ctxstore.ai
ctxstore.ai, operated by PAAMT LLC, is persistent shared memory for AI agents delivered over the Model Context Protocol (MCP). It gives a person one memory they own that follows them across Claude, ChatGPT, Grok, Gemini, Cursor, Codex and any MCP app, connected through a Streamable HTTP MCP server at mcp.ctxstore.ai with bearer API key or OAuth 2.1 authentication. Solo use is free; collaboration is $19 a month per person.
ctxstore.ai publishes 10 API contracts indexed on the APIs.io network, including Account API, Admin API, Context API, and 7 more. Tagged areas include Company, AI Agents, Memory, MCP, and Context Management.
The ctxstore.ai catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
ctxstore.ai’s developer surface includes sandbox, authentication, documentation, engineering blog, pricing, support, and 37 more developer resources.
Kin Score
Standards implemented 6
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 10
Individual APIs this provider publishes, each with its own machine-readable definition.
ctxstore.ai MCP Server
Streamable HTTP Model Context Protocol server (serverInfo emily-context 1.0.0) exposing 33 memory tools (store_fact, get_fact, search_facts, load_context, watch_events, invite a...
ctxstore.ai Account API
The Account API from ctxstore.ai — 5 operation(s) for account.
ctxstore.ai Admin API
The Admin API from ctxstore.ai — 3 operation(s) for admin.
ctxstore.ai Context API
The Context API from ctxstore.ai — 1 operation(s) for context.
ctxstore.ai Events API
The Events API from ctxstore.ai — 1 operation(s) for events.
ctxstore.ai Facts API
The Facts API from ctxstore.ai — 3 operation(s) for facts.
ctxstore.ai Openapi.json API
The Openapi.json API from ctxstore.ai — 1 operation(s) for openapi.json.
ctxstore.ai Search API
The Search API from ctxstore.ai — 1 operation(s) for search.
ctxstore.ai Stats API
The Stats API from ctxstore.ai — 1 operation(s) for stats.
ctxstore.ai Users API
The Users API from ctxstore.ai — 1 operation(s) for users.
Scroll for all 10
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
ctxstore.ai MCP Server
Official ctxstore.ai Streamable HTTP MCP server providing persistent shared memory for AI agents. initialize probed 2026-11-04 returned HTTP 200, protocolVersion 2025-06-18, ser...
MCP SERVERAgent Skills 4
Packaged agent skills for driving this provider's APIs from an AI assistant.
share-namespace
AGENT SKILLstore-and-recall-memory
AGENT SKILLwake-context
AGENT SKILLwatch-and-audit
AGENT SKILLctxstore.ai API pricing
Prices published by ctxstore.ai. A free plan or tier is listed.
| Plan | Price |
|---|---|
| Trial | Free, no signup. Lasts 24 hours unless claimed. |
| Solo | Free |
| Collaborator | $19 a month per person. |
Plan details, limits and sources →
Rate limits
- Trial request rate: 60 requests a minute per trial
- Trial query cap: 500 queries a day
- Solo query cap: The query cap resets at midnight UTC.
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
ctxstore.ai Rate Limits
RATE LIMITSTerms of Service 1
What its API terms permit and prohibit, quoted from its own page.
Privacy & Data 1
Its role, the data it processes, retention and transfers, quoted from its own privacy page.
Eligibility 1
Who may sign up and where, quoted from its own terms.
AI Preferences 1
Its stance on AI training, inference and agents, quoted from its own pages.
Data License 1
How its data and outputs may be reused, quoted from its own terms.
Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Ctxstore Ai Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.
ctxstore.ai API Rules
SPECTRALOpenAPI Overlays 1
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
ctxstore.ai Openapi Overlay
DERIVEDJSON Schema 2
Standalone JSON Schema definitions for this provider's data models.
ContextResult
JSON SCHEMAFact
JSON SCHEMAExamples 1
Example request and response payloads for these APIs.
ctxstore.ai Mcp Tools List
EXAMPLESecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access (API Evangelist recommendations) 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 1
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 6
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll for all 8
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 6
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 6
Properties that don't map to a standard resource type
Source (apis.yml)
ctxstore.ai API — frequently asked questions
Does ctxstore.ai have an API?
Yes. APIs.io lists 10 APIs from ctxstore.ai, including ctxstore.ai MCP Server, ctxstore.ai Account API and ctxstore.ai Admin API, and 7 more.
Is there an OpenAPI specification for the ctxstore.ai API?
Yes. APIs.io indexes 9 OpenAPI specifications for ctxstore.ai, each linked for download from this page.
How do I authenticate with the ctxstore.ai API?
ctxstore.ai documents its authentication (http/oauth2 · 3 schemes). The details are profiled on APIs.io as ctxstore.ai Authentication.
How much does the ctxstore.ai API cost?
ctxstore.ai publishes its prices; its Trial plan is Free, no signup. Lasts 24 hours unless claimed. as of 2026-11-04. APIs.io lists 3 pricing plans for ctxstore.ai, with each plan's price, limits and inclusions under Pricing on this page.
Does ctxstore.ai have an MCP server?
Yes. APIs.io lists 1 MCP server for ctxstore.ai: Official ctxstore.ai Streamable HTTP MCP server providing persistent shared memory for AI agents. initialize probed 2026-11-04 returned HTTP 200, protocolVersion 2025-06-18, serverInfo emily-context 1
Is the ctxstore.ai API ready for AI agents?
ctxstore.ai has a Kin Score of 58.1 out of 100 (strong) and an Agent Readiness score of 51.0 (agent-ready), scored by API Evangelist on 2026-11-13.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.