www.df-data-agent.app
https://www.df-data-agent.app/api/v1/x402/searchPaid verification
How it worksNo 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- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
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. |
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.
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.
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
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
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
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
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
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.
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.
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.
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'.
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.
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
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.
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.
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
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
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.
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 -sS -i -X GET https://www.df-data-agent.app/api/v1/x402/search # expect HTTP 402 Payment Required (about 0.005 USDC/call)
Listed in
Directories this entry was found in.