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Syndica

Syndica is a Solana-only infrastructure company building developer infrastructure for Web3. Its production platform provides fault-tolerant, load-balanced Solana JSON-RPC over HTTP and WebSocket from four global regions, plus ChainStream — a real-time JSON-RPC streaming API that consolidates transaction, slot, and block updates from multiple validators using a "fastest wins" strategy with optional cross-validator verification. Syndica also operates a 0%-commission Solana staking validator running Jito-Solana for MEV optimization, publishes Solana protocol research, and develops Sig — an open-source Solana validator client written in Zig — together with companion libraries (rocksdb-zig, lsquic, boringssl-zig, zstd.zig, base58-zig) under the Apache-2.0 license.

4 APIs 13 Features
SolanaBlockchainWeb3RPCStreamingInfrastructureValidatorStaking

APIs

Syndica Solana RPC (HTTP) API

High-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node architecture across four global regions (Northern Virginia, Oregon, London, Singapore)....

Syndica Solana RPC (WebSocket) API

Standard Solana RPC PubSub WebSocket service supporting accountSubscribe, programSubscribe, signatureSubscribe, slotSubscribe, blockSubscribe, logsSubscribe, and rootSubscribe. ...

Syndica ChainStream API

ChainStream is Syndica's real-time Solana data streaming API. It consolidates updates from multiple validators using a "fastest wins" strategy so the subscriber benefits from th...

Syndica Sig Validator RPC API

Sig is Syndica's open-source Solana validator client implemented in Zig, built for performance, modular RPC, and read-optimized operation. The project exposes a Solana-compatibl...

Features

Solana JSON-RPC over HTTP — fault-tolerant, load-balanced elastic-node architecture
Solana JSON-RPC PubSub over WebSocket — accountSubscribe, programSubscribe, signatureSubscribe, slotSubscribe, blockSubscribe, logsSubscribe, rootSubscribe
ChainStream real-time streaming API — transactionsSubscribe, slotsSubscribe, blocksSubscribe over WebSocket JSON-RPC 2.0 at wss://chainstream.api.syndica.io
ChainStream "fastest wins" multi-validator consolidation for lower latency and no-miss delivery
ChainStream `verified` parameter for cross-validator confirmation at `processed` commitment
Edge gateway routing across four global regions — Northern Virginia, Oregon, London, Singapore
Per-credential (API key) custom rate-limit rules — per-method, per-IP, per-credential
Detailed observability — RPC call logging, performance metrics, usage insights, analytics dashboard
99.99% uptime SLA on production endpoints; billions of RPC requests served monthly
10M free RPC requests per month entry tier; enterprise pricing via Cost Estimator
Open-source Sig validator client written in Zig (Apache-2.0) for read-optimized validator operation
Solana staking validator with 0% commission, MEV optimization via Jito-Solana client
Research arm publishing Solana protocol and consensus research

Use Cases

High-frequency Solana trading

Power on-chain trading bots, market makers, and liquidation engines with low-latency ChainStream notifications — production users have cut limit-order time-to-fill from 10s to 300ms.

DEX and DeFi backends

Stream account, program, and signature updates for AMMs, perps, and lending protocols without running self-hosted validator infrastructure.

Wallet and explorer infrastructure

Serve high-volume getAccountInfo, getTransaction, and getSignaturesForAddress traffic from Syndica's load-balanced HTTP RPC fleet.

Indexers and data warehouses

Continuously ingest Solana transactions, slots, and blocks via ChainStream into ClickHouse, BigQuery, or self-hosted Postgres for analytics.

NFT mint and marketplace tooling

Subscribe to program-derived account changes for real-time mint, list, sale, and bid detection.

Solana staking

Delegate SOL to the Syndica validator (0% commission, Jito-Solana client, MEV optimization) for self-custody staking rewards.

Solana protocol R&D

Build on top of, or contribute to, Sig — Syndica's open-source Zig validator client — and consume its companion libraries (rocksdb-zig, lsquic, boringssl-zig).

Integrations

Solana mainnet-beta

Drop-in replacement for `api.mainnet-beta.solana.com` HTTP and WebSocket endpoints.

Solana web3.js

Use Syndica's RPC URL directly with `@solana/web3.js` `Connection` and `PublicKey` flows.

solana-cli

Configure `solana config set --url https://solana-mainnet.api.syndica.io/api-key/` for CLI access.

Anchor framework

Point Anchor's provider at a Syndica RPC URL for Solana program development.

Helius / Triton / QuickNode workflows

Mix-and-match providers — Syndica positions itself as the Solana-only specialist alongside multi-chain RPC vendors.

Jito-Solana

Syndica's validator runs the Jito-Solana client for MEV-aware block production.

GitHub

Open-source Sig validator and companion Zig libraries are developed publicly under the Syndica GitHub organization.

Solutions

Solana RPC (Shared)

Multi-tenant Solana JSON-RPC HTTP and WebSocket endpoints with 10M free monthly requests, credential-level rate limits, and global edge routing.

ChainStream

Premium real-time Solana data streaming API consolidating updates from multiple validators with "fastest wins" routing and optional cross-validator verification.

Enterprise / Dedicated

Custom RPC capacity, dedicated nodes, ChainStream throughput, and SLA — priced via the Cost Estimator and direct sales.

Staking

Delegate SOL to the Syndica validator (0% commission, Jito-Solana, MEV optimization) with full self-custody.

Sig (Open Source)

Syndica's open-source Zig Solana validator client, plus companion libraries — free to use and contribute to.

Research

Syndica Research Library — public protocol and consensus research alongside the Research Blog tag.

Resources

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Sources

apis.yml Raw ↑
aid: syndica
url: https://raw.githubusercontent.com/api-evangelist/syndica-io/refs/heads/main/apis.yml
apis:
- aid: syndica:syndica-solana-rpc-http-api
  name: Syndica Solana RPC (HTTP) API
  tags:
  - Solana
  - RPC
  - Blockchain
  - JSON-RPC
  - HTTP
  humanURL: https://docs.syndica.io/platform/solana-rpc/overview
  baseURL: https://solana-mainnet.api.syndica.io
  properties:
  - url: https://docs.syndica.io/platform/solana-rpc/overview
    type: Documentation
  - url: https://docs.syndica.io/platform/getting-started/make-your-first-rpc-call
    type: Quickstart
  - url: https://docs.syndica.io/platform/concepts/api-keys
    type: Authentication
  - url: https://blog.syndica.io/credential-rate-limits-manage-and-secure-your-solana-rpc-endpoints-using-custom-rules/
    type: RateLimits
  - url: https://github.com/Syndica/solana-rpc-demo
    type: SampleCode
  description: High-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node
    architecture across four global regions (Northern Virginia, Oregon, London, Singapore). Supports the
    full standard Solana RPC method surface (getAccountInfo, getBalance, getTransaction, sendTransaction,
    getProgramAccounts, getSignaturesForAddress, etc.) with credential-level rate limits, per-method
    routing rules, and observability (detailed logging, performance metrics, usage insights).
- aid: syndica:syndica-solana-rpc-websocket-api
  name: Syndica Solana RPC (WebSocket) API
  tags:
  - Solana
  - RPC
  - Blockchain
  - WebSocket
  - PubSub
  - Streaming
  humanURL: https://docs.syndica.io/platform/getting-started/subscribe-to-websocket-events
  baseURL: wss://solana-mainnet.api.syndica.io
  properties:
  - url: https://docs.syndica.io/platform/getting-started/subscribe-to-websocket-events
    type: Documentation
  - url: https://docs.syndica.io/platform/solana-rpc/websocket/blockSubscribe
    type: APIReference
  - url: https://docs.syndica.io/platform/concepts/api-keys
    type: Authentication
  description: Standard Solana RPC PubSub WebSocket service supporting accountSubscribe, programSubscribe,
    signatureSubscribe, slotSubscribe, blockSubscribe, logsSubscribe, and rootSubscribe. Provides a drop-in
    replacement for `wss://api.mainnet-beta.solana.com` with Syndica's edge routing, validator
    consolidation, and per-credential rate limits.
- aid: syndica:syndica-chainstream-api
  name: Syndica ChainStream API
  tags:
  - Solana
  - ChainStream
  - Streaming
  - WebSocket
  - JSON-RPC
  - Real Time
  - Blockchain
  humanURL: https://docs.syndica.io/platform/chainstream-api/
  baseURL: wss://chainstream.api.syndica.io
  properties:
  - url: https://docs.syndica.io/platform/chainstream-api/
    type: Documentation
  - url: https://docs.syndica.io/platform/chainstream-api/slot-subscriptions
    type: APIReference
  - url: https://docs.syndica.io/platform/concepts/api-keys
    type: Authentication
  - url: https://syndica.io/infrastructure/chainstream
    type: ProductPage
  - url: https://blog.syndica.io/solana-data-streaming-how-to-power-your-dapp-with-real-time-data/
    type: Blog
  description: ChainStream is Syndica's real-time Solana data streaming API. It consolidates updates from
    multiple validators using a "fastest wins" strategy so the subscriber benefits from the lowest-latency
    notification across the validator set, and offers an optional `verified` parameter that delivers only
    transactions confirmed by multiple validators at `processed` commitment. ChainStream uses JSON-RPC
    2.0 over WebSocket (`wss://chainstream.api.syndica.io/api-key/<API_KEY>`) and supports
    `transactionsSubscribe`, `slotsSubscribe`, and encoded `blocksSubscribe` against `solana-mainnet`
    (devnet coming). Production users have cut limit-order time-to-fill from 10s to 300ms with it.
- aid: syndica:syndica-sig-validator-rpc-api
  name: Syndica Sig Validator RPC API
  tags:
  - Solana
  - Validator
  - Sig
  - Zig
  - Open Source
  - RPC
  humanURL: https://github.com/Syndica/sig
  properties:
  - url: https://github.com/Syndica/sig
    type: GitHubRepository
  - url: https://sig.fun/
    type: Documentation
  - url: https://syndica.io/open-source/sig
    type: ProductPage
  - url: https://blog.syndica.io/tag/sig/
    type: Blog
  - url: https://blog.syndica.io/a-solana-validator-client-explained-everything-you-need-to-know/
    type: Blog
  description: Sig is Syndica's open-source Solana validator client implemented in Zig, built for
    performance, modular RPC, and read-optimized operation. The project exposes a Solana-compatible RPC
    surface and is being developed in the open under the Apache-2.0 license, with companion libraries
    rocksdb-zig, lsquic, boringssl-zig, zstd.zig, and base58-zig in the same GitHub organization.
name: Syndica
tags:
- Solana
- Blockchain
- Web3
- RPC
- Streaming
- Infrastructure
- Validator
- Staking
kind: contract
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
access: 3rd-Party
common:
- url: https://syndica.io
  type: Portal
- url: https://syndica.io/enterprise
  name: Enterprise Portal
  type: Portal
- url: https://docs.syndica.io
  type: Documentation
- url: https://docs.syndica.io/platform/staking/overview
  name: Stake Docs
  type: Documentation
- url: https://docs.syndica.io/platform/faq
  type: FAQ
- url: https://docs.syndica.io/platform/support
  type: Support
- url: https://status.syndica.io
  type: StatusPage
- url: https://blog.syndica.io/
  type: Blog
- url: https://syndica.io/research?n=library
  name: Research Library
  type: Research
- url: https://syndica.io/company/about-us
  type: AboutUs
- url: https://syndica.io/company/contact-us
  type: ContactUs
- url: https://syndica.io/company/careers
  type: Careers
- url: https://syndica.io/enterprise
  name: Contact Sales
  type: SignUp
- url: https://syndica.io/enterprise/calculator
  name: Cost Estimator
  type: Pricing
- url: https://syndica.io/stake
  name: Stake With Syndica
  type: ProductPage
- url: https://syndica.io/open-source/sig
  name: Sig Validator
  type: OpenSource
- url: https://sig.fun/
  name: Sig Docs
  type: Documentation
- url: https://github.com/Syndica
  type: GitHubOrganization
- url: https://github.com/Syndica/sig
  name: Sig Validator (Zig)
  type: GitHubRepository
- url: https://github.com/Syndica/solana-rpc-demo
  name: Solana RPC Demo (Rust)
  type: GitHubRepository
- url: https://github.com/Syndica/rocksdb-zig
  name: rocksdb-zig
  type: GitHubRepository
- url: https://www.linkedin.com/company/syndica-io
  type: LinkedIn
- url: https://twitter.com/Syndica_io
  type: X-Twitter
- url: mailto:[email protected]
  name: [email protected]
  type: Support
- type: Features
  data:
  - Solana JSON-RPC over HTTP — fault-tolerant, load-balanced elastic-node architecture
  - Solana JSON-RPC PubSub over WebSocket — accountSubscribe, programSubscribe, signatureSubscribe,
    slotSubscribe, blockSubscribe, logsSubscribe, rootSubscribe
  - ChainStream real-time streaming API — transactionsSubscribe, slotsSubscribe, blocksSubscribe over
    WebSocket JSON-RPC 2.0 at wss://chainstream.api.syndica.io
  - ChainStream "fastest wins" multi-validator consolidation for lower latency and no-miss delivery
  - ChainStream `verified` parameter for cross-validator confirmation at `processed` commitment
  - Edge gateway routing across four global regions — Northern Virginia, Oregon, London, Singapore
  - Per-credential (API key) custom rate-limit rules — per-method, per-IP, per-credential
  - Detailed observability — RPC call logging, performance metrics, usage insights, analytics dashboard
  - 99.99% uptime SLA on production endpoints; billions of RPC requests served monthly
  - 10M free RPC requests per month entry tier; enterprise pricing via Cost Estimator
  - Open-source Sig validator client written in Zig (Apache-2.0) for read-optimized validator operation
  - Solana staking validator with 0% commission, MEV optimization via Jito-Solana client
  - Research arm publishing Solana protocol and consensus research
  sources:
  - https://syndica.io
  - https://syndica.io/enterprise
  - https://docs.syndica.io/platform/chainstream-api/
  - https://docs.syndica.io/platform/solana-rpc/overview
  - https://blog.syndica.io/credential-rate-limits-manage-and-secure-your-solana-rpc-endpoints-using-custom-rules/
  - https://github.com/Syndica/sig
  updated: '2026-05-25'
- type: UseCases
  data:
  - name: High-frequency Solana trading
    description: Power on-chain trading bots, market makers, and liquidation engines with low-latency
      ChainStream notifications — production users have cut limit-order time-to-fill from 10s to 300ms.
  - name: DEX and DeFi backends
    description: Stream account, program, and signature updates for AMMs, perps, and lending protocols
      without running self-hosted validator infrastructure.
  - name: Wallet and explorer infrastructure
    description: Serve high-volume getAccountInfo, getTransaction, and getSignaturesForAddress traffic
      from Syndica's load-balanced HTTP RPC fleet.
  - name: Indexers and data warehouses
    description: Continuously ingest Solana transactions, slots, and blocks via ChainStream into
      ClickHouse, BigQuery, or self-hosted Postgres for analytics.
  - name: NFT mint and marketplace tooling
    description: Subscribe to program-derived account changes for real-time mint, list, sale, and bid
      detection.
  - name: Solana staking
    description: Delegate SOL to the Syndica validator (0% commission, Jito-Solana client, MEV
      optimization) for self-custody staking rewards.
  - name: Solana protocol R&D
    description: Build on top of, or contribute to, Sig — Syndica's open-source Zig validator client —
      and consume its companion libraries (rocksdb-zig, lsquic, boringssl-zig).
  sources:
  - https://syndica.io
  - https://syndica.io/enterprise
  - https://docs.syndica.io/platform/chainstream-api/
  - https://syndica.io/stake
  updated: '2026-05-25'
- type: Integrations
  data:
  - name: Solana mainnet-beta
    description: Drop-in replacement for `api.mainnet-beta.solana.com` HTTP and WebSocket endpoints.
  - name: Solana web3.js
    description: Use Syndica's RPC URL directly with `@solana/web3.js` `Connection` and `PublicKey`
      flows.
  - name: solana-cli
    description: Configure `solana config set --url https://solana-mainnet.api.syndica.io/api-key/<KEY>`
      for CLI access.
  - name: Anchor framework
    description: Point Anchor's provider at a Syndica RPC URL for Solana program development.
  - name: Helius / Triton / QuickNode workflows
    description: Mix-and-match providers — Syndica positions itself as the Solana-only specialist
      alongside multi-chain RPC vendors.
  - name: Jito-Solana
    description: Syndica's validator runs the Jito-Solana client for MEV-aware block production.
  - name: GitHub
    description: Open-source Sig validator and companion Zig libraries are developed publicly under the
      Syndica GitHub organization.
  sources:
  - https://syndica.io
  - https://github.com/Syndica
  - https://syndica.io/stake
  updated: '2026-05-25'
- type: Solutions
  data:
  - name: Solana RPC (Shared)
    description: Multi-tenant Solana JSON-RPC HTTP and WebSocket endpoints with 10M free monthly
      requests, credential-level rate limits, and global edge routing.
  - name: ChainStream
    description: Premium real-time Solana data streaming API consolidating updates from multiple
      validators with "fastest wins" routing and optional cross-validator verification.
  - name: Enterprise / Dedicated
    description: Custom RPC capacity, dedicated nodes, ChainStream throughput, and SLA — priced via
      the Cost Estimator and direct sales.
  - name: Staking
    description: Delegate SOL to the Syndica validator (0% commission, Jito-Solana, MEV optimization)
      with full self-custody.
  - name: Sig (Open Source)
    description: Syndica's open-source Zig Solana validator client, plus companion libraries — free
      to use and contribute to.
  - name: Research
    description: Syndica Research Library — public protocol and consensus research alongside the
      Research Blog tag.
  sources:
  - https://syndica.io
  - https://syndica.io/enterprise
  - https://syndica.io/enterprise/calculator
  - https://syndica.io/stake
  - https://syndica.io/open-source/sig
  - https://syndica.io/research?n=library
  updated: '2026-05-25'
created: '2026-05-25T00:00:00.000Z'
modified: '2026-05-25'
position: Consuming
description: Syndica is a Solana-only infrastructure company building developer infrastructure for
  Web3. Its production platform provides fault-tolerant, load-balanced Solana JSON-RPC over HTTP and
  WebSocket from four global regions, plus ChainStream — a real-time JSON-RPC streaming API that
  consolidates transaction, slot, and block updates from multiple validators using a "fastest wins"
  strategy with optional cross-validator verification. Syndica also operates a 0%-commission Solana
  staking validator running Jito-Solana for MEV optimization, publishes Solana protocol research,
  and develops Sig — an open-source Solana validator client written in Zig — together with companion
  libraries (rocksdb-zig, lsquic, boringssl-zig, zstd.zig, base58-zig) under the Apache-2.0 license.
maintainers:
- FN: Kin Lane
  email: [email protected]
  X: apievangelist
  url: https://apievangelist.com
specificationVersion: '0.16'