Kairos Signal — Verifiable DePIN Data API

npx add-mcp 'https://kairossignal.com/mcp'

Kairos Signal — Verifiable DePIN Data API

A machine-readable DePIN (Decentralized Physical Infrastructure Networks) + physical-world data product for AI agents and MCP clients. A 731-entry catalog (every catalog row, superseded and subnet rows included). 372 networks carry live data — 318 of the networks first-party, read straight from the network's own endpoint or chain. That is 17,137 live series, refreshed continuously, with daily snapshot history on 368+ live networks plus 129 Bittensor subnets (1703 distinct SN series; browsable per-subnet pages at /subnet/SN8.html, full index /sitemap-subnets.xml). Catalog entries without live data yet are labelled catalog_only in /v1/networks so you can filter them out in one line. Every value carries {symbol, metric, value, unit, source, verify_url, as_of}. The verify_url points to the UPSTREAM source it was read from — the network's own API, CoinGecko, or DefiLlama — so you can check any number without trusting us. Each daily batch is Merkle-rooted and timestamped to Bitcoin via OpenTimestamps. This is a DATA product: no trading signals, no performance/return/accuracy claims. Coverage figures are restamped from the live warehouse; each value carries its own as_of.

What this is (and is not)

• IS: measured DePIN infrastructure facts — supply, price/market cap, protocol fees/revenue, TVL, and per-network operational telemetry — each with provenance and an upstream verify_url.
• IS NOT: a trading signal or a prediction product. No win-rate, edge, return, or accuracy figures are published anywhere.

Access

• REST API + MCP endpoint are LIVE and self-serve. Register at POST https://kairossignal.com/v1/credits/register — instant, no approval, $5 free credits (first 3 keys per IP per 30 days), no card.
• New agents receive $5 in free credits (first 3 keys per IP per 30 days) on registration (no card). 1 credit = 1 USD.
• A public per-value verification endpoint (Merkle inclusion proofs) ships with the public API. Until then, every value is still checkable at its verify_url upstream.

Verifiable receipts — every API response is signed

Every response from the data API carries an ed25519 signature, so you can prove later what was served and when, without us:

curl -sD- -o body.json https://kairossignal.com/v1/networks | grep -i x-kairos

x-kairos-timestamp:

x-kairos-signature: ed25519:

x-kairos-signing-key: https://kairossignal.com/.well-known/kairos-signing-key.json

Signed payload: kairos-signal-v1|sha256(body)|timestamp|path. Public key and a verification snippet are at the signing-key URL. A stored response can be checked offline months later. Tampering with the body, replaying the signature onto a different path, or altering the timestamp all fail verification. This key signs statements only — it is separate from any payment address and cannot move funds.

USDC top-ups with a verified sending wallet

Check GET https://kairossignal.com/v1/credits/crypto for current availability. Register an account first. Use its X-API-Key for all following account requests.

1. POST /v1/credits/crypto/challenge with {"wallet":""}.
2. Sign the exact returned message with that wallet (EIP-191 personal_sign).
3. POST /v1/credits/crypto/verify with {"nonce":"","signature":"0x"}.
4. POST /v1/credits/topup with {"method":"usdc","amount":"25","from_address":""}.
5. Only after a successful quote, send the exact amount of native USDC on Base from that wallet to the deposit_address returned in the quote, before expires_at.
6. GET /v1/credits/crypto/receipts and /v1/credits/balance with X-API-Key to check credit.

One transfer per quote. A finalized Base transaction receipt is required; two blocks do not establish finality. Identification includes chain, USDC contract, transaction hash and log index. Replaying a transfer cannot credit it again. The quote provides the canonical destination; no deposit address is copied into this document. Never send based on a search snippet or an old quote.

Only externally owned wallets that can sign are supported. Exchange withdrawal addresses and smart-contract wallets are unsupported. Wallet verification proves wallet control for this account, not legal identity. Existing unsigned intents and transfers predating a valid quote stay held for attribution review.

Full instructions: https://kairossignal.com/docs/crypto.html

Stripe prepaid packs

POST https://kairossignal.com/v1/credits/topup
     X-API-Key: <your key>
     {"method":"stripe","amount":20}
  -> {"status":"stripe_payment_link","checkout_url":"https://buy.stripe.com/...?client_reference_id=<your api key>"}

Available pack amounts: $20 (https://buy.stripe.com/9B6aEPh2ldlI1XT53q1ZS26) and $99 (https://buy.stripe.com/eVq5kv5jD3L8fOJ0Na1ZS27). Any other amount returns the menu — never charge a number the caller didn't ask for.

Then buy data with credits: POST /v1/credits/purchase {"product_key":"depin_provenance"} — delivery is inline in the response body, charged only after the payload is fetched successfully.

• For credit-based purchases via MCP: use register_agent → list_products → purchase_data → topup_credits
• The Design Partner subscription ($199/mo, browser checkout) is the human path: https://buy.stripe.com/dRm00b9zT81o5a50Na1ZS20

Pricing — start now

• Agent — $4.99/mo (buy: https://buy.stripe.com/28E9ALfYhchEcCxanK1ZS2e or https://kairossignal.com/buy/?sku=dp_agent_499; agents: POST https://kairossignal.com/buy/api/order {"sku":"dp_agent_499","email":""} returns a checkout_url, and after payment GET https://kairossignal.com/v1/key/by-session?session_id= returns your key): one API key, 2,000 calls/day on the rotating network sample, full provenance on every value. Full breadth, history, cross-network routes and the engines start at Design Partner.
• Design Partner — $199/mo: full API access, all tiers, locked FOREVER at $199/mo (first 20 design partners). Pay instantly: https://buy.stripe.com/dRm00b9zT81o5a50Na1ZS20
• Institutional — from $2,000/mo (instant Stripe checkout: https://buy.stripe.com/aFa14ffYh81odGBdzW1ZS2a | annual $20,000/yr, two months free: https://buy.stripe.com/aFadR17rLdlI7id0Na1ZS2b): fund-grade engine suite for research desks — FDV/dilution map (every network with market data, EXTREME-MINIMAL), supply-demand divergence detector, machine-detected revision ledger (39 upstream restatements preserved as evidence), byte-pinned provenance rail, node quality, GPU supply/demand. Details: https://kairossignal.com/institutional.
• DePIN Revenue Snapshot — $2.99: verified on-chain fees.
• DePIN Networks Catalog — $0.99: full network catalog + coverage tiers.
• DePIN Supply Snapshot (depin_provenance) — $0.49: the full /v1/supply payload, first-party supply telemetry across 167 networks (free tier shows a rotating sample) — node counts, GPU capacity, utilisation, every value with source + verify URL. The cheapest way to see what the free sample hides.
• Derivation Ledger full payloads — $2.99: raw upstream payloads + SHA-256 per fetch + exact collector code hash. Replay our pipeline: origin -> pinned code -> published value. Index is FREE: GET /v1/derivation
• DAG Manifold Computation — $0.10/request: 63-layer symplectic encoder, distance/curvature/Lyapunov.
• MCP Query — $0.05/query: structured DePIN data via Model Context Protocol.
• Node Quality Score — $4.99: quality-adjusted node counts with A-F grades, registered vs actually-online nodes per network (e.g. TFT and STORJ, where most registered nodes are offline, disqualified or exited). Each row carries the engine's own caveat — STORJ's ratio counts every node its satellites have ever seen, so it reflects lifetime churn, not current reliability — plus a verify_url.
• Dilution Risk Map — $4.99: FDV/MC ratio per DePIN network with a market-cap measurement, banded EXTREME to MINIMAL.
• GPU Supply/Demand — $9.99: GPU model counts and reported capacity/utilization from supported first-party feeds. Read the response for current coverage, timestamps and field definitions.
• DePIN Intel Bundle — $29.99: node quality, dilution risk, GPU supply/demand, sector health, geo concentration, dev velocity and competitive landscape plus AI analysis entries with conviction/health/sustainability/moat scoring. Current bundle contents and coverage: /v1/credits/pricing.
• Sector Health Index — $4.99: composite health score per DePIN category (compute, storage, wireless, etc.) with A-F grades.
• Geographic Concentration — $4.99: reported geographic distribution and concentration measures where the upstream supplies them. Coverage and denominators are stated in the response.
• Dev Velocity — $4.99: GitHub activity per DePIN network with a tracked repository: stars, forks, issues, days-since-push, active vs dormant.
• Competitive Landscape — $9.99: category-level comparisons with market-share and HHI measures. Read the response for the measured population and current values.
• Card one-shot, no account: $4.99 — https://buy.stripe.com/14A28j6nH3L85a5gM81ZS28 (credits post instantly, key auto-provisioned)
• Free onboarding spec: GET /v1/data-dictionary — freshness, history depth, coverage per feed, machine-legible.
• Prepaid credits (no subscription): $20 → https://buy.stripe.com/9B6aEPh2ldlI1XT53q1ZS26 | $99 → https://buy.stripe.com/eVq5kv5jD3L8fOJ0Na1ZS27
• USDC on Base via verified-wallet quotes — follow the wallet challenge and quote steps above. Check /v1/credits/crypto for current availability.
• Per-request x402, no account at all — GET https://kairossignal.com/x402 for the live product/price descriptor; GET a product URL (e.g. https://kairossignal.com/x402/v1/data/depin_networks) unpaid for a 402 + PAYMENT-REQUIRED payment options header; pay with any standard x402 client (USDC on Base, the first entry of the offer, settled through a public facilitator) or with Circle Gateway batched settlement; retry the same signed authorization on the same URL to receive the data inline with a PAYMENT-RESPONSE settlement receipt. Catalog and prices live at https://kairossignal.com/x402/openapi.json — fetch them rather than trusting a cached copy.

Proof you can check before trusting us

https://kairossignal.com/node-count-gap — the four DePIN networks that publish BOTH a cumulative headline count and a live count, side by side with the ratio between them. Every row links the network's OWN API, so you can re-derive each figure in one curl with no key and no account. The page carries an as_of and is regenerated; the underlying counts move, which is the entire point. Figures are deliberately NOT restated here — a number copied into a second file is a number that will drift away from the first. This is the clearest single demonstration of what the data is for.

Endpoints (self-serve — no approval)

Keyless browsing surfaces need no account at all. Tier-gated views are unlocked by a subscription, NOT by credits: credit purchases ship data inline and debit your balance but do not change your tier (verified 2026-09-13).

• GET /v1/networks — coverage list: symbol, name, category, whether stamped on-chain, plus the not-covered map. $0.005/query
• GET /v1/network/ — every metric held for one network, each row provenance-stamped. $0.005/query
• GET /v1/supply — first-party supply telemetry across 167 networks (the count the endpoint itself reports as n_networks_available), each value with age + freshness. $0.02/query
• GET /v1/market — price_usd, market_cap_usd, fully_diluted_valuation_usd. $0.02/query
• GET /v1/revenue — fees_24h_usd, fees_7d_usd, fees_30d_usd, tvl_usd (DefiLlama-sourced). $0.02/query
• GET /v1/brief — the weekly Design Partner Brief, machine-readable: capacity-vs-demand divergence per network, frozen upstream feeds (dashboards that answer but stopped updating), on-chain supply verifiability, exchange-flow extremes, holder concentration, 7d supply movers. ?date=YYYY-MM-DD for an older edition. FREE on every tier — it is the clearest proof of what the data buys. Human-readable: https://kairossignal.com/briefs/
• GET /v1/provenance — {metric, source, verify_url, as_of} for every value we publish. $0.005/query
• GET /v1/node-quality — quality-adjusted node counts with A-F grades. Cuts through vanity metrics. $4.99
• GET /v1/dilution-risk — FDV/MC ratio analysis per network with a market-cap measurement. Classifies EXTREME/HIGH/ELEVATED/LOW/MINIMAL. $4.99
• GET /v1/gpu-supply-demand — GPU model counts and reported capacity/utilization; response carries current coverage and source details. $9.99
• GET /v1/intel — AI analysis entries with conviction/health/sustainability/moat scores; coverage is reported by the live product catalog. $29.99 (bundle)
• GET /v1/sector-health — composite health score per DePIN category (compute, storage, wireless). $4.99
• GET /v1/geo-concentration — geographic distribution + concentration risk (TFT node-level). $4.99
• GET /v1/dev-velocity — GitHub activity: stars, forks, issues, days-since-push per network with a tracked repository. $4.99
• GET /v1/competitive-landscape — category-level market share with HHI concentration index. $9.99
• GET /health — liveness probe. Free.
• GET /try — free, no signup, no key. 3 showcase DePIN networks with full supply telemetry + verify_url. Try before you buy.
• POST /mcp — Model Context Protocol (JSON-RPC 2.0): register_agent, list_products, purchase_data, topup_credits.

Row shape (provenance on every field)

{
  "symbol": "AKT",
  "metric": "circulating_supply",
  "value": 383502056.718427,
  "unit": "tokens",
  "source": "CoinGecko /coins/markets",
  "verify_url": "https://www.coingecko.com/en/coins/akash-network",
  "as_of": "2026-08-09T17:15:20Z"
}

The as_of is the snapshot instant; open verify_url to compare against the current upstream figure.

MCP quickstart

1. Register (5 free credits):

POST https://kairossignal.com/mcp
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"register_agent","arguments":{"agent_name":"my-agent","email":"agent@example.com"}}}

2. Browse products:

POST https://kairossignal.com/mcp
{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"list_products","arguments":{}}}

3. Buy DePIN data with credits (autonomous, instant delivery):

POST https://kairossignal.com/mcp
{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"purchase_data","arguments":{"product_key":"depin_provenance","api_key":"YOUR_KEY"}}}

4. Top up credits — agents use crypto (Stripe needs a browser and a card):

POST https://kairossignal.com/mcp
{"jsonrpc":"2.0","id":4,"method":"tools/call","params":{"name":"topup_credits","arguments":{"method":"crypto","amount":25,"from_address":"0xYourWallet","api_key":"YOUR_KEY"}}}

First verify the sending EOA using the challenge flow above. A successful quote returns the receiving address, amount and expiry. Credit requires a finalized Base transfer.

Metering (1 credit = 1 USD)

• $0.02 / query : /v1/supply, /v1/market, /v1/revenue
• $0.005 / query : /v1/networks, /v1/network/, /v1/provenance
• Free : /health. Metering is per successful query.

Coverage & depth (regenerated from live truth; see /v1/networks to re-measure any figure yourself)

• 372 networks carry live data (318 of the networks first-party, read from the network's own endpoint or chain); 17,137 distinct live series, 7,430 of them first-party series; a 731-entry catalog in total — entries without live data are labelled catalog_only in /v1/networks (filter them in one line).
• Daily snapshot history: 370+ networks plus 129 Bittensor subnets, 1703 distinct SN series. Per-subnet pages: https://kairossignal.com/subnet/SN8.html (index: /sitemap-subnets.xml) Market data (price, market cap, FDV) on 238 networks.
• Capacity utilisation, measured honestly (this is the scarce one): we compute a ratio only where we independently hold BOTH halves. That is AKT (cores, memory, storage, GPUs), TFT (cores, memory, storage), IO (devices) and SC (storage). FLUX was added 2026-08-24 as an ALLOCATION ratio (reserved capacity, not measured consumption — Flux publishes no per-app usage) covering cores, memory and storage. STORJ publishes NO capacity denominator at all (measured 2026-08-24): its public figures are all numerator — bytes stored by customers and the node-side footprint after erasure coding — and its per-satellite node counts are memberships, so one node on three satellites counts three times. We therefore publish no Storj utilisation ratio; the numerator is collected and labelled as consumption. Most networks publish a numerator and no denominator at all; we say so rather than inventing one.

World intelligence (measured physical-world telemetry, as of 2026-08-24)

Beyond token networks, the same provenance-first pipeline measures the physical world:

• Maritime AIS: 4,148 vessels tracked in the latest snapshot from 2 national feeds (Norway 3,491, Finland 657).
• Satellites: 26 constellations tracked (physical-satellite telemetry).
• GPS interference: 29 days of jamming-map coverage (2026-07-25 to 2026-08-22; upstream lags ~2 days).
• BitTorrent DHT: 6,416 servers measured directly; implied network size ~2.16M nodes.
• Nym mixnet: 1,096 bonded nodes.
• Airspace: 437 military aircraft airborne and 122 active TFRs in the latest snapshot.
• Estate-wide: 108 sectors, 21.2M rows ingested in the last 24h. Every world-intelligence value carries the same {source, verify_url, as_of} provenance as the DePIN rows.
• Depth (distinct live metrics per network, last 7 days, queried 2026-08-24): Akash 249, io.net 119, Storj 78, ThreeFold 63, WeatherXM 51, Filecoin 50, Aethir 49, Althea 47, The Graph 45, Lava 45, Nym 44, Fetch.ai 44, Grass 42, Flux 40, Geodnet 39, Livepeer 39.

Provenance (real source mix — not all first-party; as of 2026-08-25)

• first-party: first-party series read from the network's own API / chain (318 networks with first-party telemetry)
• CoinGecko: price, market cap, FDV on 288 networks
• DefiLlama: protocol TVL, fees & revenue
• GitHub: developer-activity telemetry Every row names its source; /v1/provenance lists the full map.

Two trust guarantees

1. verify_url — every value points at the upstream source it was read from. Open it and confirm; if it doesn't match, we're wrong.
2. Bitcoin anchor — each daily batch is hashed into one Merkle root (e.g. the 2026-08-09 batch: 1,369 values -> 9cd92fde04...987318b7), submitted to OpenTimestamps across 4 independent calendars and confirming on the Bitcoin blockchain. We cannot backdate or alter a batch after the fact.

Honesty policy

• Where a network publishes no free feed, it is flagged in the coverage map. We never fabricate a value to fill a gap.
• No trading-performance figures are published. No personal contact information is collected or sold.

Featured analysis

• https://kairossignal.com/divergence.html — "Two compute networks, the same eleven days, opposite directions": io.net grew registered devices +23.9% while delivering +0.0% more compute-hours; Akash GPU utilisation rose 31.6%->61.2% on a shrinking fleet. Only measurable with both halves of the utilisation ratio, timestamped — which is the product.

Agent Quickstart (3 API calls → paid data)

# 1. Register (free, $5 credits (first 3 keys per IP per 30 days), no card)
curl -X POST https://kairossignal.com/v1/credits/register \
  -H "Content-Type: application/json" \
  -d '{"email":"your-agent@example.com","agent_name":"your-agent"}'
# → {"api_key":"abc123...","credits_balance":5.0}

# 2. Browse products
curl https://kairossignal.com/v1/credits/pricing

# 3. Purchase (deducts from balance, delivers data inline)
curl -X POST https://kairossignal.com/v1/credits/purchase \
  -H "Content-Type: application/json" \
  -H "X-API-Key: abc123..." \
  -d '{"product_key":"depin_intel_bundle"}'
# → {"status":"purchased","data":{...457 networks...}}

# Top up when free credits run out — autonomous, USDC on Base:
curl -X POST https://kairossignal.com/v1/credits/topup \
  -H "X-API-Key: abc123..." \
  -H "Content-Type: application/json" \
  -d '{"method":"crypto","amount":25,"from_address":"0xYourWallet"}'
# First complete the wallet challenge and signature verification described above.
# The successful quote supplies the current receiving address, exact amount and expiry.
# Send only after that quote; credit requires a finalized Base transfer.

MCP Endpoint

Connect at https://kairossignal.com/mcp/ (MCP 2024-11-05, streamable HTTP) Tools: register_agent, list_products, purchase_data, topup_credits, check_balance, list_datasets, get_stats, get_data_dictionary, get_derivation_ledger, fetch_dataset, verify_footprint

MCP Server

MCP endpoint (streamable HTTP): https://kairossignal.com/mcp Available tools: register_agent, list_products, purchase_data, topup_credits, check_balance, list_datasets, get_stats, get_data_dictionary, get_derivation_ledger, fetch_dataset, verify_footprint Auth: X-API-Key header (register free at /v1/credits/register for $5 credits (first 3 keys per IP per 30 days)) .well-known/mcp.json: https://kairossignal.com/.well-known/mcp.json

HTML surfaces for humans (and agents that read HTML)

• https://kairossignal.com/ — the product front page: what the API is, the provenance model, pricing.
• https://kairossignal.com/depin-data-api — the REST endpoints and the live coverage counts (stamped from live truth on the page itself); row shape and auth.
• https://kairossignal.com/depin-supply-data — first-party supply telemetry; what "supply" means and how revisions are kept.
• https://kairossignal.com/depin-intelligence — the working method: definitions before calculations, calculations before interpretation.
• https://kairossignal.com/diligence — evidence-based DePIN diligence: what we measure, what we can't, and why that matters.
• https://kairossignal.com/pricing — tiers: free key ($5 credits (first 3 keys per IP per 30 days), first 3 keys per IP per 30 days), Design Partner $199/mo, Pro, Enterprise.
• https://kairossignal.com/network/ — per-network pages with live metrics and sources.
• https://kairossignal.com/blog/ — the research brief archive; every claim sourced.

Not investment advice

Kairos Signal is not a broker-dealer, investment advisor, or financial services provider. Nothing published here is a recommendation to buy or sell any asset. All outputs are measurements and research, for informational purposes only, without warranty. Terms: https://kairossignal.com/terms Disclaimer: https://kairossignal.com/disclaimer