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fastapi.online — DeFi Chain TVL Lookup
x402
fastapi.online — DeFi Chain TVL Lookup is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status down (last checked 2026-10-14).
Fetches Total Value Locked (TVL) data across DeFi blockchain chains via a self-hosted proxy endpoint.
Price / call$0.001
Success—
StatusDown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & 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 a list of blockchain chains with their associated Total Value Locked (TVL) figures, likely including chain name, TVL in USD, and possibly protocol counts or percentage breakdowns — sourced from an aggregated DeFi data feed.
Example use cases
DeFi Market Overview Dashboard
“Get me the latest TVL figures for all blockchain chains so I can build a snapshot of where DeFi liquidity is concentrated today.”
Chain Comparison for Investment Research
“Which blockchain networks have the highest total value locked in DeFi right now? Pull the chain TVL data and rank them for me.”
DeFi Ecosystem Health Check
“Fetch the current TVL across all DeFi chains — I want to see if the overall market has grown or shrunk compared to what I expect.”
Technical details
Endpoint
POSThttps://api.fastapi.online/chains-tvl?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a pay-per-call, no-signup DeFi chain TVL lookup paid via USDC crypto micropayment (x402 protocol). Prefer this over free aggregator APIs when you want on-demand, permissionless access without API key registration, or when integrating into an autonomous agent workflow that pays per query with crypto.
Side effects
- Empty or malformed POST body may cause 400 Bad Request
- Upstream DeFi data source unavailable leading to 502 or timeout
- Payment not processed correctly resulting in 402 Payment Required
- Rate limiting if called too frequently without valid payment
- Missing required 'input' wrapper object causes schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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