Symbl.ai

Symbl.ai provides AI-powered conversation intelligence APIs that enable developers to add real-time speech-to-text, topic detection, sentiment analysis, and actionable insights to voice, video, and messaging applications. Their platform processes live and recorded audio, delivering structured data such as speaker identification, intent extraction, and summary generation, helping businesses automate note-taking, improve customer experiences, and build intelligent communication tools. The company is backed by Techstars and positioned in the conversational AI market.

Symbl.ai is listed with 1 API on the APIs.io network. Tagged areas include Company, AI, Conversation, Speech, and NLP.

🌐 Visit website 📡 Profile data on GitHub

6.9/100 minimal Agent 6/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

CompanyAIConversationSpeechNLPReal-timeCommunication

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 6.9/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.1 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 6.4 — up to +18.7 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/rammer-ai/apis.yml: open an issue on github.com/api-evangelist/rammer-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 →

APIs 1

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

Symbl Conversation API

Symbl.ai provides AI‑powered conversation intelligence APIs for real‑time speech‑to‑text, topic detection, sentiment analysis, and actionable insights.

Pricing Plans 1

Published pricing tiers and plan structures.

Rammer Ai Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rammer Ai Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Rammer Ai Authentication

0 schemes

SECURITY

Rammer Ai Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Rammer Ai Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: rammer-ai
name: Symbl.ai
description: Symbl.ai provides AI-powered conversation intelligence APIs that enable developers to add real-time speech-to-text,
  topic detection, sentiment analysis, and actionable insights to voice, video, and messaging applications. Their platform
  processes live and recorded audio, delivering structured data such as speaker identification, intent extraction, and summary
  generation, helping businesses automate note-taking, improve customer experiences, and build intelligent communication tools.
  The company is backed by Techstars and positioned in the conversational AI market.
url: https://artifacts.apis.io/rammer-ai/apis.yml
image: https://symbl.ai/assets/logo.png
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- Company
- AI
- Conversation
- Speech
- NLP
- Real-time
- Communication
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgentSkill
  url: skills/_index.yml
- type: Hosts
  url: hosts/rammer-ai-hosts.yml
- type: Vendors
  url: vendors/rammer-ai-vendors.yml
- type: DomainSecurity
  url: security/rammer-ai-domain-security.yml
- type: Website
  url: https://rammer.ai/
apis:
- name: Symbl Conversation API
  description: Symbl.ai provides AI‑powered conversation intelligence APIs for real‑time speech‑to‑text, topic detection,
    sentiment analysis, and actionable insights.
  humanURL: https://symbl.ai/
  aid: rammer-ai:symbl-conversation-api
x-backed-by:
- techstars
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: All attempts to fetch documentation and contract files returned HTTP 500, indicating the site is protected and no
    machine‑readable spec is available.
  evidence:
  - url: https://symbl.ai/
    status: 500
  checked: '2026-10-29'
x-enrichment:
  date: '2026-10-29'
  status: nochange
  artifacts_added: 0
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Symbl.ai API — frequently asked questions

Does Symbl.ai have an API?

Yes. APIs.io lists 1 API from Symbl.ai, including Symbl Conversation API.

How do I authenticate with the Symbl.ai API?

Symbl.ai documents its authentication (0 schemes). The details are profiled on APIs.io as Rammer Ai Authentication.

Is the Symbl.ai API ready for AI agents?

Symbl.ai has a Kin Score of 6.9 out of 100 (minimal) and an Agent Readiness score of 5.8 (agent-aware), scored by API Evangelist on 2026-10-31.

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