# Blockscout Developer Portal > Blockscout Developer Portal provides access to Blockscout PRO API — an enhanced API service > with higher call limits for Blockscout-hosted blockchain networks. ## Access - Registration and API key management: https://dev.blockscout.com - API key format: `proapi_xxxxxxxx` - Authentication: `Authorization: Bearer ` header on every request ## Agent Skill For code-generating agents, the canonical way to start building against the PRO API is the `web3-dev` agent skill. It provides the full OpenAPI endpoint index, canonical Bearer-token authentication, CDN-required request headers, a JSON-RPC gateway for contract reads, pagination cursor mechanics, and per-call credit accounting — covering details that this document only summarises. - [blockscout/agent-skills](https://github.com/blockscout/agent-skills/blob/main/README.md): Installation instructions for all supported agent platforms ## Plans To get current plan details (pricing, rate limits, credits), call the plans API: ``` curl https://api.blockscout.com/api/json/plans ``` To check current balance and credits spent, call the user profile API: ``` curl https://api.blockscout.com/api/json/users/me ``` Note: both endpoints require authorization on the developer portal (https://dev.blockscout.com). ### Enterprise Custom - Custom pricing - Improved SLA - Personal support - Scaling and reporting ## Documentation - [Blockscout Developer Portal](https://dev.blockscout.com): Registration, API key management, usage statistics - [PRO API Overview](https://docs.blockscout.com/devs/pro-api.md): PRO API documentation - [API Documentation](https://docs.blockscout.com/devs/apis): Comprehensive API guides - [ETH RPC API](https://docs.blockscout.com/devs/apis/rpc/eth-rpc.md): Standard Ethereum JSON-RPC methods - [JSON RPC API](https://docs.blockscout.com/devs/apis/rpc.md): Blockscout JSON RPC with modules - [REST API](https://docs.blockscout.com/devs/apis/rest.md): RESTful API endpoints ## Optional - [Account Module](https://docs.blockscout.com/devs/apis/rpc/account.md): Account-related RPC methods - [Block Module](https://docs.blockscout.com/devs/apis/rpc/block.md): Block data RPC methods - [Contract Module](https://docs.blockscout.com/devs/apis/rpc/contract.md): Smart contract RPC methods - [Logs Module](https://docs.blockscout.com/devs/apis/rpc/logs.md): Event logs RPC methods - [Stats Module](https://docs.blockscout.com/devs/apis/rpc/stats.md): Statistics RPC methods - [Token Module](https://docs.blockscout.com/devs/apis/rpc/token.md): Token data RPC methods - [Transaction Module](https://docs.blockscout.com/devs/apis/rpc/transaction.md): Transaction RPC methods