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The Afterbell API
Liquidations, both heatmaps, the largest positions and the stock-perp calendar as JSON, with one key from a wallet signature, and an MCP server for AI assistants.
The data behind the app as JSON: confirmed liquidations, both heatmaps for every market, the largest positions and accounts, the whale moves, vaults, and every stock perp’s sessions, closes and earnings. The developers page lists every endpoint, lets you try each one and shows its answer and code to copy.
Plans
- Free: 30 requests a minute, no key needed, for your own use.
- API: 1,200 requests a minute, for code that serves other people: $149 a month or $1,490 a year, in USDC from your Hyperliquid balance with one signature. The plan is read from your own Hyperliquid ledger, and nothing renews by itself.
Getting a key
- Connect your wallet on the developers page.
- Sign once (no funds move): the key appears, tied to that wallet. Keep it secret, since anyone holding it uses your plan.
- Send it as a header:
Authorization: Bearer YOUR_KEY.
For AI assistants: MCP
Every endpoint is also a tool on Afterbell’s MCP server, for Claude, Cursor or any client that speaks MCP. Add it to the client’s configuration:
{ "mcpServers": { "afterbell": { "url": "https://afterbell.pro/v1/mcp" } } }Tools: markets, market, sessions, funding, earnings, macro, liquidations, whales, traders, finding, vaults, leaders, fees and race. A key raises the rate limit the same way, as a Bearer header. The guide has questions to ask.
The API serves data, not orders: it cannot trade for anyone. Credit Afterbell where you show it.