Periodic Table

Overview

Pass either a chemical symbol or full element name to query the element directory. Each lookup returns classification details, physical state, discoverer history, and X/Y grid coordinates for table rendering. Paid plans include thermodynamic values like melting and boiling points, density, electron affinity, electronegativity, and electron shell configurations.

Live Test Periodic Table API →

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

1
2

curl "https://api.apiverve.com/v1/periodictable?name=hydrogen" \
  -H "x-api-key: your_api_key_here"

1
2
3
4
5
6
7
8

const res = await fetch('https://api.apiverve.com/v1/periodictable?name=hydrogen', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

1
2
3
4
5
6
7
8
9
10

import requests

res = requests.get(
    "https://api.apiverve.com/v1/periodictable?name=hydrogen",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/periodictable?name=hydrogen", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

{
  "status": "ok",
  "error": null,
  "data": {
    "count": 1,
    "elements": [
      {
        "name": "Hydrogen",
        "appearance": "colorless gas",
        "atomic_mass": 1.008,
        "boil": 20.271,
        "category": "diatomic nonmetal",
        "density": 0.08988,
        "discovered_by": "Henry Cavendish",
        "melt": 13.99,
        "molar_heat": 28.836,
        "named_by": "Antoine Lavoisier",
        "number": 1,
        "period": 1,
        "group": 1,
        "phase": "Gas",
        "source": "https://en.wikipedia.org/wiki/Hydrogen",
        "summary": "Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.",
        "symbol": "H",
        "xpos": 1,
        "ypos": 1,
        "wxpos": 1,
        "wypos": 1,
        "shells": [
          1
        ],
        "electron_configuration": "1s1",
        "electron_configuration_semantic": "1s1",
        "electron_affinity": 72.769,
        "electronegativity_pauling": 2.2,
        "ionization_energies": [
          1312
        ],
        "cpk-hex": "ffffff",
        "block": "s"
      }
    ]
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Use cases

Interactive Table UI

When building web-based periodic tables, developers plot tiles using provided grid coordinates and apply CPK hex values for element color schemes.

Chemistry Learning Apps

Educational platforms display atomic numbers, physical phases, and discoverer records to students reviewing fundamental chemical properties in study flashcards.

Laboratory Sample Inventory

Chemical inventory systems cross-reference raw element symbols against standardized names, blocks, and groups during reagent intake and cataloging.

Molecular Model Visualization

Render 3D molecular structures in browser viewports by mapping chemical symbols directly to standardized CPK coloring codes and classification categories.

Other ways to use Periodic Table

Set up Periodic Table on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

More in Science: