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www.df-data-agent.app

https://www.df-data-agent.app/api/v1/x402/search
● healthy x402
Category
x402
Chains
base
Price
$0.0050 USDC / call

Quality grade

How grading works
B+ 68.5 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 402)
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 9.5 / 35
8 distinct payers, 46 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2
Performance 10.0 / 10
Last probe answered in 166 ms (full marks at 200 ms or less)
Readiness 14.0 / 15
Agent readiness 93/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 17 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

A · 93/100

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 B+, 68.5/100), 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 25/25 Paid endpoint answers with an HTTP 402 challenge (166 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 3/3 probes succeeded; final after 5 probes in 30 days.
Resource declaration 10/10 Declares 17 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 (166 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. 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 94% of peers
This listing 93 · peer median 78
Latency
Faster than 62% of peers
This listing 166 ms · peer median 205 ms

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

  • 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

17 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://www.df-data-agent.app/api/v1/x402/search

Agents: describe the task in plain words ('transcribe audio', 'token price on Base', 'scrape a web page', 'weather forecast') and get the x402 APIs that can do it, ranked by evidence they actually work: distinct paying wallets in the last 30 days, recency and relevance — not raw call counts, which o

GET https://www.df-data-agent.app/api/v1/x402/check

Agents: call this before paying an x402 endpoint you haven't used. Pass its URL and get a verdict (ok / caution / avoid / unknown) with reasons: whether real wallets pay it, whether its popularity looks automated rather than organic, whether its price is fair versus comparable APIs that sell, and de

GET https://www.df-data-agent.app/api/v1/x402/price-advisor

For builders pricing an x402 API: describe what it does and get the prices of comparable endpoints across the whole Bazaar, weighted toward the ones that actually sell (3+ paying wallets, active in 14 days). Returns a suggested price and range, price bands with how many APIs in each one sell, the to

GET https://www.df-data-agent.app/api/v1/briefing/daily

Everything an agent needs for a market briefing in ONE call: 12 headline US macro indicators (CPI, core PCE, jobs, claims, Fed funds, 2y/10y yields, curve, mortgages, dollar), economic releases in the next 7 days, the 5 biggest 24h prediction-market moves and 5 most-traded markets (Polymarket + Kals

GET https://www.df-data-agent.app/api/v1/insider/latest

Most recent SEC Form 4 insider transactions across all US stocks, parsed to clean JSON within minutes of filing. Filter by type (P=open-market buy, S=sale) and minimum dollar value. Use this for a market-wide feed of new insider activity; for one company use insider-ticker, for multi-insider buying

GET https://www.df-data-agent.app/api/v1/insider/ticker

All insider buys and sells for ONE ticker over a window, with a summary: buy vs sell dollar value, distinct buyers/sellers and a net_buying / net_selling signal. Use this when you already know the stock; to discover stocks use insider-clusters or insider-latest.

GET https://www.df-data-agent.app/api/v1/insider/clusters

Stocks where several different insiders bought shares on the open market in the same window — one of the strongest public insider signals. Ranked by number of insiders and dollar value. Use this to find buy ideas; it returns a short ranked list, not raw filings.

GET https://www.df-data-agent.app/api/v1/predictions/top

Highest-volume live prediction markets across Polymarket and Kalshi with implied probabilities, 24h change, volume and close time. Refreshed every 15 minutes. Use this for what the crowd is betting on right now; for a specific event use predictions-search, for sudden shifts use predictions-movers.

GET https://www.df-data-agent.app/api/v1/predictions/search

Find the market-implied probability of any event (elections, Fed decisions, sports, crypto, geopolitics) across Polymarket and Kalshi by keyword. Use this when you have a specific question like 'will the Fed cut in December'.

GET https://www.df-data-agent.app/api/v1/predictions/movers

Markets whose implied probability moved the most in the last 24h — what the crowd suddenly changed its mind about. Filtered by minimum volume. Use this to spot breaking news and shifting expectations.

GET https://www.df-data-agent.app/api/v1/macro/latest

Latest value, change and year-over-year % for 24 key US indicators: CPI, core CPI, PCE, payrolls, unemployment, jobless claims, Fed funds, 2y/10y/30y yields, curve, mortgages, GDP, M2, Fed balance sheet, dollar index. Use this for a one-call snapshot of the US economy; for one indicator's history us

GET https://www.df-data-agent.app/api/v1/macro/series

History (up to ~260 observations) plus summary stats for ONE US macro series by FRED id (e.g. CPIAUCSL, UNRATE, DGS10). Use this when you need the trend or a chart of a single indicator; for today's values of all 24 use macro-latest.

GET https://www.df-data-agent.app/api/v1/macro/calendar

Upcoming US economic data releases (CPI, jobs report, GDP, etc.) for the next N days. Use this to know when market-moving data comes out.

GET https://www.df-data-agent.app/api/v1/x402/overview

Market-level summary of the x402 agent economy from the full Bazaar catalogue: total services and endpoints, 30-day paid calls, estimated USDC volume, demand by category, network mix and the top 15 services. Testnet and self-test listings are excluded. Use this for the big picture in one call; for a

GET https://www.df-data-agent.app/api/v1/x402/services

Ranked list of individual x402 services (by 30-day calls, unique payers or estimated revenue) with endpoint count, median price and networks; filter by category. Services whose volume comes from 2 or fewer wallets (likely self-testing) and testnet listings are excluded by default. Use this for compe

GET https://www.df-data-agent.app/api/v1/x402/trending

Which x402 services gained or lost the most paid calls versus N days ago, plus new entrants — built from our daily snapshots of the whole catalogue.

GET https://www.df-data-agent.app/api/v1/x402/pricing

What paid agent APIs cost, per category: 25th/50th/75th percentile price, free share, and the median price of endpoints that actually get paid calls. For sellers setting prices and buyers checking value.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://www.df-data-agent.app/api/v1/x402/search  # expect HTTP 402 Payment Required (about 0.005 USDC/call)
/.well-known/x402.json
https://www.df-data-agent.app/.well-known/x402

Listed in

Directories this entry was found in.

x402 since 2026-11-10