aid: 0x url: https://raw.githubusercontent.com/api-evangelist/0x/refs/heads/main/apis.yml name: 0x kind: company description: >- 0x is the institutional-grade DEX aggregation and crypto liquidity infrastructure platform that powers token swaps inside hundreds of consumer wallets, exchanges, and onchain apps. The 0x API surface aggregates 150+ liquidity sources — public AMMs and exclusive professional market makers — across 20+ EVM chains, exposing four primary products: the Swap API (AllowanceHolder and Permit2 flows) for on-chain swaps, the Gasless API for swaps with no native gas token, the Cross-Chain API for any-token any-chain bridging across 16+ providers, and the Trade Analytics API for monetisation and reporting. Settlement is performed by the 0x Settler smart contracts using the Permit2 standard, and integrators get a unified API key, a TypeScript SDK, an official Agent Skill, and an MCP server for AI-assisted development. accessModel: pricing: freemium onboarding: self-serve trial: false try_now: true public: false label: Freemium · Self-serve signup confidence: high source: - plans - authentication generated: '2026-07-22' method: derived image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/0x.png tags: - Cryptocurrency - DeFi - DEX Aggregator - Swap - Gasless - Cross-Chain - Permit2 - Liquidity - Trade Analytics - Web3 - Settlement - Smart Contracts created: '2026-05-28' modified: '2026-05-30' specificationVersion: '0.20' x-source: public-apis/public-apis x-category: Cryptocurrency x-tier: 1 x-type: company apis: - aid: 0x:0x-cross-chain-api name: 0x Cross-Chain API description: Cross-Chain API endpoints humanURL: https://0x.org/products/swap baseURL: https://api.0x.org tags: - Cross-Chain properties: - type: OpenAPI url: openapi/0x-cross-chain-api-openapi.yml - type: Documentation url: https://docs.0x.org/0x-swap-api/introduction - type: Signup url: https://dashboard.0x.org/create-account - type: SDKs url: https://github.com/0xProject/0x-swap-ts-sdk-migration - type: CodeExamples url: >- https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry - type: Tutorials url: https://docs.0x.org/0x-swap-api/guides/swap-tokens-with-0x-swap-api - type: Documentation url: https://docs.0x.org/gasless-api/introduction - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-erc4337-smart-account - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot - type: Documentation url: https://docs.0x.org/cross-chain-api/introduction - type: Signup url: https://0x.org/products/cross-chain - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-streaming-next-app - type: Documentation url: https://docs.0x.org/trade-analytics-api - type: Documentation url: https://docs.0x.org/api-reference - aid: 0x:0x-gasless-api name: 0x Gasless API description: Gasless API endpoints humanURL: https://0x.org/products/swap baseURL: https://api.0x.org tags: - Gasless properties: - type: OpenAPI url: openapi/0x-gasless-api-openapi.yml - type: Documentation url: https://docs.0x.org/0x-swap-api/introduction - type: Signup url: https://dashboard.0x.org/create-account - type: SDKs url: https://github.com/0xProject/0x-swap-ts-sdk-migration - type: CodeExamples url: >- https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry - type: Tutorials url: https://docs.0x.org/0x-swap-api/guides/swap-tokens-with-0x-swap-api - type: Documentation url: https://docs.0x.org/gasless-api/introduction - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-erc4337-smart-account - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot - type: Documentation url: https://docs.0x.org/cross-chain-api/introduction - type: Signup url: https://0x.org/products/cross-chain - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-streaming-next-app - type: Documentation url: https://docs.0x.org/trade-analytics-api - type: Documentation url: https://docs.0x.org/api-reference - aid: 0x:0x-sources-api name: 0x Sources API description: Sources API endpoints humanURL: https://0x.org/products/swap baseURL: https://api.0x.org tags: - Sources properties: - type: OpenAPI url: openapi/0x-sources-api-openapi.yml - type: Documentation url: https://docs.0x.org/0x-swap-api/introduction - type: Signup url: https://dashboard.0x.org/create-account - type: SDKs url: https://github.com/0xProject/0x-swap-ts-sdk-migration - type: CodeExamples url: >- https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry - type: Tutorials url: https://docs.0x.org/0x-swap-api/guides/swap-tokens-with-0x-swap-api - type: Documentation url: https://docs.0x.org/gasless-api/introduction - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-erc4337-smart-account - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot - type: Documentation url: https://docs.0x.org/cross-chain-api/introduction - type: Signup url: https://0x.org/products/cross-chain - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-streaming-next-app - type: Documentation url: https://docs.0x.org/trade-analytics-api - type: Documentation url: https://docs.0x.org/api-reference - aid: 0x:0x-swap-api name: 0x Swap API description: Swap API endpoints humanURL: https://0x.org/products/swap baseURL: https://api.0x.org tags: - Swap properties: - type: OpenAPI url: openapi/0x-swap-api-openapi.yml - type: Documentation url: https://docs.0x.org/0x-swap-api/introduction - type: Signup url: https://dashboard.0x.org/create-account - type: SDKs url: https://github.com/0xProject/0x-swap-ts-sdk-migration - type: CodeExamples url: >- https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry - type: Tutorials url: https://docs.0x.org/0x-swap-api/guides/swap-tokens-with-0x-swap-api - type: Documentation url: https://docs.0x.org/gasless-api/introduction - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-erc4337-smart-account - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot - type: Documentation url: https://docs.0x.org/cross-chain-api/introduction - type: Signup url: https://0x.org/products/cross-chain - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-streaming-next-app - type: Documentation url: https://docs.0x.org/trade-analytics-api - type: Documentation url: https://docs.0x.org/api-reference - aid: 0x:0x-trade-analytics-api name: 0x Trade Analytics API description: Trade Analytics API endpoints humanURL: https://0x.org/products/swap baseURL: https://api.0x.org tags: - Trade Analytics properties: - type: OpenAPI url: openapi/0x-trade-analytics-api-openapi.yml - type: Documentation url: https://docs.0x.org/0x-swap-api/introduction - type: Signup url: https://dashboard.0x.org/create-account - type: SDKs url: https://github.com/0xProject/0x-swap-ts-sdk-migration - type: CodeExamples url: >- https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-allowance-holder-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-permit2-next-app - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry - type: Tutorials url: https://docs.0x.org/0x-swap-api/guides/swap-tokens-with-0x-swap-api - type: Documentation url: https://docs.0x.org/gasless-api/introduction - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-erc4337-smart-account - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot - type: Documentation url: https://docs.0x.org/cross-chain-api/introduction - type: Signup url: https://0x.org/products/cross-chain - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-headless-example - type: CodeExamples url: https://github.com/0xProject/0x-examples/tree/main/cross-chain-streaming-next-app - type: Documentation url: https://docs.0x.org/trade-analytics-api - type: Documentation url: https://docs.0x.org/api-reference common: - type: PostmanWorkspace url: https://www.postman.com/kinlaneapi/0x/overview - type: AgenticAccess url: agentic-access/0x-agentic-access.yml - type: DomainSecurity url: security/0x-domain-security.yml - type: Authentication url: authentication/0x-authentication.yml - type: Website url: https://0x.org - type: Documentation url: https://docs.0x.org - type: Portal url: https://dashboard.0x.org - type: Signup url: https://dashboard.0x.org/create-account - type: Pricing url: https://0x.org/pricing - type: Blog url: https://0x.org/post - type: GitHubOrganization url: https://github.com/0xProject - type: Twitter url: https://x.com/0xProject - type: HelpCenter url: https://help.0x.org - type: StatusPage url: https://status.0x.org - type: ChangeLog url: https://docs.0x.org/changelog - type: Tools title: MCP Server url: https://docs.0x.org/_mcp/server - type: Tools title: Claude Code Skill (0x-api) url: https://github.com/0xProject/0x-ai - type: Tools title: 0x Parser (Transaction Parsing Library) url: https://github.com/0xProject/0x-parser - type: Tools title: 0x Settler Smart Contracts url: https://github.com/0xProject/0x-settler - type: CodeExamples title: 0x API Code Examples Collection url: https://github.com/0xProject/0x-examples - type: SDKs title: '@0x/0x-parser (npm)' url: https://www.npmjs.com/package/@0x/0x-parser - type: Tutorials title: Token Swap dApp Course url: https://github.com/0xProject/token-swap-dapp-course-code - type: Tutorials title: Swap Demo Tutorial url: https://github.com/0xProject/swap-demo-tutorial - type: SupportedChains url: https://docs.0x.org/introduction/supported-chains - type: APIIssues url: https://docs.0x.org/introduction/api-issues - type: FAQ url: https://docs.0x.org/introduction/faq - type: Plans url: plans/0x-plans-pricing.yml - type: RateLimits url: rate-limits/0x-rate-limits.yml - type: FinOps url: finops/0x-finops.yml - type: Spectral url: rules/0x-rules.yml - type: Vocabulary url: vocabulary/0x-vocabulary.yml - type: JSONLD url: json-ld/0x-context.jsonld - type: Review title: Streaming Availability Review url: review.yml integrations: - name: Coinbase - name: MetaMask - name: Phantom - name: Brave - name: Rainbow Wallet - name: Polygon - name: DeFi Saver - name: Matcha - name: Ethereum - name: Arbitrum - name: Base - name: Optimism - name: BNB Smart Chain - name: Avalanche - name: Polygon - name: Linea - name: Scroll - name: Berachain - name: Abstract - name: HyperEVM - name: Ink - name: Mantle - name: Monad - name: Plasma - name: Sonic - name: Tempo - name: Unichain - name: World Chain - name: Solana - name: HyperCore - name: Tron maintainers: - FN: Kin Lane email: kin@apievangelist.com