fixed Covalent doc

docs/integrations/indexers/cobalent.md

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+
+# Covalent Indexing and Querying API
+[Covalent](https://www.covalenthq.com/?utm_source=astar&utm_medium=partner-docs) is a hosted blockchain data solution providing access to historical and current on-chain data for 100+ supported blockchains, including [Astar](https://www.covalenthq.com/docs/networks/astar/?utm_source=astar&utm_medium=partner-docs).
+
+Covalent maintains a full archival copy of every supported blockchain, meaning every balance, transaction, log event, and NFT asset data is available from the genesis block. This data is available via:
+
+1. [Unified API](#unified-api) - Incorporate blockchain data into your app with a familiar REST API
+2. [Increment](#increment) - Create and embed custom charts with no-code analytics
+
+**Use Covalent if you need:**
+* Structured and enhanced on-chain data well beyond what you get from RPC providers
+* Broad and deep multi-chain data at scale
+* Enterprise-grade performance
+
+> **[Sign up to start building on Astar](https://www.covalenthq.com/platform/?utm_source=astar&utm_medium=partner-docs)**
+
+ 
+## Unified API
+
+[![example-api-response-json](https://www.datocms-assets.com/86369/1686098284-example-api-response-json-astar.png)](https://www.covalenthq.com/docs/api/balances/get-token-balances-for-address/?utm_source=astar&utm_medium=partner-docs)
+
+The Covalent API is RESTful and offers the following for Astar:
+
+| **Features**| |
+|---|---|
+| Response Formats | JSON, CSV |
+| Real-Time Data Latency | 2 blocks |
+| Batch Data Latency | 30 minutes |
+| Supported Network: `chainName`, `chainId` | Mainnet: `astar-mainnet`, `592`  Testnet: `astar-shibuya`, `81` |
+| API Tiers | [Free tier](https://www.covalenthq.com/docs/unified-api/pricing/?utm_source=astar&utm_medium=partner-docs#free-tier)  [Premium tier](https://www.covalenthq.com/docs/unified-api/pricing/?utm_source=astar&utm_medium=partner-docs#premium-tier) |
+| API Categories | [Balances](https://www.covalenthq.com/docs/api/balances/get-token-balances-for-address/?utm_source=astar&utm_medium=partner-docs)  [NFTs](https://www.covalenthq.com/docs/api/nft/get-nfts-for-address/?utm_source=astar&utm_medium=partner-docs)  [Transactions](https://www.covalenthq.com/docs/api/transactions/get-transactions-for-address/?utm_source=astar&utm_medium=partner-docs)  [Security](https://www.covalenthq.com/docs/api/security/get-token-approvals-for-address/?utm_source=astar&utm_medium=partner-docs)  [Log Events & Others](https://www.covalenthq.com/docs/api/base/get-log-events-by-contract-address/?utm_source=astar&utm_medium=partner-docs)
+
+### Get started
+- [API Key](https://www.covalenthq.com/platform/?utm_source=astar&utm_medium=partner-docs) - sign up for free
+- [Quickstart](https://www.covalenthq.com/docs/unified-api/quickstart/?utm_source=astar&utm_medium=partner-docs) - summary of key resources to get you building immediately on blockchain
+- [API Reference](https://www.covalenthq.com/docs/api/?utm_source=astar&utm_medium=partner-docs) - try all the endpoints directly from your browser
+- [Guides](https://www.covalenthq.com/docs/unified-api/guides/?utm_source=astar&utm_medium=partner-docs) - learn how to build dapps, fetch data and extend your Web3 knowledge
+
+## Increment
+
+[![example-increment-chart](https://www.datocms-assets.com/86369/1684974544-increment-example-partner-docs.png)](https://www.covalenthq.com/platform/increment/#/?utm_source=astar&utm_medium=partner-docs)
+
+Increment is a novel no-code charting and reporting tool powered by Covalent, revolutionizing how the Web3 space approaches analytics. Many analytics tools let you write SQL to create charts, but *Increment is the only one to encode business logic - Reach, Retention, and Revenue - into an SQL compiler that can write valid SQL for you.*
+
+### Use cases
+Increment can be used for:
+
+- [Analyzing Blockchain Networks](https://www.covalenthq.com/docs/increment/data-models/chain-gdp/?utm_source=astar&utm_medium=partner-docs)
+- [Analyzing DEXs](https://www.covalenthq.com/docs/increment/data-models/swap-land/?utm_source=astar&utm_medium=partner-docs)
+- [Analyzing NFT Marketplaces](https://www.covalenthq.com/docs/increment/data-models/jpeg-analysis/?utm_source=astar&utm_medium=partner-docs)
+
+For example, click on the following table to get the latest number of active wallets, transactions and tokens by day, week, month or year for Astar:
+[![example-network-status-increment-ftm](https://www.datocms-assets.com/86369/1686100924-example_network_status_increment_general.png)](https://www.covalenthq.com/docs/networks/astar/?utm_source=astar&utm_medium=partner-docs#network-status)
+
+
+### Get started
+
+- [Increment](https://www.covalenthq.com/platform/increment/#/?utm_source=astar&utm_medium=partner-docs) - login via the Covalent Platform
+- [Docs](https://www.covalenthq.com/docs/increment/?utm_source=astar&utm_medium=partner-docs) - learn how to use Increment to build dynamic, custom charts
+- [Data Models Demo](https://www.covalenthq.com/docs/increment/data-models/model-intro/?utm_source=astar&utm_medium=partner-docs) - build analytics in 3 clicks
+- [Explore Models. Seek Alpha.](https://www.covalenthq.com/platform/increment/#/pages/covalent/chain-gdp/?utm_source=astar&utm_medium=partner-docs) - browse all data models
+- [Use Models. Become Alpha.](https://www.covalenthq.com/platform/increment/#/sql/query_b6c88fd8604f49d5920ca86fa7/?utm_source=astar&utm_medium=partner-docs) - use a data model