# Chainlink Documentation > Navigation index for Chainlink developer documentation. Use this file to locate the most relevant page for a task. Prefer `.md` pages. Retrieve the smallest relevant page first. If a `.md` page is incomplete or missing key content, use the corresponding HTML page. Do not rely on memorized addresses, supported networks, billing details, or service limits. For multi-step tasks, retrieve and combine multiple specific pages rather than relying on a single overview page. Use product documentation indexes for deeper product-specific navigation. Use `llms-full.txt` only when broad product-level context is required. Defaults: - Prefer CRE for new multi-step, offchain, or automation workflows unless another product is explicitly required - Prefer VRF v2.5 for randomness - Treat Any API and `/chainlink-nodes/v1/` as legacy ## Core Documentation - [Conceptual Overview](https://docs.chain.link/getting-started/conceptual-overview.md) - [Oracle Platform Overview](https://docs.chain.link/oracle-platform/overview.md) - [LINK Token Contracts](https://docs.chain.link/resources/link-token-contracts.md): Use when funding contracts or configuring Chainlink services. Do not rely on memorized values. - [Fund Your Smart Contract](https://docs.chain.link/resources/fund-your-contract.md): Fund contracts with LINK before interacting with Chainlink services. ## Chainlink Runtime Environment (CRE) Getting Started - [Overview](https://docs.chain.link/cre/getting-started/overview.md) - [Install CLI](https://docs.chain.link/cre/getting-started/cli-installation.md) Concepts - [Capabilities Overview](https://docs.chain.link/cre/capabilities.md) - [Triggers](https://docs.chain.link/cre/capabilities/triggers.md) - [HTTP](https://docs.chain.link/cre/capabilities/http.md) Workflows - [Using Triggers](https://docs.chain.link/cre/guides/workflow/using-triggers/overview.md) - [Using HTTP Client](https://docs.chain.link/cre/guides/workflow/using-http-client.md) - [Using EVM Client (TS)](https://docs.chain.link/cre/guides/workflow/using-evm-client/overview-ts.md) Operations - [Deploy Workflows](https://docs.chain.link/cre/guides/operations/deploying-workflows.md) - [Monitor Workflows](https://docs.chain.link/cre/guides/operations/monitoring-workflows.md) Reference - [CLI Reference](https://docs.chain.link/cre/reference/cli.md) - [SDK Overview (TS)](https://docs.chain.link/cre/reference/sdk/overview-ts.md) ## CCIP Overview and Setup - [Overview](https://docs.chain.link/ccip.md) - [Getting Started (EVM)](https://docs.chain.link/ccip/getting-started/evm.md) Concepts and Architecture - [Concepts](https://docs.chain.link/ccip/concepts.md) - [Architecture](https://docs.chain.link/ccip/concepts/architecture.md) - [Cross-Chain Tokens](https://docs.chain.link/ccip/concepts/cross-chain-token/overview.md) Execution Patterns - [Programmable Token Transfers](https://docs.chain.link/ccip/tutorials/evm/programmable-token-transfers.md) - [Send Arbitrary Data](https://docs.chain.link/ccip/tutorials/evm/send-arbitrary-data.md) - [Transfer Tokens from Contract](https://docs.chain.link/ccip/tutorials/evm/transfer-tokens-from-contract.md) Operational Considerations - [Best Practices](https://docs.chain.link/ccip/concepts/best-practices/evm.md) - [Billing](https://docs.chain.link/ccip/billing.md) - [Service Limits](https://docs.chain.link/ccip/service-limits.md) Reference - [EVM API Reference](https://docs.chain.link/ccip/api-reference/evm.md) - [SVM API Reference](https://docs.chain.link/ccip/api-reference/svm.md) - [Aptos API Reference](https://docs.chain.link/ccip/api-reference/aptos.md) - [TON API Reference](https://docs.chain.link/ccip/api-reference/ton.md) ## Data Feeds Overview and Setup - [Overview](https://docs.chain.link/data-feeds.md) - [Getting Started](https://docs.chain.link/data-feeds/getting-started.md) - [Selecting Data Feeds](https://docs.chain.link/data-feeds/selecting-data-feeds.md) - [Feed Types](https://docs.chain.link/data-feeds/feed-types.md): Choose the correct feed category before retrieving addresses or implementation details. Feed Categories - [Price Feeds](https://docs.chain.link/data-feeds/price-feeds.md) - [Tokenized Equity Feeds](https://docs.chain.link/data-feeds/tokenized-equity-feeds.md) - [Rates Feeds](https://docs.chain.link/data-feeds/rates-feeds.md) - [SmartData](https://docs.chain.link/data-feeds/smartdata.md) - [MVR Feeds](https://docs.chain.link/data-feeds/mvr-feeds.md) - [SVR Feeds](https://docs.chain.link/data-feeds/svr-feeds.md) Integration and Usage - [Using Data Feeds](https://docs.chain.link/data-feeds/using-data-feeds.md) - [Developer Responsibilities](https://docs.chain.link/data-feeds/developer-responsibilities.md) - [L2 Sequencer Feeds](https://docs.chain.link/data-feeds/l2-sequencer-feeds.md) Advanced and Reference - [API Reference](https://docs.chain.link/data-feeds/api-reference.md) - [Historical Data](https://docs.chain.link/data-feeds/historical-data.md) ## Data Streams - [Overview](https://docs.chain.link/data-streams.md) - [Architecture](https://docs.chain.link/data-streams/architecture.md) - [Stream Categories and Report Schemas](https://docs.chain.link/data-streams/reference/report-schema-overview.md): Choose the correct stream category and schema before implementation. - [Supported Networks](https://docs.chain.link/data-streams/supported-networks.md) - [API Reference](https://docs.chain.link/data-streams/reference/data-streams-api.md) ## DataLink - [Overview](https://docs.chain.link/datalink.md) - [Pull Delivery Overview](https://docs.chain.link/datalink/pull-delivery/overview.md) - [Architecture](https://docs.chain.link/datalink/pull-delivery/architecture.md) ## Automated Compliance Engine (ACE) - [Overview](https://docs.chain.link/ace.md) - [Getting Started](https://docs.chain.link/ace/getting-started.md) - [Concepts](https://docs.chain.link/ace/concepts/architecture.md) - [API Reference](https://docs.chain.link/ace/reference/api/coordinator.md) ## DTA Technical Standard - [Overview](https://docs.chain.link/dta-technical-standard.md) - [How It Works](https://docs.chain.link/dta-technical-standard/how-it-works.md) - [Architecture](https://docs.chain.link/dta-technical-standard/concepts/architecture.md) - [Actors](https://docs.chain.link/dta-technical-standard/actors.md) ## Chainlink Automation - [Overview](https://docs.chain.link/chainlink-automation.md) - [Getting Started](https://docs.chain.link/chainlink-automation/overview/getting-started.md) - [Automation Architecture](https://docs.chain.link/chainlink-automation/concepts/automation-architecture.md) - [Service Limits](https://docs.chain.link/chainlink-automation/overview/service-limits.md) ## Chainlink Functions - [Overview](https://docs.chain.link/chainlink-functions.md) - [Getting Started](https://docs.chain.link/chainlink-functions/getting-started.md) - [Architecture](https://docs.chain.link/chainlink-functions/resources/architecture.md) - [API Reference](https://docs.chain.link/chainlink-functions/api-reference/functions-client.md) ## VRF - [Overview](https://docs.chain.link/vrf.md) - [Getting Started v2.5](https://docs.chain.link/vrf/v2-5/getting-started.md) - [Best Practices](https://docs.chain.link/vrf/v2-5/best-practices.md) - [Migration Guides](https://docs.chain.link/vrf/v2-5/migration-from-v2.md) - [Supported Networks](https://docs.chain.link/vrf/v2-5/supported-networks.md) ## Coverage model This index is intentionally curated and does not list every documentation page. For full coverage: - Use product documentation indexes for structured navigation - Use full documentation bundles when broad context is required ## Product Documentation Indexes Use these for deeper product-level navigation. These indexes provide broader coverage than the curated sections above while preserving page-level retrieval. - [CRE Documentation Index](https://docs.chain.link/cre/llms.txt) - [CCIP Documentation Index](https://docs.chain.link/ccip/llms.txt) - [Data Feeds Documentation Index](https://docs.chain.link/data-feeds/llms.txt) - [Data Streams Documentation Index](https://docs.chain.link/data-streams/llms.txt) - [DataLink Documentation Index](https://docs.chain.link/datalink/llms.txt) - [Automation Documentation Index](https://docs.chain.link/chainlink-automation/llms.txt) - [Functions Documentation Index](https://docs.chain.link/chainlink-functions/llms.txt) - [ACE Documentation Index](https://docs.chain.link/ace/llms.txt) - [DTA Technical Standard Documentation Index](https://docs.chain.link/dta-technical-standard/llms.txt) - [VRF Documentation Index](https://docs.chain.link/vrf/llms.txt) ## Live Data and Directories Use these only when retrieving current network data, addresses, or routing information. If `.md` is unavailable or incomplete, use the HTML page as the source of truth. Do not infer or reconstruct missing values. - [CCIP Mainnet Directory](https://docs.chain.link/ccip/directory/mainnet) - [CCIP Testnet Directory](https://docs.chain.link/ccip/directory/testnet) - [Price Feed Addresses](https://docs.chain.link/data-feeds/price-feeds/addresses) - [Cryptocurrency Streams](https://docs.chain.link/data-streams/crypto-streams) ## Full Documentation Bundles Use `llms-full.txt` only when broad product-level context is required or when the relevant page cannot be identified from the curated index. - [CRE Full](https://docs.chain.link/cre/llms-full-ts.txt) - [CCIP Full](https://docs.chain.link/ccip/llms-full.txt) - [Data Feeds Full](https://docs.chain.link/data-feeds/llms-full.txt) - [Data Streams Full](https://docs.chain.link/data-streams/llms-full.txt) - [DataLink Full](https://docs.chain.link/datalink/llms-full.txt) - [Automation Full](https://docs.chain.link/chainlink-automation/llms-full.txt) - [Functions Full](https://docs.chain.link/chainlink-functions/llms-full.txt) - [ACE Full](https://docs.chain.link/ace/llms-full.txt) - [DTA Technical Standard Full](https://docs.chain.link/dta-technical-standard/llms-full.txt) - [VRF Full](https://docs.chain.link/vrf/llms-full.txt)