# DLL Execution > Execution infrastructure for AI agents. Base Mainnet (8453), read-only and non-custodial. DLL does not sign or broadcast transactions. This is an index, not a second API contract. Follow the live OpenAPI schemas, capabilities, pricing and payment metadata. ## Public contract - [Origin entry](https://execution.dll.io/) - [/openapi.json](https://execution.dll.io/openapi.json) - [/capabilities](https://execution.dll.io/capabilities) - [/pricing](https://execution.dll.io/pricing) - [/payment](https://execution.dll.io/payment) ## Select a capability - [Preflight](https://github.com/dllio/dll-execution-docs/blob/main/PREFLIGHT.md): Unsigned candidate: assess before acting. Free; no wallet signature or payment required. Judgment is not authorization, guaranteed success or complete future cost. - [Verification](https://github.com/dllio/dll-execution-docs/blob/main/VERIFICATION.md): Already-broadcast transaction: verify explicit expectations after execution. Free; no wallet signature or payment required. VERIFIED covers requested checks only. Receipt success must be explicitly checked; finality, ownership, causality and broader application success are not established. - [Benchmark](https://github.com/dllio/dll-execution-docs/blob/main/BENCHMARK.md): Observed transactions: compare execution cost with historical context. Paid valid analyses via SIWX and x402 v2 upto: $0.005 per delivered valid analysis; first three valid analyses per verified wallet are free. A quote is a maximum, not an actual charge. See /pricing and /payment. Historical comparison is not a route recommendation, profitability judgment or future fee guarantee. ## Integration guides - [Capability selection and FAQ](https://github.com/dllio/dll-execution-docs/blob/main/CAPABILITY_SELECTION.md) - [Quickstart](https://github.com/dllio/dll-execution-docs/blob/main/QUICKSTART.md) - [Agent instructions](https://github.com/dllio/dll-execution-docs/blob/main/AGENTS.md) - [Remote MCP guide](https://github.com/dllio/dll-execution-docs/blob/main/MCP.md): Streamable HTTP at https://execution.dll.io/mcp. Only enabled free Preflight/Verification tools; no payment or execution. - [Public GitHub documentation](https://github.com/dllio/dll-execution-docs) ## Crawl hints - [robots.txt](https://execution.dll.io/robots.txt) - [Public sitemap](https://execution.dll.io/sitemap.xml) HTTP 200 is not a successful-transaction guarantee. Verify only explicit expectations; unavailable evidence remains unknown. Benchmark is the only current x402 discovery resource.