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EXTERNAL

Units and Conversions

Convert data sizes between bytes, KB/MB/GB/TB (decimal) and KiB/MiB/GiB/TiB (binary), and the time to transfer at a speed.

APIx402

Listing info 80/100

0.02 USDC / call (eip155:8453); 20000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 20000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 20000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)Indexed
EXTERNAL

x402-data-api.sigrunner.workers.dev · /crypto/funding

Cross-venue Hyperliquid+OKX+dYdX perp funding rates — top coins by 24h notional volume, per-venue funding + arb spread (bps) + cheapest-long/richest-short venue, premi…

APIx402

Listing info 80/100

0.004 USDC / call (eip155:8453)Indexed
EXTERNAL

x402-data-api.sigrunner.workers.dev · /defi/safe-yields

Vetted stablecoin yields: top stablecoin pools (DefiLlama, TVL>$5M, APY 1-25%) joined with each protocol's age and hack history, safest-yield first; optional ?chain= &…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed
EXTERNAL

ISHOB

Normalized scholarly metadata + abstract + full rights/attribution for one open-licensed document

APIx402

Listing info 60/100

1000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e (eip155:84532)Indexed
EXTERNAL

ISHOB

Parsed reference list (with DOIs/PMIDs where available) of one document

APIx402

Listing info 60/100

2000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e (eip155:84532)Indexed
EXTERNAL

Otto AI

TradFi macro intelligence: indices, VIX, DXY, treasury yields, commodities, and individual stock quotes with moving average context.

APIx402

Listing info 80/100

0.003 USDC / call (eip155:8453); 3000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

tokenguard

Certificate-transparency history for a domain (crt.sh) — every TLS certificate issued, which doubles as subdomain discovery

APIx402

Listing info 80/100

0.02 USDC / call (eip155:8453)Indexed
EXTERNAL

Change audit: ODGS Data Rules

Change audit: ODGS Data Rules: Audit JSON changes and validate before/after for ODGS Data Rules. Uses a pinned SchemaStore definition on this PC. Reports JSON pointers…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed
EXTERNAL

Datagov Au

data.gov.au MCP — Australia open-data CKAN catalogue.

MCP

Listing info 75/100

Price not supplied by publisherIndexed
EXTERNAL

ground

Reference data API for classification systems, real-time world data, and unit conversions

MCP

Listing info 65/100

Price not supplied by publisherIndexed
EXTERNAL

Gurufocus

GuruFocus MCP — wraps the GuruFocus Data API (gurufocus.com/data-api)

MCP

Listing info 75/100

Price not supplied by publisherIndexed
EXTERNAL

mcp

Twelve Data MCP: real-time & historical market data (stocks, crypto, forex, etc).

MCP

Listing info 65/100

Price not supplied by publisherIndexed

Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works