GUIDE

What is Fomo Api? The Solana wallet analytics API, explained

Fomo Api is an independent REST API for Solana trader analytics: wallet-level realized PnL, ranked leaderboards, and trade history, with a coverage figure on every number. Here's what it is and how to use it.

Published September 22, 2026 · 6 min read

If you searched for "Fomo Api", you were probably looking for one of three things: a way to pull Solana wallet PnL into your own app, a ranked list of the best-performing Solana wallets, or a cheaper alternative to the trader-analytics APIs you already tried. This page covers all three.

The short answer

Fomo Api is a read-only REST API at https://api.fomo-api.com. It has three data endpoints and one pricing endpoint:

  • GET /v1/leaderboard — Solana wallets ranked by realized PnL over 24h, 7d, or 30d. Public; a key raises the row cap.
  • GET /v1/wallet/:address — one wallet's performance: realized PnL, return, volume, trade count, and coverage.
  • GET /v1/wallet/:address/trades — every individual swap behind those numbers, newest first, with venue and source.
  • GET /v1/plans — current plans, quotas, and rate limits, so you never hardcode them.

Authentication is a single Authorization: Bearer <API_KEY> header. Responses are JSON. Errors follow one shape. That's the whole surface — deliberately.

What makes it different

Every trader-analytics product will give you a PnL number. The question is whether you can ship a product on top of it. Fomo Api is built around one rule: we only surface numbers we have confidence in, and we tell you how confident.

  • Coverage on every row. coveragePct says how much of a wallet's activity the PnL is based on. A wallet at 100% coverage and one at 40% are not the same signal, and we don't pretend they are.
  • Null means unknown, not zero. A metric we can't compute with enough confidence comes back as null, so your UI never renders a fabricated $0.
  • Realized PnL from FIFO cost basis. Not "current holdings minus something". Read how the PnL is calculated.
  • Source vs venue. Where a trade originated (a bot, a wallet UI) is reported separately from where it executed (Jupiter, Pump AMM, OKX…), so you don't reverse-engineer swap classification yourself.
  • Independent data path. We read the chain directly and compute our own analytics. No competitor's product sits between the blockchain and your response.

Who uses it

  • Copy-trading and wallet-tracking bots that need a ranked, refreshed set of wallets worth following.
  • Portfolio and analytics dashboards that show a wallet's realized performance without running their own indexer.
  • Research teams comparing trader cohorts across time windows.
  • Anyone who was hardcoding scraped leaderboard data and wants an endpoint instead.

Pricing in one paragraph

Free is 2,500 calls a month. Starter is $39 for 75,000 calls. Pro is $89 for 300,000. Growth is $349 for 1.5 million. One HTTP request is one call regardless of how many rows it returns, quotas reset on the calendar month in UTC, and you can pay in USD or INR. There's also a 30-day Pro pass if you'd rather not set up a recurring mandate. The pricing page and GET /v1/plans are always current.

Get started in two minutes

  1. Sign in to the console with your email — a one-time code, no password.
  2. Create an API key. Copy it once; it's shown once.
  3. Call the leaderboard:
    curl "https://api.fomo-api.com/v1/leaderboard?window=30d&limit=20" \
      -H "Authorization: Bearer <API_KEY>"

Then read the API docs, or jump straight to the Solana wallet PnL quickstart for Node and Python examples.

Frequently asked questions

What is Fomo Api?
Fomo Api (fomo-api.com) is an independent developer API for Solana trader analytics. It ranks wallets by realized PnL, returns per-wallet performance and trade history, and attaches a coverage percentage to every figure so you know how complete the underlying data is.
Is Fomo Api affiliated with FOMO, FomoScan, or FomoAPI.io?
No. Fomo Api is an independent product. We acquire raw on-chain data ourselves and compute our own analytics; no competitor's analytics product is in the data path.
Is there a free tier?
Yes. The Free plan includes 2,500 API calls per month at 10 requests per minute, with access to the leaderboard and wallet endpoints. No credit card is required.
Which chains does Fomo Api cover?
Solana is the primary chain today: the leaderboard and wallet endpoints are Solana-first. EVM coverage is in progress.
How do I get an API key?
Sign in to the developer console with your email, open API keys, and create a key. Send it as a Bearer token in the Authorization header.