JSON-RPC
Providers using this tag (58)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Developing 10 Usable, with meaningful gaps to close
Thin 24 Limited public surface area
Emerging 22 Early or largely undocumented
APIs with this tag (157)
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 3 Complete, well-documented, and agent-ready
Trustly Europe APIJSON-RPC 1.1 API for Trustly Pay by Bank in Europe and the UK. Methods cover Deposit, Withdraw/AccountPayou...Qlik Engine APIJSON-RPC WebSocket API for interacting with the Qlik Associative Engine, creating and manipulating apps, an...SignalWire Calling API (JSON-RPC)An OpenRPC 1.3.2 contract for real-time control of live calls over RELAY — 8 methods (calling.dial, calling...
Strong 4 Solid coverage with minor gaps
Celestia Node Blob APIJSON-RPC methods in the blob module of celestia-node. Submit blobs to one or more namespaces with blob.Subm...Nutshell Legacy JSON-RPC APINutshell's original JSON-RPC API, available since 2010. Nutshell states it is no longer adding new endpoint...MERCURY Web Fetch A2A AgentAgent-to-Agent (A2A 0.3.0) surface for "MERCURY Web Fetch", published as a conformant agent card at https:/...Blockdaemon RPC APIProduction-ready shared and dedicated JSON-RPC and REST node endpoints across 50+ protocols including Bitco...
Developing 20 Usable, with meaningful gaps to close
Codashop and Coda Webstore Fulfillment APIThe publisher-implemented JSON-RPC fulfillment contract Coda calls to deliver purchases made on Codashop an...Chainstack JSON RPC APIThe JsonRPC API from Chainstack — 1 operation(s) for jsonrpc.0G Chain JSON-RPCEthereum-compatible JSON-RPC endpoint for the 0G Chain mainnet ("Aristotle", chain ID 16661), an AI-focused...Kusama JSON-RPC APIThe public Substrate JSON-RPC 2.0 interface to the Kusama relay chain. Probed live on 2026-07-19: 130 metho...SharpSpring Open APIThe SharpSpring (Constant Contact Lead Gen & CRM) Open API — a single HTTPS POST endpoint that accepts a JS...Uzum BaaS Payment HubBanking-as-a-Service JSON-RPC 2.0 API that lets partners embed payments, transfers and account and card ope...GRITH Gate A2A AgentThe A2A 1.0 JSON-RPC bridge at https://grithgate.com/api/a2a (also on grithland.com and grithhold.com), des...Aurelius Agent A2A APIAgent-to-Agent (A2A 0.3.0) JSON-RPC surface for Aurelius Agent, WunderCorp's strategic planning and orchest...GUNZ Chain JSON-RPC APIThe public Ethereum-compatible JSON-RPC endpoint for the GUNZ L1 chain, an Avalanche subnet running Subnet-...Zircuit JSON-RPC APIStandard Ethereum JSON-RPC 2.0 interface to the Zircuit L2 network (HTTP and WebSocket) for reading chain s...Qlik Engine JSON-RPC APIThe JSON-RPC API over WebSocket that enables interaction with the Qlik Associative Engine for Qlik Sense ap...Sui JSON-RPC APIThe Sui full-node JSON-RPC API (OpenRPC 1.2.6) for reading objects, coins, balances, events, checkpoints, d...Name Whisper A2A AgentThe agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at https://namewhisper.ai/a2a whose ag...ThunderCore Mainnet JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API for the ThunderCore mainnet (chain ID 108, TT gas token). Supports the...ThunderCore Testnet JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API for the ThunderCore testnet (chain ID 18, TST gas token), with a fauce...Infura Web3 APIInfura's managed Web3 API surface — JSON-RPC 2.0 access to Ethereum and 40+ EVM networks (Base, Arbitrum, O...Finn-tannlege A2A AgentThe agent-to-agent surface: an anonymous A2A JSON-RPC 2.0 endpoint at https://finn-tannlege.com/a2a impleme...Linea JSON-RPC APIStandard Ethereum JSON-RPC API plus Linea-specific extensions available at the public endpoint rpc.linea.bu...Linea Sepolia Testnet JSON-RPCPublic JSON-RPC endpoint for the Linea Sepolia testnet (chain ID 59141), used for application development, ...Shapeshift Jsonrpc APIThe Jsonrpc API from Shapeshift — 1 operation(s) for jsonrpc.
Thin 82 Limited public surface area
A2A402 Agent Work Router (A2A)The Agent2Agent JSON-RPC 2.0 endpoint declared by the agent card: message/send returns a stateless A2A Mess...Kunlun Yaochi A2A JSON-RPC APIThe agent-to-agent surface named in the company's A2A agent card: a JSON-RPC 2.0 endpoint exposing 16 metho...NetApp Element APIAPI for NetApp Element software and NetApp HCI storage management.Deribit WebSocket APIJSON-RPC over WebSocket interface for real-time bidirectional communication with the Deribit exchange. Reco...CKB JSON-RPC APIPublic JSON-RPC 2.0 interface to Nervos CKB nodes for querying chain state (blocks, transactions, cells), s...Direct Hire A2A Meta-AgentDirect Hire's A2A v1.0 discovery agent, published at /.well-known/agent-card.json with a JSON-RPC interface...SINCOR Agent Swarm A2A APIA2A 1.0.1 agent surface over JSON-RPC 2.0 exposing sixteen skills. Discover via the agent card, quote a ski...OP Mainnet JSON-RPCPublic Ethereum JSON-RPC endpoint for OP Mainnet (chain ID 10). Supports standard eth_* methods plus Optimi...OP Sepolia JSON-RPCPublic Ethereum JSON-RPC endpoint for the OP Sepolia testnet (chain ID 11155420) used for development and i...Optimism JSON-RPC APIStandard Ethereum JSON-RPC method invocation.Vana L1 JSON-RPCStandard Ethereum JSON-RPC for the EVM-compatible Vana L1 blockchain, which records registrations, grants, ...Qlik Sense Engine JSON APIWebSocket protocol API using JSON-RPC for interacting with the Qlik Associative Engine.Syndica ChainStream APIChainStream is Syndica's real-time Solana data streaming API. It consolidates updates from multiple validat...Syndica Solana RPC (HTTP) APIHigh-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node architecture acro...ZKsync Era JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API for the ZKsync Era ZK rollup. Standard eth_* methods plus the ZKsync-s...zkSync Era Mainnet JSON-RPCJSON-RPC endpoint for zkSync Era mainnet (chain ID 324). Implements standard eth_* methods plus zks_* exten...zkSync Era Sepolia JSON-RPCJSON-RPC endpoint for the zkSync Era Sepolia testnet (chain ID 300) used for development, contract deployme...QuickNode Core RPC APIMulti-chain JSON-RPC, REST, and gRPC endpoints across 77+ blockchains (Ethereum, Solana, Polygon, Arbitrum,...A2APark A2A AgentThe Park's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint whose single method, message/se...Mycelnet A2A AgentMycelnet's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at https://mycelnet.ai/a2a desc...MobileCoin Full-Service Wallet APIJSON-RPC 2.0 wallet backend for the MobileCoin network - manage accounts and addresses, build and submit tr...Flashbots Auction Relay (JSON-RPC)JSON-RPC endpoint for submitting bundles and private transactions to the Flashbots block builder. Supports ...Flashbots Auction Relay (Sepolia Testnet)Sepolia testnet instance of the Flashbots Auction JSON-RPC relay for bundle submission and testing without ...Flashbots Protect RPCPublic-facing Ethereum JSON-RPC endpoint that routes transactions through Flashbots' private mempool to pro...Mezo Chain EVM JSON-RPCEVM-compatible Ethereum JSON-RPC interface to the Mezo chain (eth_* methods) for reading chain state and su...Uniblock JSON-RPC APIThe Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockch...Kite Chain JSON-RPC (Mainnet)EVM-compatible JSON-RPC interface for Kite Chain mainnet (chain ID 2366, native token KITE), available over...Kite Chain JSON-RPC (Testnet)EVM-compatible JSON-RPC interface for Kite Chain testnet (chain ID 2368), paired with a public faucet and t...Routescan Geth/Parity Proxy APIEthereum JSON-RPC compatible proxy endpoints for standard methods including eth_blockNumber, eth_getBlockBy...Ronin JSON-RPC APIEthereum-compatible JSON-RPC endpoint for the Ronin network — read chain state, submit transactions, call c...Azimuth Layer 2 Roller HTTP RPC-APIThe HTTP RPC-API of Azimuth's Layer 2 naive rollup roller, primarily intended for interacting with Bridge. ...The Root Network Node RPCPublic archive-node RPC for The Root Network mainnet, exposing both the Substrate JSON-RPC surface (author,...Aurora JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API for the Aurora EVM network of virtual chains on NEAR. Exposes the stan...Helius Digital Asset Standard (DAS) APISolana JSON-RPC API for unified asset queries (compressed NFTs, regular NFTs, tokens) including getAsset, g...Helius Photon RPC (ZK Compression)Indexed RPC for Solana ZK compression (compressed accounts).Helius SenderParallel transaction routing through Helius and Jito for inclusion latency optimization.Helius Solana RPCSolana JSON-RPC and WebSocket endpoints with enhanced WebSockets, archival data, and staked connections.HyperEVM JSON-RPCEVM-compatible JSON-RPC endpoint exposed by Hyperliquid for deploying and interacting with smart contracts ...Reown Blockchain APIMulti-chain JSON-RPC over HTTPS used by AppKit and partners; provides on-chain reads, gas, swaps, and onram...Hegic Smart Contracts (Arbitrum)Hegic's core options protocol is implemented as smart contracts on Arbitrum One. Developers can interact di...Cometh Connect Bundler APIERC-4337 bundler JSON-RPC endpoint. Accepts User Operations into the mempool, estimates UserOp gas, returns...Cometh Connect Paymaster APIERC-4337 paymaster JSON-RPC endpoint for transaction sponsorship (pm_sponsorUserOperation, pm_supportedEntr...Alchemy Bundler API (ERC-4337)JSON-RPC bundler endpoints for ERC-4337 user operations (eth_sendUserOperation, eth_estimateUserOperationGa...Alchemy Node API (JSON-RPC)Multi-chain JSON-RPC over HTTPS and WebSockets covering standard eth_*, solana, and other chain methods, pl...Alchemy Simulation APIREST/JSON-RPC API for simulating transactions and asset changes before broadcasting.Arbitrum JSON-RPC APIEthereum-compatible JSON-RPC 2.0 endpointArbitrum Nova JSON-RPCPublic Ethereum JSON-RPC endpoint for Arbitrum Nova (chain ID 42170), an AnyTrust chain with a Data Availab...Arbitrum One JSON-RPCPublic Ethereum JSON-RPC endpoint for Arbitrum One mainnet (chain ID 42161), the flagship optimistic rollup...Arbitrum Sepolia JSON-RPCPublic Ethereum JSON-RPC endpoint for the Arbitrum Sepolia testnet (chain ID 421614).Glama MCP GatewayReverse-proxy MCP gateway that fronts hosted, remote, and custom MCP servers under a per-user endpoint of t...EOSIO Nodeos History APIThe history_api_plugin exposes endpoints under /v1/history for retrieving historical actions, transactions,...EOSIO Nodeos Net APIThe net_api_plugin exposes endpoints under /v1/net for inspecting and managing peer-to-peer connections of ...EOSIO Nodeos Producer APIThe producer_api_plugin exposes endpoints under /v1/producer for controlling block production on a node, in...X402 AI 自助门店 A2A AgentThe store's agent-to-agent surface: an anonymous A2A 0.3 JSON-RPC endpoint the agent card points at, where ...Blast JSON-RPC APIEthereum-compatible JSON-RPC methods exposed by the Blast node.Blast Mainnet JSON-RPCPublic Ethereum-compatible JSON-RPC endpoint for Blast mainnet (chain ID 81457). Supports the standard eth_...Blast Sepolia Testnet JSON-RPCPublic JSON-RPC endpoint for the Blast Sepolia testnet (chain ID 168587773), used for application developme...HyperRPC JSON-RPC APIRead-only JSON-RPC endpoint optimised for data-intensive operations, providing up to 5x performance improve...Morph JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API (eth_*, net_*, web3_*) plus Morph-specific methods such as morph_getBl...Infura JSON-RPC APIMulti-chain JSON-RPC over HTTPS and WebSockets across 23+ networks (Ethereum, Linea, Polygon, Arbitrum, Opt...Infura Solana JSON-RPCSolana JSON-RPC and WebSocket endpoints.Monad JSON-RPC APIFull JSON-RPC method reference — standard Ethereum eth_*, net_*, web3_*, debug_*, and trace_* methods plus ...Monad Mainnet JSON-RPCPublic Ethereum-compatible JSON-RPC endpoint for Monad mainnet (chain ID 143, native token MON). Hosted on ...Monad Testnet JSON-RPCPublic JSON-RPC endpoint for the Monad public testnet, used for application development, integration testin...Privy Wallets RPCJSON-RPC method passthrough for signing transactions and arbitrary RPC calls against Privy-managed wallets.allagents Operator (A2A Agent)The directory as an A2A agent. POST a JSON-RPC 2.0 message/send stating a need ("I need a translation agent...Perkoon Agent Data Layer (A2A)Perkoon's agent-to-agent surface: an A2A agent card served at /.well-known/agent-card.json and the legacy /...Tenderly Node RPCProduction-grade JSON-RPC node infrastructure supporting 80+ EVM networks including Ethereum, Arbitrum, Opt...XRPL JSON-RPC API (Mainnet)JSON-RPC interface to the XRP Ledger mainnet for querying accounts, transactions, ledgers, order books, AMM...XRPL JSON-RPC API (Testnet)JSON-RPC interface to the XRP Ledger Altnet testnet for development and testing. Supports the same method s...Aleo RPC APIFree public JSON-RPC 2.0 API for reading the Aleo zero-knowledge blockchain — latest blocks and heights, tr...p0stman MCP ServerLive, anonymous, remote Model Context Protocol server at https://p0stman.com/api/mcp (JSON-RPC 2.0 over HTT...Tatum RPC GatewayJSON-RPC over HTTPS to 130+ blockchain networks (Ethereum, Bitcoin, Solana, Polygon, BNB, Avalanche, Algora...Zero A2A Agentp0stman's agent-to-agent surface: an A2A agent card for "Zero" served at /.well-known/agent-card.json (and ...XMTP App Chain RPC APIJSON-RPC API for the XMTP Layer-3 appchain built on Arbitrum and settling to Base. Used for smart contract ...SKALE JSON-RPC APIEthereum-compatible JSON-RPC 2.0 API served by SKALE Chains (per-chain RPC/WSS endpoints), plus SKALE Progr...MCP SpecificationThe authoritative protocol definition for the Model Context Protocol, maintained at modelcontextprotocol.io...Graph Node Admin JSON-RPC (self-hosted)JSON-RPC admin interface to a self-hosted Graph Node for deploying, listing, and managing subgraphs. Public...=nil; JSON-RPC APIEthereum-style JSON-RPC 2.0 API exposing the =nil; cluster — blocks, transactions (messages), accounts, con...AI City Social Town A2A APISingle JSON-RPC 2.0 endpoint (POST https://aicity.jiademin2688.top/a2a) through which external agents join ...Odoo External APIOdoo's external API for integrating with the platform using JSON-RPC and XML-RPC protocols for accessing al...Odoo JSON-RPC APIJSON-RPC transport for the same operations
Emerging 46 Early or largely undocumented
Juno Full NodeGo implementation of a Starknet full node from Nethermind that serves the Starknet JSON-RPC and acts as a s...Pathfinder Full NodeRust implementation of a Starknet full node from Equilibrium that serves the Starknet JSON-RPC, syncs from ...Starknet JSON-RPC SpecificationVersioned JSON-RPC specification implemented by Starknet full nodes (Pathfinder, Juno, Papyrus) and infrast...Starknet Mainnet RPC (Public Providers)Starknet Mainnet (chain ID SN_MAIN) is reached via the Starknet JSON-RPC at hosted providers — Infura, Alch...Starknet Sepolia RPC (Public Providers)Public JSON-RPC endpoint for Starknet Sepolia testnet (chain ID SN_SEPOLIA) for development and integration...Monero JSON-RPC APIJSON-RPC 2.0 dispatch endpointZora Network RPC APIJSON-RPC access to the Zora Network L2 chain (Chain ID 7777777), an OP Stack rollup on Ethereum. Compatible...Filecoin Calibration Testnet Glif APIGlif-hosted public Lotus node endpoint for the Filecoin Calibration testnet. Provides the same read-only JS...Filecoin Glif Lotus JSON-RPC APIPublic, load-balanced Lotus node endpoint hosted by Glif providing read-only access to the Filecoin mainnet...Sei EVM JSON-RPC APIEthereum-compatible JSON-RPC API for interacting with Sei's EVM layer. Supports standard Ethereum methods f...Flipside Crypto JSON-RPC APIThe JSON-RPC API from Flipside Crypto — 1 operation(s) for json-rpc.Sui JSON-RPC API (Deprecated)The legacy JSON-RPC API for interacting with Sui full nodes, providing methods for querying objects, transa...Scroll JSON-RPC (Mainnet)Standard Ethereum JSON-RPC interface for Scroll mainnet (chain ID 534352). Used by wallets, dApps, indexers...Scroll JSON-RPC (Sepolia Testnet)Standard Ethereum JSON-RPC endpoint for Scroll Sepolia testnet (chain ID 534351), used for development, int...Scroll JSON-RPC APIEthereum JSON-RPC over HTTP POSTBase Flashblocks RPCPre-confirmation JSON-RPC endpoint exposing Flashblocks — sub-block streams of ordered transactions that al...Base JSON-RPC APIEthereum JSON-RPC 2.0 endpointBase Mainnet JSON-RPCStandard Ethereum JSON-RPC endpoint for Base Mainnet (chain ID 8453). Supports eth_*, net_*, web3_*, and Op...Base Sepolia JSON-RPCPublic JSON-RPC endpoint for the Base Sepolia testnet (chain ID 84532) used for development, contract deplo...Litecoin JSON-RPC APILitecoin Core JSON-RPC 2.0 interface. All methods are accessed via a single POST endpoint using the method ...5ireChain Mainnet JSON-RPCEthereum-compatible JSON-RPC 2.0 endpoint for the 5ireChain mainnet (EIP-155 chain ID 995, native currency ...5ireChain Thunder Testnet JSON-RPCEthereum-compatible JSON-RPC 2.0 endpoint for the 5ireChain Thunder testnet (EIP-155 chain ID 997, native c...Zcash JSON-RPC API (zcashd)The primary JSON-RPC interface exposed by zcashd, the original Zcash full node. Backwards compatible with B...Zcash Payment API (z_ methods)The Zcash-specific extension to the JSON-RPC interface that enables shielded (private) transaction operatio...Zebra JSON-RPC APIThe JSON-RPC API provided by zebrad, the Zcash Foundation's independent Zcash full node implementation writ...Mantle JSON-RPC (Mainnet)Standard Ethereum JSON-RPC endpoint for Mantle mainnet (chain ID 5000). Used by wallets, dApps, indexers, a...Mantle JSON-RPC (Sepolia Testnet)Standard Ethereum JSON-RPC endpoint for the Mantle Sepolia testnet, used for development, contract deployme...Mantle WebSocket (Mainnet)WebSocket endpoint for real-time JSON-RPC subscriptions on Mantle mainnet - new blocks, new pending transac...Push Chain EVM ClientPush Chain is 100% EVM-compatible; developers can initialize standard Ethers v6 or Viem clients against Pus...1inch Web3 RPC APIHosted JSON-RPC endpoints for 14+ EVM and non-EVM networks, exposed through the 1inch API key for unified r...Manta Atlantic (Substrate JSON-RPC)Substrate/Polkadot parachain JSON-RPC endpoint (WebSocket) for Manta Atlantic (Polkadot Para ID 2104, nativ...Manta Pacific (EVM JSON-RPC)EVM-compatible Ethereum JSON-RPC endpoint for the Manta Pacific Layer-2 rollup (chain ID 169, currency ETH)...Berachain Bepolia Testnet JSON-RPCPublic JSON-RPC endpoint for the Bepolia testnet (chain ID 80069), used for application development and int...Berachain Mainnet JSON-RPCPublic Ethereum-compatible JSON-RPC endpoint for Berachain mainnet (chain ID 80094). Supports the standard ...ZeroDev JSON-RPC APIThe JSON-RPC API from ZeroDev — 1 operation(s) for json-rpc.Lit Network Node JSON-RPC (SDK-mediated)Threshold-cryptography network of Lit nodes accessed via the Lit JS SDK for signing, encryption, decryption...Acala EVM+ JSON-RPCAcala EVM+ exposes a standard Ethereum JSON-RPC API through the EVM+ RPC Adapter, which wraps Substrate RPC...Jake Gaylor A2A AgentA2A agent representing Jake Gaylor, discovered at /.well-known/agent-card.json on ai.jakegaylor.com (and as...Bitfinity EVM JSON-RPCStandard Ethereum JSON-RPC 2.0 interface to the Bitfinity EVM mainnet (Chain ID 355110). Supports the stand...Ancient8 Mainnet JSON-RPCPublic Ethereum JSON-RPC interface for the Ancient8 Mainnet (chain ID 888888888, currency ETH), available o...Ancient8 Testnet JSON-RPC (Celestia)Public Ethereum JSON-RPC interface for the Ancient8 Celestia testnet (chain ID 28122024, currency ETH), ava...Dash Platform DAPI (Decentralized API)Decentralized HTTP API exposing gRPC and JSON-RPC endpoints for both Dash Core layer 1 and Dash Platform la...Cypherium JSON-RPC APIEthereum-compatible JSON-RPC node API for the Cypherium Layer-1 mainnet — eth, web3, net, personal, miner, ...Ronin JSON-RPC (Mainnet)Standard Ethereum-style JSON-RPC endpoint for Ronin mainnet (chain ID 2020). Used by wallets, games, dApps,...Ronin JSON-RPC (Saigon Testnet)JSON-RPC endpoint for the Saigon testnet (chain ID 2021), used for development, integration testing, and dA...Goldsky Edge RPCHigh-performance JSON-RPC service for EVM networks with advanced debugging and tracing methods. Used as a d...
Minimal 2 Almost no public developer surface
Companies reaching this through an API (66)
These companies publish an API, specification or operation carrying “JSON-RPC” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
0G Labs
1inch
A2A402
A2APark
Alchemy
allagents
Blast
Blockdaemon
Chainstack
Coda Payments
Dash
Deribit
Direct Hire
Envio
EOSIO
Filecoin
Finn-tannlege
Flipside Crypto
Futureverse
Glama
Goldsky
Hegic
Helius
Hyperliquid
Infura
Jake Gaylor
Lit Protocol
MERCURY
Morph
NameWhisper
NetApp
Nutshell
Odoo
p0stman
Parallel Finance
Perkoon
Privy
Push Protocol
Qlik
Qlik Sense
Qlik Sense Enterprise
QuickNode
Reown
Routescan (Snowtrace)
Sei
Shapeshift
SharpSpring
SignalWire
SINCOR
Sui
Show all 66 companies ↓
Score breakdown
Frequency
61.9
log-scaled weighted occurrences
Breadth
1.3
spread across providers
Quality lift
30.6
mean composite of providers using it
Cohesion
16.4
strength of nearest seed neighbor
Related tags
EVM 35 co-occurrences
Layer 2 23 co-occurrences
Ethereum 43 co-occurrences
Smart Contracts 30 co-occurrences
Web3 67 co-occurrences
Blockchain 73 co-occurrences
Where this tag comes from
Api tag157
Provider tag59
Openapi tag13
Openapi op tag13
Cohort brief
Auto-generatedThe 58 providers in the APIs.io catalog tagged JSON-RPC, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
58
all scored
Mean Kin Score
29.2
+7.0 vs catalog 22.2
Mean Agent Readiness
14.7
+2.7 vs catalog 12
Spread
10.2–48.6
median 27.8 · σ 9.6
How the 58 split by band
Exemplar 0Strong 0Developing 10Thin 24Emerging 22Minimal 2
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 47.5 | 23.2 | +24.3 | 58 |
| Discoverability | 70.8 | 57.9 | +12.9 | 58 |
| Operational Transparency | 22.4 | 13 | +9.4 | 58 |
| Contract Governance | 11.2 | 6.5 | +4.7 | 58 |
| Contract Quality | 21.3 | 17.2 | +4.1 | 58 |
| Access Clarity | 14.9 | 23.9 | -9 | 58 |
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) | 21% | 13% | +8 |
| MCP server (first-party) | 24% | 12% | +12 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 3% | 11% | -8 |
| Security | 100% | 98% | +2 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 17% | 16% | +1 |
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 Kusama 48.6
- 2 Moz 46.9
- 3 GRITH 44.9
- 4 Gunzilla Games 44.7
- 5 Zircuit 43.4
- 6 Mysten Labs 43
- 7 ThunderCore 40.8
- 8 Consensys 40.7
- 9 Linea 40.5
- 10 InfStones 39.7
Top by Agent Readiness
- 1 Mysten Labs 48.6
- 2 Flashbots 47.8
- 3 Moz 34.9
- 4 Nervos 34.9
- 5 Mycelnet 30.9
- 6 Tendermint 30.3
- 7 Optimism 30.1
- 8 Gunzilla Games 29.3
- 9 Monad 29
- 10 Base 29
All 58 members of this roster resolve to a scored provider in
the catalog.
Coverage caveat. 54 of 58 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 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.
Coverage caveat. 54 of 58 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 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.