Natural AI
Natural (natural.com) is the agentic payments platform: one API for AI agents, apps, and businesses to send, receive, and manage money. Agents get FDIC-insured wallets, credit lines, and the ability to pay or request funds by email, phone, @handle, party, or agent ID, plus card issuing, merchant acceptance, and PCI-compliant voice payments. The REST API (api.natural.com, Bearer auth, JSON:API envelope) is complemented by first-party Python and TypeScript SDKs, a `natural` CLI, and a hosted Model Context Protocol server at mcp.natural.com exposing 24 intent-shaped tools with OAuth 2.1 + PKCE. Natural was surfaced as a portfolio company of Forerunner Ventures and enriched into the API Evangelist network.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Natural AI the way a machine reads it — 53 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Natural AI scores 64.0/100 (strong), with a separate agent-readiness read of 68/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Natural AI's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/natural-ai/"
title="Natural AI on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/natural-ai.svg"
alt="Natural AI Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/natural-ai/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/natural-ai/"
title="Natural AI on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/natural-ai/card.svg"
alt="Natural AI Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Natural AI
Each block below is one kind of artifact we hold for Natural AI. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 15
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Natural AI Agent Keys API
Agent key management
Natural AI Agents API
Agent management
Natural AI API Keys API
API key management
Natural AI Approvals API
Approval review
Natural AI Customers API
Customer management
Natural AI Events API
Webhook event log
Natural AI External Accounts API
Linked external bank accounts
Natural AI Invitations API
Party invitation management
Natural AI Parties API
Party and organization management
Natural AI PaymentRequests API
Payment request management
Natural AI Payments API
Payment management
Natural AI Transactions API
Transaction activity and history
Natural AI Transfers API
Deposits and withdrawals
Natural AI Wallets API
Wallet management
Natural AI Webhooks API
Webhook endpoint management
Scroll within the panel for all 15 ·
Postman Collections 15
A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.
Ready-to-run Postman collections for exercising this provider's APIs.
Natural Agent Keys API
POSTMANScroll within the panel for all 15 ·
Open Collections 16
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONNatural Agent Keys API
OPEN COLLECTIONNatural Agent Keys Agents API
OPEN COLLECTIONNatural Agent Keys API Keys API
OPEN COLLECTIONNatural Agent Keys Approvals API
OPEN COLLECTIONNatural Agent Keys Customers API
OPEN COLLECTIONNatural Agent Keys Events API
OPEN COLLECTIONNatural Agent Keys External Accounts API
OPEN COLLECTIONNatural Agent Keys Invitations API
OPEN COLLECTIONNatural Agent Keys Parties API
OPEN COLLECTIONNatural Agent Keys PaymentRequests API
OPEN COLLECTIONNatural Agent Keys Payments API
OPEN COLLECTIONNatural Agent Keys Transactions API
OPEN COLLECTIONNatural Agent Keys Transfers API
OPEN COLLECTIONNatural Agent Keys Wallets API
OPEN COLLECTIONNatural Agent Keys Webhooks API
OPEN COLLECTIONScroll within the panel for all 16 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
Natural AI MCP Server
MCP SERVERRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Natural Ai Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Natural Ai Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Natural AI — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/natural-ai · machine-readable index on apis.io
This is an independent, third-party profile of Natural AI, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.