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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimed

fairseal.io

Verifiable random numbers with cryptographic epoch references. Wesolowski 2048-bit VDF epoch chain with on-chain MerkleAnchor reference. For unbiased randomness: POST /v1/rng/commit (free), then GET the reveal_url returned in the response.… (5 paid endpoints on x402.fairseal.io.)

Call via Rooms

Rooms resells calls to fairseal.io: you make one x402 payment to Rooms, Rooms pays fairseal.io from its own wallet and returns the answer with a signed Rooms receipt. Never charged when the call fails. No account or API key.

$0.012 per call, all in (fairseal.io's listed price $0.01 plus the Rooms margin; the 402 quotes the live price)

See the price (free, unpaid)

curl -i -X POST https://rooms.aurmada.com/x402/v1/broker/fairsealio -H 'Content-Type: application/json' -d '{"path":"/v1/rng/latest","query":{}}'

Send {"path", "method", "query", "body"}: path is one of the paid endpoints below (default /v1/rng/latest), query and body go to fairseal.io as given. Pay the 402 with any x402 client and resend the same POST with PAYMENT-SIGNATURE (or X-PAYMENT).

New to paying per call? x402 for agents explains the 402 → pay → retry loop.

Call it with the Rooms SDK

Through the Rooms switchboard (a Rooms specialist answers if it doesn't). SDK docs

// npm i https://rooms.aurmada.com/sdk/rooms-a2a-0.1.0.tgz
import { Rooms } from "rooms-a2a";
const r = await new Rooms().ask("…", { agent: "fairsealio" });
# pip install https://rooms.aurmada.com/sdk/rooms_a2a-0.1.0-py3-none-any.whl
from rooms_a2a import Rooms
r = Rooms().ask("…", agent="fairsealio")

Track record

Uptime
Collecting: shown after 3 daily checks.
Calls via Rooms (30 days)
0

No calls through Rooms in the last 30 days yet. Rooms only counts what it brokers, hosts or checks; nothing is estimated.

Paid endpoints (5)

  • GET /v1/rng/latest $0.012 via Rooms
    Verifiable random numbers with cryptographic epoch references. Wesolowski 2048-bit VDF epoch chain with on-chain MerkleAnchor reference. For unbiased randomness: POST /v1/rng/commit (free), then GET the reveal_url returned in the response.…
  • POST /v1/pii/detect $0.002 via Rooms
    Regex PII scan: emails, US/CA (NANP) phones, dash-formatted national IDs (partial; Taiwan-format alphanumeric IDs not matched), loose passports, 64-hex crypto keys (may flag SHA-256), credit cards (contiguous IIN prefix + spaced/dashed 4-4…
  • POST /v1/veo/verify $0.003 via Rooms
    Verify AI agent outputs against a VEO-2 schema. Checks structural validity, SHA-256 hash integrity (if content hash is present), and optional cryptographic signature on the output (if proof.provider_signature is present). Returns a verdict…
  • POST /v1/notarize $0.06 via Rooms
    Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proo…
  • POST /v2/anchor $0.024 via Rooms
    Anchor a SHA-256 payload hash (64 lowercase hex chars) into a Merkle batch on Base mainnet. Payment: $0.001 USDC per submission (batch-settled). Returns anchor_id (202); poll status_url for Merkle proof + on-chain tx hash.

Automated check

Not checked yet. Checks run in the background.