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Lithos

A decentralized mining pool protocol on Ergo. Miners build their own blocks; contracts pay them for proven work.

Live on Ergo mainnet
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Lithos
© 2026 Lithos Protocol. The Lithos client, its contracts and Lithos Launcher are open source under CC0.λίθος — stone
Docs/Client API/Difficulty Forwards

Quote an offer

post/forwards/offers/check

What creating an offer would lock and when it would expire, without sending anything. The same checks as POST /forwards/offers, and the conditions worth reading first as warnings.

Request body

DFOfferRequest · application/json
  • makerSidestringrequired

    The side this wallet takes.

    one oflongshort
  • strikestringrequired

    Difficulty the window's mean is measured against.

  • notionalstringrequired

    LIT base units. Each side's margin is a fifth of it.

  • windowStartinteger · int32required

    First epoch of the window, 2 to 120 epochs after the current one.

  • windowLengthinteger · int32required
    1 – 120
  • expiryinteger · int32

    Last height a fill can be mined at. Defaults to the last block of the current epoch.

Responses

200Quote for the offerDFOfferQuote▶
  • makerSidestringrequired
    one oflongshort
  • strikestringrequired
  • notionalstringrequired
  • marginstringrequired
  • windowStartinteger · int32required
  • windowLengthinteger · int32required
  • windowEndinteger · int32required
  • expiryinteger · int32required
  • expiresInBlocksinteger · int32required

    Blocks after the next one until the offer expires.

  • lastFillHeightinteger · int32required
  • litstringrequired

    LIT base units locked in the offer, the margin plus 7.5 LIT of rewards.

  • nanoErgsstringrequired

    nanoERG locked in the offer.

  • networkFeestringrequired
  • maxLossstringrequired

    The most this wallet can lose once the offer is filled, its margin plus 7.5 LIT.

  • impliedMovenumber · double
  • impliedMoveNextnumber · double
  • warningsstring[]required
400Malformed body, or terms no fill accepts.ApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

422No fill could reach the window, the notional is over the short-window limit, or no accumulator is deployed.ApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

503Node unavailable. Retry.ApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

defaultErrorApiError▶
  • errorintegerrequired

    Error code

  • reasonstringrequired

    Error message explaining the reason of the error

  • detailstringrequirednullable

    Detailed error description

← PreviousCreate an offerNext →Quote filling an offer
Request
curl -X POST "http://localhost:9000/forwards/offers/check" \
  -H "Content-Type: application/json" \
  -d '{ "makerSide": "long", "strike": "64000000000000", "notional": "10000000000000", "windowStart": 0, "windowLength": 1, "expiry": 0 }'
Response
{
  "makerSide": "long",
  "strike": "string",
  "notional": "string",
  "margin": "string",
  "windowStart": 0,
  "windowLength": 0,
  "windowEnd": 0,
  "expiry": 0,
  "expiresInBlocks": 0,
  "lastFillHeight": 0,
  "lit": "string",
  "nanoErgs": "string",
  "networkFee": "string",
  "maxLoss": "string",
  "impliedMove": 0,
  "impliedMoveNext": 0,
  "warnings": [
    "string"
  ]
}