Index onlineMerchant portal
Api Endpoint

CitePulse

Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Scholar + Unpaywall, no synthesis, cheap and fast.

Open interactive test console

Offering

Provider
citepulse.theaslangroupllc.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Science And Education
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://citepulse.theaslangroupllc.com/api/paper
MIME type
application/json
First seen
2026-10-16T01:50:06.715Z
Last seen
Tags
paper-lookup, academic, citations, open-access, research-agent

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 3
0.02 USDC
Atomic price: 20000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 4
0.02 USDC
Atomic price: 20000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 5
0.02 USDC
Atomic price: 20000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 6
0.02 USDC
Atomic price: 20000 · Network: eip155:480 · Asset: USDC · Scheme: exact
Payment option 7
0.02 USDC
Atomic price: 20000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Payment option 8
20000 atomic units
Atomic price: 20000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: exact
Payment option 9
20000 atomic units
Atomic price: 20000 · Network: eip155:999 · Asset: 0xb88339CB7199b77E23DB6E890353E22632Ba630f · Scheme: exact
Payment option 10
20000 atomic units
Atomic price: 20000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · Asset: 31566704 · Scheme: exact
Payment option 11
20000 atomic units
Atomic price: 20000 · Network: xrpl:0 · Asset: XRP · Scheme: exact
Payment option 12
20000000000000000 atomic units
Atomic price: 20000000000000000 · Network: eip155:56 · Asset: 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d · Scheme: exact
Raw x402 terms
[
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    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "20000",
    "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:480",
    "asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:143",
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "eip155:999",
    "asset": "0xb88339CB7199b77E23DB6E890353E22632Ba630f",
    "amount": "20000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
    "asset": "31566704",
    "amount": "20000",
    "payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I"
  },
  {
    "scheme": "exact",
    "network": "xrpl:0",
    "asset": "XRP",
    "amount": "20000",
    "payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32"
  },
  {
    "scheme": "exact",
    "network": "eip155:56",
    "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
    "amount": "20000000000000000",
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc"
  }
]

Observed health

Status
Healthy
Latest latency
50 ms
Average latency
334 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "doi": {
          "type": "string",
          "description": "DOI of the paper, e.g. 10.1038/nature12373 (preferred — exact match)"
        },
        "title": {
          "type": "string",
          "description": "Paper title (used only if doi is omitted — free-text title search, less certain)"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "doi": {
              "description": "DOI of the paper, e.g. 10.1038/nature12373 (preferred — exact match)",
              "type": "string"
            },
            "title": {
              "description": "Paper title (used only if doi is omitted — free-text title search, less certain)",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "errors": {
          "additionalProperties": {
            "properties": {
              "description": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            },
            "required": [
              "description"
            ],
            "type": "object"
          },
          "description": "Documented error responses, keyed by HTTP status code",
          "type": "object"
        },
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}