Pay-per-call crypto sentiment API over x402. News sentiment from 9 outlets plus the Fear & Greed Index. USDC on Base, no signup.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add crypto-sentiment-x402 --env CDP_API_KEY_ID='<CDP_API_KEY_ID>' --env CDP_API_KEY_SECRET='<CDP_API_KEY_SECRET>' -- uvx crypto-sentiment-x402-mcp~/.codex/config.toml
[mcp_servers.crypto-sentiment-x402]
command = "uvx"
args = ["crypto-sentiment-x402-mcp"]
env = { CDP_API_KEY_ID = "<CDP_API_KEY_ID>", CDP_API_KEY_SECRET = "<CDP_API_KEY_SECRET>" }
# codex mcp add crypto-sentiment-x402 --env CDP_API_KEY_ID='<CDP_API_KEY_ID>' --env CDP_API_KEY_SECRET='<CDP_API_KEY_SECRET>' -- uvx crypto-sentiment-x402-mcp~/.cursor/mcp.json
{
"mcpServers": {
"crypto-sentiment-x402": {
"command": "uvx",
"args": [
"crypto-sentiment-x402-mcp"
],
"env": {
"CDP_API_KEY_ID": "<CDP_API_KEY_ID>",
"CDP_API_KEY_SECRET": "<CDP_API_KEY_SECRET>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"crypto-sentiment-x402": {
"type": "stdio",
"command": "uvx",
"args": [
"crypto-sentiment-x402-mcp"
],
"env": {
"CDP_API_KEY_ID": "<CDP_API_KEY_ID>",
"CDP_API_KEY_SECRET": "<CDP_API_KEY_SECRET>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"crypto-sentiment-x402": {
"command": "uvx",
"args": [
"crypto-sentiment-x402-mcp"
],
"env": {
"CDP_API_KEY_ID": "<CDP_API_KEY_ID>",
"CDP_API_KEY_SECRET": "<CDP_API_KEY_SECRET>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"crypto-sentiment-x402": {
"command": "uvx",
"args": [
"crypto-sentiment-x402-mcp"
],
"env": {
"CDP_API_KEY_ID": "<CDP_API_KEY_ID>",
"CDP_API_KEY_SECRET": "<CDP_API_KEY_SECRET>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"crypto-sentiment-x402": {
"command": "uvx",
"args": [
"crypto-sentiment-x402-mcp"
],
"env": {
"CDP_API_KEY_ID": "<CDP_API_KEY_ID>",
"CDP_API_KEY_SECRET": "<CDP_API_KEY_SECRET>"
}
}
}
}Environment variables
CDP_API_KEY_IDCDP_API_KEY_SECRET
Replace the placeholders with your own credentials and keep them out of version control.