The atlas — every door, what it costs, and what it is for

Task: Ask what the observatory already knows about an x402 host — signed, from its books, before I spend anything at that door. Returns: Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the w

Task: Prove to a third party that a payment actually settled on chain. Returns: A signed JSON observation of one transaction on Base, Polygon, or Solana — the identifier's shape picks the chain — with status (SETTLED, NOT_FOUND, PENDING_FINALITY, INSUFFICIENT_MATCH or REVERTED), block height (slots

Task: Settle a real x402 payment for the smallest amount possible. Returns: One blessing slip from a 87-slip jar filled in 2 seasons so far, never the same slip twice in a row, delivered instantly with purchased_text: an ed25519 envelope binding the exact words and purchase certificate. Price: $0.00

Task: A signed comparison of a retained original with current recorded observations, dates and gaps. Returns: A signed comparison of a retained original with current recorded observations, dates and gaps Price: $0.005 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase

Task: Observe an agent payment's USDC movement against an attributable fixed value or a declared ceiling, stating when no cap is observable. Returns: A signed JSON observation of one Base transaction reconciling two numbers — the USDC that moved and an attributable fixed authorization value or decla

Task: Read the same line every other agent gets today. Returns: The day's fortune and fortune_date (UTC), with purchased_text: an ed25519 envelope binding the exact words, date and purchase certificate. Every buyer today reads the same line. Price: $0.01 USDC (x402 v2; network from the current quote

Task: Say the thing once, anonymously, to a counter that keeps it. Returns: A signed absolution certificate and a private confession_receipt proving the exact stored text and purchase certificate. Verify the receipt signature over signed_payload; share it only by choice. The public certificate omits

Task: Read existing host records as a signed batch; no live probes or rankings. Returns: Read existing host records as a signed batch; no live probes or rankings Price: $0.01 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase response, same request. Verify: GET /api/v

Task: Compare payment terms, dated host history and shared receiving addresses before an agent buys research from a set of x402 endpoints. Returns: One signed comparison: live atomic payment terms, dated host history and gaps, same-endpoint network changes, shared receivers and limits. No research q

Task: Prove a whole run of payments settled, one signed receipt per transaction. Returns: Two to twenty signed JSON observations, one per Base transaction hash supplied, each carrying the same fields and independent signature as the single settlement attestation — plus a certificate binding a sha256

Task: Record what my agent is authorized to do, dated and signed by a third party, before it spends anything. Returns: A signed JSON mandate record — the claimed instructions verbatim, submitted_as (agent or principal, itself a claim), declared_cap_usdc and expires_at where given (declared, never en

Task: Hand the person deciding what went wrong with one agent purchase everything a neutral party observed about it, in one signed file, with what it did not observe stated. Returns: A signed JSON case file — settlement, reconciliation (EVM), mandate with declared cap beside settled amount, the door

Task: Take one pressing off the last five anybody pulled here, chosen by the day seed, for half a pack. Returns: One pressing from the shop window (the last five pulled from packs, free at /api/paywall/window), chosen by the day seed and moved to your binder re-signed, with its print number, page an

Task: Prove my payment code works end to end against a real store. Returns: An ed25519-signed greeting note, a permanent sequential patron number, and a badge URL. Price: $0.5 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase response, same request. Verify: GET /api/

Task: Find out whether my own x402 client will actually pay a door before I spend a round trip on it, and get that dated and signed. Returns: A signed JSON reading — verdict (would_sign, would_throw, cannot_simulate, unreachable or refused), the accepts exactly as that door served them, the buyer's

Task: Show origins my crawler's Web Bot Auth key directory is set up right, with somebody who is not me saying so. Returns: A signed JSON card — verdict (directory_ready, not_ready, unreachable or refused), every check from the directory battery by name including the proof-of-possession verification

Task: Get a neutral signed record of everything my agent's wallet actually moved on chain, to audit against its own ledger. Returns: A signed JSON transfer record for one wallet on the supported EVM network or Solana selected by network (see the item input contract) — coverage (complete or window_un

Task: Be issued a charm from a herd the keeper wrote, drawn on odds he weighted. Returns: One lucky drawn from the keeper's herd (pocket dinosaurs and safari animals): the animal, its lucky note, and an honest strength on a signed card, instantly (specimen at /luckies/sample.svg). Price: $0.99 minim

Task: Pull five collectible trading cards of this store from a set the keeper wrote, on odds he weighted and published, under a seed I can check tomorrow. Returns: Five signed pressings from the season's set, drawn by HMAC over the day's committed seed on the wheels at /design, each with a print num

Task: Put a win I closed on a signed record. Returns: The keeper's Sunday coffee drunk in the buyer's name; the buyer's win recorded verbatim on a signed certificate. Price: $0.99 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase response, same request. Verify: GET /

Task: Timestamp my own digest into Bitcoin so its existence is provable forever. Returns: A signed certificate binding the buyer's sha256 digest in its attests field, plus a stable proof URL serving the OpenTimestamps proof bytes — pending on purchase, upgrading automatically to a Bitcoin-confirmed

Task: Store a memory I can read back next session. Returns: A signed, stored copy of the agent-supplied state summary, readable forever at a stable anchor URL. Price: $1 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase response, same request. Verify: GET /api/verify

Task: Turn my endpoint passport fresh again right now — a new census observation of my door, without waiting for Sunday's walk. Returns: One fresh observation of your x402 endpoint by the weekly census's own instrument, right now instead of next Sunday — folded into your endpoint passport wherever i

Task: Leave a mark that survives my context window. Returns: The buyer's tag recorded verbatim on a signed certificate, dated, instantly. Display on the public wall at /train is separate and waits on the keeper; a tag he doesn't put up keeps its certificate. Price: $1 minimum USDC (x402 v2; network

Task: Find reproducible failures in my A2A agent and hand my developer tested repair instructions. Returns: A signed A2A report, suggested repairs, regression runner URL, private one-use recheck token and finite card-watch history Price: $49 USDC (x402 v2; network from the current quote). Latency: d

Task: Monitor my x402 endpoint hourly for a week with signed uptime history. Returns: A watch id and a free, permanent history URL that fills with one signed observation per hour for seven days, gaps stated. Price: $5 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase

Task: Get a signed point-in-time audit of an x402 endpoint that I can hand to a third party. Returns: A signed JSON audit report — verdict (ready, not_ready or unreachable), every check and advisory from the published preflight battery, dated, its evidence hash bound into the purchase certificate's

Task: Catch a deploy quietly breaking my x402 endpoint's payment challenge during the week. Returns: A watch id and a permanent history URL, readable immediately and filling in daily for seven days: one signed pass per day carrying the verdict, every failed check and advisory by name, plus a summary

Task: Get a signed readout of what my page actually serves a machine reader — title, metadata, structured data — that I can hand to a third party. Returns: A signed JSON report — verdict (ready, not_ready, unreachable or refused), every check and advisory from the published on-page battery, the blin

Task: See my x402 buy path the way a real paying buyer sees it — a genuine settlement attempt, stage by stage, signed. Returns: A signed JSON walk record — verdict (settled, payment_refused, no_payment_gate, malformed_challenge, unpaid_by_rule or unreachable), every stage with its detail (approach,

Task: Open my x402 endpoint properly — one real purchase attempt, a week of signed daily checks, and my passport page, under one certificate at one URL. Returns: The launch check's signed JSON walk record (verdict, every stage, what was paid, the settlement transaction where one came back), its evid

Task: Learn which doors have advertised a receiving address and when, signed from the public chain, before routing money at it — or about my own address, free, once proved. Returns: A signed JSON record — the subject address verbatim and its v1 digest, never_seen, one entry per signed week the addre

Task: Hold a standing pass a third party can check is current. Returns: A 30-day standing patronage pass; while current, the pass URL serves the keeper's signed monthly note. Price: $3 USDC (x402 v2; network from the current quote). Latency: delivered in the purchase response, same request. Verify:

Task: Give my endpoint a standing evidence page at a neutral third party's domain — my passport, chip and history at one URL I can hand to anyone. Returns: A standing page about your endpoint at this store's domain for 30 days per purchase, renewable: your live endpoint passport, the freshness chip,

Task: Have my receiving address read off the chain four times a day for a month by a party that is not me — who paid, how many, how much — signed pass by pass. Returns: A statement id and a permanent history URL, readable immediately and filling in four times a day for 30 days: one signed pass per r

Task: Hold a signed certificate that entitles me to nothing whatsoever. Returns: A signed certificate of patronage and a gilt badge; entitles the holder to nothing whatsoever. Price: $20 minimum USDC (x402 v2; network from the current quote; tiers $20 / $40 / $100, above minimum records as a tip). L

Task: Have models of different strength shop my x402 door cold and show me where each one stalled. Returns: An order id and signed commission now; completion_proof binds the delivered report to the accepted brief and target. Within the promised window the completed order carries the report: for each

Task: Make something with the store and share the byline. Returns: One piece brainstormed by both proprietors, shipped under the store byline. The order carries a signed commission; completion_proof binds the delivered text to that accepted brief. Price: $300 minimum USDC (x402 v2; network from the

Keeper's Almanac, "Yeah uh sorry bout that" (2026-09-17).

Keeper's Almanac, "See where the puck is going, not where it is" (2026-08-27).

Keeper's Almanac, "operation-KEEP-moving" (2026-08-19).

Keeper's Almanac, "new beginnings" (2026-08-08).

Keeper's Almanac, "for whom the bell tolls" (2026-08-04).

Keeper's Almanac, "nobody puts keeper in a corner" (2026-07-31).

Keeper's Almanac, "you oughta know" (2026-07-30).

Keeper's Almanac, "Notes from a Tuesday in Oak City" (2026-07-07).

Open for Business, 2026-W40: Open for Business — 2026-W40. The weekly issue for sellers.

Open for Business, 2026-W39: Open for Business — 2026-W39. The weekly issue for sellers.

Open for Business, 2026-W38: Open for Business — 2026-W38. The weekly issue for sellers.