Compress prose for LLM context windows. Per-call USDC billing, signed receipt.
Connect Remote server
claude mcp add --transport http nanotoll-mcp https://mcp.nanotoll.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"{
"mcpServers": {
"nanotoll-mcp": {
"url": "https://mcp.nanotoll.dev/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}{
"servers": {
"nanotoll-mcp": {
"type": "http",
"url": "https://mcp.nanotoll.dev/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}Settings > Connectors > Add custom connector
URL: https://mcp.nanotoll.dev/mcpReplace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 2 found in our last check
compressCompress prose before it enters an LLM context window. Returns the compressed text plus a signed receipt (ratios, refusals, coverage) so the caller can verify what was dropped. Use this instead of truncating or slicing text to fit a budget: truncation drops the tail silently, co…
check_balanceRead your own account and cost nothing: credit balance left, the USDC funding address to top up, key tier and expiry, and lifetime usage totals. Takes no arguments and is not billed. Call it after an HTTP 402 from compress to see the shortfall, or before a long batch to confirm…
Headers
| Name | Description |
|---|---|
AuthorizationRequired, secret | Nanotoll API key (obtain via POST https://api.nanotoll.dev/api/v1/register). Forwarded as Bearer token to the compress backend. Calls are billed in USDC on Base L2; HTTP 402 on insufficient balance. |
Details
| Endpoint | https://mcp.nanotoll.dev/mcp (Streamable HTTP) |
| First published | 27 Oct 2026 |
| Last updated | 27 Oct 2026 |
| Registry name | dev.nanotoll/nanotoll-mcp |
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