soren.com

Every PC game currently free to KEEP (claim once, own permanently) across Steam, Epic Games Store, GOG and itch.io. Each entry verified against that store's own API before publication. Per-store status distinguishes "verified: nothing is free" from "could not check", so a zero is a fact rather than an absence of data. Self-verifying: the version field is a SHA-256 of the payload's own content.

A signed, timestamped statement that a specific SHA-256 was presented to Soren at a given moment. Use it when a counterparty must check that your output existed by then. You send only the hash — we never receive your content, so there is nothing to leak or be compelled to produce. An agent signing its own output proves nothing to anyone else. Not a legal notarisation, not proof of authorship, not proof it existed earlier. Verify with soren.com/oracle-key.json

Decodes YOUR signed EIP-3009 authorization and hands it back field by field — payer, value, recipient, validity window, nonce — so you can see exactly what the server received. Signing bugs are miserable to debug because the only feedback is usually "invalid"; this shows you which field is wrong. Free simulated failure cases live at https://soren.com/v1/conformance

Cross-store pricing for a single game — Steam, Epic, GOG and Microsoft Store side by side — with the lowest price ever observed, the date it was observed, and how far above that low the current price sits. Storefronts publish today's price and no history, so the low exists only for whoever recorded it; ours runs from 2012. Every response resolves the game's family so a base game is never compared against a season pass.

A signed, timestamped euro reference exchange rate from the European Central Bank, for any pair among the ~30 currencies it publishes. Returns the rate, the ECB reference date, the underlying euro base rates, a SHA-256 of the exact bytes returned, and an Ed25519 signature. Non-EUR pairs are crossed via EUR and that is stated in the response, because it is our calculation and not an ECB figure.

A signed, timestamped read from Base mainnet: whether a transaction landed and in which block, an address's ETH and USDC balance, or the current block height and gas price. Use the tx query when you paid over x402, received settlement_pending, and need it resolved — the transaction is in a block with status 1, or it is not. Read through a commercial node, not the public RPC. Verify with soren.com/oracle-key.json

Publicly verifiable randomness from the drand League of Entropy beacon, attested and timestamped. Use it for a fair draw between parties who do not trust each other: a distributed network emits one signed value every 30 seconds and no participant, Soren included, can choose or predict it. Soren refuses to attest a round that does not verify, and you can check the same round yourself at api.drand.sh.

A signed, timestamped US economic statistic from the Bureau of Labor Statistics — unemployment rate, CPI, nonfarm payroll, participation or average hourly earnings. Returns the latest figure with about a year of history, a SHA-256 of the exact bytes BLS returned, and an Ed25519 signature. Use it to prove what a figure WAS at a moment, because BLS revises its series. Verify with soren.com/oracle-key.json

A signed, timestamped reading from the US National Weather Service for any US coordinate. Returns the latest station observation — temperature, dewpoint, humidity, wind, pressure, visibility — with a SHA-256 of the exact bytes NOAA returned and an Ed25519 signature over both. Use it to prove what the weather was recorded as at a moment. Verify with soren.com/oracle-key.json

A heartbeat that costs money, and therefore proves more than a health check: not merely that the server answers, but that x402 verification and settlement are working right now, end to end. Suitable for a monitor that needs to know the PAID path is alive.

The same as paid-ping, plus how long verification and settlement actually took, measured server-side. For choosing your own client timeouts from evidence rather than guessing. Settlement on Base typically completes in one to three seconds, so a timeout under five seconds produces false failures on a healthy network.

A one-read dead drop for handing a credential between two agents. Use it when neither side should hold the secret first. POST it, pay once, and receive a URL that works exactly one time — the read destroys it before responding, so a lost response cannot become a second delivery. The reader pays nothing, because a recipient may hold no wallet. Max 4096 bytes. Encrypted at rest with a key returned once and never kept; blind=true stores your own ciphertext untouched.

One joke setup, with no punchline. There is no punchline and there never will be — that is the product, and every response says so in machine-readable fields (punchline_exists: false, retrying_will_not_help: true). Use it as a live test of whether your agent stops when told an answer does not exist. First call from a wallet $0.05, every call after that $0.50, capped at $10.05 per wallet per four hours.

A paid sandbox for x402 clients. Pay $0.10 and receive your own settled payment back — payer address, amount, network and settlement transaction — so a test can assert your 402, sign, retry and settle loop works against a live facilitator. Scenario parameters exercise the failure paths for free: prove your max-price guard fires, that you abandon an expired quote, handle a rejected payment, and retry a failed settlement.

Giveaways already announced but not yet claimable, with the exact date each becomes free and what it normally costs. Forward-looking information no training data can contain. Currently Epic Games Store only — no other storefront publishes a schedule.

Distributed locks, semaphores, shared rate-limit buckets and monotonic counters for multi- agent fleets. Use it when nine agents share one upstream API quota, or ten workers must not process the same job twice. Buy an operation budget once, then every call runs at ordinary HTTP latency instead of waiting on settlement. Tiers: 100 ops $0.05, 1000 $0.25, 5000 $1.00. Renew and release are always free. Every acquire returns a fencing token: a TTL lock alone is not mutual exclusion.