Install Jentic One Beta

Connect the CryptoKeyhole API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the CryptoKeyhole API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fcryptokeyhole.com%2Fcryptokeyhole" | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fcryptokeyhole.com%2Fcryptokeyhole" | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with CryptoKeyhole API.

Browse the metric catalogue for an asset and fetch any chart's full history as exact values with interval, start, end, and sma options

Read the Fear & Greed Index for one coin or for every covered coin at once

Screen perpetual futures contracts and pull one contract's snapshot history on Pro plans

Scan funding carry pairs and inspect one pair's legs, spread, and settled funding

GET STARTED

Start building with CryptoKeyhole API

Explore with Jentic One

View OpenAPI Document

Use Cases

Patterns agents use CryptoKeyhole API for, with concrete tasks.

★ Agent-driven crypto market briefings

An AI agent writing a daily crypto briefing needs sentiment, positioning, and recent price action from one source. Through Jentic it searches for the CryptoKeyhole Fear & Greed and moves operations, reads the index for each coin, then pulls the latest sharp move with its explanation, so the briefing cites a sentiment reading and a reason for the move rather than a bare price.

Call GET /fear-and-greed/coins to read every coin's index, then call GET /moves/latest with asset set to BTC and summarise the explanation

On-chain metric research

A researcher compares on-chain indicators across assets. The catalogue operation lists the metrics an asset has, and the series operation returns a chosen metric's history as exact decimal strings with finality flags, filtered by interval, start, end, and an optional sma window. Free charts come back at daily and coarser resolution without a key; hourly and ten-minute data follow the plan behind the bearer key.

Call GET /catalog with asset set to ETH, pick a metric id, then call GET /series with that metric and interval set to a daily resolution and return the last 30 values

Perpetual futures and funding carry screening

A trader looking for funding carry opportunities needs a screen of perpetual contracts and the spread between legs. The perps screener and carry scanner return the current views, and Pro plans add one contract's snapshots, one pair's legs and spread history, and a contract's settled funding, so an agent can shortlist a pair and then check how its spread has behaved.

Call GET /carry to list carry pairs, choose one pair id, then call GET /carry/history with pair set to that id and report how its spread changed

Chart data exports for reporting

A reporting job needs chart data as a file for a spreadsheet or notebook. The export operation, available on Plus and higher plans, downloads a metric series with the same interval, start, end, and smoothing options as the series read, in the format set by the format parameter.

Call GET /export with a metric id, a start and end timestamp, and format set to csv, then save the file for the weekly report

Key Endpoints

19 endpoints — the cryptokeyhole api returns on-chain and market analytics for bitcoin, ethereum, and other coins, computed from cryptokeyhole's own nodes and collectors.

METHOD

PATH

DESCRIPTION

GET

/catalog

Metric catalogue for an asset

GET

/series

Chart series history

GET

/fear-and-greed

Fear & Greed Index

GET

/perps

Perpetual futures screener

GET

/carry

Funding carry scanner

GET

/moves/latest

Latest sharp price move, explained

GET

/export

Chart download (Plus and higher)

GET

/catalog

Metric catalogue for an asset

GET

/series

Chart series history

GET

/fear-and-greed

Fear & Greed Index

GET

/perps

Perpetual futures screener

GET

/carry

Funding carry scanner

GET

/moves/latest

Latest sharp price move, explained

GET

/export

Chart download (Plus and higher)

Why Jentic?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring CryptoKeyhole by hand means tracking which operations are open and which need the bearer key, and which plan tier gates hourly data, downloads, and contract history. Through Jentic you install once, import CryptoKeyhole from the API Directory, store the key once, and your agent calls it.

Permission scoping

CryptoKeyhole passes the asset, metric, contract, and pair as query parameters rather than path segments, so rules bound which operations your agent may call, not which coin. You choose the operations it may call, so paid ones like chart downloads or contract history are not included unless you add them.

Credential isolation

Your CryptoKeyhole key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'crypto fear and greed index' or 'funding carry pairs', and Jentic returns the matching CryptoKeyhole operation with its input schema so the agent sets the right metric, asset, and interval without reading the reference docs.

FAQs

Specific to using CryptoKeyhole API through Jentic.

What authentication does the CryptoKeyhole API use?

Per its OpenAPI spec, the CryptoKeyhole API uses HTTP bearer authentication with a read-only key from your account page, sent as Authorization: Bearer <key>. Many operations, such as status, assets, the Fear & Greed Index, and daily closes, are open without a key, while chart downloads, carry pair detail, and contract history declare the bearer key. Through Jentic the key is stored by your own instance and attached at call time.

Can I get a chart's full history with the CryptoKeyhole API?

Yes. GET /series takes a required metric parameter plus interval, start, end, limit, and sma options and returns exact decimal values, each with a finality of final, provisional, or partial. Free charts are available without a key at daily, weekly, monthly, and yearly resolution with full history; finer intervals depend on your plan.

What are the rate limits for the CryptoKeyhole API?

The OpenAPI spec description states that each client, identified by key or address, may make 240 requests a minute, and that Plus and Pro plans carry their own call allowances. Check the CryptoKeyhole account page for the allowance on your plan.

Is there a CryptoKeyhole MCP server?

The spec lists a POST /mcp operation that CryptoKeyhole describes as an MCP server for AI assistants. You do not need it to give your agent CryptoKeyhole: Jentic connects the API directly from the API Directory, so your agent discovers the chart, sentiment, and futures operations on demand without loading another server's tool definitions into its context.

How do I read the Fear & Greed Index through Jentic?

Search Jentic for 'crypto fear and greed index', load GET /fear-and-greed, and pass the coin parameter for one coin, or call GET /fear-and-greed/coins for every coin at once. Neither needs a key. To run it on your own infrastructure, install Jentic One from its GitHub repo.

Can I limit what my agent is allowed to do with the CryptoKeyhole API?

Yes. Write a rule that allows only GET /fear-and-greed and GET /moves/latest, and a briefing agent can read sentiment and the latest explained move while the paid export and contract history operations stay out of reach, and every call it makes is logged.

CryptoKeyhole API

AI ReadinessAI-Aware (B)63/100

See full scorecard

Official vendor OpenAPI document · agent-readyAnalyticsBusiness Intelligencebearer19 EndpointsREST

For Agents

Pull crypto on-chain metric series, the Fear & Greed Index, perpetual futures screens, funding carry pairs, and explained price moves for Bitcoin, Ethereum, and other coins.

Use for: Get the current Fear & Greed Index for Bitcoin, List all metrics available for Ethereum, Retrieve the daily history of an on-chain metric since 2020, Find all sharp price moves of a coin in the last month

Not supported: Does not place trades, hold balances, or provide exchange order books. Use for reading crypto on-chain metrics, sentiment, and futures screens only.

The CryptoKeyhole API returns on-chain and market analytics for Bitcoin, Ethereum, and other coins, computed from CryptoKeyhole's own nodes and collectors. It serves the full history of any chart in the metric list as exact decimal values, along with the Fear & Greed Index, a 0 to 100 gauge of how stretched open interest and funding are, a perpetual futures screener, a funding carry scanner, and an archive of sharp price moves with explanations. Free charts are readable without a key at daily and coarser resolution, while a bearer key from a Plus or higher plan unlocks hourly or ten-minute data, CSV downloads, and contract-level futures history.

Jentic One on Github View OpenAPI Document

Show dimension breakdown

Foundational Compliance

Base layer of spec validity and structural soundness.

Grade: A-Signals: 4

98%

Lint Results

Aggregated quality score from linter diagnostics, weighted by severity.

100%

Resolution Completeness

Percentage of `$ref` references that resolve successfully.

100%

Specification Validity

Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).

Structural Integrity

Structural correctness score based on schema issues using logarithmic dampening.

Developer Experience & Jentic Compatibility

Clarity, completeness, and ingestion readiness for developers and tooling.

Grade: BSignals: 4

Example Density

How richly the API is illustrated with examples.

100%

Example Validity

Percentage of examples that conform to their schemas.

46%

Response Coverage

Percentage of operations with complete response definitions (success, client error, server error).

100%

Tooling Readiness

Health of API ingestion, bundling, and resolution within Jentic pipelines.

AI-Readiness & Agent Experience

Semantic breadth, depth, and agent comprehension for AI systems.

Grade: D+Signals: 4

44%

Description Coverage

Coverage of descriptions across API elements.

Error Standardization

Coverage of RFC 9457 Problem Details for error responses.

95%

OperationId Quality

Coverage, uniqueness, and casing consistency of operationIds for AI inference.

50%

Summary Coverage

Coverage of summaries across operations/tags/info.

Agent Usability

Functional utility, complexity comfort, and AI orchestration readiness.

Grade: A+Signals: 1

94%

Complexity Comfort

Agent comfort level based on API operational and structural complexity.

Security

Trust, risk posture, and security compliance.

Grade: B-Signals: 1

60%

Authentication Strength

Average quality of security schemes based on authentication method strength (weakest link for OAuth2).

AI Discoverability

Findability, semantic richness, and reasoning readiness.

Grade: B-Signals: 1

62%

Descriptive Richness

Clarity and depth of descriptions across API elements.

Connect the CryptoKeyhole API to your agent

Capabilities

Start building with CryptoKeyhole API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs

CryptoKeyhole API

Jentic AI Readiness Score

CryptoKeyhole API

Foundational Compliance

Lint Results

Resolution Completeness

Specification Validity

Structural Integrity

Developer Experience & Jentic Compatibility

Example Density

Example Validity

Response Coverage

Tooling Readiness

AI-Readiness & Agent Experience

Description Coverage

Error Standardization

OperationId Quality

Summary Coverage

Agent Usability

Complexity Comfort

Security

Authentication Strength

AI Discoverability

Descriptive Richness