api.n0brains.com

https://api.n0brains.com/

● healthy general

Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.

Paid verification

How it works

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

B+ 82.4 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 20.0 / 20

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

Demand 22.4 / 40

46 distinct payers, 179 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 5 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 B+, 82.4/100), 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 (302 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 18 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 (302 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. Display only: search order uses the quality grade.

Compared with peers

Against 10,060 reachable x402 APIs in our daily snapshot (2026-11-12 01:39 UTC). Display only; it does not change search order.

Readiness: Higher than 75% of peers; This listing 87 · peer median 78
Latency: Faster than 35% of peers; This listing 302 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 (302 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

18 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.n0brains.com/x402/signals $0.0050 / call

Real-time crypto trading signals for BTC, ETH, SOL and 400+ coins — classified, scored, with direction/confidence/conviction; forward-return record at /proof

GET https://api.n0brains.com/x402/rotation $0.0020 / call

Crypto market rotation & altseason regime: rotation score, breadth, which coins rotating in/out

GET https://api.n0brains.com/x402/correlation/{coin} $0.0050 / call

Real-time crypto correlation & beta for a coin vs BTC/ETH + most-correlated peers (pairs, hedging, risk)

GET https://api.n0brains.com/x402/liquidation-map/{coin} $0.0050 / call

Real-time crypto liquidation map/heatmap for a coin: long/short liq zones, prices, notional, open interest

GET https://api.n0brains.com/x402/levels/{coin} $0.0020 / call

Real-time crypto support & resistance levels for a coin (entries, exits, stops, targets)

GET https://api.n0brains.com/x402/macro $0.0020 / call

Current cross-asset macro conditions, calendar risk, and per-asset bias only when the live composite supports one

GET https://api.n0brains.com/x402/regime $0.0050 / call

Crypto market regime (risk-on/off): a risk_score blending macro, breadth, funding and volatility with the component breakdown

GET https://api.n0brains.com/x402/liquidity $0.0050 / call

Crypto liquidity map: Fed net liquidity, multi-chain stablecoin dry powder + delta, perp OI, liq pressure, net taker flow

GET https://api.n0brains.com/x402/flows $0.0050 / call

Crypto capital-flow map: rotation, crypto-vs-tradfi OI by asset class, institutional posture (ETF/COT/13F)

GET https://api.n0brains.com/x402/market-map $0.0100 / call

One-call cross-asset market map: regime + liquidity + flows composited into a single dashboard payload

GET https://api.n0brains.com/x402/discovery $0.0200 / call

Emergent-edge discovery: corroboration patterns showing real forward-return edge in the live shadow ledger, ranked by excess/hit/t-stat

GET https://api.n0brains.com/x402/plan/{coin} $0.0100 / call

Assembled crypto trade plan for a coin: direction, entry, strongest target, stop, R:R, options context + risk warnings in one call

GET https://api.n0brains.com/x402/rank $0.0150 / call

Cross-asset crypto trade ranking: assembled plans for BTC/ETH/SOL scored + sorted so an agent sees the best trade now

GET https://api.n0brains.com/x402/calendar $0.0020 / call

Economic calendar: upcoming high-impact US macro releases (CPI, NFP, FOMC) + tracked earnings with consensus/previous and, once printed, actual + surprise — the 'when' feed for scheduled event risk

GET https://api.n0brains.com/x402/analogs $0.0100 / call

Historical market-state analogs: k-nearest past states (SPX/NDX momentum, VIX term structure, DXY, curve) + what SPX/NDX/BTC did next (1d/5d distributions)

GET https://api.n0brains.com/x402/event-outlook $0.0050 / call

Upcoming macro/earnings calendar joined with each event's measured historical reaction distribution (by surprise sign) from the event-study library

GET https://api.n0brains.com/x402/positioning/{coin} $0.0100 / call

Positioning thesis for a coin: funding crowding (z30d), taker CVD, OI-vs-price divergence, options + max-pain trend, liq magnets, whale stance — one net bias with per-component reasoning

GET https://api.n0brains.com/x402/check $0.0500 / call

Pre-trade conditions check: crowding, event risk, liquidation geometry, stop noise and falsifiers; every verdict is logged and resolved, while cross-grade claims remain gated

How to call

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

curl -sS -i -X GET https://api.n0brains.com/  # expect HTTP 402 Payment Required (about $0.002/call)

/.well-known/x402.json

https://api.n0brains.com/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-06-15 paygent-discover since 2026-07-15 mcp since 2026-10-08 x402 since 2026-10-09