Install Jentic One Beta

Connect the GrantOne Accounting API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the GrantOne Accounting 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%2Fgrant.nu%2Fgrant" | 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%2Fgrant.nu%2Fgrant" | 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 GrantOne Accounting API.

Authenticate and obtain a session token for integration access

Fetch up to 50 postings or journal entries in a batch for export

Mark a batch of exported postings as exported

Reset a previously exported batch while testing

Use Cases

Patterns agents use GrantOne Accounting API for, with concrete tasks.

GET STARTED

Start building with GrantOne Accounting API

Explore with Jentic One

View OpenAPI Document

★ Agent-run accounting export

An AI agent can move accounting data out of GrantOne by authenticating, fetching a batch of postings, transferring them to a target ledger, and marking the batch as exported so the same entries are not pulled twice. The batch-of-50 limit keeps each transfer bounded. Connected through Jentic, the agent only calls the fetch and mark-exported operations.

Authenticate, fetch a batch of up to 50 postings, and mark the batch as exported after transferring them

Incremental ledger sync

Finance teams syncing GrantOne to a data warehouse or another ledger need an idempotent pull. GrantOne hands out postings in batches and tracks which batches are marked exported, so a scheduled job can pull only what is new each run. The export marker prevents double-counting entries downstream.

Fetch the next unexported batch of postings and mark it exported once the downstream load succeeds

Integration testing with reset

While building an integration, developers need to re-run the same export without manually unflagging records. GrantOne's reset operation, available only during testing, returns a previously exported batch to its unexported state so the pull can be repeated. This keeps a test harness repeatable before go-live.

Reset a batch of postings previously marked exported so an integration test can re-run the export

Key Endpoints

4 endpoints — the grantone accounting api fetches batches of accounting postings and journal entries for export to another system and marks each batch as exported once it is pulled.

METHOD

PATH

DESCRIPTION

POST

/api/integration/authenticate

Obtain a session token

GET

/api/integration/postings/batch

Fetch up to 50 postings for exporting

PATCH

/api/integration/postings/batch/{id}/export

Mark a batch as exported

PATCH

/api/integration/postings/batch/{id}/reset

Reset a previously exported batch (testing only)

POST

/api/integration/authenticate

Obtain a session token

GET

/api/integration/postings/batch

Fetch up to 50 postings for exporting

PATCH

/api/integration/postings/batch/{id}/export

Mark a batch as exported

PATCH

/api/integration/postings/batch/{id}/reset

Reset a previously exported batch (testing only)

Why Jentic?

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

Setup

Wiring GrantOne by hand means obtaining a Bearer JWT session token, batching postings in groups of 50, and tracking which batches are marked exported yourself. Through Jentic you install once, import GrantOne from the API Directory, store the token once, and your agent calls it.

Permission scoping

GrantOne puts the batch id in the URL path (/api/integration/postings/batch/{id}/export), so a rule can bound your agent to the fetch and export operations and leave the reset operation out. You choose the operations it may call, so the testing-only reset is not included unless you add it.

Credential isolation

Your GrantOne session token 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 'fetch accounting postings' or 'mark a batch exported', and Jentic returns the matching GrantOne operation with its input schema so the agent calls the right endpoint without reading the reference docs.

FAQs

Specific to using GrantOne Accounting API through Jentic.

What authentication does the GrantOne Accounting API use?

GrantOne authenticates with a Bearer JWT session token, obtained from its authenticate operation and sent in the Authorization header, per its OpenAPI spec. Through Jentic the token is stored encrypted by your own Jentic One instance and injected at execution time, so it never enters the agent's context.

Can I export journal entries with the GrantOne Accounting API?

Yes. The postings-batch operation returns up to 50 postings or journal entries at a time for export, and the export operation marks a batch as exported so the same entries are not pulled again. During testing, a reset operation returns a batch to its unexported state.

What are the rate limits for the GrantOne Accounting API?

The OpenAPI spec does not specify rate limits, and postings are handed out in batches of up to 50 rather than by a per-second quota. Check https://grant.nu for current integration limits.

How do I pull and export postings with the GrantOne Accounting API through Jentic?

Search Jentic for 'fetch accounting postings' and it returns the GrantOne postings-batch operation with its input schema, then search 'mark postings exported' for the export operation. Install Jentic One with `curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh`, import GrantOne from the API Directory, and store your token once. 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 GrantOne?

Yes. Write a rule that allows only the authenticate, fetch-postings, and mark-exported operations, so the agent can run the export but cannot reset exported batches, and every call it makes is logged.

Is there a GrantOne MCP server?

You don't need an MCP server to connect your agent to GrantOne. Jentic connects it directly from the API Directory: import it, store your credential once, and your agent discovers and calls the operations it needs on demand.

Grant Nu GrantOne Accounting API

AI ReadinessFoundational (D)44/100

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Community OpenAPI document · agent-readyFinanceAccountingbearer4 EndpointsREST

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For Agents

Lets an AI agent pull accounting postings and journal entries from GrantOne in batches and mark them as exported after transfer.

Use for: Get a batch of accounting postings ready for export, Retrieve up to 50 journal entries from GrantOne, I want to mark a batch of postings as exported, Reset a batch of postings during integration testing

Not supported: Does not handle invoicing, payments, or payroll. Use for exporting accounting postings and journal entries only.

The GrantOne Accounting API fetches batches of accounting postings and journal entries for export to another system and marks each batch as exported once it is pulled. It authenticates with a session token and works in batches of up to 50 postings at a time. A reset operation, available only while testing, returns a batch to its unexported state so an integration can be re-run.

Jentic One on Github View OpenAPI Document

Show dimension breakdown

Foundational Compliance

Base layer of spec validity and structural soundness.

Grade: A-Signals: 4

94%

Lint Results

Aggregated quality score from linter diagnostics, weighted by severity.

100%

Resolution Completeness

Percentage of `$ref` references that resolve successfully.

Specification Validity

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

100%

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: FSignals: 4

Example Density

How richly the API is illustrated with examples.

Example Validity

Percentage of examples that conform to their schemas.

50%

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: FSignals: 4

41%

Description Coverage

Coverage of descriptions across API elements.

Error Standardization

Coverage of RFC 9457 Problem Details for error responses.

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: A-Signals: 1

75%

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 GrantOne Accounting API to your agent

Capabilities

Use Cases

Start building with GrantOne Accounting API

Key Endpoints

Why Jentic?

Related APIs

FAQs

Grant Nu GrantOne Accounting API

Jentic AI Readiness Score

GrantOne Accounting 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