# Zerion

**Canonical:** https://apis.io/providers/zerion/  
**Website:** https://developers.zerion.io/  
**APIs profiled:** 9

Zerion is an Ethereum and Solana wallet and developer platform focused on making onchain data easy to use. The Zerion API delivers clean, normalized wallet data, token analytics, DeFi positions, transaction history, PnL, NFTs, gas prices, swap and bridge quotes, and real-time transaction webhooks across EVM chains and Solana. The same infrastructure powers the Zerion wallet app used by millions. It is a JSON:API REST service with HTTP Basic (API key) authentication plus pay-per-request x402 (Base/Solana USDC) and MPP (Tempo USDC) options aimed at AI agents, an open-source CLI, six packaged agent skills, a hosted MCP server, and Kafka streaming for high-throughput pipelines.

## Kin Score — 62.4 / 100 (strong)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 62.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 70.8 |
| Governance | 11.5 |
| Operational Transparency | 68.4 |
| Developer Ergonomics | 75.5 |
| Commercial Clarity | 76.3 |

Regulatory layer — **Payments**: 39.1 (matched via tags).

## Agent readiness — 57.9 (agent-ready)

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

## Access

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

## APIs (9)

- **Zerion chains API** — Operations related to chains, such as list all chains.
- **Zerion dapps API** — Operations related to decentralized applications, such as list them all, search or get by ID.
- **Zerion fungibles API** — Operations related to fungible assets, such as list them all, search or get by ID.
- **Zerion gas API** — Operations related to gas.
- **Zerion nfts API** — Operations related to non fungible assets, such list them, search or get by ID.
- **Zerion subscriptions to transactions API** — Operations related to subscriptions to transactions.
- **Zerion swap API** — Operations related to swapping and bridging assets.
- **Zerion wallet sets API** — Operations on a wallet set — aggregated portfolio data across at most one EVM address and one Solana address queried together.
- **Zerion wallets API** — Operations related to wallets, such as portfolio charts, positions, and transactions.

## MCP servers (1)

- **zerion-mcp.yml**

## Agentic access (1)

- **Zerion Agentic Access** — 39 operations · 8 acting · 1 human-in-the-loop

## Security (2)

- **Zerion Authentication** — http · 1 scheme
- **Zerion Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Zerion Plans**

## Tags

Company, Web3, Blockchain, Cryptocurrency, DeFi, Wallet, NFT, Ethereum, Solana, Portfolio, Onchain Data, Transactions

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