Mempool Space API
Crypto & BlockchainAccess Mempool Space public data through one AllAPI key — 12 endpoints across the Mempool Space surface. No Mempool Space account, no credentials, no scraping stack — one anonymous request returns real data or a documented honest error, never fabricated.
| Method | Endpoint | Operation |
|---|---|---|
| POST | /api/mempool_space/address | Address |
| POST | /api/mempool_space/blocks | Blocks |
| POST | /api/mempool_space/difficulty_adjustment | Difficulty adjustment |
| POST | /api/mempool_space/fees | Fees |
| POST | /api/mempool_space/mining_pools | Mining pools |
| GET | /api/mempool_space/signet_api_v1_blocks | Signet api v1 blocks |
| GET | /api/mempool_space/signet_api_v1_statistics_2h | Signet api v1 statistics 2h |
| GET | /api/mempool_space/testnet4_api_v1_blocks | Testnet4 api v1 blocks |
| GET | /api/mempool_space/testnet4_api_v1_statistics_2h | Testnet4 api v1 statistics 2h |
| GET | /api/mempool_space/testnet_api_v1_blocks | Testnet api v1 blocks |
| GET | /api/mempool_space/testnet_api_v1_statistics_2h | Testnet api v1 statistics 2h |
| POST | /api/mempool_space/tx | Tx |
Call the Mempool Space API in one line
Free tier — 200 credits/month, no card. One key works across all 468 platforms, 39 MCP tools and 48 composites.
Get your free key → API reference