Which integrations are available for this server?

Provides web search functionality using DuckDuckGo instant-answer results. Provides company enrichment and lookup using Wikipedia as a data source alongside SEC EDGAR.

How do I use NEX Agent Co. MCP Server?

1. Click on "Deploy Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@NEX Agent Co. MCP Server what's the current Bitcoin price?" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

NEX Agent Co. MCP Server

Official

by NEXAITECHAU

Overview Schema Source Related Servers Discussions Admin

Python

Remote

NEX Agent Co. — MCP Server

MCP server wrapping all 31 paid x402 endpoints of NEX Agent Co. as standard MCP tools. Agents that pay in USDC on Base get inference, data, security, and discovery — no API keys.

Default mode: every call goes to the free mirror at /v1/free/<endpoint> (30 req/min/IP, no payment). Perfect for dev, eval, and prototypes.
Paid mode: pass paid: true on any call. Server signs an EIP-3009 transferWithAuthorization for the tier's price in USDC and retries with X-PAYMENT.

Tools (31 total)

Inference (6)

Tool	Endpoint	Paid price	Description
`nex_chat`	`/v1/chat`	$0.001	Chat via nemotron-3.5-lightning:30b (1M ctx, 4x throughput)
`nex_chat_compat`	`/v1/chat/completions`	$0.001	OpenAI-compatible chat completions
`nex_code`	`/v1/code`	$0.005	Code via qwen3-coder:30b
`nex_code_pro`	`/v1/code-pro`	$0.012	Premium code via qwen3-coder-next 80B-A3B (70.6% SWE-bench, MoE)
`nex_vision`	`/v1/vision`	$0.010	Vision+text via qwen3.8:27b
`nex_embed`	`/v1/embed`	$0.0001	Embeddings via nomic-embed-text

KYA / Agent Identity (2)

Tool	Endpoint	Paid price	Description
`nex_agent_passport`	`/v1/agent-passport`	$0.01	Issue ERC-8004-style agent passport (signed JSON credential)
`nex_agent_verify`	`/v1/agent-verify`	$0.005	Verify a signed agent passport (valid/invalid + issuer + age)

B2B Enrichment (2)

Tool	Endpoint	Paid price	Description
`nex_company_lookup`	`/v1/company-lookup`	$0.05	Company enrichment via SEC EDGAR + Wikipedia
`nex_email_verify`	`/v1/email-verify`	$0.01	Email deliverability (DNS MX + SMTP banner + disposable check)

Web / Discovery (2)

Tool	Endpoint	Paid price	Description
`nex_web_search`	`/v1/web-search`	$0.005	Web search via DuckDuckGo instant-answer
`nex_bazaar_search`	`/v1/bazaar-search`	$0.005	Search 28K x402 services by keyword

Security (11)

Tool	Endpoint	Paid price	Description
`nex_phishing_check`	`/v1/phishing-check`	$0.001	URL safety (typosquatting, suspicious TLDs, punycode, shorteners)
`nex_contract_risk`	`/v1/contract-risk`	$0.05	Smart contract risk grade (A-F) via Base RPC + DefiLlama
`nex_wallet_approvals`	`/v1/wallet-approvals`	$0.05	Scan wallet for risky ERC-20 approvals
`nex_token_safety`	`/v1/token-safety`	$0.01	Token safety (mint fn, honeypot patterns, owner privileges)
`nex_address_label`	`/v1/address-label`	$0.005	Label lookup (exchanges, bridges, MEV bots, famous wallets)
`nex_address_reputation`	`/v1/address-reputation`	$0.05	Address reputation score 0-1000 (age, balance, activity, sanctions)
`nex_hack_feed`	`/v1/hack-feed`	$0.001	Recent hack/exploit feed from DefiLlama
`nex_ens_lookup`	`/v1/ens-lookup`	$0.001	Resolve ENS name -> address
`nex_wallet_audit`	`/v1/wallet-audit`	$0.10	Full wallet security audit (ENS + label + approvals + grade)
`nex_ens_reverse`	`/v1/ens-reverse`	$0.001	Reverse ENS: address -> name
`nex_address_activity`	`/v1/address-activity`	$0.01	Recent transactions for any address

Data Utilities (8)

Tool	Endpoint	Paid price	Description
`nex_crypto_price`	`/v1/crypto-price`	$0.0001	Real-time crypto prices (CoinGecko)
`nex_gas_tracker`	`/v1/gas-tracker`	$0.001	Real-time gas (gwei) + block number
`nex_token_balance`	`/v1/token-balance`	$0.001	ERC-20 token balance lookup
`nex_weather`	`/v1/weather`	$0.0001	Weather forecast (Open-Meteo)
`nex_geo`	`/v1/geo`	$0.0001	IP geolocation (ipapi.co)
`nex_fx`	`/v1/fx`	$0.0001	Currency exchange rates (exchangerate.host)
`nex_whois`	`/v1/whois`	$0.0002	Domain WHOIS
`nex_yield_scanner`	`/v1/yield-scanner`	$0.005	DeFi yield scanner across 17K pools (DeFiLlama)

Related MCP server: x402tools MCP Server

Install

pip install mcp
# CDP creds are OPTIONAL — only required if you pass `paid: true` on any call.
# Without them, every call goes to the free mirror (30/min/IP).
export CDP_API_KEY_ID=...
export CDP_API_KEY_SECRET=...
export CDP_WALLET_SECRET=...
# Paying wallet (defaults to NEX treasury 0x28F3D3fb24D4926BF5C35296c822d2a43D181177)
export NEX_WALLET=0x28F3D3fb24D4926BF5C35296c822d2a43D181177
# NEX x402 base URL (defaults to live Cloudflare tunnel)
export NEX_BASE_URL=https://lots-dave-morgan-sized.trycloudflare.com

Run

python server.py

Use from Claude Desktop / any MCP host

{
  "mcpServers": {
    "nex": {
      "command": "python",
      "args": ["/path/to/nex-agent-co-mcp/server.py"],
      "env": {
        "CDP_API_KEY_ID": "...",
        "CDP_API_KEY_SECRET": "...",
        "CDP_WALLET_SECRET": "..."
      }
    }
  }
}

CDP creds are optional — omit them if you only need the free mirror.

Example calls

Free (default, no payment):

{ "name": "nex_crypto_price", "arguments": { "symbol": "BTC,ETH" } }

Paid (x402 USDC on Base):

{ "name": "nex_crypto_price", "arguments": { "symbol": "BTC,ETH", "paid": true } }

Multi-param (yield scanner):

{ "name": "nex_yield_scanner", "arguments": { "chain": "base", "stable": true, "min_tvl": 5000000, "min_apy": 5, "max": 10 } }

Chat (OpenAI-compatible):

{ "name": "nex_chat_compat", "arguments": { "messages": [{"role": "user", "content": "Hello"}] } }

Response envelope

Every call returns a JSON envelope so callers know what they hit:

{
  "paid": false,
  "tier": "free",
  "path": "/v1/free/crypto-price",
  "price_usdc": 0.0,
  "result": { "...": "endpoint payload" }
}

For paid calls:

{
  "paid": true,
  "tier": "paid",
  "path": "/v1/crypto-price",
  "price_usdc": 0.0001,
  "wallet": "0x28F3D3fb24D4926BF5C35296c822d2a43D181177",
  "result": { "...": "endpoint payload" }
}

How payment works (when `paid: true`)

Server hits the NEX x402 endpoint, gets a 402 Payment Required with EIP-3009 payment spec.
Server signs transferWithAuthorization (gasless, EIP-712 typed data) for the tier's price in USDC.
Server retries with the X-PAYMENT: <base64url> header.
Facilitator (PayAI / CDP) settles on-chain; NEX returns the response.
The user's wallet pays USDC directly to NEX treasury 0x28F3D3fb24D4926BF5C35296c822d2a43D181177. No middleman custody.

For the default free path, steps 1-4 collapse to a plain HTTP POST against /v1/free/<endpoint>.

Discovery

The upstream NEX x402 manifest is at:

https://lots-dave-morgan-sized.trycloudflare.com/.well-known/x402.json

Backed by

Local open-weight models running on M5 Max 128GB:

Qwen3.5 (Nemotron 3.5 Lightning, 1M ctx)
Qwen3-Coder (30B)
Qwen3-Coder-Next 80B-A3B (MoE)
Qwen3.8 27B (vision)
nomic-embed-text
Plus 24 external data/security/web tools (SEC EDGAR, CoinGecko, Open-Meteo, DeFiLlama, ipapi.co, exchangerate.host, Base RPC, ENS, DuckDuckGo, …)

No data leaves the machine for inference. USDC on Base settles per call.

NEX x402 manifest: https://lots-dave-morgan-sized.trycloudflare.com/.well-known/x402.json
Listed in: https://github.com/xpaysh/awesome-x402 (PR #1381)
Treasury: 0x28F3D3fb24D4926BF5C35296c822d2a43D181177

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained

ResponsivenessNo issues

Resources

GitHub Repository

Need Help?

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