# fastapi.online — Solana Token Supply Lookup

> fastapi.online — Solana Token Supply Lookup is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns the current total supply of a Solana token given its mint address

## Facts

- Endpoint: POST https://api.fastapi.online/sol-token-supply
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fastapi-online-solana-token-supply-lookup-e83e87c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pUtwQaGGAaG-ZxsR7_bpO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fastapi-online-solana-token-supply-lookup-e83e87c3 -d '<json body>'
```

Example prompt: What is the total token supply for the Solana mint address EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call, no-signup lookup of Solana token supply data using a mint address, especially in automated or agent-driven pipelines where ephemeral crypto payments (x402/USDC) are preferred over managed API key subscriptions.

## Known failure modes

- Invalid or malformed mint address returns an error
- Non-existent mint address returns not found or zero supply
- Network or RPC node unavailability causes timeout
- Missing mint field in request body causes validation error

## How this service works

Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&amp;A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding &amp; crypto utilities, date/time calculators, geo/coordinate math, math &amp; finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.

## Output

Returns the total supply figure for the specified Solana SPL token mint, typically as a numeric value representing the on-chain token supply amount.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mint": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fastapi-online-solana-token-supply-lookup-e83e87c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fastapi.online](https://www.zero.xyz/host/api.fastapi.online/llms.txt)