Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
60
💰 Paid API

chemistry-calc.x402tookit.com

chemistry-calc.x402tookit.com · chemistry-calc.x402tookit.com
Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain chemistry-calc.x402tookit.com via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership

Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
60/100
grade C · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Listing drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 60/100
Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (24 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown ▾ click to collapse breakdown ▴
n/a Agent card n/a
Not applicable: a paid API listed by agentic.market. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
partial Live endpoint 15/25
Our probe received an HTTP 402 payment challenge from the host: live, but paid.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our probes looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: chemistry-calc.x402tookit.com (https://chemistry-calc.x402tookit.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
n/a Security declaration n/a
Not applicable: no A2A agent card served.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Listing history

1 snapshot Every change to the catalogue entry
Agent card snapshots
Captured Hash Snapshot
2026-10-21 05:03:31 current 535172419d44… view →
Uptime
not graded
catalogue listing · no agent card to probe
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Verified live · 402 challenge Dispute or improve this rating
From $0.0200 per call
Endpoint Price Currency
https://chemistry-calc.x402tookit.com/ph-calc 0.02 USDC
https://chemistry-calc.x402tookit.com/dilution 0.02 USDC
https://chemistry-calc.x402tookit.com/molarity 0.02 USDC
https://chemistry-calc.x402tookit.com/bond-polarity — USDC
https://chemistry-calc.x402tookit.com/element-lookup — USDC
https://chemistry-calc.x402tookit.com/empirical-formula — USDC
https://chemistry-calc.x402tookit.com/half-life — USDC
https://chemistry-calc.x402tookit.com/ideal-gas — USDC
https://chemistry-calc.x402tookit.com/limiting-reagent — USDC
https://chemistry-calc.x402tookit.com/molar-mass — USDC
https://chemistry-calc.x402tookit.com/mole-convert — USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xb531320805c5bed1d46aeadcf4f008fdf172dbda on Base · basescan ↗
Listed by facilitators Coinbase CDP · 11
Agent cardhttps://chemistry-calc.x402tookit.com
Providerhttps://chemistry-calc.x402tookit.com
Docshttps://chemistry-calc.x402tookit.com
Discovered via
agentic_market recrawl_paid

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-21 05:11:48 404 — —

Similar agents embedding-nearest

physics-calc.x402tookit.com
physics-calc.x402tookit.com · q 65%
cooking-calc.x402tookit.com
cooking-calc.x402tookit.com · q 65%
plumbing-calc.x402tookit.com
plumbing-calc.x402tookit.com · q 65%
automotive-calc.x402tookit.com
automotive-calc.x402tookit.com · q 65%
hvac-calc.x402tookit.com
hvac-calc.x402tookit.com · q 65%
math-geometry.x402tookit.com
math-geometry.x402tookit.com · q 65%

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/chemistry-calc.x402tookit.com.svg)](https://agenstry.com/agents/chemistry-calc.x402tookit.com)
[![Verified Business](https://agenstry.com/badge/chemistry-calc.x402tookit.com/identity.svg)](https://agenstry.com/agents/chemistry-calc.x402tookit.com)
[![Uptime](https://agenstry.com/badge/chemistry-calc.x402tookit.com/uptime.svg)](https://agenstry.com/agents/chemistry-calc.x402tookit.com)
[![A2A version](https://agenstry.com/badge/chemistry-calc.x402tookit.com/protocol.svg)](https://agenstry.com/agents/chemistry-calc.x402tookit.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "agentic.market",
  "service": {
    "id": "chemistry-calc-x402tookit-com",
    "name": "chemistry-calc.x402tookit.com",
    "description": "",
    "domain": "chemistry-calc.x402tookit.com",
    "provider": "chemistry-calc.x402tookit.com",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base",
      "eip155:137",
      "eip155:42161",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://chemistry-calc.x402tookit.com/bond-polarity",
        "description": "Bond type between two elements from the Pauling electronegativity difference: nonpolar covalent, polar covalent or ionic.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "Na",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "Cl",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "bond",
          "electronegativity",
          "polarity"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/dilution",
        "description": "Dilution equation C1 x V1 = C2 x V2: give any three values and get the fourth, plus solvent to add and the dilution factor.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "c1",
            "type": "number",
            "description": "",
            "example": 12,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "c2",
            "type": "number",
            "description": "",
            "example": 1,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "v2",
            "type": "number",
            "description": "",
            "example": 500,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "dilution",
          "molarity",
          "lab"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/element-lookup",
        "description": "Periodic table lookup by symbol, name or atomic number: weight, configuration, electronegativity, melting and boiling points.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "element",
            "type": "string",
            "description": "",
            "example": "Fe",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "periodic-table",
          "element"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/empirical-formula",
        "description": "Empirical formula from percent or gram composition by element, and the molecular formula if you give the molar mass.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "composition",
            "type": "string",
            "description": "",
            "example": "C:40.0,H:6.7,O:53.3",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "empirical-formula",
          "composition",
          "stoichiometry"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/half-life",
        "description": "Radioactive decay: remaining fraction after a time, time to reach a fraction (carbon dating), decay constant and mean life.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "elapsed",
            "type": "number",
            "description": "",
            "example": 11460,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "initial",
            "type": "number",
            "description": "",
            "example": 100,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "isotope",
            "type": "string",
            "description": "",
            "example": "c-14",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "half-life",
          "radioactive-decay",
          "carbon-dating"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/ideal-gas",
        "description": "Ideal gas law PV = nRT: give any three of pressure, volume, moles and temperature and solve the fourth, in common units.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "moles",
            "type": "number",
            "description": "",
            "example": 1,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "pressure",
            "type": "number",
            "description": "",
            "example": 101.325,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "pressureUnit",
            "type": "string",
            "description": "",
            "example": "kPa",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "temperature",
            "type": "number",
            "description": "",
            "example": 273.15,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "gas-law",
          "ideal-gas",
          "pressure"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/limiting-reagent",
        "description": "Limiting reagent, theoretical yield and leftover excess for a balanced reaction from reactant masses; optional percent yield.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "product",
            "type": "string",
            "description": "",
            "example": "H2O:2",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "reactants",
            "type": "string",
            "description": "",
            "example": "H2:2:4;O2:1:16",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "limiting-reagent",
          "stoichiometry",
          "yield"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/molar-mass",
        "description": "Molar mass and percent composition by element for a formula, including brackets and hydrates such as CuSO4.5H2O.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "formula",
            "type": "string",
            "description": "",
            "example": "C6H12O6",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "molar-mass",
          "formula",
          "stoichiometry"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/molarity",
        "description": "Molarity of a solution from solute grams and volume, or the grams of solute needed to make a target molarity and volume.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "formula",
            "type": "string",
            "description": "",
            "example": "NaCl",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "molarity",
            "type": "number",
            "description": "",
            "example": 0.15,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "volumeL",
            "type": "number",
            "description": "",
            "example": 0.5,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "molarity",
          "solution",
          "lab"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/mole-convert",
        "description": "Convert between grams, moles and molecule counts for a chemical formula using Avogadro's number.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "formula",
            "type": "string",
            "description": "",
            "example": "H2O",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "grams",
            "type": "number",
            "description": "",
            "example": 18.015,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "moles",
          "avogadro",
          "stoichiometry"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://chemistry-calc.x402tookit.com/ph-calc",
        "description": "pH and pOH for a strong or weak acid or base, a hydrogen-ion concentration, or a buffer (Henderson-Hasselbalch).",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "concentration",
            "type": "number",
            "description": "",
            "example": 0.1,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "ka",
            "type": "number",
            "description": "",
            "example": 1.8e-05,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "mode",
            "type": "string",
            "description": "",
            "example": "weak-acid",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Chemistry Calculators",
        "tags": [
          "chemistry",
          "ph",
          "acid-base",
          "buffer"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.02",
      "maxAmount": "0.02",
      "avgCostPerTransaction": "0.02",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "Chemistry Calculators",
    "tags": [
      "chemistry",
      "bond",
      "electronegativity",
      "polarity",
      "dilution",
      "molarity",
      "lab",
      "periodic-table",
      "element",
      "empirical-formula",
      "composition",
      "stoichiometry",
      "half-life",
      "radioactive-decay",
      "carbon-dating",
      "gas-law",
      "ideal-gas",
      "pressure",
      "limiting-reagent",
      "yield",
      "molar-mass",
      "formula",
      "solution",
      "moles",
      "avogadro",
      "ph",
      "acid-base",
      "buffer"
    ],
    "iconUrl": ""
  }
}