Translate 50+ languages with auto-detection | | text_classifier | $0.005 | Topic classification, readability, content type | | language_detector | $0.002 | Language detection: 30+ languages, script, confidence |

Finance — 1 tool

| Tool | Price | What it returns | |------|-------|-----------------| | stock_price | $0.002 | Real-time stock quotes: price, change, volume, mcap |

Media — 3 tools

| Tool | Price | What it returns | |------|-------|-----------------| | image_resize | $0.003 | Resize images: dimensions, format conversion | | ocr_extract | $0.005 | OCR text extraction from images | | text_to_speech | $0.005 | Text to speech: 20+ languages, MP3 output |

Text Processing — 8 tools

| Tool | Price | What it returns | |------|-------|-----------------| | diff_checker | $0.002 | Line-by-line text diff with similarity score | | word_counter | $0.001 | Words, chars, sentences, paragraphs, reading time | | lorem_ipsum | $0.001 | Placeholder text: paragraphs, sentences, words | | slug_generator | $0.001 | URL-friendly slugs with transliteration | | regex_tester | $0.001 | Regex testing: matches, groups, explanations | | html_to_markdown | $0.001 | HTML to clean Markdown conversion | | markdown_to_html | $0.001 | Markdown to HTML conversion | | markdown_renderer | $0.002 | Markdown to styled HTML (light/dark/GitHub themes) |

Research — 2 tools

| Tool | Price | What it returns | |------|-------|-----------------| | fact_checker | $0.005 | Verify claims with evidence and sources | | research_report | $0.02 | Multi-source research reports in markdown |

Compliance — 2 tools

| Tool | Price | What it returns | |------|-------|-----------------| | gdpr_scanner | $0.02 | GDPR compliance: consent, privacy, trackers | | pii_detector | $0.005 | PII detection: emails, SSNs, credit cards, redaction |

Validation — 5 tools

| Tool | Price | What it returns | |------|-------|-----------------| | phone_validation | $0.003 | Phone validation: carrier, line type, E.164 | | phone_validation_batch | $0.025 | Batch validate up to 50 phones | | sms_validator | $0.002 | SMS-capable validation with carrier type | | address_validator | $0.003 | Postal address parsing and normalization | | json_validator | $0.001 | JSON syntax + schema validation |

Developer — 1 tool

| Tool | Price | What it returns | |------|-------|-----------------| | code_sandbox | $0.01 | Execute Python/JS/SQL in sandbox with output |

Generators — 5 tools

| Tool | Price | What it returns | |------|-------|-----------------| | qr_code | $0.001 | QR codes as base64 PNG | | barcode_generator | $0.001 | Barcodes: EAN-13, UPC-A, Code128, Code39 | | hash_generator | $0.001 | MD5, SHA1, SHA256, SHA512, bcrypt hashes | | uuid_generator | $0.001 | UUID v4, v7, ULID, nanoid (batch 100) | | color_palette | $0.001 | Harmonious color palettes from hex |

Documents — 1 tool

| Tool | Price | What it returns | |------|-------|-----------------| | pdf_generator | $0.008 | PDF from HTML/Markdown with custom layout |

Utility — 8 tools

| Tool | Price | What it returns | |------|-------|-----------------| | base64_codec | $0.001 | Base64 encode/decode (standard + URL-safe) | | csv_to_json | $0.001 | CSV to JSON with auto-detect delimiter | | cron_parser | $0.001 | Parse cron expressions with next run times | | crontab_generator | $0.001 | Natural language to cron expression | | timezone_converter | $0.001 | Datetime conversion between IANA timezones | | unit_converter | $0.001 | Length, weight, temp, volume, speed conversion | | url_shortener | $0.001 | URL shortening with custom aliases | | user_agent_parser | $0.001 | Parse user agent: browser, OS, device, bot |

Data — 2 tools

| Tool | Price | What it returns | |------|-------|-----------------| | weather | $0.001 | Current weather + 7-day forecast | | vector_search | $0.005 | TF-IDF cosine similarity document search |

How x402 Payment Works

Your Agent                    x402-agent-tools                  API Server
    |                              |                                |
    |-- call("trust_score", {})  ->|                                |
    |                              |-- POST /api ------------------>|
    |                              |<-- 402 Payment Required -------|
    |                              |                                |
    |                              |   [auto-signs USDC payment]    |
    |                              |                                |
    |                              |-- POST /api + payment header ->|
    |                              |<-- 200 OK + JSON data ---------|
    |<-- structured result --------|                                |

1. Your agent calls a tool through the SDK
2. The SDK sends an HTTP request to our API
3. Server responds 402 Payment Required with price in USDC
4. @x402/fetch automatically signs a USDC micro-payment on Base L2
5. Request retries with the signed payment header
6. You get structured JSON data back

No API keys. No rate limits. No subscriptions. Pay per call.

Categories

const client = createClient("0xYourPrivateKey");

// List all categories
console.log(client.listCategories());
// ["hyperliquid", "prediction", "crypto", "defi", "nft", "solana",
//  "security", "enrichment", "email", "web", "social", "network",
//  "nlp", "finance", "media", "text", "research", "compliance",
//  "validation", "developer", "generator", "document", "utility", "data"]

// Get tools in a category
const cryptoTools = client.getToolsByCategory("hyperliquid");

// List all 103 tools
const all = client.listTools();

Use Cases

Trading Agent — Use hyperliquid_* + funding_rates + liquidation_oracle + prediction_markets to build autonomous trading strategies. Monitor whale positions, funding arbitrage, and prediction market odds in real-time.

Research Agent — Use web_search + web_scraper + fact_checker + research_report + ai_summarizer to build deep research pipelines. Scrape, verify, and synthesize information from multiple sources.

Security Agent — Use trust_score + token_safety + ssl_checker + port_scanner + gdpr_scanner to audit websites, tokens, and infrastructure. Generate compliance reports automatically.

Sales Agent — Use email_finder + company_enrichment + person_enrichment + email_verification + email_send to build outbound sales pipelines. Find, enrich, verify, and contact leads at scale.

DeFi Agent — Use defi_yields + base_defi + bridge_routes + dex_quotes + wallet_portfolio to optimize yield farming, find bridge routes, and manage multi-chain portfolios.

Requirements

• Node.js >= 18
• A wallet with USDC on Base L2 (even $1 gets you 100-1000+ calls)
• Private key for signing payments (use a dedicated agent wallet, not your main wallet)

Links

• GitHub
• x402 Protocol
• x402scan Analytics

License

MIT