cellsignal APIcellsignal.com ↗
Search and retrieve antibody, kit, and reagent data from Cell Signaling Technology. Access product specs, pricing, dilutions, and reactivity by keyword or catalog number.
What is the cellsignal API?
The Cell Signaling Technology API exposes 2 endpoints for querying CST's product catalog of antibodies, kits, and reagents. Use search_products to run full-text searches against product names, target names, and catalog numbers, or call get_product with a specific catalog number to retrieve over 15 structured fields including UniProt accessions, recommended dilutions, species reactivity, clone IDs, and per-SKU pricing.
curl -X POST 'https://api.parse.bot/scraper/a514c6df-09cc-44a4-857e-cf80a9a164e7/search_products' \
-H 'X-API-Key: $PARSE_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"page": "1",
"query": "p53",
"page_size": "5"
}'Typed, relational, agent-ready
A generated client with real types, enums, and the links between objects — the structure a flat JSON response can't carry. Autocompletes in your editor and reads cleanly to coding agents.
- Fully typed · autocompletes
- Objects link to objects
- Typed errors & pagination
Typed Python client. Set up the SDK in your uv project, then pull this API’s typed client:
uv add parse-sdk uv run parse init uv run parse add --marketplace cellsignal-com-api
uv run parse add --marketplace pulls a pinned snapshot of this canonical API — it won’t change underneath you. To customize it, subscribe and swap to your own copy.
from parse_apis.cell_signaling_technology_product_search_api import CellSignaling, Product, ProductSummary
cst = CellSignaling()
# Search for p53 antibodies
for summary in cst.productsummaries.search(query="p53", page_size=5):
print(summary.catalog_number, summary.name, summary.citation_count)
# Get full product details for the first result
product = summary.details()
print(product.catalog_number, product.name, product.host_species)
print(product.target_name, product.species_reactivity)
for dilution in product.dilutions:
print(dilution.application, dilution.dilution)
break
# Direct product lookup by catalog number
product = cst.products.get(catalog_number="9664")
print(product.name, product.product_type, product.citation_count)
print(product.target_gene_names, product.target_uniprots)
for area in product.research_areas:
print(area.primaryra, area.primaryrasubsection)
Full-text search over Cell Signaling Technology's product catalog. query matches product names, target names, and catalog numbers. Returns paginated results ordered by relevance score. Each result carries summary fields (applications, species reactivity, SKUs) sufficient for filtering client-side. Paginates via page number.
| Param | Type | Description |
|---|---|---|
| page | integer | Page number for pagination, starting at 1. |
| queryrequired | string | Search query - can be a keyword (e.g. 'p53'), target name, or catalog number (e.g. '9664'). |
| page_size | integer | Number of results per page, between 1 and 100. |
{
"type": "object",
"fields": {
"page": "integer current page number",
"total": "integer total number of matching products",
"results": "array of product summaries",
"page_size": "integer number of results per page"
},
"sample": {
"data": {
"page": 1,
"total": 187,
"results": [
{
"url": "https://www.cellsignal.com/products/primary-antibodies/p53-1c12-mouse-monoclonal-antibody/2524",
"name": "p53 (1C12) Mouse Monoclonal Antibody",
"skus": [
"2524T",
"2524S",
"2524L"
],
"is_xp": false,
"categories": [
"Primary Antibodies"
],
"applications": [
"Western Blotting",
"Immunoprecipitation"
],
"host_species": "Mouse",
"product_type": "Monoclonal Antibody",
"catalog_number": "2524",
"citation_count": 1698,
"is_recombinant": false,
"conjugation_type": "Unconjugated",
"species_reactivity": [
"Human",
"Mouse",
"Rat",
"Hamster",
"Monkey"
]
}
],
"page_size": 5
},
"status": "success"
}
}About the cellsignal API
Search the Product Catalog
The search_products endpoint accepts a query string — a keyword like p53, a target name, or a catalog number like 9664 — and returns paginated results. The page and page_size parameters (1–100 results per page) let you page through large result sets. Each result in the results array includes summary fields covering applications, species reactivity, and available SKUs, giving you enough context to filter before fetching full product details. The total field tells you how many matching products exist across all pages.
Retrieve Full Product Details
The get_product endpoint takes a catalog_number and returns a detailed product record. Structured fields include target_name, applications (e.g. Western Blot, IHC), categories, clone_id, is_xp (XP validation status), gene IDs, and UniProt accessions. The dilutions array lists per-application recommended dilution ratios. The pricing array breaks down by SKU with price, currency, and availability. The status field indicates release status, and url provides a direct link to the product page.
Data Scope
Coverage is limited to products listed in the Cell Signaling Technology catalog. The API does not expose citation counts, protocol documents, lot-specific data, or customer reviews. Products across antibody, kit, and reagent categories are included, and the applications and species_reactivity fields on search results are sufficient for narrowing down candidates before calling get_product.
The cellsignal API is a managed, monitored endpoint for cellsignal.com — not a raw scraper you maintain. Every endpoint is automatically health-checked on a schedule, and when cellsignal.com changes and a check fails, the API is automatically queued for repair and re-verified. It is built to keep working as the site underneath it changes.
This isn't an official cellsignal.com API — it's an independent, maintained REST wrapper over public data. Where the source has no official API (or only a limited one), Parse gives you a stable contract over a source that never promised one, and keeps it current. Need a new endpoint or field? You can revise it yourself in plain English and the agent rebuilds it against the live site in minutes — contributing the change back to the shared API is free.
Will this API break when the source site changes?+
Is this an official API from the source site?+
Can I fix or extend this API myself if I need a new endpoint or field?+
What happens if I call an endpoint that has an issue?+
- Cross-reference a list of catalog numbers against current pricing and SKU availability for budget planning
- Filter CST antibodies by target name and species reactivity for a specific experimental panel
- Build an internal reagent database by bulk-searching targets and storing clone IDs and UniProt accessions
- Check XP validation status (
is_xp) across a set of antibodies before ordering - Retrieve recommended dilutions per application from the
dilutionsarray to pre-populate a lab protocol template - Automate catalog number lookup by searching with a gene symbol and extracting the top-ranked product's catalog number
- Monitor product availability changes by periodically calling
get_producton a watchlist of catalog numbers
| Tier | Price | Credits/month | Rate limit |
|---|---|---|---|
| Free | $0/mo | 100 | 5 req/min |
| Hobby | $30/mo | 1,000 | 20 req/min |
| Developer | $100/mo | 5,000 | 100 req/min |
One credit = one API call regardless of which marketplace API you call. Exceeding the rate limit returns a 429 response. Authenticate with the X-API-Key header.
Does Cell Signaling Technology offer an official developer API?+
What does `get_product` return beyond what `search_products` includes?+
search_products returns summary fields sufficient for filtering: applications, species reactivity, and SKUs. get_product adds the full details: dilutions (per-application ratios), pricing (per-SKU price, currency, and availability), clone_id, is_xp, target_name, UniProt accessions, gene IDs, categories, status, and a direct url to the product page.Does pagination work the same way across large result sets?+
search_products returns a total count alongside page and page_size. You can increment page and set page_size up to 100 to walk through all matching products. Keep in mind that relevance ordering may shift if the catalog updates between requests, so sequential pagination on a live catalog is not guaranteed to be perfectly stable.Does the API return protocol documents, citations, or lot-specific certificates of analysis?+
Can I search for products by species reactivity or application directly?+
search_products endpoint accepts free-text queries, not structured filter parameters. There are no dedicated application or species filter inputs. You can include reactivity terms or application abbreviations in the query string (e.g. 'p53 human WB'), then filter the returned applications and species reactivity fields client-side. You can fork this API on Parse and revise it to add structured filter parameters if the underlying data supports it.