niche · -1.3 capability schema

RPC

Score 19.2 / 100 32 providers +29 via APIs 46 APIs Search apis.io →
Business capabilities this tag reaches
Information Technology Management 1

Providers using this tag (32)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 2 Solid coverage with minor gaps
ChainstackBlockchainMulti-ChainNode Infrastructure25 APIs54.4BlockdaemonBlockchainWeb3StakingValidator15 APIs56.5
Developing 7 Usable, with meaningful gaps to close
tRPCAPI CompositionAPI FrameworkBFFEnd-to-End Type Safety1 API48.5Pocket NetworkWeb3BlockchainDecentralized Infrastructure3 APIs47.6Triton OneSolanaBlockchainWeb33 APIs46.0InfStonesCompanyBlockchainNode InfrastructureStaking1 API43.8gRPCCNCFHTTP/2MicroservicesProtocol Buffers1 API43.0NoLimitNodesCompanySolanaData Streams1 API42.8Apache DubboApacheGoJavaMicroservices1 API42.3
Thin 13 Limited public surface area
BlockReqCompanyBlockchainEVM3 APIs38.5DwellirBlockchainInfrastructureWeb32 APIs36.0QuickNodeWeb3BlockchainStreams3 APIs35.4SyndicaSolanaBlockchainWeb34 APIs34.4HeliusWeb3BlockchainSolana1 API33.3Apache ThriftCode GenerationCross-LanguageIDL2 APIs32.8AlchemyWeb3BlockchainNFT1 API31.9@imqueueMessagingTypeScriptNode.js2 APIs31.4TatumWeb3BlockchainMulti-Chain1 API28.8InfuraWeb3BlockchainInfrastructure1 API27.2ReownWeb3WalletsWalletConnectAppKit1 API30.6Chain.LoveWeb3 InfrastructureIndexingOracle1 API30.2Iron FishBlockchainCryptocurrencyPrivacyZero Knowledge1 API27.6
Emerging 7 Early or largely undocumented
Apache ThriftApacheCode GenerationCross-LanguageOpen Source1 API24.4TwirpProtocol BuffersGoSDK1 API21.1KitexFrameworkGoHigh PerformanceMicroservices1 API20.6NamekoAMQPDependency InjectionFrameworkMicroservices1 API16.5Connect-RPCApache 2.0BufCode GenerationConnect Protocol5 APIs12.5Cap'n ProtoBinary FormatCapability-Based SecurityCode GenerationIPC5 APIs11.61inchDeFiDEX AggregatorSwapLimit Orders15 APIs20.3
Minimal 3 Almost no public developer surface
GoldskyBlockchain DataIndexerSubgraphChange Data Capture8 APIs10.2Go MicroDistributed SystemsFrameworkGoMicroservices1 API10.0NZBGetUsenetDownloaderCross-Platform9.8

APIs with this tag (46)

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
Matomo Reporting API (index.php entrypoint)The single /index.php dispatch entrypoint through which every Matomo Reporting API method is invoked, by su...70.7
Strong 4 Solid coverage with minor gaps
Heroic Labs Rpc APIThe Rpc API from Heroic Labs — 131 operation(s) for rpc.63.2flexyield-io Rpc APIThe Rpc API from flexyield-io — 1 operation(s) for rpc.57.3Juniper Networks RPC APIExecute Junos RPC commands57.3Blockdaemon RPC APIProduction-ready shared and dedicated JSON-RPC and REST node endpoints across 50+ protocols including Bitco...56.5
Developing 12 Usable, with meaningful gaps to close
Chainflip Broker as a Service Rpc APIA Chainflip broker JSON-RPC endpoint for the Chainflip SDK and other broker clients: point their broker URL...49.4Supabase RPC APIInvoke PostgreSQL functions via remote procedure calls.48.7Akash Chain Node (gRPC / REST / RPC)Direct access to the Akash Cosmos-SDK chain over gRPC, REST (LCD), and Tendermint RPC. Used to query state,...48.0Cubist RPC APIThe RPC API from Cubist — 1 operation(s) for rpc.47.1Horizon Blockchain Games Rpc APIThe Rpc API from Horizon Blockchain Games — 32 operation(s) for rpc.45.5Golioth Remote Procedure Call (RPC)Bidirectional remote-procedure-call service. The cloud invokes device-side methods registered by firmware a...44.6Quant Network RPC APIJSON-RPC proxy to the Fusion L2 (OP-Geth) **only**. For JSON-RPC against any other connected chain, use the...43.2gRPC Core FrameworkThe gRPC core framework defines the RPC protocol, service definition format using Protocol Buffers, and the...43.0Apache Dubbo Go SDKThe Go implementation of Apache Dubbo, providing the same RPC framework capabilities including service disc...42.3Apache Dubbo Java SDKThe core Apache Dubbo Java framework providing RPC service definition, publishing, invocation, and service ...42.3Sequence Rpc APIThe Rpc API from Sequence — 32 operation(s) for rpc.40.1Stellar RPC APIThe Stellar RPC API (formerly Soroban RPC) is a JSON-RPC interface for interacting with Soroban smart contr...40.0
Thin 15 Limited public surface area
Agent Failure Mode Registry Rpc APIThe Rpc API from Agent Failure Mode Registry — 1 operation(s) for rpc.38.6BlockReq build APIBlockReq build API as documented publicly: 16 operations. Contract generated from the documentation by API ...38.5Avalanche RPC APIRemote procedure calls for Avalanche Platform Chain operations including UTXO queries, transaction submissi...36.4AT Protocol XRPC APIXRPC is the AT Protocol's HTTP-based remote procedure call layer. All protocol interactions — querying reco...36.1Syndica Sig Validator RPC APISig is Syndica's open-source Solana validator client implemented in Zig, built for performance, modular RPC...34.4Syndica Solana RPC (HTTP) APIHigh-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node architecture acro...34.4Syndica Solana RPC (WebSocket) APIStandard Solana RPC PubSub WebSocket service supporting accountSubscribe, programSubscribe, signatureSubscr...34.4Apache Thrift IDLThe Thrift Interface Definition Language (IDL) is used to define data types and service interfaces in a lan...32.8Apache Thrift Server APIThe Thrift Server API provides server implementations for hosting Thrift services including TSimpleServer (...32.8Temporal Nexus APITemporal Nexus connects Temporal applications across namespaces and teams via named Nexus endpoints backed ...32.1Nakama RPC APICall custom runtime functions.31.9Filebase IPFS RPC APIThe Filebase IPFS RPC API exposes core IPFS daemon functionality through an HTTP interface. Bucket-specific...31.7Routescan Geth/Parity Proxy APIEthereum JSON-RPC compatible proxy endpoints for standard methods including eth_blockNumber, eth_getBlockBy...31.5Monad RPC ProvidersRegistry of third-party RPC providers supporting Monad — QuickNode, Alchemy, Goldsky Edge, Ankr, MonadInfra...29.2Apache Arrow Flight RPCArrow Flight is a high-performance RPC framework built on gRPC for transferring large datasets using the Ar...28.5
Emerging 13 Early or largely undocumented
Gram (by Speakeasy) APIGram (by Speakeasy) API as documented publicly: 11 operations. Contract generated from the documentation by...26.0GMX TypeScript SDKOfficial @gmx-io/sdk package shipping two clients: GmxSdk (SDK v1) for full read/write access via RPC, and ...25.4Ergonia Works Rpc APIThe Rpc API from Ergonia Works — 2 operation(s) for rpc.25.0Zora Network RPC APIJSON-RPC access to the Zora Network L2 chain (Chain ID 7777777), an OP Stack rollup on Ethereum. Compatible...24.6Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...24.4Apache TVM RPC APIThe TVM RPC (Remote Procedure Call) system enables remote compilation, deployment, and profiling of optimiz...24.45ireChain Native (Substrate) RPCSubstrate/Polkadot-SDK RPC surface of the 5ireChain node, reached over WebSocket (default port 9944) and co...23.6Foundation Smart Contract APIEthereum smart contract interface for direct on-chain interaction with Foundation marketplace contracts. Su...22.4Twirp RPC FrameworkTwirp is a simple RPC framework with protobuf service definitions. Define your service in a .proto file and...21.1KitexKitex is a high-performance, extensible RPC framework for building microservices in Go, developed by ByteDa...20.61inch Web3 RPC APIHosted JSON-RPC endpoints for 14+ EVM and non-EVM networks, exposed through the 1inch API key for unified r...20.3NamekoNameko is a microservices framework for Python that provides tools for building, testing, and running servi...16.5Cap'n Proto RPC ProtocolCap'n Proto's RPC protocol is a capability-based RPC layer that supports promise pipelining, object referen...11.6
Minimal 1 Almost no public developer surface
Go MicroGo Micro is a distributed systems framework for building microservices in Go, providing service discovery, ...10.0

Companies reaching this through an API (29)

These companies publish an API, specification or operation carrying “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.

5ire Agent Failure Mode Registry Akash Network Apache Arrow Apache TVM AT Protocol Avalanche Chainflip Broker as a Service Cubist Ergonia Works Filebase flexyield-io Foundation GMX Golioth Gram (by Speakeasy) Heroic Labs Horizon Blockchain Games Juniper Networks Matomo Monad Nakama Quant Network Routescan (Snowtrace) Sequence Stellar Supabase Temporal Zora

Score breakdown

Frequency
48.3
log-scaled weighted occurrences
Breadth
0.4
spread across providers
Quality lift
31.3
mean composite of providers using it
Cohesion
5.3
strength of nearest seed neighbor

Related tags

Multi-Chain 9 co-occurrences JSON-RPC 16 co-occurrences Validator 7 co-occurrences Staking 8 co-occurrences NFT 12 co-occurrences EVM 7 co-occurrences Go 6 co-occurrences Web3 29 co-occurrences

Where this tag comes from

Provider tag32
Api tag44
Openapi tag10
Openapi op tag14

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

MarketShare of the market's providers
Blockchain Node and RPC Infrastructure50%

Cohort brief

Auto-generated

The 31 providers in the APIs.io catalog tagged RPC, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
31
of 32 in the catalog
Mean Kin Score
31.9
+7.8 vs catalog 24.1
Mean Agent Readiness
17.1
+3.0 vs catalog 14.1
Spread
10–56.5
median 31.9 · σ 12.5
How the 31 split by band
Exemplar 0Strong 2Developing 7Thin 13Emerging 7Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 32.8 18.6 +14.2 31
Developer Ergonomics 35.8 24.5 +11.3 31
Operational Transparency 24 13.2 +10.8 31
Discoverability 65.9 59.1 +6.8 31
Contract Governance 15.4 9.7 +5.7 31
Access Clarity 22 30 -8 31

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
ArtifactThis cohortCatalogDifference
MCP server (any) 13% 18% -5
MCP server (first-party) 13% 16% -3
Agent Skills 0% 0% 0
OAuth scopes 0% 13% -13
Security 94% 99% -5
Arazzo workflows 3% 1% +2
Governance rules 84% 36% +48

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. 1 Blockdaemon 56.5
  2. 2 Chainstack 54.4
  3. 3 tRPC 48.5
  4. 4 Pocket Network 47.6
  5. 5 Triton One 46
  6. 6 InfStones 43.8
  7. 7 gRPC 43
  8. 8 NoLimitNodes 42.8
  9. 9 Apache Dubbo 42.3
  10. 10 BlockReq 38.5
Top by Agent Readiness
  1. 1 Blockdaemon 47.6
  2. 2 BlockReq 39.3
  3. 3 Alchemy 38.3
  4. 4 Helius 32.8
  5. 5 Chainstack 29.2
  6. 6 Tatum 25.1
  7. 7 Infura 24
  8. 8 Triton One 23.9
  9. 9 Reown 23.9
  10. 10 Dwellir 22.5
All 32 members of this roster resolve to a provider in the catalog; 31 carry a score (97%). The figures above describe the scored members only.
Coverage caveat. 21 of 31 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 14 November 2026, across 41591 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

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MCP server

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https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

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