emerging · 0.0 capability schemaaction

RPC

Score 22.1 / 100 27 providers +26 via APIs 43 APIs Search apis.io →
Variants seen in the corpus: RPCRpc

Providers using this tag (27)

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

Strong 2 Solid coverage with minor gaps
ChainstackBlockchainMulti-ChainNode Infrastructure25 APIs59.5Pocket NetworkWeb3BlockchainDecentralized Infrastructure3 APIs57.3
Developing 6 Usable, with meaningful gaps to close
Triton OneSolanaBlockchainWeb33 APIs48.0BlockdaemonBlockchainWeb3StakingValidators11 APIs47.4tRPCAPI CompositionAPI FrameworkBFFEnd-to-End Type Safety1 API46.9gRPCCNCFHTTP/2MicroservicesProtocol Buffers1 API45.7Pocket NetworkBlockchainDecentralizedWeb33 APIs44.1Apache DubboApacheGoJavaMicroservices1 API43.4
Thin 12 Limited public surface area
InfStonesCompanyBlockchainNode InfrastructureStaking1 API38.3SyndicaSolanaBlockchainWeb34 APIs37.7Apache ThriftCode GenerationCross-LanguageIDL2 APIs34.4QuickNodeWeb3BlockchainStreams3 APIs33.4ReownWeb3WalletsWalletConnectAppKit1 API32.3HeliusWeb3BlockchainSolana1 API32.2InfuraWeb3BlockchainInfrastructure1 API31.8TatumWeb3BlockchainMulti-Chain1 API30.2AlchemyWeb3BlockchainNFT12 APIs30.11inchDeFiDEX AggregatorSwapLimit Orders15 APIs28.2Iron FishBlockchainCryptocurrencyPrivacyZero Knowledge1 API27.4Apache ThriftApacheCode GenerationCross-LanguageOpen-Source1 API26.4
Emerging 7 Early or largely undocumented
KitexFrameworksGoHigh PerformanceMicroservices1 API24.9TwirpProtocol BuffersGoSDK1 API22.4NamekoAMQPDependency InjectionFrameworksMicroservices1 API20.8GoldskyBlockchain DataIndexerSubgraphsChange Data Capture8 APIs19.7Connect-RPCApache 2.0BufCode GenerationConnect Protocol5 APIs16.7Cap'n ProtoBinary FormatCapability-Based SecurityCode GenerationIPC5 APIs15.8Go MicroDistributed SystemsFrameworksGoGolang1 API14.5

APIs with this tag (43)

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
Heroic Labs Rpc APIThe Rpc API from Heroic Labs — 131 operation(s) for rpc.67.9Matomo Reporting API (index.php entrypoint)The single /index.php dispatch entrypoint through which every Matomo Reporting API method is invoked, by su...66.7TextQL Public RPC APIThe full public Connect-RPC surface of the TextQL platform, generated from the protobuf service definitions...66.6
Developing 17 Usable, with meaningful gaps to close
Stellar RPC APIThe Stellar RPC API (formerly Soroban RPC) is a JSON-RPC interface for interacting with Soroban smart contr...49.8Cubist RPC APIThe RPC API from Cubist — 1 operation(s) for rpc.47.7AT Protocol XRPC APIXRPC is the AT Protocol's HTTP-based remote procedure call layer. All protocol interactions — querying reco...47.5Blockdaemon RPC APIProduction-ready shared and dedicated JSON-RPC and REST node endpoints across 50+ protocols including Bitco...47.4Golioth Remote Procedure Call (RPC)Bidirectional remote-procedure-call service. The cloud invokes device-side methods registered by firmware a...47.0Avalanche RPC APIRemote procedure calls for Avalanche Platform Chain operations including UTXO queries, transaction submissi...46.8Horizon Blockchain Games Rpc APIThe Rpc API from Horizon Blockchain Games — 32 operation(s) for rpc.46.7gRPC Core FrameworkThe gRPC core framework defines the RPC protocol, service definition format using Protocol Buffers, and the...45.7Nakama RPC APICall custom runtime functions.44.1Akash Chain Node (gRPC / REST / RPC)Direct access to the Akash Cosmos-SDK chain over gRPC, REST (LCD), and Tendermint RPC. Used to query state,...43.7Apache Dubbo Go SDKThe Go implementation of Apache Dubbo, providing the same RPC framework capabilities including service disc...43.4Apache Dubbo Java SDKThe core Apache Dubbo Java framework providing RPC service definition, publishing, invocation, and service ...43.4Juniper Networks RPC APIExecute Junos RPC commands43.0Supabase RPC APIInvoke PostgreSQL functions via remote procedure calls.42.5Routescan Geth/Parity Proxy APIEthereum JSON-RPC compatible proxy endpoints for standard methods including eth_blockNumber, eth_getBlockBy...40.6Filebase IPFS RPC APIThe Filebase IPFS RPC API exposes core IPFS daemon functionality through an HTTP interface. Bucket-specific...40.4Sequence Rpc APIThe Rpc API from Sequence — 32 operation(s) for rpc.39.7
Thin 14 Limited public surface area
Temporal Nexus APITemporal Nexus connects Temporal applications across namespaces and teams via named Nexus endpoints backed ...38.7Monad RPC ProvidersRegistry of third-party RPC providers supporting Monad — QuickNode, Alchemy, Goldsky Edge, Ankr, MonadInfra...37.7Syndica Sig Validator RPC APISig is Syndica's open-source Solana validator client implemented in Zig, built for performance, modular RPC...37.7Syndica Solana RPC (HTTP) APIHigh-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node architecture acro...37.7Syndica Solana RPC (WebSocket) APIStandard Solana RPC PubSub WebSocket service supporting accountSubscribe, programSubscribe, signatureSubscr...37.7Apache Thrift IDLThe Thrift Interface Definition Language (IDL) is used to define data types and service interfaces in a lan...34.4Apache Thrift Server APIThe Thrift Server API provides server implementations for hosting Thrift services including TSimpleServer (...34.4Zora Network RPC APIJSON-RPC access to the Zora Network L2 chain (Chain ID 7777777), an OP Stack rollup on Ethereum. Compatible...34.0GMX TypeScript SDKOfficial @gmx-io/sdk package shipping two clients: GmxSdk (SDK v1) for full read/write access via RPC, and ...33.9gRPC Reflection APIgRPC server reflection provides information about publicly-accessible gRPC services on a server, enabling d...33.7Foundation Smart Contract APIEthereum smart contract interface for direct on-chain interaction with Foundation marketplace contracts. Su...31.1Apache Arrow Flight RPCArrow Flight is a high-performance RPC framework built on gRPC for transferring large datasets using the Ar...29.61inch Web3 RPC APIHosted JSON-RPC endpoints for 14+ EVM and non-EVM networks, exposed through the 1inch API key for unified r...28.2Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...26.4
Emerging 9 Early or largely undocumented
Apache TVM RPC APIThe TVM RPC (Remote Procedure Call) system enables remote compilation, deployment, and profiling of optimiz...25.6KitexKitex is a high-performance, extensible RPC framework for building microservices in Go, developed by ByteDa...24.95ireChain Native (Substrate) RPCSubstrate/Polkadot-SDK RPC surface of the 5ireChain node, reached over WebSocket (default port 9944) and co...23.4gRPC and Protocol BuffersgRPC is a high-performance RPC framework using HTTP/2 and Protocol Buffers (Protobuf) as its IDL and wire f...22.5JSON-RPC 2.0JSON-RPC 2.0 is a stateless, light-weight remote procedure call (RPC) protocol encoded in JSON. It is widel...22.5Twirp RPC FrameworkTwirp is a simple RPC framework with protobuf service definitions. Define your service in a .proto file and...22.4NamekoNameko is a microservices framework for Python that provides tools for building, testing, and running servi...20.8Cap'n Proto RPC ProtocolCap'n Proto's RPC protocol is a capability-based RPC layer that supports promise pipelining, object referen...15.8Go MicroGo Micro is a distributed systems framework for building microservices in Go, providing service discovery, ...14.5

Companies reaching this through an API (26)

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 Akash Network Apache Arrow Apache TVM API Specifications AT Protocol Avalanche Cubist Filebase Foundation GMX Golioth Heroic Labs Horizon Blockchain Games Juniper Networks Matomo Monad Nakama Routescan (Snowtrace) Scalable Services Sequence Stellar Supabase Temporal TextQL Zora

Score breakdown

Frequency
53.4
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
38.2
mean composite of providers using it
Cohesion
6.1
strength of nearest seed neighbor

Related tags

JSON-RPC 16 co-occurrences Multi-Chain 8 co-occurrences Protocol Buffers 6 co-occurrences Staking 8 co-occurrences Validators 5 co-occurrences NFT 11 co-occurrences Go 6 co-occurrences Code Generation 6 co-occurrences

Where this tag comes from

Provider tag27
Api tag43
Openapi tag7
Openapi op tag69

Cohort brief

Auto-generated

The 27 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
27
all scored
Mean Kin Score
33.7
+9.8 vs catalog 23.9
Mean Agent Readiness
16.3
+4.3 vs catalog 12
Spread
14.5–59.5
median 32.2 · σ 12
How the 27 split by band
Exemplar 0Strong 2Developing 6Thin 12Emerging 7Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 35.7 19.8 +15.9 27
Operational Transparency 26.4 14 +12.4 27
Developer Ergonomics 32.6 23.4 +9.2 27
Contract Governance 13.2 6.4 +6.8 27
Discoverability 67.8 61.2 +6.6 27
Access Clarity 28.7 26.5 +2.2 27

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) 0% 10% -10
MCP server (first-party) 11% 13% -2
Agent Skills 0% 0% 0
OAuth scopes 0% 11% -11
Security 93% 97% -4
Arazzo workflows 4% 2% +2
Governance rules 74% 14% +60

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 Chainstack 59.5
  2. 2 Pocket Network 57.3
  3. 3 Triton One 48
  4. 4 Blockdaemon 47.4
  5. 5 tRPC 46.9
  6. 6 gRPC 45.7
  7. 7 Pocket Network 44.1
  8. 8 Apache Dubbo 43.4
  9. 9 InfStones 38.3
  10. 10 Syndica 37.7
Top by Agent Readiness
  1. 1 Alchemy 40.3
  2. 2 Helius 32.6
  3. 3 Chainstack 30.9
  4. 4 Infura 25.9
  5. 5 Tatum 25.4
  6. 6 InfStones 24.3
  7. 7 Reown 24.2
  8. 8 Apache Dubbo 23
  9. 9 Pocket Network 22.3
  10. 10 Triton One 22.3
All 27 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 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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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 →

Call it yourself

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This tag 
curl "https://apis.io/api/v1/tags/rpc"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/rpc"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/rpc/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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