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Publications Compare

by Publication Release Comparison in Developer tools

x402 APIPassing, checked 4 h ago

Compare two caller-supplied, integrity-valid public/synthetic artifacts of the same publication; enumerate changed fields, findings and source IDs without returning draft text. No database, source fetching, causal explanation or editorial approval.

POST
https://www.mahastrategies.com/api/v1/library/publications/compare
Price
$0.017
per call in USDC
Uptime
100%
last 30 days
Response time
236 ms
301 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://www.mahastrategies.com/api/v1/library/publications/compare

Each call costs $0.017004 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://www.mahastrategies.com/api/v1/library/publications/compare
content-type: application/json

{
  "after": "same-as-before",
  "before": {
    "artifactSha256": "sha256:54c049b30cf7155ce5f61705eb908b5e0ca1b80baa2cd7d83cc7b1f9428f9060",
    "author": "Codex — AI drafting and source review",
    "boundary": "Local development only. Cryptographically signed authorizations and simulated settlement; no token balance, funds transfer, RPC call or public publication.",
    "collectionId": "agent-infrastructure-evidence",
    "contentSha256": "sha256:128bbeca75a55df0ee4787b7c9b7fe393f160d60c02f9386587def49deb87924",
    "editorial": {
      "humanApproval": "pending",
      "scope": "local-development-only",
      "sourceReview": "Synthetic fixture only."
    },
    "findings": [
      {
        "id": "finding1",
        "sourceIds": [
          "source1"
        ],
        "statement": "Synthetic finding, not evidence."
      }
    ],
    "license": {
      "copyrightTransferred": false,
      "grant": "Non-exclusive internal analysis, grounding and caching of this local preview. Preserve source attribution and review disclosures.",
      "id": "maha-local-internal-use-v1",
      "modelTrainingRightsGranted": false,
      "publicPublicationAuthorized": false,
      "redistributionAllowed": false,
      "resaleAllowed": false
    },
    "licenseSha256": "sha256:93c4d3e27978f4d1b514ef3a566d346b0e4f29c1cd15ca84f349a51dc6a414b1",
    "limitations": [
      "Synthetic fixture, no evidence."
    ],
    "markdown": "SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. ",
    "publicationId": "synthetic-review",
    "releaseId": "1.0.0",
    "releasedOn": "2026-10-15",
    "schemaVersion": "maha-agent-publication/1",
    "sources": [
      {
        "id": "source1",
        "inspectedOn": "2026-10-15",
        "locator": "1",
        "title": "Example",
        "url": "https://example.org"
      }
    ],
    "summary": "Synthetic fixture, not research.",
    "title": "Synthetic example"
  },
  "dataClass": "synthetic"
}

Parameters

ParameterTypeRequiredDescription
afterobject or stringYes
beforeobjectYes
dataClassstringYes One of: public, synthetic.

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.017004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/library/publications/compare' \
  -H 'content-type: application/json' \
  --data-raw '{"after":"same-as-before","before":{"artifactSha256":"sha256:54c049b30cf7155ce5f61705eb908b5e0ca1b80baa2cd7d83cc7b1f9428f9060","author":"Codex \u2014 AI drafting and source review","boundary":"Local development only. Cryptographically signed authorizations and simulated settlement; no token balance, funds transfer, RPC call or public publication.","collectionId":"agent-infrastructure-evidence","contentSha256":"sha256:128bbeca75a55df0ee4787b7c9b7fe393f160d60c02f9386587def49deb87924","editorial":{"humanApproval":"pending","scope":"local-development-only","sourceReview":"Synthetic fixture only."},"findings":[{"id":"finding1","sourceIds":["source1"],"statement":"Synthetic finding, not evidence."}],"license":{"copyrightTransferred":false,"grant":"Non-exclusive internal analysis, grounding and caching of this local preview. Preserve source attribution and review disclosures.","id":"maha-local-internal-use-v1","modelTrainingRightsGranted":false,"publicPublicationAuthorized":false,"redistributionAllowed":false,"resaleAllowed":false},"licenseSha256":"sha256:93c4d3e27978f4d1b514ef3a566d346b0e4f29c1cd15ca84f349a51dc6a414b1","limitations":["Synthetic fixture, no evidence."],"markdown":"SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. ","publicationId":"synthetic-review","releaseId":"1.0.0","releasedOn":"2026-10-15","schemaVersion":"maha-agent-publication/1","sources":[{"id":"source1","inspectedOn":"2026-10-15","locator":"1","title":"Example","url":"https://example.org"}],"summary":"Synthetic fixture, not research.","title":"Synthetic example"},"dataClass":"synthetic"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://www.mahastrategies.com/api/v1/library/publications/compare' \
  -H 'content-type: application/json' \
  --data-raw '{"after":"same-as-before","before":{"artifactSha256":"sha256:54c049b30cf7155ce5f61705eb908b5e0ca1b80baa2cd7d83cc7b1f9428f9060","author":"Codex \u2014 AI drafting and source review","boundary":"Local development only. Cryptographically signed authorizations and simulated settlement; no token balance, funds transfer, RPC call or public publication.","collectionId":"agent-infrastructure-evidence","contentSha256":"sha256:128bbeca75a55df0ee4787b7c9b7fe393f160d60c02f9386587def49deb87924","editorial":{"humanApproval":"pending","scope":"local-development-only","sourceReview":"Synthetic fixture only."},"findings":[{"id":"finding1","sourceIds":["source1"],"statement":"Synthetic finding, not evidence."}],"license":{"copyrightTransferred":false,"grant":"Non-exclusive internal analysis, grounding and caching of this local preview. Preserve source attribution and review disclosures.","id":"maha-local-internal-use-v1","modelTrainingRightsGranted":false,"publicPublicationAuthorized":false,"redistributionAllowed":false,"resaleAllowed":false},"licenseSha256":"sha256:93c4d3e27978f4d1b514ef3a566d346b0e4f29c1cd15ca84f349a51dc6a414b1","limitations":["Synthetic fixture, no evidence."],"markdown":"SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. ","publicationId":"synthetic-review","releaseId":"1.0.0","releasedOn":"2026-10-15","schemaVersion":"maha-agent-publication/1","sources":[{"id":"source1","inspectedOn":"2026-10-15","locator":"1","title":"Example","url":"https://example.org"}],"summary":"Synthetic fixture, not research.","title":"Synthetic example"},"dataClass":"synthetic"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.017004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.017004" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.017004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Flibrary%2Fpublications%2Fcompare&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/library/publications/compare", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "after": "same-as-before",
    "before": {
      "artifactSha256": "sha256:54c049b30cf7155ce5f61705eb908b5e0ca1b80baa2cd7d83cc7b1f9428f9060",
      "author": "Codex \u2014 AI drafting and source review",
      "boundary": "Local development only. Cryptographically signed authorizations and simulated settlement; no token balance, funds transfer, RPC call or public publication.",
      "collectionId": "agent-infrastructure-evidence",
      "contentSha256": "sha256:128bbeca75a55df0ee4787b7c9b7fe393f160d60c02f9386587def49deb87924",
      "editorial": {
        "humanApproval": "pending",
        "scope": "local-development-only",
        "sourceReview": "Synthetic fixture only."
      },
      "findings": [
        {
          "id": "finding1",
          "sourceIds": [
            "source1"
          ],
          "statement": "Synthetic finding, not evidence."
        }
      ],
      "license": {
        "copyrightTransferred": false,
        "grant": "Non-exclusive internal analysis, grounding and caching of this local preview. Preserve source attribution and review disclosures.",
        "id": "maha-local-internal-use-v1",
        "modelTrainingRightsGranted": false,
        "publicPublicationAuthorized": false,
        "redistributionAllowed": false,
        "resaleAllowed": false
      },
      "licenseSha256": "sha256:93c4d3e27978f4d1b514ef3a566d346b0e4f29c1cd15ca84f349a51dc6a414b1",
      "limitations": [
        "Synthetic fixture, no evidence."
      ],
      "markdown": "SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. ",
      "publicationId": "synthetic-review",
      "releaseId": "1.0.0",
      "releasedOn": "2026-10-15",
      "schemaVersion": "maha-agent-publication/1",
      "sources": [
        {
          "id": "source1",
          "inspectedOn": "2026-10-15",
          "locator": "1",
          "title": "Example",
          "url": "https://example.org"
        }
      ],
      "summary": "Synthetic fixture, not research.",
      "title": "Synthetic example"
    },
    "dataClass": "synthetic"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.017004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.017004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/library/publications/compare",
        json={
            "after": "same-as-before",
            "before": {
                "artifactSha256": "sha256:54c049b30cf7155ce5f61705eb908b5e0ca1b80baa2cd7d83cc7b1f9428f9060",
                "author": "Codex \u2014 AI drafting and source review",
                "boundary": "Local development only. Cryptographically signed authorizations and simulated settlement; no token balance, funds transfer, RPC call or public publication.",
                "collectionId": "agent-infrastructure-evidence",
                "contentSha256": "sha256:128bbeca75a55df0ee4787b7c9b7fe393f160d60c02f9386587def49deb87924",
                "editorial": {
                    "humanApproval": "pending",
                    "scope": "local-development-only",
                    "sourceReview": "Synthetic fixture only.",
                },
                "findings": [
                    {
                        "id": "finding1",
                        "sourceIds": [
                            "source1",
                        ],
                        "statement": "Synthetic finding, not evidence.",
                    },
                ],
                "license": {
                    "copyrightTransferred": False,
                    "grant": "Non-exclusive internal analysis, grounding and caching of this local preview. Preserve source attribution and review disclosures.",
                    "id": "maha-local-internal-use-v1",
                    "modelTrainingRightsGranted": False,
                    "publicPublicationAuthorized": False,
                    "redistributionAllowed": False,
                    "resaleAllowed": False,
                },
                "licenseSha256": "sha256:93c4d3e27978f4d1b514ef3a566d346b0e4f29c1cd15ca84f349a51dc6a414b1",
                "limitations": [
                    "Synthetic fixture, no evidence.",
                ],
                "markdown": "SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. SYNTHETIC fixture; no facts have been established. ",
                "publicationId": "synthetic-review",
                "releaseId": "1.0.0",
                "releasedOn": "2026-10-15",
                "schemaVersion": "maha-agent-publication/1",
                "sources": [
                    {
                        "id": "source1",
                        "inspectedOn": "2026-10-15",
                        "locator": "1",
                        "title": "Example",
                        "url": "https://example.org",
                    },
                ],
                "summary": "Synthetic fixture, not research.",
                "title": "Synthetic example",
            },
            "dataClass": "synthetic",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402236 ms$0.017
9 h agoPassed402301 ms$0.017