Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 1 Complete, well-documented, and agent-ready

Crypto.com Developer Platform APIOn-chain developer platform service API for Cronos EVM and Cronos zkEVM, exposing native and ERC-20 token b...72.6

Strong 2 Solid coverage with minor gaps

Fireblocks Staking APIExecute and track staking operations across multiple proof-of-stake chains. Browse staking providers and va...64.2 Amberdata DeFi APIDecentralized finance (DEX and lending) data.55.3

Developing 16 Usable, with meaningful gaps to close

Ostium Builder APIPublic Builder API and TypeScript/Python SDK surface for reading Ostium market data (pairs, prices, OHLC ca...51.4 Codex GraphQL APICodex is Defined's unified GraphQL API for real-time blockchain data: token prices, OHLCV bars, trades, liq...51.1 Uniswap Subgraph APIThe Uniswap Subgraph API provides GraphQL endpoints for querying on-chain data across Uniswap protocol vers...47.3 UniswapX APIUniswapX is a gasless, auction-based ERC20 swap settlement protocol that routes orders through a competitiv...47.3 Blockdaemon DeFi APISingle REST interface (formerly Expand Network) into multiple DeFi protocols — DEX swaps and aggregation ac...47.0 OKX Financial Products APIEndpoints for on-chain earning, staking, simple earn, and lending products available through the OKX platform.44.8 Gala DeFi Backend APIThe backend behind GalaSwap: trade quotes, pools and composite pools, positions, add and remove liquidity, ...42.0 GalaChain DEX v3 Contract APIThe GalaChain asset-channel concentrated-liquidity DEX contract (dexv3), exposed over REST by the GalaChain...42.0 GalaChain Launchpad Contract APIThe GalaChain asset-channel launchpad contract, exposed over REST by the GalaChain Gateway. Covers bonding-...42.0 GalaConnect APIGalaConnect is Gala's public programmatic surface for GalaSwap: fetching and filling token swaps, creating ...42.0 API3 dAPI Data FeedsManaged decentralized API (dAPI) data feeds sourced directly from first-party oracle nodes operated by the ...41.2 API3 OEV RewardsOracle Extractable Value (OEV) Rewards is API3's revenue-sharing mechanism for dApps that integrate OEV-ena...41.2 ThunderCore Subgraph GraphQL APIGraphQL query surface over official ThunderCore subgraphs (TTSwap DEX and TT Mining) served from ThunderCor...41.2 Euler Off-Chain Prices APIAn unofficial REST endpoint for fetching USD-denominated asset prices for ERC-20 tokens across supported ne...40.1 Euler Subgraphs (GraphQL)GraphQL-based subgraph endpoints hosted on Goldsky for querying indexed Euler V2 protocol data including va...40.1 Euler V2 TypeScript SDKThe recommended TypeScript entry point for applications, bots, scripts, and operational tooling built on Eu...40.1

Thin 23 Limited public surface area

Rugspull Read APINine GET-only endpoints providing service health, chain config, indexer status, discovery cache, indexed ev...38.4 DeBank OpenAPIThe DeBank Cloud Pro API — a Swagger 2.0 contract published at the API host root covering chain and protoco...37.8 Footprint Analytics DeFi APIDeFi protocol metrics including TVL, DEX liquidity, and yield36.5 Yield.xyz APINon-custodial yield REST API to discover yields, construct unsigned transaction flows (enter/exit/manage), ...36.0 Odos Liquidity Zaps APIThe Odos Liquidity Zaps API enables streamlined single-transaction liquidity provisioning with optimized ro...35.9 Odos Token Pricing APIThe Odos Token Pricing API provides real-time price data for 100,000+ DeFi assets across 15 supported block...35.9 ParaSwap Delta APIThe Velora Delta API is an intent-based protocol that enables gas-less token swaps where multiple agents co...35.5 Gondi GraphQL APIThe off-chain Gondi GraphQL API (api.gondi.xyz/graphql) is the order/offer book and indexing layer behind t...35.4 Aevo Exchange WebSocket APIReal-time WebSocket API for Aevo exchange providing low-latency streams for orderbook updates, trade feeds,...34.1 Ribbon Finance Subgraph APIGraphQL API hosted on The Graph protocol providing indexed on-chain data for Ribbon Finance vaults includin...34.1 Clipper RFQ APIRequest-for-Quote swap API for the Clipper DEX. Aggregators retrieve pool state (price feeds, k factor), re...33.2 Clipper Subgraph (GraphQL)GraphQL API endpoints hosted on The Graph that index Clipper's smart contracts across Ethereum, Optimism, P...33.2 Morpho APIMorpho's public GraphQL API providing real-time and historical onchain and offchain data across Morpho Blue...33.1 Perpetual Protocol Curie v2 SubgraphPublic GraphQL subgraph indexing the Perpetual Protocol Curie (v2) perpetual futures protocol on Optimism (...32.9 Vesper Contracts API ReferenceSmart contract interface reference for Vesper pools, strategies, PoolAccountant, PoolRewards, and related o...32.5 Liquity V2 Website Data APIData feeds for the Liquity website including yield venues, leaderboard, and borrow rates.31.8 DefiLlama Pro APIPaid REST API ($300/month) with higher rate limits and 38 exclusive endpoints covering token unlocks, cross...31.3 DefiLlama Public APIFree, no-auth REST API exposing 31+ endpoints for protocol TVL, chain TVL, coin prices, stablecoin metrics,...31.3 Solscan Pro APICommercial Pro API with full account, transaction, token, NFT, DeFi, and analytics endpoints. Higher rate l...31.2 Moralis DeFi APIThe DeFi API from Moralis — 3 operation(s) for defi.30.1 Band Standard DatasetThe Band Standard Dataset is an open standard for creating and accessing custom price feeds that deliver hi...29.6 Dopex LP Management APIREST API for liquidity providers participating in Dopex CLAMM vaults. Exposes endpoints to prepare deposit ...28.4 Dopex xSYK Staking Positions APIREST API for querying xSYK (escrowed SYK) staking and vesting positions for a given account address. Return...28.4

Emerging 9 Early or largely undocumented

KyberSwap Limit Order APIEnables creation, management, and fulfillment of gasless limit orders. Exposes General, Maker, and Taker en...25.4 KyberSwap Zap as a Service (ZaaS) APIStreamlines adding and removing concentrated liquidity positions using any single token. Provides Zap-In, Z...25.4 Hifi Protocol SubgraphThe Graph subgraph that indexes the Hifi fixed-rate, fixed-term lending protocol — vaults, collateral and d...20.7 Parsec Finance APIPro GraphQL API for on-chain DeFi and NFT market data — DEX trades, candles, lending markets, liquidity poo...20.6 Beefy Finance GraphQL APIGraphQL subgraph API for querying Beefy Finance protocol data including vaults, investors, positions, harve...17.5 Frax Finance GraphQL APIGraphQL subgraph for Fraxswap on Ethereum, exposing pairs, tokens, swaps, liquidity positions, TWAMM long-t...16.9 Convex Finance GraphQL APISubgraph-based GraphQL API for querying Convex Finance on-chain data including pools, deposits, withdrawals...16.0 Mirror APIRead-only GraphQL data service (Mirror Graph) exposing Mirror Protocol state — synthetic assets (mAssets), ...15.6 Compound Finance GraphQL APIGraphQL API for querying Compound Finance v2 protocol data via The Graph subgraph, including markets, accou...15.0

Minimal 1 Almost no public developer surface

Parallel Finance JSON-RPC (polkadot.js)Substrate/Polkadot JSON-RPC interface to the Parallel Finance parachain, accessed over WebSocket with the p...8.6

Score breakdown

Frequency

69.9

log-scaled weighted occurrences

Breadth

8.1

spread across providers

Quality lift

33.9

mean composite of providers using it

Cohesion

36.1

strength of nearest seed neighbor

Where this tag comes from

Provider tag293

Api tag52

Openapi tag2

Openapi op tag5

Cohort brief

Auto-generated

The 297 providers in the APIs.io catalog tagged DeFi, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

297

all scored

Mean Kin Score

+7.3 vs catalog 20.7

Mean Agent Readiness

14.2

+4.5 vs catalog 9.7

Spread

0.1–72.6

median 27.5 · σ 15.9

How the 297 split by band

Exemplar 3Strong 13Developing 64Thin 74Emerging 91Minimal 52

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	36.7	17.9	+18.8	297
Contract Quality	27.1	17.5	+9.6	297
Discoverability	68.6	60.4	+8.2	297
Operational Transparency	16.2	11.3	+4.9	297
Contract Governance	8.1	6.4	+1.7	297
Access Clarity	21.2	22.3	-1.1	297

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	29%	16%	+13
MCP server (first-party)	11%	7%	+4
Agent Skills	0%	0%	0
OAuth scopes	0%	9%	-9
Security	97%	88%	+9
Arazzo workflows	2%	2%	0
Governance rules	17%	13%	+4

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 Crypto.com 72.6
2 Solidus Labs 66.8
3 Zerion 66.6
4 SiftingIO 66.1
5 Solana 65.8
6 fireblocks 64.2
7 Chainstack 61.8
8 Covalent 60.4
9 LI.FI 59.2
10 0x 58.3

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DeFi

Providers using this tag (297)

APIs with this tag (52)