SUTRA (Two AI)

SUTRA is a family of multilingual large language models from Two AI (Numeric), fluent in 50+ languages including Hindi, Gujarati, Tamil, Bengali, Korean, Arabic, and Japanese. The SUTRA API is OpenAI-compatible and serves the SUTRA-V2 instruction/conversation model and the SUTRA-R0 reasoning model through a single Bearer-authenticated REST interface.

SUTRA (Two AI) publishes 2 API contracts indexed on the APIs.io network: Models API and Chat Completions API. Tagged areas include Artificial Intelligence, LLM, Multilingual, Inference, and Reasoning.

The SUTRA (Two AI) catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

SUTRA (Two AI)’s developer surface includes engineering blog, authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.8/100 thin ▬ flat Agent 23/100 agent aware Front door AI 6/6 dominant Heartbeat 11/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 published contract

Artificial Intelligence LLM Multilingual Inference Reasoning Real-Time Foundation Models

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 29.8/100 · thin

Contract Quality 10.6 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 1.2 / 15

Operational Transparency 1.0 / 10

Contract Governance 1.0 / 9

Discoverability 5.0 / 8

Regulatory Posture 1.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 32.1 — up to +13.6 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/sutra-ai/apis.yml: open an issue on github.com/api-evangelist/sutra-ai to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

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.

The OpenAI Interface reaches core

declared — publishes a spec that declares them

2 core of 338 operations graded · api-commons/models

OpenAPI

measured — observed by APIs.io (published)

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

SUTRA (Two AI) Models API

List available SUTRA models.

SUTRA (Two AI) Chat Completions API

OpenAI-compatible chat completions across SUTRA models.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

SUTRA Chat API

OPEN COLLECTION

SUTRA Chat Models API

OPEN COLLECTION

SUTRA API

OPEN COLLECTION

SUTRA (Two AI) API pricing

Not yet checked against SUTRA (Two AI)'s own pricing page. Compiled by API Evangelist on 2026-06-21 from www.two.ai/sutra; confirm before you rely on a figure.

Plan	Price
Pay-as-you-go (Usage) usage	—
SUTRA for Startups usage	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Requests Per Minute (RPM): see provider (not published) requests
Tokens Per Minute (TPM): see provider (not published) tokens
Concurrent Requests: see provider (not published) requests

Compiled by API Evangelist, not yet checked against SUTRA (Two AI)'s documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Sutra Ai Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Sutra Ai Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

SUTRA (Two AI)

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Sutra Ai Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

SUTRA Chat Completions Streaming (HTTP + SSE)

AsyncAPI 2.6 description of SUTRA's **chat completion streaming** surface. Two AI (Numeric) does not publish a WebSocket API for SUTRA. The only asynchronous / event-style trans...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SUTRA (Two AI) — asyncapi rules

5 rules · 1 errors 4 warnings

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Sutra Ai Authentication

http · 1 scheme

SECURITY

Sutra Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Sutra Ai Agentic Access

2 operations · 1 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Source (apis.yml)

aid: sutra-ai
url: https://raw.githubusercontent.com/api-evangelist/sutra-ai/refs/heads/main/apis.yml
name: SUTRA (Two AI)
kind: company
description: SUTRA is a family of multilingual large language models from Two AI (Numeric), fluent in 50+ languages including
  Hindi, Gujarati, Tamil, Bengali, Korean, Arabic, and Japanese. The SUTRA API is OpenAI-compatible and serves the SUTRA-V2
  instruction/conversation model and the SUTRA-R0 reasoning model through a single Bearer-authenticated REST interface.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sutra-ai.png
tags:
- Artificial Intelligence
- LLM
- Multilingual
- Inference
- Reasoning
- Real-Time
- Foundation Models
tags_raw:
- AI
- LLM
- Multilingual
- Inference
- Reasoning
- Real-Time
- Foundation Models
created: '2026-06-21'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: sutra-ai:sutra-ai-models-api
  name: SUTRA (Two AI) Models API
  description: List available SUTRA models.
  humanURL: https://docs.two.ai/docs/getting-started
  baseURL: https://api.two.ai/v2
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/sutra-ai-models-api-openapi.yml
  - type: Documentation
    url: https://docs.two.ai/docs/getting-started
  - type: APIReference
    url: https://docs.two.ai/docs/models/sutra-v2-guide
  - type: AsyncAPI
    url: asyncapi/sutra-ai-asyncapi.yml
  - type: PostmanCollection
    url: collections/sutra-ai.postman_collection.json
  - type: OpenCollection
    url: collections/sutra-ai.opencollection.json
  - type: Documentation
    url: https://docs.two.ai/docs/models/sutra-r0-guide
- aid: sutra-ai:sutra-ai-chat-completions-api
  name: SUTRA (Two AI) Chat Completions API
  description: OpenAI-compatible chat completions across SUTRA models.
  humanURL: https://docs.two.ai/docs/getting-started
  baseURL: https://api.two.ai/v2
  tags:
  - Chat Completions
  properties:
  - type: OpenAPI
    url: openapi/sutra-ai-chat-completions-api-openapi.yml
  - type: Documentation
    url: https://docs.two.ai/docs/getting-started
  - type: APIReference
    url: https://docs.two.ai/docs/models/sutra-v2-guide
  - type: AsyncAPI
    url: asyncapi/sutra-ai-asyncapi.yml
  - type: PostmanCollection
    url: collections/sutra-ai.postman_collection.json
  - type: OpenCollection
    url: collections/sutra-ai.opencollection.json
  - type: Documentation
    url: https://docs.two.ai/docs/models/sutra-r0-guide
common:
- url: https://www.two.ai/blog
  type: Blog
- type: AgenticAccess
  url: agentic-access/sutra-ai-agentic-access.yml
- type: DomainSecurity
  url: security/sutra-ai-domain-security.yml
- type: Authentication
  url: authentication/sutra-ai-authentication.yml
- type: GitHubOrganization
  url: https://github.com/sutra-dev
- type: LinkedIn
  url: https://www.linkedin.com/company/two-ai
- type: Website
  url: https://www.two.ai
- type: Documentation
  url: https://docs.two.ai/docs
- type: Plans
  url: plans/sutra-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/sutra-ai-rate-limits.yml
- type: FinOps
  url: finops/sutra-ai-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

SUTRA (Two AI) API — frequently asked questions

Does SUTRA (Two AI) have an API?

Yes. APIs.io lists 2 APIs from SUTRA (Two AI), including SUTRA (Two AI) Models API and SUTRA (Two AI) Chat Completions API.

Is there an OpenAPI specification for the SUTRA (Two AI) API?

Yes. APIs.io indexes 2 OpenAPI specifications for SUTRA (Two AI), each linked for download from this page.

How do I authenticate with the SUTRA (Two AI) API?

SUTRA (Two AI) uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Sutra Ai Authentication.

How much does the SUTRA (Two AI) API cost?

APIs.io lists 3 pricing plans for SUTRA (Two AI), with each plan's price, limits and inclusions under Pricing on this page.

Is the SUTRA (Two AI) API ready for AI agents?

SUTRA (Two AI) has a Kin Score of 29.8 out of 100 (thin) and an Agent Readiness score of 23.2 (agent-aware), scored by API Evangelist on 2026-11-06.

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