# Basescan

**Canonical:** https://apis.io/providers/basescan/  
**APIs profiled:** 10

Base L2 blockchain explorer with a REST API for querying Base network transactions, token balances, smart contract ABIs, ERC-20 transfer events, gas prices, and block data. Powered by the Etherscan team and migrated to the unified Etherscan API V2 platform, enabling access to 50+ EVM chains with a single API key using chain ID 8453 for Base.

## Kin Score — 42.3 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 42.3).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 59.4 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 60.5 |
| Access Clarity | 60.5 |

## Agent readiness — 35.0 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| 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 |

## Access

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

## APIs (10)

- **Basescan Accounts API** — The Accounts API from Basescan — 12 operation(s) for accounts.
- **Basescan API PRO Endpoints API** — The API PRO Endpoints API from Basescan — 20 operation(s) for api pro endpoints.
- **Basescan Blocks API** — The Blocks API from Basescan — 8 operation(s) for blocks.
- **Basescan Contracts API** — The Contracts API from Basescan — 5 operation(s) for contracts.
- **Basescan Gas Tracker API** — The Gas Tracker API from Basescan — 5 operation(s) for gas tracker.
- **Basescan Geth/Parity Proxy API** — The Geth/Parity Proxy API from Basescan — 14 operation(s) for geth/parity proxy.
- **Basescan Logs API** — The Logs API from Basescan — 3 operation(s) for logs.
- **Basescan Stats API** — The Stats API from Basescan — 13 operation(s) for stats.
- **Basescan Tokens API** — The Tokens API from Basescan — 9 operation(s) for tokens.
- **Basescan Transactions API** — The Transactions API from Basescan — 2 operation(s) for transactions.

## Agentic access (1)

- **Basescan Agentic Access** — 71 operations · 1 acting

## Security (2)

- **Basescan Authentication** — apiKey · 1 scheme
- **Basescan Domain Security** — TLSv1.3 · HSTS · DNSSEC

## Plans (1)

- **Plans**

## Tags

Blockchain, Base, L2, Explorer, Ethereum, EVM, Transaction, Tokens, Smart Contracts

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