Plasticity
by Plasticity · Natural language processing APIs for text parsing and knowledge queries
BenchRank score
Screenshots of Plasticity
Homepage
Overview
Plasticity provides natural language processing APIs for extracting information from unstructured text. Three engines are listed: Sapien for entities, relationships and parsing, Cortex for querying a knowledge graph of 240+ million facts, and Lingua for intent and slot parsing with a natural language response. Access is by HTTP JSON requests, cloud-hosted or deployed on-premise.
- Best for
- Developers and teams needing NLP APIs to extract entities, relations and intent from text.
- Pricing
- Free below 1,000 requests a month, then usage-based from $2.00 per 1,000 Sapien requests and $3.00 per 1,000 Cortex requests, dropping to $1.00 and $1.50 above 10M requests a month.
- Runs on
- WebSelf-hosted
Strengths and trade-offs
Strengths
- Free for under 1,000 requests a month
- Per-request rates published, falling as volume rises
- HTTP JSON API usable from any programming language
- Same APIs offered for on-premise deployment
Trade-offs
- No self-serve signup; access needs a request form or sales demo
- No published price for the Lingua Dialog Engine
- On-premise and custom solutions are quoted only through sales
- Free use capped at 1,000 requests a month
Pricing
Published plans and prices from Plasticity’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
API quality
Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Pricing transparency
Whether real prices are published, self-serve signup exists, and usage costs are knowable without a sales call.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
Openness
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
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Where this comes from
The Plasticity pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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