# Hiro

**Canonical:** https://apis.io/providers/hiro/  
**Website:** https://www.hiro.so/  
**APIs profiled:** 26

Hiro builds developer tooling for Bitcoin and the Stacks layer. Provides REST APIs (Stacks Blockchain API, Token Metadata API, Signer Metrics API, Chainhooks API, Platform API), Stacks Node JSON-RPC, plus the Hiro Platform for managing devnets and chainhooks.

## Kin Score — 27.7 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 27.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 53.1 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 30.6 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (26)

- **Hiro Chainhooks API** — REST API for Chainhook predicate registration and event streaming for Bitcoin and Stacks.
- **Hiro Platform API** — REST API to programmatically manage Hiro Platform devnets and chainhooks.
- **Hiro Accounts API** — Read-only endpoints to obtain Stacks account details
- **Hiro Atlas API** — Operations related to the Atlas global namespace.
- **Hiro Blocks API** — The Blocks API from Hiro — 37 operation(s) for blocks.
- **Hiro Blocks Proposals API** — The Blocks Proposals API from Hiro — 2 operation(s) for blocks proposals.
- **Hiro Burn Blocks API** — Read-only endpoints to obtain burn block details
- **Hiro Faucets API** — Endpoints to request STX or BTC tokens (not possible on Mainnet)
- **Hiro Fees API** — Read-only endpoints to obtain fee details
- **Hiro Fungible Tokens API** — The Fungible Tokens API from Hiro — 1 operation(s) for fungible tokens.
- **Hiro Info API** — Read-only endpoints to obtain network, Proof-of-Transfer, Stacking, STX token, and node information
- **Hiro Mempool API** — Endpoints to obtain Mempool information
- **Hiro Microblocks API** — Read-only endpoints to obtain microblocks details
- **Hiro Mining API** — Endpoints related to Stacks block production and mining.
- **Hiro Names API** — Read-only endpoints realted to the Blockchain Naming System on Stacks
- **Hiro Non-Fungible Tokens API** — Read-only endpoints to obtain non-fungible token details
- **Hiro Proof of Transfer API** — Endpoints to get information about the Proof of Transfer consensus mechanism
- **Hiro Search API** — Read-only endpoints to search for accounts, blocks, smart contracts, and transactions
- **Hiro Signers API** — The Signers API from Hiro — 4 operation(s) for signers.
- **Hiro Smart Contracts API** — Read-only endpoints to obtain Clarity smart contract details
- **Hiro StackerDB API** — Endpoints for interacting with StackerDB instances.
- **Hiro Stacking API** — The Stacking API from Hiro — 4 operation(s) for stacking.
- **Hiro Stacking Rewards API** — Read-only endpoints to obtain Stacking reward details
- **Hiro Status API** — Service status endpoints
- **Hiro Tokens API** — Token metadata endpoints
- **Hiro Transactions API** — Endpoints to obtain transaction details and to broadcast transactions to the network

## Agentic access (1)

- **Hiro Agentic Access** — 154 operations · 14 acting

## Security (2)

- **Hiro Authentication** — apiKey · 1 scheme
- **Hiro Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Hiro Plans Pricing**

## Tags

Web3, Blockchain, Bitcoin, Stacks, sBTC, Indexing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/hiro/). Scores are computed from the provider's own public artifacts under a published rubric.