ADEXTO MCP

The remote MCP server for ADEXTO bonding-curve token markets on 0G, Base, Arbitrum One, Monad, Robinhood Chain and Arc, plus a TypeScript kit that signs its transactions with your own key.

• Endpoint: https://adexto.xyz/api/mcp. Streamable HTTP, no account, no API key.
• 14 tools: list and price markets, read trade history, buy with USDC on Base over x402, read and open stakes, and launch, stake and claim with your own key. Full reference: TOOLS.md.
• No custody: the server never holds your key. Launch, stake and claim tools return unsigned transactions.
• Registry: xyz.adexto/mcp in the official MCP Registry.

Connect

Claude Code

claude mcp add --transport http adexto https://adexto.xyz/api/mcp

Cursor (~/.cursor/mcp.json)

{ "mcpServers": { "adexto": { "url": "https://adexto.xyz/api/mcp" } } }

VS Code (.vscode/mcp.json)

{ "servers": { "adexto": { "type": "http", "url": "https://adexto.xyz/api/mcp" } } }

Cline (see llms-install.md)

{ "mcpServers": { "adexto": { "type": "streamableHttp", "url": "https://adexto.xyz/api/mcp" } } }

Any client, or plain HTTP

curl -s https://adexto.xyz/api/mcp \
  -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_markets","arguments":{}}}'

The server is stateless. A client may call tools/list and tools/call directly, without an initialize round trip.

Tools

Tool	What it does	Cost
list_markets	Every market on every chain, with ticker, chain, curve and price	free
get_market	One market in detail: fees, supply, creator, ERC-8004 agent, how to stake it	free
quote_buy	The x402 quote for a buy, without paying	free
how_to_pay	The steps from a 402 challenge to a settled buy	free
buy_token	Buy a market with USDC on Base; delivered on the market's own chain	0.10 USDC per buy today
pay_and_buy	Operator-signed, capped demo purchase (needs an operator key header)	operator only
trade_history	Every swap on a market, and whether the answer reaches the launch block	free
check_stake	A wallet's stake in a market, read from the stake contract	free
access_message	The message to sign before ask_agent	free
ask_agent	Ask the market's agent, for an address with an active stake	free
prepare_launch	Unsigned launch transaction for your key, after a signed attestation	free; you pay gas to send it
register_launch	List a mined launch on ADEXTO	free
prepare_stake	Unsigned approval and stake transactions	free; you pay gas to send them
prepare_claim	Unsigned creator-fee claims	free; you pay gas to send them

Every tool declares an output schema and returns structuredContent alongside the JSON text. A refusal such as unknown_market or below_minimum is an ordinary answer with an error code, and nothing is spent when a tool refuses.

Paying over x402

buy_token first answers with an HTTP 402 challenge. Sign the EIP-3009 TransferWithAuthorization described in accepts[0] (USDC on Base, exact amount, ADEXTO's payee), base64-encode the x402 payload, and call buy_token again with it as xPayment. The curve on the market's own chain then sends the tokens to your address. You need USDC on Base and nothing else: no gas on Base, no gas on the destination chain, no bridge.

Delivery runs before the charge, so a failed fill is not charged. The same gateway is also reachable as plain HTTP at https://x402.adexto.xyz (OpenAPI), where x402 v2 clients such as @x402/fetch work as they are: every 402 also carries a PAYMENT-REQUIRED header, and the payment can come back in PAYMENT-SIGNATURE. Each market is listed on x402scan.

Launch, stake and claim with your own key

An LLM cannot sign, so the transaction tools stop at an unsigned transaction. The agent kit in this repository finishes the job locally:

import { createWalletClient, http } from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { monad } from "viem/chains";
import { claim, createAdextoClient, launch, stake } from "@adexto/agent-kit";

const adexto = createAdextoClient();
const wallet = createWalletClient({ account: privateKeyToAccount(KEY), chain: monad, transport: http() });

await launch({ client: adexto, wallet, name: "My Market", symbol: "MYMKT" });
await stake({ client: adexto, wallet, symbol: "MYMKT", amount: "10000" });
await claim({ client: adexto, wallet });

Before your key signs anything, the kit decodes each transaction and refuses one that does not match the request: an unknown factory or stake contract, another sender, a non-zero value, an approval for anything but the exact stake amount, or a 402 challenge above your spending cap or for another payee. See agent-kit/README.md.

The kit is not on npm yet. To use it now, clone this repository, run npm ci && npm run build in agent-kit/, then npm install /path/to/adexto-mcp/agent-kit in your project.

Repository

Path	What
TOOLS.md	Tool reference, generated from the live server by scripts/sync-tools.mjs
llms-install.md	Setup instructions for Cline and other agents
agent-kit/	@adexto/agent-kit: typed client, x402 signer, launch, stake, claim and buy helpers
assets/	Logo, 400×400 and 512×512 PNG

The server itself runs inside the ADEXTO app, because it reads the app's market registry and calls its launch stage directly. Its source is src/app/api/[transport]/route.ts in 0xcuy/adexto.

Security

Report vulnerabilities privately as described in the main repository's security policy. The MCP server, including pay_and_buy, is in its scope. Please do not open a public issue for a vulnerability.

License

Business Source License 1.1 (LICENSE), the same license as the ADEXTO app, contracts and server source in 0xcuy/adexto. You may use the documentation and the agent kit in production to build agents, apps and integrations on ADEXTO. You may not use them to run a competing token launchpad, bonding curve platform, or token launch or trading service for AI agents. On 2030-09-29 they become MIT.

The ADEXTO name and logo are not licensed by this repository. Use them only to refer to ADEXTO.