# Tezos **Canonical:** https://apis.io/providers/tezos/ **Website:** https://tzkt.io **APIs profiled:** 34 Tezos is a self-amending blockchain platform that uses on-chain governance to upgrade its protocol without hard forks. The primary developer API surface is provided by TzKT, an open-source Tezos blockchain indexer built and maintained by the Baking Bad team. TzKT exposes a comprehensive REST API (https://api.tzkt.io) covering 100+ endpoints for querying blocks, accounts, operations, delegations, smart contracts, big maps, tokens (FA1.2/FA2/NFTs), staking data, baking rights, governance periods, and protocol metadata on the Tezos mainnet. The API supports deep filtering, deep selection, deep sorting, CSV exports, and historical data queries at specific block heights. A WebSocket API (SignalR) provides real-time subscription streams for new blocks and operations. The public TzKT API is freely available with no API key required; rate limits apply per IP via standard RateLimit headers and HTTP 429 responses. TzKT Pro is available for teams requiring elevated quotas and dedicated support. The indexer is MIT-licensed and can also be self-hosted against a Tezos node. ## Kin Score — 39.1 / 100 (thin) Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 39.1). | Facet | Score | |---|---| | Discoverability | 74.1 | | Contract Quality | 55.4 | | Governance | 9.8 | | Contract Governance | 9.8 | | Operational Transparency | 34.2 | | Developer Ergonomics | 21.4 | | Commercial Clarity | 39.5 | | Access Clarity | 39.5 | ## Agent readiness — 17.3 (agent-aware) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | no | | Idempotency | no | | Error Semantics | no | | OpenAPI Examples | no | | Rate Limit Signal | documented | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | | Delegated Identity | no | | Protected Resource Metadata | no | | Dynamic Client Registration | no | | Agentic Commerce | no | ## Access Freemium · Open access — onboarding: open, pricing: freemium, trial: no (confidence: medium). ## APIs (34) - **TzKT Accounts API** — The Accounts API returns profile data for any Tezos address — user wallets, delegates (bakers), smart contracts, and ghost accounts. Endpoints expose balance, staked amounts, to... - **TzKT Blocks API** — The Blocks API exposes Tezos block-level data including block hash, level, protocol, timestamp, baker, priority, number of operations, volume, fees, and reward metadata. Blocks ... - **TzKT Operations API** — The Operations API is the broadest endpoint group in TzKT, covering all Tezos operation types: transactions, originations, delegations, reveals, endorsements, double-bake eviden... - **TzKT Contracts API** — The Contracts API provides access to Tezos smart contract metadata, storage, entrypoints, views, and code. Storage can be retrieved as decoded JSON at the current state or at a ... - **TzKT Big Maps API** — The Big Maps API indexes all Tezos big map allocations across smart contracts, exposing individual key-value entries with historical tracking. Keys and values are decoded from M... - **TzKT Tokens API** — The Tokens API covers FA1.2, FA2, and NFT token standards on Tezos. Endpoints expose token metadata, holder balances, and transfer history. Token balances can be queried per acc... - **TzKT Delegations and Staking API** — The Delegations and Staking APIs expose baking (validation) economics on Tezos. Delegations endpoints return active and historical delegation assignments between addresses and b... - **TzKT Governance API** — The Governance API exposes Tezos on-chain governance data including voting periods, proposals, ballots, and quorum thresholds. Developers can query the history of all protocol u... - **TzKT Protocols API** — The Protocols API returns metadata for each Tezos protocol version including hash, first and last cycle, constants (block time, gas limits, baking rewards), and amendment histor... - **TzKT WebSocket API** — The TzKT WebSocket API uses SignalR to deliver real-time push notifications to subscribed clients. Channels cover new blocks, new and confirmed operations (filtered by sender, t... - **Tezos Accounts API** — The Accounts API from Tezos — 12 operation(s) for accounts. - **Tezos BigMaps API** — The BigMaps API from Tezos — 12 operation(s) for bigmaps. - **Tezos Blocks API** — The Blocks API from Tezos — 7 operation(s) for blocks. - **Tezos Commitments API** — The Commitments API from Tezos — 3 operation(s) for commitments. - **Tezos Constants API** — The Constants API from Tezos — 3 operation(s) for constants. - **Tezos Contracts API** — The Contracts API from Tezos — 25 operation(s) for contracts. - **Tezos Cycles API** — The Cycles API from Tezos — 3 operation(s) for cycles. - **Tezos Delegates API** — The Delegates API from Tezos — 3 operation(s) for delegates. - **Tezos Domains API** — The Domains API from Tezos — 3 operation(s) for domains. - **Tezos Events API** — The Events API from Tezos — 2 operation(s) for events. - **Tezos Head API** — The Head API from Tezos — 1 operation(s) for head. - **Tezos Helpers API** — The Helpers API from Tezos — 2 operation(s) for helpers. - **Tezos Operations API** — The Operations API from Tezos — 142 operation(s) for operations. - **Tezos Protocols API** — The Protocols API from Tezos — 6 operation(s) for protocols. - **Tezos Quotes API** — The Quotes API from Tezos — 3 operation(s) for quotes. - **Tezos Rewards API** — The Rewards API from Tezos — 8 operation(s) for rewards. - **Tezos Rights API** — The Rights API from Tezos — 2 operation(s) for rights. - **Tezos SmartRollups API** — The SmartRollups API from Tezos — 12 operation(s) for smartrollups. - **Tezos Software API** — The Software API from Tezos — 2 operation(s) for software. - **Tezos Staking API** — The Staking API from Tezos — 4 operation(s) for staking. - **Tezos Statistics API** — The Statistics API from Tezos — 4 operation(s) for statistics. - **Tezos Tickets API** — The Tickets API from Tezos — 7 operation(s) for tickets. - **Tezos Tokens API** — The Tokens API from Tezos — 7 operation(s) for tokens. - **Tezos Voting API** — The Voting API from Tezos — 14 operation(s) for voting. ## Agentic access (1) - **Tezos Agentic Access** — 288 operations · 3 acting ## Security (1) - **Tezos Domain Security** — TLSv1.3 · HSTS ## Plans (1) - **Tezos Plans Pricing** ## Tags Tezos, Blockchain, TzKT, Baking Bad, Cryptocurrency, Smart Contracts, NFT, Tokens, Delegations, Staking, Governance, FA1.2, FA2, WebSocket --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/tezos/). Scores are computed from the provider's own public artifacts under a published rubric.