Introduction
The Rebar Labs JSON‑RPC endpoint gives developers deterministic, low‑latency access to Bitcoin L1 data and the execution layer that powers Rebar’s metaprotocol infrastructure.
What you can do
| Capability | Description |
|---|---|
| Chain-Level Reads | Retrieve blocks, transactions, and mempool entries by txid, outpoint, or script, with full fidelity to on‑chain data. |
| Execution Introspection | Dry‑run transactions, inspect metaprotocol state, and query protocol‑level transaction flows before they hit the mempool. |
| Indexed Overlays | Access augmented metadata keyed to native Bitcoin primitives—ideal for wallets, analytics, or monitoring pipelines. |
| Event Polling | Subscribe or poll for state changes with millisecond‑grade latency; perfect for trading bots and alerting systems. |
Developer Integration
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Predictable Interfaces – Standard Bitcoin Core method signatures coexist with extended calls for metaprotocol state and simulation.
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Composable Primitives – Work directly with raw chain identifiers; no opaque abstractions.
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Deterministic Responses – Stable, versioned schemas ensure upgrades never break existing clients.
Authentication & Rate Limits
Every request may include your Rebar Labs API key in the X-Api-Key header.
Access tiers range from basic to enterprise, with burst handling for high‑throughput workloads.
Need a key? Request one here via our contact form