ob-mid-from-levels

Compute mid price from bid/ask top-of-book levels.

Compute mid price from bid/ask top-of-book levels. Call when you have L1 bid and ask and need a mid for marks. Returns mid, spread_abs, and spread_bps as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.001 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x9f8bd987…175e73a2

URL

https://api.delx.ai/api/v1/x402/ob-mid-from-levels

MCP server on this host: io.github.davidmosiah/delx-mcp-a2a

Seen

first 34 days ago · last 14 hr ago

58 free handshakes

Payment

Pays through

x402 · MPP tempo

Offered on?

Base USDC, Solana, Tempo USDC.e

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.723 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held back by sample size, not by the seller · gap to 1.000 is 0.277: 0.187 uncertain ? + 0.090 short ? · 0.077 to B

How the composite of 0.723 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.55	0.000		0.000	−0.090	−0.110
liveness it answered at all	0.60	1.00	0.872		0.523	0	−0.077
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.723	gap to 1.000 = 0.277 · 0.090 short · 0.187 uncertain	0.723	−0.090	−0.187

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.872   liveness       
+ 0.200 × 1.000   price stability
= 0.723           → UNRATED: 48 of 30 paid calls      weights 2026.09.6 · 48 samples · seed cap_01M1A5A7J0WJWBQQG4WDR673CQ|2026-08-29T01:48:33.005Z|2026.09.6

Verify it yourselfnpx teppi-check https://api.delx.ai/api/v1/x402/ob-mid-from-levelscurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A7J0WJWBQQG4WDR673CQ