www.mahastrategies.com

Name: www.mahastrategies.com
Price: 0.169001 USDC
Availability: InStock

No description published for this endpoint.

InfraLiveeip155:8453Exactvia facilitator:thirdweb

https://www.mahastrategies.com/api/v1/compute/chemistry/enzyme-kinetics-fit

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far.

$71.48

Verified settled volume

1,272 settlements proven x402 by their on-chain EIP-3009 marker.

$0.169

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "asset": "USDC",
  "error": "Payment Required",
  "payee": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
  "price": 0.169001,
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
      "amount": "169001",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "network": "base-mainnet",
  "protocol": "HTTP 402 v2",
  "resource": {
    "url": "https://www.mahastrategies.com/api/v1/compute/chemistry/enzyme-kinetics-fit",
    "tags": [
      "compute",
      "chemistry",
      "enzyme-kinetics-fit",
      "bounded-computation",
      "evidence"
    ],
    "iconUrl": "https://www.mahastrategies.com/icon.png",
    "mimeType": "application/json",
    "description": "Fit supplied substrate/rate pairs by reciprocal Lineweaver-Burk OLS; report Km, Vmax and residuals. Exposes noise bias; no parameter confidence interval. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.",
    "serviceName": "Enzyme-kinetics fit"
  },
  "preflight": {
    "url": "/api/v1/discovery/preflight?productId=chemistry-enzyme-kinetics-fit",
    "method": "POST",
    "productId": "chemistry-enzyme-kinetics-fit"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "velocity": [
              3.3333333333333335,
              5,
              6.666666666666667,
              8
            ],
            "dataClass": "synthetic",
            "substrate": [
              1,
              2,
              4,
              8
            ]
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "data": {
              "result": {
                "findings": {
                  "Km": 2,
                  "Vmax": 10,
                  "method": "Lineweaver-Burk unweighted reciprocal OLS; low-substrate noise a…",
                  "residuals": [
                    0
                  ],
                  "transformedFit": {
                    "slope": 0.2,
                    "rSquared": 1,
                    "intercept": 0.1,
                    "residuals": [
                      -5.55111512313e-17
                    ],
                    "degreesOfFreedom": 2,
                    "slopeStandardError": 6.54773818076e-17,
                    "residualStandardError": 4.38854183572e-17
                  },
                  "parameterConfidenceInterval": null
                },
                "limitations": [
                  "Public or synthetic research inputs only; no patient, personal g…"
                ],
                "methodVersion": "maha-science50/1.0.0",
                "numericPrecision": "IEEE754-double; finite outputs rounded to 12 significant digits"
              },
              "version": "maha-legacy-adapter/1",
              "inputHash": "sha256:8987952611c1b0692cfe27c718e5f3b3def1d1dc1fee3415fc68903c2…",
              "productId": "chemistry-enzyme-kinetics-fit",
              "resultHash": "sha256:c9ed1fb190eecc1379d6b4402dbaf2f78c86094f0019aeb9e42d17233…",
              "limitations": [
                "Public or synthetic inputs only. Caller labels are declarations,…"
              ],
              "chargedAmount": "169001",
              "sourceContractAmount": "169000"
            },
            "proof": {
              "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
            },
            "success": true
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "dataClass",
                  "substrate",
                  "velocity"
                ],
                "properties": {
                  "velocity": {
                    "type": "array",
                    "maxItems": 128,
                    "minItems": 1
                  },
                  "dataClass": {
                    "enum": [
                      "public",
                      "synthetic"
                    ],
                    "type": "string"
                  },
                  "substrate": {
                    "type": "array",
                    "maxItems": 128,
                    "minItems": 1
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "success",
                  "data",
                  "proof"
                ],
                "properties": {
                  "data": {
                    "type": "object"
                  },
                  "proof": {
                    "type": "object"
                  },
                  "success": {
                    "const": true
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    },
    "maha-modular-contract": {
      "info": {
        "id": "chemistry-enzyme-kinetics-fit",
        "contractHash": "sha256:13ae4360001154831d53fa175582ee8cbe96ad55713fb310d03882fa48955bb4",
        "declarationUrl": "https://www.mahastrategies.com/api/v1/discovery/describe?id=chemistry-enzyme-kinetics-fit",
        "requiresBuyerRecoveryAdapter": true
      },
      "schema": {
        "type": "object"
      }
    },
    "maha-input-bound-recovery": {
      "info": {
        "binding": {
          "nonce": "0x + lowercase HEX(SHA256(RFC8785({version,productId,inputHash,recoverySecret})))",
          "version": "maha-api-v1/1",
          "inputHash": "sha256: + lowercase HEX(SHA256(RFC8785(strictly parsed input)))",
          "productId": "chemistry-enzyme-kinetics-fit",
          "recoverySecret": "32 cryptographically random bytes encoded as 64 lowercase hexadecimal characters; keep private",
          "automaticRepayment": false,
          "paymentSignatureHeader": "base64 x402-v2 PaymentPayload with EIP-3009 TransferWithAuthorization"
        },
        "version": "1",
        "withdrawal": "stops-new-purchases; retained-paid-result-remains-recoverable",
        "secretHeader": "X-Maha-Recovery-Secret",
        "inputHashHeader": "X-Maha-Input-Hash",
        "retentionSeconds": 86400,
        "automaticRepayment": false,
        "complimentaryCorrection": false,
        "receiptRetentionSeconds": 7776000
      },
      "schema": {
        "type": "object"
      }
    }
  },
  "x402Version": 2,
  "auth_standard": "EIP-3009"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.169001USDC≈ $0.169001 USD

on Base · exact scheme

Pay 0.169001 USDC on Base to 0xec84…2de28. The signed payment is good for 1 minute.

Paid to: 0xec84…2de28
USD Coin contract: 0x8335…02913
Payment window: 1 minute
As published: 169001 smallest units
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://www.mahastrategies.com/api/v1/compute/chemistry/enzyme-kinetics-fit",
    "description": "",
    "maxAmountRequired": "169001",
    "maxTimeoutSeconds": 60
  }
]

Provenance

Seen in the source catalog: 2026-10-16 03:57Z
Last indexed by Roundhouse: 2026-10-19 02:45Z
Last enriched (probe, favicon, geo): 2026-10-19 03:45Z
x402 version: 1
Max timeout: 60s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service www.mahastrategies.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=www.mahastrategies.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://www.mahastrategies.com/api/v1/compute/chemistry/enzyme-kinetics-fit, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.