Aleo
Aleo is a privacy-first, zero-knowledge Layer-1 blockchain for building fully private applications. Developers write smart contracts in Leo — a purpose-built language for zero-knowledge applications — compile them with snarkVM, and run them on the decentralized snarkOS network, keeping inputs, outputs, and program state private using zk-SNARK proofs while still being publicly verifiable. The ecosystem, developed by Provable (ProvableHQ), includes the Leo language and CLI, the snarkVM zkVM and snarkOS operating system, JavaScript/TypeScript and Python SDKs, a WASM runtime for in-browser proving, the Aleo Explorer, and a public node REST API for reading on-chain state and broadcasting transactions across mainnet and testnet. Aleo is a portfolio company of a16z.
Aleo publishes 5 API contracts indexed on the APIs.io network, including Blocks API, Chain API, Network API, and 2 more. Tagged areas include Company, Blockchain, Zero Knowledge, Cryptography, and Privacy.
Aleo’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, sandbox, CLI, and 23 more developer resources.
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| x402 Micropayments & Agentic Pay-per-Call | undeclared | - | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
Aleo Blocks API
Block and transaction queries
Aleo Chain API
Latest chain state
Aleo Network API
Committee and consensus state
Aleo Programs API
Deployed program and mapping queries
Aleo Transactions API
Transaction submission
Open Collections 5
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Aleo Node REST Blocks API
OPEN COLLECTIONAleo Node REST Blocks Chain API
OPEN COLLECTIONAleo Node REST Blocks Network API
OPEN COLLECTIONAleo Node REST Blocks Programs API
OPEN COLLECTIONAleo Node REST Blocks Transactions API
OPEN COLLECTIONAgent Skills 3
Packaged agent skills for driving this provider's APIs from an AI assistant.
Broadcast a signed Aleo transaction
AGENT SKILLRead Aleo chain state
AGENT SKILLRead Aleo program and mapping state
AGENT SKILLOpenAPI Overlays 1
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Aleo Node Api Overlay
DERIVEDSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 3
Properties that don't map to a standard resource type
Source (apis.yml)
Aleo API — frequently asked questions
Does Aleo have an API?
Yes. APIs.io lists 5 APIs from Aleo, including Aleo Blocks API, Aleo Chain API and Aleo Network API, and 2 more.
Is there an OpenAPI specification for the Aleo API?
Yes. APIs.io indexes 5 OpenAPI specifications for Aleo, each linked for download from this page.
How do I authenticate with the Aleo API?
Aleo uses bearer-token authentication (none · 0 schemes). The details are profiled on APIs.io as Aleo Authentication.
Is the Aleo API ready for AI agents?
Aleo has a Kin Score of 42.3 out of 100 (developing) and an Agent Readiness score of 22.3 (agent-aware), scored by API Evangelist on 2026-10-31.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.