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Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.
About
Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.
Remote endpoints: streamable-http: https://agents.dexl.io/mcp
Security Report
Valid MCP server (1 strong, 0 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
5 tools verified · Open access · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Found in Source Code
Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-dexl-io-agents": {
"url": "https://agents.dexl.io/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Pay an API with x402 — in about ten lines
x402 is HTTP 402 put to work: a server answers 402 Payment Required
with the exact price, the client signs a stablecoin payment and repeats the same request.
No account, no API key, no invoice.
These examples call DexL Agents, an x402 gateway (chat models, speech, web search and crawl, on-chain reads, FX rates, NLP tools). Everything here works against any x402 server — only the URL changes.
1. Free: no wallet at all
npm install
npm run free
free.mjs does two things:
- calls the free tier (
model: "dexl-free") — no payment header, no wallet, no account; - asks what a paid call would cost by sending it without payment and reading the 402.
Real output:
free answer: HTTP 402 (Payment Required) is a non-standardized status code reserved for future use...
web-search costs 0.01 USDC on eip155:8453 (HTTP 402)
2. Paid: one call, one signature
PRIVATE_KEY=0x... npm run paid
The payment is these three lines; after them it is ordinary fetch:
const signer = toClientEvmSigner(wallet);
const client = new x402Client().register('eip155:8453', new ExactEvmScheme(signer));
const fetchWithPay = wrapFetchWithPayment(fetch, client);
Your key stays on your machine — the server only ever sees a signed payment. Settles in USDC on Base, Polygon, Arbitrum or Solana. Error responses are not charged.
The free example above was run as-is. The paid one needs your own funded wallet, so run it yourself with a small balance; it uses the same client our own service uses.
3. Connect an MCP client
Remote (free tools only — a remote server holds no wallet of yours):
https://agents.dexl.io/mcp
Local, with paid tools, because the wallet stays on your machine:
{
"mcpServers": {
"dexl": {
"command": "npx",
"args": ["-y", "dexl-agents", "mcp"],
"env": { "DEXL_BASE_URL": "https://agents.dexl.io", "DEXL_PRIVATE_KEY": "<optional>" }
}
}
}
What you can call
GET /v1/tools lists every tool with its price and schema.
Machine-readable: /llms.txt ·
/openapi.json ·
/.well-known/x402 ·
/.well-known/mcp
MIT licensed. Issues and pull requests welcome.
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