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.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Syndica the way a machine reads it — 40 machine-readable artifacts across 4 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Syndica scores 37.1/100 (thin), with a separate agent-readiness read of 18/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
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How we profile Syndica
Each block below is one kind of artifact we hold for Syndica. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 4
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
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 13
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Scroll within the panel for all 13 ·
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Syndica Solana RPC PubSub & ChainStream WebSocket API
AsyncAPI 2.6 specification for Syndica's Solana WebSocket surface. Covers two products: 1. **Solana RPC PubSub** — JSON-RPC 2.0 subscriptions served from `wss://solana-mainnet.a...
ASYNCAPISpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Syndica API Rules
SPECTRALSecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Use Cases 7
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
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 3...
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).
Scroll within the panel for all 7 ·
Integrations 7
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
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/
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.
Scroll within the panel for all 7 ·
Solutions 6
Packaged solutions the provider offers on top of the raw API surface.
Packaged solutions this provider offers.
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
Every other property we hold for Syndica — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 5
The organization behind the API
Other 3
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/syndica-io · machine-readable index on apis.io
This is an independent, third-party profile of Syndica, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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