Annalist
api.annalist.dev · 35 paid endpoints · listed 2026-10-27
One watched public API's contract record: current version, operation count and keys, deprecated operations, security schemes, and every dated change in the last 90 days with what broke. From the provider's published OpenAPI description, read daily. Without name=, lists the APIs we watch. Signed.
livelast check 5 days ago
100%valid x402 answers, 72 h
$0.045USDC received on Base, 7 days
6distinct payers, 7 days
55.8score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.annalist.dev/v1/ai/retirements Retirement calendar for AI models across platforms: shutdown dates, 'not sooner than' floors, states and recommended replacements from the official Anthropic, O | $0.005 | Base, Solana |
| GET | api.annalist.dev/v1/apis/api One watched public API's contract record: current version, operation count and keys, deprecated operations, security schemes, and every dated change in the last | $0.005 | Base, Solana |
| GET | api.annalist.dev/v1/crowd/changes For bots that poll: crowd-state events (a perp entering or leaving a state) since a timestamp, newest first, up to 7 days back. Each event is signed with the ma | $0.005 | Base, Solana |
| GET | api.annalist.dev/v1/web/readiness One site's agent readiness from our weekly census of 65,000 top sites: UCP and ACP agent checkout (its MCP endpoint, capabilities, payment handlers), A2A and MC | $0.005 | Base, Solana |
| GET | api.annalist.dev/v1/ai/changes Recent changes to AI model prices and availability across providers, newest first: price cuts and raises per field (with the change), models added and removed, | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/ai/prices AI model prices per million tokens (input, output, cache, batch) with context window, for about 4,000 models across providers. With model=: its price history an | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/apis/changes Dated contract changes in widely used public APIs (Stripe, GitHub, OpenAI, Twilio, Slack, Plaid, Datadog and more), from their published OpenAPI descriptions re | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/checks/changes What changed in x402 service listings, from daily snapshots of Coinbase's Bazaar: price raises and cuts, endpoints added and dropped, new and departed services, | $0.01 | Base |
| GET | api.annalist.dev/v1/checks/seller Checks for an x402 seller wallet on Base: the services that pay out to it and their grades, and USDC received over 30 days with payers, repeat payers and fake-v | $0.01 | Base |
| GET | api.annalist.dev/v1/checks/service Use before paying an x402 service: independent checks by host or URL. Uptime and latency from repeated unpaid probes, whether the quoted price and payout wallet | $0.01 | Base |
| GET | api.annalist.dev/v1/commerce/stores Stores from our weekly census of 65,000 top sites, filtered by what a shopping agent needs: ships to a country, UCP agent checkout and its capabilities, payment | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/crowd/market Market-wide crowding on Hyperliquid: breadth of 7-day moves, how many perps are up 50%+/100%+ in a week, share of perps with funding in their own top/bottom 5%, | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/crowd/perp Use before acting on a Hyperliquid perpetual to see whether it is crowded or in a hype state and what historically followed. Returns 7-day move, funding (hourly | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/hip3/perp Use before trading a stock, index, commodity or FX perpetual on Hyperliquid (builder-deployed, HIP-3; coins like xyz:NVDA, xyz:GOLD, xyz:SP500): price and 1h, 2 | $0.01 | Base |
| GET | api.annalist.dev/v1/mcp/changes Tool changes across remote MCP servers in the Official MCP Registry, newest first: tools added, removed or redefined (description, input schema or annotations), | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/mcp/server Use before connecting a remote MCP server: independent checks by registry name or URL. Uptime and connect time from daily probes (initialize and tools/list; no | $0.01 | Base |
| GET | api.annalist.dev/v1/outcomes/market One Hyperliquid outcome (prediction) market by id: readable title, structured details (teams, thresholds, deadlines, official source), each side's implied proba | $0.01 | Base |
| GET | api.annalist.dev/v1/packages/check Supply-chain check of a popular package (the 8,000 most used on each of npm, PyPI, crates.io and Go): latest version and release activity, maintainers or owners | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/prices/benchmarks Price benchmarks for x402 services by category (seller tags such as search, llm, weather, market-data): how many services, price percentiles (each service count | $0.01 | Base |
| GET | api.annalist.dev/v1/prices/service Price history of an x402 service by host or URL: each listed endpoint's price, first-seen date and changes, price changes in 30 days (raised, lowered, delisted) | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/smart/perp Use before acting on a Hyperliquid perpetual to see how its most profitable traders are positioned: how many wallets in a 200-wallet smart-money cohort are long | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/vaults/hlp Hyperliquid's own market-making vault (HLP), which takes over liquidated positions: account value, APR, PnL over a day, week, month and all time, and its net po | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/web/census Our weekly census of 65,000 top sites: how many sites and stores publish UCP or ACP agent-checkout profiles, agent and MCP cards and llms.txt, which AI crawlers | $0.01 | Base, Solana |
| GET | api.annalist.dev/v1/checks/top Leaderboards from our independent checks of x402 services: most real (wash-adjusted) paying customers, most reliable, and flagged services (price or wallet mism | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/crowd/states Every Hyperliquid perp currently in a crowd state (7-day moves of +50/+100/+200%, funding in its own top or bottom 5%, Wikipedia attention spikes, new listings) | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/deps/digest One call for all of an agent's dependencies: npm, PyPI, crates.io and Go packages (new publishers, install scripts, license changes), public API contracts (brea | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/hip3/market Overview of every builder-deployed (HIP-3) perpetual on Hyperliquid, mostly 24/7 stock, index, commodity and FX markets: each exchange's markets, open interest | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/liq/perp Use before opening, sizing or holding a Hyperliquid perpetual position to see where forced selling or buying would hit: known longs liquidating within 1 to 20% | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/mcp/top Leaderboards from our independent checks of remote MCP servers in the Official MCP Registry: most reliable (up in 99%+ of probes, fastest first), servers whose | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/outcomes/list Every live Hyperliquid outcome (prediction) market: readable title, category (sports, price, ipo, policy_rate, awards), deadline, each side's price as implied p | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/packages/watch Supply-chain watch across the 8,000 most-used packages on each of npm, PyPI, crates.io and Go, newest first: releases by a new publisher account, maintainer and | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/smart/market Where Hyperliquid's most profitable traders are positioned across all perps: the cohort's overall net long or short, the coins it is most net long and most net | $0.02 | Base, Solana |
| GET | api.annalist.dev/v1/liq/market Liquidation pressure across Hyperliquid's largest perps: for each, the known longs liquidating within 5% below the mark and shorts within 5% above it, cascade r | $0.03 | Base, Solana |
| GET | api.annalist.dev/v1/perp/full One call, one payment for everything on a Hyperliquid perpetual: crowd state with base rates for what usually followed (as /v1/crowd/perp), smart-money position | $0.03 | Base, Solana |
| GET | api.annalist.dev/v1/crowd/history Signed historical crowd-state events for backtesting: up to 30 days per call, optionally filtered by coin and state. The archive is append-only and its daily ha | $0.05 | Base, Solana |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | api.annalist.dev/v1/ai/changes | 402 | 341 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-10-31 | 3 | $0.015 | |
| 2026-10-30 | 3 | $0.015 | |
| 2026-10-29 | 1 | $0.005 | |
| 2026-10-27 | 2 | $0.01 |
Is this your API?
Add the live badge to your docs: 
Claim it for free with
<a href="https://logicnodes.io/observatory/p/api.annalist.dev"><img src="https://logicnodes.io/observatory/badge/api.annalist.dev.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.annalist.dev