Saylor Innovations Data Desk

Drug and compound identifiers from MyChem - ChEMBL ID and max clinical phase, PubChem CID, formula, weight, IUPAC name, UNII and ChEBI ID

DataLiveeip155:8453Exactvia facilitator:payAI
Chembl id for a drugPubchem cid and molecular formulUnii code for a substanceDrug identifier cross referenceMax clinical phase of a compound
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 21 snapshots so far.
$15.76
Verified settled volume
1,657 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
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
0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

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.

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.

USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "memo": "saylor:datadesk:mychem-drug-anno",
      "name": "USD Coin",
      "version": "2",
      "facilitatorOnly": true,
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "q": "aspirin"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "note": "Identifiers from ChEMBL (CC BY-SA), PubChem (public domain), UNII and ChEBI merged by MyChem.info; max_clinical_phase 4 means approved. Clinical and prescribing information is deliberately not included, so use the label routes for that.",
          "count": 3,
          "query": "aspirin",
          "total": 300,
          "source": "MyChem.info (ChEMBL, PubChem, UNII, ChEBI)",
          "compounds": [
            {
              "name": "ASPIRIN",
              "unii": "R16CO5Y76E",
              "smiles": null,
              "chebi_id": "CHEBI:15365",
              "inchikey": "BSYNRYMUTXBXSQ-UHFFFAOYSA-N",
              "chembl_id": "CHEMBL25",
              "iupac_name": "2-acetyloxybenzoic acid",
              "pubchem_cid": 2244,
              "molecule_type": "Small molecule",
              "molecular_weight": 180.16,
              "molecular_formula": "C9H8O4",
              "max_clinical_phase": 4,
              "first_approval_year": 1950
            },
            {
              "name": "PHENYLEPHRINE",
              "unii": "1WS297W6MV",
              "smiles": null,
              "chebi_id": "CHEBI:8093",
              "inchikey": "SONNWYBIRXJNDC-VIFPVBQESA-N",
              "chembl_id": "CHEMBL1215",
              "iupac_name": "3-[(1R)-1-hydroxy-2-(methylamino)ethyl]phenol",
              "pubchem_cid": 6041,
              "molecule_type": "Small molecule",
              "molecular_weight": 167.2,
              "molecular_formula": "C9H13NO2",
              "max_clinical_phase": 4,
              "first_approval_year": 1952
            },
            {
              "name": "CAFFEINE",
              "unii": "3G6A5W338E",
              "smiles": null,
              "chebi_id": "CHEBI:27732",
              "inchikey": "RYYVLZVUVIJVGH-UHFFFAOYSA-N",
              "chembl_id": "CHEMBL113",
              "iupac_name": "1,3,7-trimethylpurine-2,6-dione",
              "pubchem_cid": 2519,
              "molecule_type": "Small molecule",
              "molecular_weight": 194.19,
              "molecular_formula": "C8H10N4O2",
              "max_clinical_phase": 4,
              "first_approval_year": 1948
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "POST",
                "PUT",
                "PATCH",
                "DELETE",
                "HEAD"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "q"
              ],
              "properties": {
                "q": {
                  "type": "string",
                  "description": "Drug or compound name"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "query",
                "compounds"
              ],
              "properties": {
                "note": {
                  "type": "string",
                  "description": "Caveat or context for reading the result"
                },
                "count": {
                  "type": "number",
                  "description": "Number of items returned"
                },
                "query": {
                  "type": "string",
                  "description": "The query as the server interpreted it"
                },
                "total": {
                  "type": "number",
                  "description": "Total number of matching items"
                },
                "source": {
                  "type": "string",
                  "description": "Data source the values come from"
                },
                "compounds": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "name": {
                        "description": "Name"
                      },
                      "unii": {
                        "type": [
                          "string",
                          "null"
                        ],
                        "description": "FDA Unique Ingredient Identifier"
                      },
                      "smiles": {
                        "description": "SMILES structure string"
                      },
                      "chebi_id": {
                        "description": "Chebi id identifier"
                      },
                      "inchikey": {
                        "description": "InChIKey structure hash"
                      },
                      "chembl_id": {
                        "description": "Chembl id identifier"
                      },
                      "iupac_name": {
                        "description": "Iupac name"
                      },
                      "pubchem_cid": {
                        "description": "Pubchem cid"
                      },
                      "molecule_type": {
                        "description": "Molecule type"
                      },
                      "molecular_weight": {
                        "description": "Molecular weight"
                      },
                      "molecular_formula": {
                        "description": "Molecular formula"
                      },
                      "max_clinical_phase": {
                        "description": "Max clinical phase"
                      },
                      "first_approval_year": {
                        "description": "First approval year"
                      }
                    }
                  },
                  "description": "Matching compounds with InChIKey, ChEMBL id, PubChem CID, formula, weight and names"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-18 03:36Z
Last indexed by Roundhouse
2026-10-26 13:46Z
Last enriched (probe, favicon, geo)
2026-10-18 11:15Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 404
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. 21 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 Saylor Innovations Data Desk 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=Saylor%20Innovations%20Data%20Desk'
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://saylorinnovations.com/api/chem/drug-annotations, 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.