How do I install X402 Services?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does X402 Services need an API key?

No required environment variable is listed on this record.

What transport does X402 Services use?

X402 Services is reached over HTTP.

When was X402 Services last checked?

Last checked 2026-10-18. The only x402 MCP server for Robinhood Chain (chainId 4663) - 147 onchain, trading & AI tools.

X402 Services MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://x402-services-production.up.railway.app/mcp

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http ai.firmbrain-x402-services https://x402-services-production.up.railway.app/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "ai.firmbrain-x402-services": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://x402-services-production.up.railway.app/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.0.1
Last checked

60 tools

Tools

tools/listVoice mode preview

Tool	What it does
markdown	Convert raw HTML to clean, LLM-ready markdown. Strips nav/script/style noise. [x402 paid tool — price $0.003; POST /api/markdown]
extract	Extract structured data (title, links, meta, headings, text) from HTML as JSON. [x402 paid tool — price $0.003; POST /api/extract]
read	Fetch any public web page and return clean, LLM-ready markdown (plus title and final URL). Send { url }. We handle fetching, redirects, and noise-stripping. [x402 paid tool — price $0.003; POST /api/read]
read_structured	Fetch any public web page and return structured JSON: title, meta description, headings, links, text preview. Send { url }. [x402 paid tool — price $0.003; POST /api/read/structured]
memory_set	Agent Memory: durable key-value storage that survives between agent runs. Write a JSON value (16KB max) under a key. First write to a namespace claims it with your secret token. Send { ns, token, key, value }. [x402 paid tool — price $0.003; POST /api/memory/set]
memory_get	Agent Memory: read a stored value by key, or omit key to list all keys in your namespace. Send { ns, token, key? }. [x402 paid tool — price $0.003; POST /api/memory/get]
schedule	Webhook Scheduler: schedule a future HTTP callback. At fireAt, we call your url with the payload. Agents' alarm clock for async work. Send { token, url, fireAt (ISO-8601), payload?, method? }. [x402 paid tool — price $0.003; POST /api/schedule]
schedule_status	Webhook Scheduler: check a scheduled job's status and last delivery result. Send { token, id }. [x402 paid tool — price $0.003; POST /api/schedule/status]
counter	Atomic counter: increment-and-return a named counter (collision-free running totals & IDs across agent runs). Send { name, token, by? }. [x402 paid tool — price $0.003; POST /api/counter]
lock_acquire	Distributed lock: acquire a named lock for ttlSec so only one agent proceeds. Returns acquired:false if held. Send { name, token, ttlSec? }. [x402 paid tool — price $0.003; POST /api/lock/acquire]
lock_release	Release a distributed lock you hold. Send { name, token, holder? }. [x402 paid tool — price $0.003; POST /api/lock/release]
queue_push	Task queue: append a JSON item to a named queue for later/other agents. Send { name, token, item }. [x402 paid tool — price $0.003; POST /api/queue/push]
queue_pop	Task queue: pop the oldest item from a named queue (FIFO). Send { name, token }. [x402 paid tool — price $0.003; POST /api/queue/pop]
idempotency	Idempotency key: returns firstTime:true only once per key within ttl (dedupe retries/double-sends). Send { key, token, ttlSec? }. [x402 paid tool — price $0.003; POST /api/idempotency]
pubsub_publish	Pub/sub: publish a message to a topic. Send { topic, token, data }. [x402 paid tool — price $0.003; POST /api/pubsub/publish]
pubsub_poll	Pub/sub: fetch messages on a topic newer than a sequence number. Send { topic, token, since? }. [x402 paid tool — price $0.003; POST /api/pubsub/poll]
board_set	Shared blackboard: set a versioned key on a multi-writer board. Send { board, token, key, value }. [x402 paid tool — price $0.003; POST /api/board/set]
board_get	Shared blackboard: read one key or list all keys+entries. Send { board, token, key? }. [x402 paid tool — price $0.003; POST /api/board/get]
ratelimit	Rate-limit token bucket: shared self-throttle. Returns allowed + remaining. Send { bucket, token, capacity, refillPerSec, cost? }. [x402 paid tool — price $0.003; POST /api/ratelimit]
deadman_register	Dead-man's switch: if you don't ping within intervalSec, we POST your webhook. Detects crashed agents. Send { id, token, url, intervalSec }. [x402 paid tool — price $0.003; POST /api/deadman/register]
deadman_ping	Dead-man's switch: heartbeat to keep the switch from firing. Send { id, token }. [x402 paid tool — price $0.003; POST /api/deadman/ping]
calc	Exact calculator + unit conversion (arbitrary precision). e.g. '3 inch to cm', 'sqrt(2)^10'. Send { expression, precision? }. [x402 paid tool — price $0.003; POST /api/calc]
datetime	Date/time math + timezones. op: now \| convert \| add \| diff. Send { op, time?, timezone?, amount?, unit?, to? }. [x402 paid tool — price $0.003; POST /api/datetime]
business_days	Add/subtract business days (skips weekends + given holidays). Send { start?, addDays, holidays?, timezone? }. [x402 paid tool — price $0.003; POST /api/business-days]
regex	Apply a regex to text and return all matches + capture groups (deterministic; LLMs guess regex wrong). Send { pattern, text, flags? }. [x402 paid tool — price $0.003; POST /api/regex]
jsonschema	Validate data against a JSON Schema (strict). Returns valid + detailed errors. Send { schema, data }. [x402 paid tool — price $0.003; POST /api/jsonschema]
diff	Structured deep diff of two JSON values (added/removed/changed by path). Send { a, b }. [x402 paid tool — price $0.003; POST /api/diff]
cron_explain	Explain a cron expression: the next N run times in a timezone. Send { expression, count?, timezone? }. [x402 paid tool — price $0.003; POST /api/cron/explain]
schedule_cron	Recurring webhook: fire your URL on a cron schedule (repeats). Send { token, url, cron, payload?, method? }. [x402 paid tool — price $0.003; POST /api/schedule/cron]
links_check	Batch link-liveness: check up to 50 URLs return 200 (dead-link detection). Send { urls: [..] }. [x402 paid tool — price $0.003; POST /api/links/check]
inbox_create	Webhook inbox: get a disposable URL that captures inbound POSTs for you to poll. Send { token }. [x402 paid tool — price $0.003; POST /api/inbox/create]
inbox_poll	Webhook inbox: fetch captured messages newer than a timestamp. Send { id, token, since? }. [x402 paid tool — price $0.003; POST /api/inbox/poll]
wallet_reputation	Wallet reputation: objective on-chain trust signals for an EVM address (vet a counterparty before dealing). Send { address }. [x402 paid tool — price $0.003; POST /api/wallet/reputation]
crypto_price	Live crypto & token prices in USD. Send tickers or coingecko ids, e.g. { symbols: ["ETH","USDC","BTC"] }. Real-time on-chain pricing for finance and trading agents. [x402 paid tool — price $0.003; POST /api/crypto/price]
crypto_convert	Convert an amount between any two crypto/fiat assets at live rates. Send { amount, from, to }, e.g. convert 1.5 ETH to USDC. Instant FX for agents pricing on-chain actions. [x402 paid tool — price $0.003; POST /api/crypto/convert]
crypto_balances	Full wallet portfolio: native ETH + all ERC-20 token balances for an address on Base, with amounts. Send { address }. Let agents read any wallet's holdings. [x402 paid tool — price $0.003; POST /api/crypto/balances]
crypto_gas	Live Base gas oracle: current gas price plus estimated cost (ETH & USD) for a transfer, swap, or mint. Send {} — no input needed. Agents budget transactions before acting. [x402 paid tool — price $0.003; POST /api/crypto/gas]
crypto_ens	Resolve an ENS name or Basename to an address, or reverse-resolve a 0x address to its name + avatar. Send { input }. Human-readable identity for agents. [x402 paid tool — price $0.003; POST /api/crypto/ens]
crypto_tx	Transaction status & receipt on Base: confirmations, success/fail, from/to, value, fee, method. Send { hash }. Agents confirm their on-chain actions settled. [x402 paid tool — price $0.003; POST /api/crypto/tx]
crypto_token	Token intelligence: name, symbol, supply, holder count, source-verification, and safety signals for a contract. Send { address }. Agents vet a token before touching it. [x402 paid tool — price $0.003; POST /api/crypto/token]
crypto_yields	Top DeFi yield opportunities across chains from DeFiLlama, filterable by chain/project/min-TVL, ranked by APY. Send { chain?, project?, minTvl?, limit? }. Yield discovery for finance agents. [x402 paid tool — price $0.003; POST /api/crypto/yields]
crypto_activity	Wallet activity summary: recent transactions, top methods called, distinct counterparties, and latest actions for an address on Base. Send { address }. Agents profile what a wallet does. [x402 paid tool — price $0.003; POST /api/crypto/activity]
crypto_contract	Contract decoder: pass a verified 0x contract address to get its function ABI, or a 0x-selector (8 hex) to decode which function it is. Send { input }. Agents understand contracts before calling them. [x402 paid tool — price $0.003; POST /api/crypto/contract]
snipe_newpairs	Snipe new token launches: the freshest liquidity pools on a chain, newest first, with pool age in seconds, price, FDV, and liquidity. Send { chain, limit?, minLiquidityUsd? }. Supports Base, Solana, Ethereum, Arbitrum, BSC, Polygon, Optimism, Avalanche, and Robinhood Chain. The core new-pair detecti
snipe_trending	Trending / hottest pools on a chain right now, ranked by volume and momentum, with price change, volume, and liquidity. Send { chain, limit? }. Supports Base, Solana, Ethereum, Arbitrum, BSC, and Robinhood Chain. Momentum discovery for trading agents chasing volume. [x402 paid tool — price $0.005; P
snipe_safety	Full rug/honeypot audit for a token: honeypot detection, buy/sell tax, source verification, mint/pause/blacklist/hidden-owner privileges, proxy check, holder & LP counts, plus a 0-100 risk score and plain-English verdict (AVOID / HIGH RISK / CAUTION / LOOKS OK). Send { address, chain? }. The must-ha
snipe_honeypot	Fast yes/no honeypot check for a token before buying: is it sellable, buy/sell tax, and whether the creator has deployed honeypots before. Send { address, chain? }. Cheap, instant pre-trade gate against unsellable scam tokens. [x402 paid tool — price $0.005; POST /api/snipe/honeypot]
snipe_holders	Holder & liquidity concentration analysis: top holder %, top-10 %, LP locked/burned %, holder list with contract/lock flags, and concentration risk warnings. Send { address, chain? }. Detect whale-dumps and rug risk before entering a position. [x402 paid tool — price $0.005; POST /api/snipe/holders]
snipe_pair	Full trading snapshot for a token: live price, liquidity, FDV, market cap, 5m/1h/6h/24h volume and price change, buy/sell counts, and pair age. Send { address, chain? }. Complete pre-trade due diligence in one call. [x402 paid tool — price $0.005; POST /api/snipe/pair]
snipe_search	Search tokens and trading pairs across all chains by name, symbol, or address, ranked with price, liquidity, and 24h volume. Send { query, limit? }. Find the right contract fast before sniping. [x402 paid tool — price $0.005; POST /api/snipe/search]
snipe_wallet	Copy-trade tracker: a wallet's recent token transfers on Base, labeled buy/sell, plus the tokens it just acquired. Send { address, limit? }. Follow smart-money wallets and mirror what they're buying. [x402 paid tool — price $0.005; POST /api/snipe/wallet]
snipe_impact	Estimate price impact and suggested max slippage for a trade of a given USD size against a token's live pool liquidity. Send { address, amountUsd, chain? }. Size positions correctly before executing a swap. [x402 paid tool — price $0.005; POST /api/snipe/impact]
snipe_rh	Robinhood Chain live pools: new and trending liquidity pools on Robinhood's Ethereum L2 for tokenized stocks and DeFi, built for 24/7 agentic onchain trading. Send { limit? }. First-mover data feed for agents trading Robinhood Chain's tokenized-stock and RWA ecosystem. [x402 paid tool — price $0.005
rh_stock	Robinhood Chain tokenized-stock quote: pass a stock ticker (NVDA, AAPL, TSLA...) and get its canonical on-chain token on Robinhood's L2 with live price, liquidity, 24h volume, and premium/discount vs the real-world share price. Scam-token filtered. Send { ticker }. The price feed for agents trading
rh_stocks	List tokenized stocks & ETFs live on Robinhood Chain with on-chain prices, liquidity, and volume. Send {} for the default basket or { tickers: [...] } for specific ones. Discovery feed for agents building tokenized-equity strategies. [x402 paid tool — price $0.02; POST /api/rh/stocks]
rh_premium	Premium/discount arbitrage signal: compares a tokenized stock's live Robinhood Chain price against the real-world equity price and returns the premium/discount % plus a buy-onchain/sell-equity signal. Send { ticker }. The core edge for tokenized-equity arb agents trading 24/7 vs market hours. [x402
rh_arb	Cross-venue arbitrage: prices a tokenized stock across every liquid Robinhood Chain pool/DEX and returns the high/low and spread %. Send { ticker, minLiquidityUsd? }. Spot mispricings between venues for on-chain arb agents. [x402 paid tool — price $0.005; POST /api/rh/arb]
rh_yields	DeFi LP yield opportunities on Robinhood Chain: pools ranked by estimated fee APR (fee tier x 24h volume / liquidity), with liquidity and volume. Send { limit?, minLiquidityUsd? }. Yield discovery for agents providing liquidity on Robinhood's L2. [x402 paid tool — price $0.02; POST /api/rh/yields]
rh_tvl	Robinhood Chain health snapshot: total value locked, 24h DEX volume, indexed pool count, and the top pools by liquidity. Send {}. Macro view of Robinhood's onchain economy for allocation and risk decisions. [x402 paid tool — price $0.005; POST /api/rh/tvl]
rh_pool	Deep analytics for a specific Robinhood Chain pool or token: price, liquidity, 24h volume, FDV, fee tier, estimated fee APR, and 24h price change. Send { address } (pool or token contract). Per-pool due diligence for LP and trading agents. [x402 paid tool — price $0.005; POST /api/rh/pool]

Robinhood Chain for AI Agents — the first RPC, data & AI layer (pay-per-call, no accounts)

The only x402 service built for Robinhood Chain (chainId 4663). If your agent needs to read, watch, or transact on Robinhood Chain — block data, balances, token transfers, contract calls, the tokenized-stock registry, USDG stats, address webhooks, or LLM inference payable in USDG on Robinhood Chain — this is the layer. And it's one endpoint of a 147-tool onchain + trading intelligence suite (full list below). One URL, pay per request, no API keys, no signup.

Searchable: Robinhood Chain RPC · Robinhood Chain API for agents · RH Chain block/tx/balance · USDG data · Robinhood tokenized-stock registry · AI inference payable in USDG · Robinhood Chain webhook watcher. If you're integrating Robinhood Chain and need machine-readable data, start here.

Base URL: https://x402-services-production.up.railway.app · MCP: …/mcp · Catalog: …/api/catalog

Robinhood Chain endpoints (pay-per-call, USDC on any chain or USDG on RH Chain)

Endpoint	What it returns	Price
`POST /api/rhchain/block`	latest block: number, timestamp, tx count, gas	$0.001
`POST /api/rhchain/tx`	tx status (success/failed/pending), from/to, gas, logs	$0.005
`POST /api/rhchain/balance`	native + any-token balance (defaults to USDG)	$0.002
`POST /api/rhchain/token-transfers`	ERC-20 transfer history for an address	$0.005
`POST /api/rhchain/logs`	event logs for a contract (topic filter, block window)	$0.005
`POST /api/rhchain/gas`	gas price + estimate for a call	$0.002
`POST /api/rhchain/contract`	is-contract, verified name, ABI availability	$0.005
`POST /api/rhchain/call`	read-only eth_call against any contract	$0.005
`POST /api/rhchain/nonce`	account nonce (latest + pending) for building txs	$0.001
`POST /api/rhchain/activity`	recent transactions for an address	$0.005
`POST /api/rhchain/registry`	canonical tokenized-stock symbol -> contract registry	$0.002
`POST /api/rhchain/usdg`	USDG supply, holders, contract	$0.002
`POST /api/rhchain/watch`	register an https webhook; we POST on each new transfer	$0.01

Plus the AI gateway — the first LLM inference payable in USDG on Robinhood Chain: POST /api/ai/chat ($0.005, fast models) · POST /api/ai/chat-pro ($0.03, frontier models) · POST /api/ai/models ($0.001) · free health check: GET /api/ai/health.

The full Firmbrain suite — 147 pay-per-call x402 tools

Robinhood Chain is our first-mover focus, but the same base URL, same x402 payment, and same MCP server expose a full onchain + trading-intelligence stack. Every tool below is one paid POST; the MCP server at …/mcp returns all 147 with JSON schemas, and …/api/catalog lists every price.

Vertical	#	What it covers
Robinhood Chain trading intel	25	tokenized-stock 24/7 gap radar, market-session clock, per-venue liquidity/slippage/depth, premium-discount arb, live pools & TVL, canonical contract verification
Robinhood Chain RPC & data	13	block/tx/balance/logs/gas/contract/call/nonce/activity, tokenized-stock registry, USDG stats, address webhooks
Crypto & token data	10	prices, market data, honeypot/rug detection, token metadata
Sniping / new-token intel	10	new listings, launch signals, liquidity & holder checks
Perps & derivatives	6	funding rates, open interest, basis, funding-arb, oracle deviation
Options	5	greeks, implied volatility, chains
Prediction markets	5	live odds and market data
Catalysts & events	4	token unlocks, scheduled events
Execution / MEV	4	routing, execution and MEV signals
Compliance	4	OFAC sanctions screening, wallet risk score, address labels, taint tracing
Pre-sign transaction safety	5	pre-sign guardrail & simulation, balance-change preview, Pre-Sign Co-Pilot
Portfolio & PnL	4	positions, PnL, tax lots, value-at-block, risk
Agent-to-agent escrow	4	trustless A2A escrow primitives
DeFi lending	3	health factors, liquidation scanner, rates

Full, always-current machine-readable list: GET /api/catalog · human overview: https://agents.firmbrain.ai

Drop-in — add once, call forever (TypeScript)

pay is your x402-wrapped fetch (e.g. wrapFetchWithPayment(fetch, signer) — any x402 client). Paste this and your agent has Robinhood Chain (and the whole suite) in two lines. (Full file: rh.ts.)

const RH = "https://x402-services-production.up.railway.app/api";

/** One call to any endpoint, paid over x402. */
export async function rh(pay: typeof fetch, endpoint: string, body: object = {}) {
  const r = await pay(`${RH}/${endpoint}`, {
    method: "POST", headers: { "content-type": "application/json" }, body: JSON.stringify(body),
  });
  return r.json();
}

// examples:
await rh(pay, "rhchain/balance", { address: "0x…" });               // USDG + native balance
await rh(pay, "rhchain/tx", { hash: "0x…" });                       // did my tx land?
await rh(pay, "rhchain/registry");                                  // every RH tokenized stock -> address
await rh(pay, "crypto/price", { symbol: "BTC" });                  // any suite tool, same wrapper
await rh(pay, "ai/chat", { messages: [{ role: "user", content: "…" }] }); // LLM, pay in USDG

Drop-in — webhook watcher (stop polling)

// get pushed an event whenever an address has a new ERC-20 transfer on Robinhood Chain
await rh(pay, "rhchain/watch", { address: "0x…", callbackUrl: "https://your-agent.dev/hook" });
// we POST { watcherId, address, event, hash, token, timestamp } to your URL on each new transfer

MCP (for agent frameworks)

Point your MCP client at https://x402-services-production.up.railway.app/mcp and call tools/list — all 147 tools (every Robinhood Chain tool plus the full suite) appear with JSON schemas. Register it once as your agent's onchain + Robinhood Chain provider.

How payment works

First response is HTTP 402 with x402 payment terms. Settle in USDC on Base, Polygon, Arbitrum, or Solana — or USDG on Robinhood Chain — and retry with the X-PAYMENT header. Any x402 client library does this automatically. No accounts, no keys, no subscriptions.

Built for autonomous agents. Not financial, legal, or tax advice.

X402 Services

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install X402 Services?

Does X402 Services need an API key?

What transport does X402 Services use?

When was X402 Services last checked?

Documentation

Robinhood Chain for AI Agents — the first RPC, data & AI layer (pay-per-call, no accounts)

Robinhood Chain endpoints (pay-per-call, USDC on any chain or USDG on RH Chain)

The full Firmbrain suite — 147 pay-per-call x402 tools

Drop-in — add once, call forever (TypeScript)

Drop-in — webhook watcher (stop polling)

MCP (for agent frameworks)

How payment works