# Mezo

**Canonical:** https://apis.io/providers/mezo/  
**Website:** https://mezo.org  
**APIs profiled:** 2

Mezo is Bitcoin's economic layer — a Cosmos SDK-based appchain with full EVM compatibility, built by Thesis (creators of tBTC, Fold, and Taho). It lets Bitcoiners borrow, lend, spend, save, and earn yield without selling their BTC: BTC is used natively for gas, tBTC provides reliable bridging, and MUSD is a Bitcoin-backed stablecoin pegged 1:1 to the U.S. dollar. The chain runs the mezod reference client (forked from Evmos) on CometBFT consensus with a dual-staking model, and exposes Ethereum JSON-RPC, Cosmos REST/gRPC + CometBFT RPC, and a Blockscout explorer API. Developers deploy Solidity contracts with Hardhat or Foundry against mainnet EVM chain ID 31612 and testnet 31611, and can accept MUSD payments over the x402 (HTTP 402) protocol.

## Kin Score — 33.8 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+1.1 from 32.7).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 0.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 44.7 |
| Developer Ergonomics | 59.5 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 2.6 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (2)

- **Mezo Chain EVM JSON-RPC** — EVM-compatible Ethereum JSON-RPC interface to the Mezo chain (eth_* methods) for reading chain state and submitting transactions. Mainnet EVM chain ID 31612, testnet 31611; BTC ...
- **Mezo Block Explorer API** — Blockscout REST + JSON-RPC API for the Mezo chain explorer — blocks, transactions, addresses, tokens, and verified smart-contract data.

## Security (2)

- **Mezo Domain Security** — TLSv1.3 · DMARC
- **Mezo Vulnerability Disclosure** — security.txt · contact published

## Tags

Company, Crypto Web3, Blockchain, Bitcoin, DeFi, EVM, Cosmos SDK, Stablecoins, JSON-RPC, Layer 2

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