No Archival Nodes
Avoid the storage and operational cost of maintaining Solana history infrastructure.
IndexAPI v1 Live
Access token balances for any wallet, token, and slot height through a scalable Solana balance API.
FastCached, cheaper for repeated requests
AnalyticalAccurate financial reporting and blockchain analytics
AccurateToken balance queries indexed by Solana slot height
GET /api/v1/solana/token-balance/:address/:token/:slot
curl "https://solanaindex.top/api/v1/solana/token-balance/7tv...xyz/EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v/254891002" \
-H "Authorization: Bearer <api_key>"
# Response{
"balance": "5398.924408859",
"balanceRaw": "5398924408859",
"decimals": 9,
"slot": 413754398,
"address": "EqMawiRYydw2JRsgnMaqeJupohztDz1dJkF1BvPJCLwJ",
"token": "BcJgLEF5viPPgRVYCcLyR59vDM3UqyuU8jUJT1BVZVF9",
"tokenAccount": "92eYjjRE9TsgLFuti7KW3C9pE6B1x7hVabAyBKKCGrcW",
"source": "cache",
"fetchedAt": "2026-05-18T14:36:21.794Z"
}Retrieve exact Solana token balances at specific slot heights instead of relying on approximate timestamps or reconstructed state.
Avoid the storage and operational cost of maintaining Solana history infrastructure.
Use API keys or x402-compatible agent payments to integrate balance queries into applications and autonomous workflows.
Optimized historical balance queries with low-latency caching.
Production base URLhttps://solanaindex.top
Solana Index is a REST API focused on one core job: returning precise token balances at exact Solana slot heights. Instead of estimating historical state from wall-clock timestamps, you query by slot so accounting, auditing, and analytics pipelines can reproduce the same result consistently.
The token balance endpoint accepts wallet address, SPL token mint, and slot in the path. This route is built for deterministic historical reads where you need to prove what the token balance was at a specific chain height. The response includes both decimal balance and raw integer balance, plus token account and source metadata.
In addition to balance lookups, the API includes current slot retrieval and exact slot-to-UTC timestamp mapping. These endpoints make it easier to build internal tools that anchor reporting windows to chain height instead of loosely aligned timestamps. Slot timestamp responses are immutable and cached for efficient reuse.
Historical REST API workloads often repeat the same address, token, and slot requests. Solana Index is optimized for this access pattern with cache-backed responses that reduce latency and lower operational cost for repeated calls, while still preserving correctness for immutable historical data.
This REST API is intended for engineering teams that need stable interfaces and predictable behavior in production. Typical integrations include treasury reporting, portfolio reconciliation, tax operations, and automated checks in backend jobs. The API reference documents request and response formats for cURL, Node.js, PHP, and Go clients.
Access is controlled through Bearer API keys created in the dashboard. Keys can be issued, copied once on creation, and revoked as needed. This keeps authorization simple for server-to-server REST API usage while supporting common deployment patterns such as CI jobs, scheduled workers, and internal service integrations.
The dashboard surfaces usage totals and remaining requests so teams can track consumption. Trial users begin with a small request pool, and Pro capacity expands monthly request volume for heavier workloads. This makes the REST API practical for both testing and sustained production traffic.
Solana Index is built to reduce the need for teams to operate their own archival infrastructure for this specific use case. With a stable base URL, documented routes, and reproducible slot-based behavior, teams can move faster from proof of concept to reliable production automation.
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