Onchain
Variants seen in the corpus:
On-ChainOn-chainOnChainOnchain
Providers using this tag (37)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 3 Solid coverage with minor gaps
Developing 7 Usable, with meaningful gaps to close
Thin 19 Limited public surface area
Emerging 7 Early or largely undocumented
Minimal 1 Almost no public developer surface
APIs with this tag (29)
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 →
Strong 3 Solid coverage with minor gaps
OpenZeppelin Monitor APIOpenZeppelin Monitor is an open-source blockchain monitoring service that watches for specific on-chain act...Kaiko On-chain APIOn-chain metrics including DEX trades, liquidity, lending markets, and MEV signals across major chains.Amberdata On-Chain APIOn-chain blockchain data (blocks, transactions, addresses, tokens).
Developing 4 Usable, with meaningful gaps to close
Gitcoin Grants Stack Indexer APIGraphQL API for querying indexed on-chain data from the Gitcoin Grants Stack and Allo Protocol. Provides ac...CryptoCompare On-Chain APIOn-chain blockchain metrics aggregated across chains.OKX Wallet API (Onchain OS)Developer APIs for OKX Web3 wallet integration, including multi-chain transaction signing, DEX aggregation ...Surf Onchain APIQuery blockchain data directly. Look up transaction details by hash, check gas prices, and run structured o...
Thin 18 Limited public surface area
Neynar Onchain APIOperations related to onchain dataSpindl Ads APIPublisher-facing onchain advertising API. Fetch targeted ad recommendations for a wallet address at a named...Dune Query APIREST endpoints for executing pre-saved Dune SQL queries, polling execution status, and paginating results. ...Dune Trends APICurated, fixed endpoints over Dune's most popular trend datasets without writing SQL.ParaSwap AugustusRFQ APIThe AugustusRFQ API enables market makers to integrate with ParaSwap's on-chain limit order and Request-for...GMX GraphQL APIHistorical on-chain data for GMX via Subsquid-powered GraphQL endpoints. Enables deep queries over trades, ...CryptoQuant On-Chain APINetwork indicators including SOPR, MVRV, NVT, and active addresses.Art Blocks Subgraph — Arbitrum OneDecentralised subgraph on The Graph Network providing on-chain-only data for Art Blocks tokens, projects, a...Art Blocks Subgraph — BaseDecentralised subgraph on The Graph Network providing on-chain-only data for Art Blocks tokens, projects, a...Art Blocks Subgraph — EthereumDecentralised subgraph on The Graph Network providing on-chain-only data for Art Blocks tokens, projects, a...Glassnode Metrics APITime-series API for thousands of on-chain and market metrics across major crypto assets. Endpoints follow /...Filecoin Onchain Cloud Synapse APIHigh-level TypeScript SDK and API for the Filecoin Onchain Cloud — a smart-contract-based marketplace provi...Farcaster OnChain APIThe OnChain API from Farcaster — 4 operation(s) for onchain.OnchainKitReact component library and TypeScript SDK (@coinbase/onchainkit) for building onchain apps on Base — walle...Curve Smart ContractsCurve's primary surface for swaps and liquidity is a set of audited Vyper smart contracts deployed across m...Nansen REST APIREST API surfacing Nansen's on-chain intelligence: smart-money flows, profiler (wallet labels and balances)...Raydium Solana ProgramsRaydium's swap, AMM, CLMM, farm, and launchpad programs deployed on Solana.KyberSwap OnChain Price Service APIDelivers accurate, reliable, and tradable on-chain token price data for each supported network, reflecting ...
Emerging 4 Early or largely undocumented
Delphi APIREST + on-chain API for the Delphi information (prediction) market platform. REST endpoints cover market di...Lens Protocol Smart ContractsThe Lens v3 smart contracts implement the onchain social graph on Lens Chain. Core primitives include Accou...Goldsky ComposeExecution layer for orchestrating onchain-x-offchain workflows - compose smart-contract calls, external API...Balancer Smart ContractsVault and Router smart contracts where swaps and liquidity actions are executed on-chain. v2 and v3 version...
Score breakdown
Frequency
47.0
log-scaled weighted occurrences
Breadth
1.0
spread across providers
Quality lift
40.8
mean composite of providers using it
Cohesion
6.2
strength of nearest seed neighbor
Related tags
DEX 8 co-occurrences
Multi-Chain 7 co-occurrences
The Graph 5 co-occurrences
Indexer 5 co-occurrences
Liquidity 6 co-occurrences
EVM 6 co-occurrences
DeFi 17 co-occurrences
Web3 27 co-occurrences
Where this tag comes from
Provider tag18
Api tag29
Openapi tag4
Openapi op tag18
Cohort brief
Auto-generatedThe 37 providers in the APIs.io catalog tagged Onchain, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
37
all scored
Mean Kin Score
33.8
+13.1 vs catalog 20.7
Mean Agent Readiness
21.1
+11.4 vs catalog 9.7
Spread
6.9–57.5
median 34.6 · σ 11.9
How the 37 split by band
Exemplar 0Strong 2Developing 9Thin 17Emerging 8Minimal 1
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 41.5 | 17.5 | +24 | 37 |
| Discoverability | 76.2 | 60.4 | +15.8 | 37 |
| Developer Ergonomics | 32 | 17.9 | +14.1 | 37 |
| Access Clarity | 30.4 | 22.3 | +8.1 | 37 |
| Operational Transparency | 19.1 | 11.3 | +7.8 | 37 |
| Contract Governance | 7.3 | 6.4 | +0.9 | 37 |
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) | 30% | 16% | +14 |
| MCP server (first-party) | 16% | 7% | +9 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 0% | 9% | -9 |
| Security | 100% | 88% | +12 |
| Arazzo workflows | 3% | 2% | +1 |
| Governance rules | 22% | 13% | +9 |
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 Kaiko 57.5
- 2 Amberdata 55.3
- 3 CryptoCompare 53.8
- 4 OpenZeppelin 50
- 5 Gitcoin 49.1
- 6 Coinbase Global 47.2
- 7 OKX 44.8
- 8 Enso 44.7
- 9 Surf 41.8
- 10 Boost 40.6
Top by Agent Readiness
- 1 CryptoCompare 60.2
- 2 Neynar 38.8
- 3 Amberdata 38.4
- 4 Boost 34.2
- 5 Re 32.3
- 6 Coinbase Global 32.2
- 7 Art Blocks 31.3
- 8 OpenZeppelin 30.6
- 9 Spindl 29.7
- 10 Gitcoin 29.6
All 37 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.