district?address=1600+Pennsylvania+Ave+NW%2C+Washington%2C+DC+20500

Resolve a US street address to its congressional district (119th Congress), state, and county, via the US Census Bureau geocoder.

Resolve a US street address to its congressional district (119th Congress), state, and county, via the US Census Bureau geocoder. Returns the matched/normalized address, latitude/longitude, state (name + 2-letter abbreviation), county, and the district number within the state (null for at-large or non-voting delegate districts). The point-in-polygon district lookup is something an agent can't do from a sandbox. Pair it with the gov/congress.* endpoints to find the representatives once you have the state + district. Public domain, keyless.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.0045 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2b6d4988…51fc32c5

URL

https://2s.io/api/gov/district?address=1600+Pennsylvania+Ave+NW%2C+Washington%2C+DC+20500

Seen

first 14 days ago · last 2 days ago

25 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.665 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 0.335: 0.176 uncertain ? + 0.159 short ? · 0.135 to B

How the composite of 0.665 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.707		0.424	0	−0.176
latency p95 it answered as fast as its class	0.20	0.20	0.204		0.041	−0.159	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.665	gap to 1.000 = 0.335 · 0.159 short · 0.176 uncertain	0.665	−0.159	−0.176

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

The multiplication, written out

  0.600 × 0.707   liveness       
+ 0.200 × 0.204   latency p95    
+ 0.200 × 1.000   price stability
= 0.665           → UNRATED: 21 of 30 paid calls      weights 2026.09.6 · 21 samples · seed cap_01M2Z1475J3J00ZPQVKFMCBF0P|2026-09-01T17:45:32.248Z|2026.09.6

Verify it yourselfnpx teppi-check https://2s.io/api/gov/district?address=1600+Pennsylvania+Ave+NW%2C+Washington%2C+DC+20500curl -s https://api.teppi.xyz/v1/trust/cap_01M2Z1475J3J00ZPQVKFMCBF0P