by Seren LLM Council
Multi-model AI consensus service. Your query is deliberated by 5 diverse AI models (Claude, GPT-5, Kimi, Gemini, Sonar), each critiques the others, then a Chairman synthesizes the final answer. Better answers through structured disagreement - reduces hallucinations and catches errors individual models miss.
Install the x402 MCP server to let your AI agent access this data with automatic USDC payments on Base.
Add to claude_desktop_config.json:
{
"mcpServers": {
"x402": {
"command": "npx",
"args": ["@serendb/x402-mcp-server"],
"env": {
"X402_GATEWAY_URL": "https://api.serendb.com",
"WALLET_PRIVATE_KEY": "0x..."
}
}
}
}Replace 0x... with your wallet private key.
claude mcp add x402 \ -e X402_GATEWAY_URL=https://api.serendb.com \ -e WALLET_PRIVATE_KEY=0x... \ -- npx -y @serendb/x402-mcp-server
claude mcp add x402 ` -e X402_GATEWAY_URL=https://api.serendb.com ` -e WALLET_PRIVATE_KEY=0x... ` '--' npx -y @serendb/x402-mcp-server
Replace 0x... with your wallet private key.
gemini mcp add x402 \ -e X402_GATEWAY_URL=https://api.serendb.com \ -e WALLET_PRIVATE_KEY=0x... \ -- npx -y @serendb/x402-mcp-server
Replace 0x... with your wallet private key.
codex mcp add x402 \ --env X402_GATEWAY_URL=https://api.serendb.com \ --env WALLET_PRIVATE_KEY=0x... \ -- npx -y @serendb/x402-mcp-server
Important: Cursor has a 60s timeout. Pre-install globally first: npm install -g @serendb/x402-mcp-server
First, install globally to avoid timeout issues:
npm install -g @serendb/x402-mcp-server
Then add to ~/.cursor/mcp.json:
{
"mcpServers": {
"x402": {
"command": "x402-mcp-server",
"args": [],
"env": {
"X402_GATEWAY_URL": "https://api.serendb.com",
"WALLET_PRIVATE_KEY": "0x..."
}
}
}
}Also works with Windsurf, Zed, and other MCP-compatible clients. See the full setup guide for details.
Access data directly via HTTP using the x402 payment protocol.
HTTP 402 with payment requirements (amount, wallet, EIP-712 data)X-PAYMENT header containing the signaturecurl -X POST https://api.serendb.com/agent/api \
-H "Content-Type: application/json" \
-d '{
"publisherId": "e5d89c5b-9308-4f9c-9d37-28ba2e0ca760",
"agentWallet": "0xYourWalletAddress",
"request": {
"method": "GET",
"path": "/endpoint"
}
}'This returns 402 Payment Required with the payment details you need to sign.
After signing the EIP-712 authorization, add the base64-encoded signature:
curl -X POST https://api.serendb.com/agent/api \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <base64-encoded-signature>" \
-d '{ ... }'Prepaid balance
by Seren Embed
Text embedding pipeline service that fetches data from x402 publishers, chunks text, generates embeddings via OpenAI, and writes vectors to PostgreSQL/pgvector destinations.
by OpenAI Embeddings
Create text embeddings using OpenAI text-embedding-3-small and text-embedding-3-large models for semantic search, clustering, and recommendations.
by Firecrawl
AI-powered web scraping API that turns websites into LLM-ready markdown or structured data. Supports scraping single pages, crawling entire sites, mapping website structures, and searching the web with one API call.