api.lastlookdata.com

https://api.lastlookdata.com/

● healthy general

LastLook Data — Current 30-year US Treasury yield (DGS30). Alias for /api/current?id=DGS30.

Paid verification

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

A 83.2 / 100

Availability 20.0 / 20

Endpoint responded (HTTP 200)

Payability 15.0 / 15

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 25.2 / 35

124 distinct payers, 1079 USDC transfers in the last 30 days

Performance 10.0 / 10

Last probe answered in 182 ms (full marks at 200 ms or less)

Readiness 13.0 / 15

Agent readiness 87/100

Owner verified 0.0 / 5

Nobody has claimed this listing yet

Endpoint last checked 18 h ago. On-chain activity last read 2 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 87/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here A, 83.2/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements	10/10	Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge	20/25	Endpoint reachable; its 402 challenge was seen earlier (182 ms).
x402 version	n/a	x402 version not observed yet.
Signed descriptor	n/a	No x402 standard defines a signed descriptor.
Uptime (30 days)	15/15	32/32 probes succeeded over 30 days (100%).
Resource declaration	10/10	Declares 28 paid resource(s).
Verified identity	5/10	Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags	5/5	seen in a source within 7 days; declares x402.
Security declaration	n/a	Payment is the access control for an x402 resource.

Applicable criteria total 75 points, scaled to 100.

Responsiveness: Responsive (182 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, bazaar_feed, catalog_listing. Qualifies the payment claim; adds no points.

Measured 2026-11-11.

Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness: Higher than 75% of peers; This listing 87 · peer median 78
Latency: Faster than 56% of peers; This listing 182 ms · peer median 205 ms

Where it loses the most points, and how to win them back

Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
Now: Endpoint reachable; its 402 challenge was seen earlier (182 ms).
Verified identity −5 — Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

28 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

GET https://api.lastlookdata.com/api/calc/refi

Refinance calculator priced against today's market. Give the current rate, balance and remaining term; get new monthly payment, monthly savings, break-even month, net benefit over the years you expect to stay, and a plain verdict. New rate defaults to the live Optimal Blue locked-rate index for the

GET https://api.lastlookdata.com/api/grade/offer

Grades a written mortgage offer (rate, points, lender fees) against the live Optimal Blue locked-rate index for the same product, term, credit score and LTV. Returns a letter grade, spread vs market in basis points, monthly and total-over-horizon cost vs market, and a plain-language verdict.

GET https://api.lastlookdata.com/api/current

Most recent value for any supported FRED series. Use ?id=IORB, ?id=EFFR, ?id=MORTGAGE30US, ?id=FEDFUNDS, ?id=DGS10, etc.

GET https://api.lastlookdata.com/api/date

Value for any supported FRED series on a specific date. Use ?id=SERIES_ID&d=YYYY-MM-DD. Business days only.

GET https://api.lastlookdata.com/api/series/30

Last 30 days of any FRED series. Use for mortgage rates, Fed funds, IORB, EFFR, Treasury yields, CPI, energy prices, and more.

GET https://api.lastlookdata.com/api/series/90

Last 90 days of any supported FRED series.

GET https://api.lastlookdata.com/api/series/365

Last 365 days of any supported FRED series.

GET https://api.lastlookdata.com/api/treasury/current

Current 30-year US Treasury yield (DGS30). Alias for /api/current?id=DGS30.

GET https://api.lastlookdata.com/api/treasury/date

30-year Treasury yield for a specific date. Alias for /api/date?id=DGS30&d=YYYY-MM-DD.

GET https://api.lastlookdata.com/api/fx/current

Current exchange rate for a G10 currency pair. Source: European Central Bank.

GET https://api.lastlookdata.com/api/fx/date

Exchange rate for a G10 currency pair on a specific date. Use ?pair=EURUSD&d=YYYY-MM-DD.

GET https://api.lastlookdata.com/api/fx/series

Historical daily exchange rates for a G10 currency pair.

GET https://api.lastlookdata.com/api/derived/yield-curve

Yield curve spreads (2s10s and 3m10y) with inversion signal. Computed from FRED Treasury data.

GET https://api.lastlookdata.com/api/derived/recession

Real-time Sahm Rule recession indicator. Value >= 0.5 signals recession underway. Source: FRED SAHMREALTIME.

GET https://api.lastlookdata.com/api/derived/policy-spread

EFFR vs IORB spread. Shows where the effective Fed funds rate trades relative to interest on reserves.

GET https://api.lastlookdata.com/api/calendar

Upcoming FRED economic data release dates. CPI, jobs, GDP, Treasury, and more. Use ?days=30|60|90.

GET https://api.lastlookdata.com/api/bundle/refi-signal

Refinance signal bundle: current 30yr and 15yr mortgage rates, 52-week range, MBS spread, rate trend, and refi break-even threshold. Tells an AI agent whether a borrower should consider refinancing.

GET https://api.lastlookdata.com/api/bundle/purchase-market

Home purchase market bundle: current mortgage rate, median sale price, monthly payment estimate, income required to qualify, and affordability level. Directly answers whether a buyer can afford a median home.

GET https://api.lastlookdata.com/api/bundle/rate-environment

Rate environment snapshot: FEDFUNDS, SOFR, DGS2, DGS5, DGS10, DGS30 plus yield curve spreads and policy spread. One payment, all rate data.

GET https://api.lastlookdata.com/api/bundle/mortgage-pulse

Mortgage market pulse: 30yr and 15yr mortgage rates, 10Y Treasury, Fed funds, median home price, housing starts. Includes MBS spread and rate trend.

GET https://api.lastlookdata.com/api/bundle/macro

Macro health snapshot: GDP, unemployment, CPI, core CPI, Fed funds, yield curve spreads, and Sahm Rule recession signal. Includes cycle phase.

GET https://api.lastlookdata.com/api/bundle/fx-dashboard

G10 FX dashboard: all 9 spot rates (EURUSD, GBPUSD, USDJPY, USDCHF, USDCAD, AUDUSD, NZDUSD, USDSEK, USDNOK) plus USD strength index vs basket (30d).

GET https://api.lastlookdata.com/api/bundle/energy

Energy and commodities bundle: WTI crude, Brent crude, US regular gasoline, Henry Hub natural gas. Includes WTI-Brent spread and market signal.

GET https://api.lastlookdata.com/api/bundle/context-brief

Economic context brief: 15+ indicators across rates, inflation, employment, FX, and energy in a pre-formatted natural-language paragraph for LLM context injection.

GET https://api.lastlookdata.com/api/crypto/price

Current price, 24h change, market cap, and volume for any supported cryptocurrency. Use ?coin=BTC|ETH|SOL|BNB|XRP|ADA|AVAX|DOGE|LINK|DOT|etc. Source: CoinGecko.

GET https://api.lastlookdata.com/api/crypto/history

Historical daily closing prices for any supported cryptocurrency. Use ?coin=BTC&days=30|90|365. Source: CoinGecko.

GET https://api.lastlookdata.com/api/bundle/crypto

Top 20 cryptocurrencies by market cap: price, 24h change, 7d change, market cap, and volume in one call. Source: CoinGecko.

GET https://api.lastlookdata.com/api/edgar/company

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://api.lastlookdata.com/  # expect HTTP 402 Payment Required (about $0.01/call)

/.well-known/x402.json

https://api.lastlookdata.com/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-06-05 paygent-discover since 2026-07-04 x402 since 2026-10-10