# Intrinio vs Twelve Data

> Twelve Data scores 70 (BB) to Intrinio's 54.2 (C) for market prices. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/intrinio-vs-twelve-data
- Markdown: https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.md (~4,350 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT <slug>.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-04

Twelve Data scores 70 (BB) on agent readiness against Intrinio's 54.2 (C), and leads in 6 of 7 scored categories. Both do market prices.

- Intrinio: grade C, 54.2/100, rank #813 of 1349. Markdown https://www.anchorterminal.com/tools/intrinio.md · JSON https://www.anchorterminal.com/api/v1/tools/intrinio.json
- Twelve Data: grade BB, 70/100, rank #197 of 1349. Markdown https://www.anchorterminal.com/tools/twelve-data.md · JSON https://www.anchorterminal.com/api/v1/tools/twelve-data.json
- Best financial market data APIs for AI agents: https://www.anchorterminal.com/best/market-data/index.md
- All 55 markets comparisons: https://www.anchorterminal.com/compare/market-data/index.md

## Which one, for what

### Intrinio (C)

Good for: An agent doing US equity, options and fundamentals research on a paid plan that wants one vendor for prices, filings, estimates and an OAuth MCP server.

Watch for: The API key is documented as `api_key` in the query string as the first option, with no scopes, rotation or expiry found

### Twelve Data (BB)

Good for: Agents that need prices and time series across many exchanges and asset classes with one contract, CSV output, and a documented error table.

Ahead on:
- Schema & documentation, 83 against 43
- Agent ergonomics, 84 against 70
- Security & auth, 54 against 35
- Payments & pricing, 30 against 20
- Maintenance & community, 82 against 70
- Transparency & trust, 67 against 51

Also in its favour:
- Agent-ready, a grade of BB or better
- Runs on your own machine
- Free to start without a card

Watch for: The REST docs and OpenAPI accept the key as `?apikey=` in the query string alongside the header


## Why the edge

### Schema & documentation: Twelve Data +40

- Intrinio (43): No OpenAPI document was found. The SDKs are generated from a spec that declares API version 2.135.4, but the spec itself isn't published, and the MCP server's tool definitions aren't in any public source (5 of 25). docs.intrinio.com/llms.txt and intrinio.com/llms.txt return 404, and there are no Markdown pages (0 of 10). Each endpoint page states what it returns with its parameters, with little on when not to use a call (12 of 20). Parameters are typed, with required ones marked and allowed values in prose (9 of 15). Code samples in six languages on every endpoint, and a response codes page that lists codes without a body format (10 of 15). The v2 path is versioned, but the version history lists 2.0.0 to 2.6.2 with no dates and is out of step with the SDK's API version (7 of 15). Total 43.
- Twelve Data (83): A public OpenAPI 3.1 document covers 187 operations, every one with a description and 200, 400, 401, 403, 404, 414, 429 and 500 responses, and the MCP tools in the source carry typed inputs and annotations (25). llms.txt on the site and in the docs link Markdown pages per section, pricing.md and auth.md (10). Descriptions state purpose, plan requirement and credit cost, with little on when not to use an endpoint (16 of 20). Required parameters are marked and the Markdown lists interval, adjust and type values, but none of the 3,091 parameters in the spec declares an enum (9 of 15). Examples with a demo key on every endpoint and an error table with codes and meanings (13 of 15). No version in the path, a spec at version 0.0.1, and monthly dated product updates on the news page rather than an API changelog (10 of 15). 25 + 10 + 16 + 9 + 13 + 10 = 83.

### Security & auth: Twelve Data +19

- Intrinio (35): One account key with no scopes, documented first as `api_key` in the query string and second as a Bearer header, with no rotation or expiry found. Public keys for browsers are restricted to listed domains. The MCP server uses OAuth 2 with PKCE S256, dynamic client registration, a revocation endpoint and one scope (20 less 10 for the query string, so 10). Every endpoint is a read and the MCP page says the server cannot trade or change the account (15 of 20). News bodies and filing text are third-party content, with no guidance on treating them as untrusted (5 of 15). The account page shows limits and usage per subscription; no per-call log was found (3 of 15). security.txt returns 404, and no disclosure policy, bug bounty, SOC 2 or ISO 27001 was found. The privacy policy says the company processes data under the GDPR (2 of 20). Total 35.
- Twelve Data (54): The REST key is a plain per-account key with no scopes, accepted as a header or as `?apikey=` (20 less 10 for the query string). The hosted MCP server refuses keys and uses OAuth 2.1 with PKCE, a resource indicator, refresh tokens, revocation and one scope, which lifts the credential model for that surface (18 of 30). Every operation is a read (15 of 20). Company news is third-party text and no guidance was found (5 of 15). An `/api_usage` endpoint and dashboard usage give the key holder a view of consumption, not a per-call log (6 of 15). A trust centre on SafeBase lists SOC 2, GDPR and CCPA and ten policies; no security.txt, disclosure process or bug bounty was found (10 of 20). 18 + 15 + 5 + 6 + 10 = 54.

### Transparency & trust: Twelve Data +16

- Intrinio (51): A closed service under terms effective 3 September 2026 that are clear on personal, internal and commercial use and name Intrinio, Inc. (15 of 30). The privacy policy is dated 30 June 2018, names no retention periods, subprocessors or DPA, and says only that connection details may be retained; the terms require deletion within 30 days of termination with an officer's certification (8 of 30). No deprecation policy, and the version history has no dates (3 of 20). Data is processed in the United States; no subprocessor list (5 of 20). Total 31.
- Twelve Data (67): A closed service under terms that name the entity, define internal use, business use and redistribution, and were last updated 1 January 2026; the MCP repository is open source but ships no licence file (15 of 30). The privacy policy of 22 September 2026 states retention periods and names its processors, the terms require data deletion within 30 days of termination, and no DPA is named (20 of 30). No deprecation policy or notice period; the terms allow changes and the monthly updates record them after the fact (3 of 20). Subprocessors are named on the privacy policy and the trust centre, with no data locations beyond transfer mechanisms (12 of 20). 15 + 20 + 3 + 12 = 50.

### Agent ergonomics: Twelve Data +14

- Intrinio (70): `page_size` from 100 up to 10,000 sizes a response, and the MCP server batches ticker lists, but there is no field selection (15 of 25). `next_page` tokens, date and symbol filters on the data endpoints (18 of 20). Response codes are documented, 403 for an unsubscribed feed and 429 with a limit explanation, with no error body format or error code reference (10 of 20). Every call is a read and the vendor says the MCP server writes nothing back, but no readOnlyHint or safe-retry guidance was found (12 of 20). Few required parameters, and official SDKs in Python, C#, Java, JavaScript, R and Ruby (15). Total 70.
- Twelve Data (84): The REST API is the surface graded. `outputsize` 1 to 5,000 with a default of 30, `format=CSV`, `dp`, date ranges and batch requests size responses, and the MCP server lists 27 tools (20 of 25). Date ranges, `outputsize` and exchange, country and type filters, with no cursor pagination (15 of 20). Error codes with meanings an agent can branch on, 403 for plan limits and 429 for credits (16 of 20). Every operation is a read, and the MCP source marks tools readOnlyHint (18 of 20). Few required parameters, a demo key, and official SDKs in Python, Node.js, Go, Java and R (15). 20 + 15 + 16 + 18 + 15 = 84.

### Maintenance & community: Twelve Data +12

- Intrinio (70): The six real-time websocket SDK repositories were pushed between 22 and 29 October 2026, and the MCP server is labelled New on the vendor's page (30). The last tagged release found is intrinio-sdk 7.2.0 on PyPI on 27 May 2026, following 7.0.0 on 2 March and 7.1.0 on 24 March; the October pushes have no tags or dated changelog entries, and the API version history carries no dates (10 of 20). Support is live chat through HubSpot, an AI chat and support@intrinio.com, with a status page; GitHub issue activity was not read (8 of 15). Official SDKs are current in six languages (15). The Python SDK is generated by swagger-codegen with CI not checked (7 of 10). Total 70.
- Twelve Data (82): Read as a closed service. The newest dated change is the product update of 12 October 2026, with the MCP repository changed on 1 October and the world-model dataset repository on 31 October (30). Monthly updates dated 12 August, 12 September and 12 October 2026 (20). A monthly changelog, a support portal, a sales contact and a Telegram channel; replies on the MCP repository's issues were not read (10 of 15). Six official SDKs and a CLI, twelvedata-python at v1.4.0 of 27 April 2026 (15). The MCP server pins its dependencies with reasons and ships tests; the Python SDK's changelog stops at version 0.1 (7 of 10). 30 + 20 + 10 + 15 + 7 = 82.

### Payments & pricing: Twelve Data +10

- Intrinio (20): No x402, MPP or L402 (0). Plan prices are public without a login, $150, $333 rising to $999, and $1,250 and up, with no per-call price (10). Both self-serve plans say a free trial is available, and the trial length and card requirement were not found on the pricing, plan or terms pages, since the plan pages are drawn by script (10 of 20). A person signs up in a browser; no key API was found (0). Total 20.
- Twelve Data (30): No x402, MPP or L402 (0). Plan prices are public without login in pricing.md and on the pricing page, sold by credits a minute per month rather than per call (10). A free Basic plan at 800 credits a day with no card (20). The key comes from a browser signup and no key API was found; MCP needs an OAuth login by a person (0). 0 + 10 + 20 + 0 = 30.

## Score by category

| Category | Weight | Intrinio | Twelve Data | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 83 | 83 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 43 | 83 | Twelve Data +40 |
| Agent ergonomics | 13% (16.2 this run) | 70 | 84 | Twelve Data +14 |
| Security & auth | 14% (17.5 this run) | 35 | 54 | Twelve Data +19 |
| Payments & pricing | 10% (12.5 this run) | 20 | 30 | Twelve Data +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 70 | 82 | Twelve Data +12 |
| Transparency & trust | 7% (8.8 this run) | 51 | 67 | Twelve Data +16 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **54.2 · C** | **70 · BB** | |

## Facts side by side

| Fact | Intrinio | Twelve Data |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Intrinio, Inc. | Twelve Data Pte. Ltd. |
| Hosted endpoint | `https://api-v2.intrinio.com` | `https://api.twelvedata.com` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio, websocket |
| Auth | API key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Tools exposed | none | 27 |
| Read-only variant documented | yes | yes |
| llms.txt | no | yes |
| Last release | 2026-05-27 | 2026-10-12 |
| Terms last updated | no date given | 2026-01-01 |
| Privacy policy last updated | no date given | 2026-09-22 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 76 stars | 791 stars |

## Verdicts

**Intrinio.** A read-only US equities, options and fundamentals API with a clean status history, SDKs in six languages, paging up to 10,000 records and an OAuth MCP server included in every plan. The REST key is documented in the query string, no OpenAPI document or llms.txt was found, the version history is undated, and plans start at $150 a month.

**Twelve Data.** A public OpenAPI 3.1 document with error responses on all 187 operations, Markdown docs and pricing for agents, a status page with two short incidents in 90 days, and an MCP server behind OAuth 2.1. The REST key still travels in the query string as a documented option, no enums are declared, and free and individual plans forbid company use.

## Before you call either

### Intrinio

1. Send the key as `Authorization: Bearer`, not `?api_key=`, so it stays out of logs
2. Expect 403 for a data feed the account isn't subscribed to, 429 with an explanation when a limit is hit, and 503 when a request passes 25 seconds; shrink the query rather than retry at once
3. Keep `page_size` at 100 or below unless the plan is paid, since larger pages are limited to one request a minute on free feeds
4. Confirm the plan before displaying or passing Intrinio data to anyone else; the Individual plan forbids it
5. The MCP server returns a message naming the product that unlocks data outside the plan; don't retry the same call

### Twelve Data

1. Send the key as `Authorization: apikey <key>`, not in the URL; the hosted MCP server takes OAuth only, so never paste a key into a connector's key field
2. Set `outputsize` (1 to 5,000, default 30) and `format=CSV` on time_series to keep responses small, and read `status` in the JSON body since errors come with HTTP codes and a `message`
3. Count credits, not calls; most endpoints cost one credit per symbol and the Basic plan allows 8 a minute and 800 a day, with 429 when exceeded
4. A 403 means the key's plan lacks the endpoint or symbol, not a bad key; check pricing.md before escalating
5. Use trial symbols from twelvedata.com/exchanges to test premium data on the free plan

## Questions

### Which is better for AI agents, Intrinio or Twelve Data?

Twelve Data scores 70 (BB) on agent readiness against Intrinio's 54.2 (C), and leads in 6 of 7 scored categories.

### Do Intrinio and Twelve Data need an API key?

Intrinio needs an API key. Twelve Data takes an API key or an OAuth sign-in.

### Can an agent call Intrinio and Twelve Data without installing anything?

Yes. Intrinio has a hosted endpoint at https://api-v2.intrinio.com and Twelve Data at https://api.twelvedata.com.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.json, and with the fewest tokens: https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "intrinio", "b": "twelve-data"}`. From a terminal: `anchor compare intrinio twelve-data`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/intrinio.json and https://www.anchorterminal.com/api/v1/tools/twelve-data.json

## Other comparisons with Intrinio or Twelve Data

- [Alpha Vantage vs Intrinio](https://www.anchorterminal.com/compare/alpha-vantage-vs-intrinio.md)
- [Alpha Vantage vs Twelve Data](https://www.anchorterminal.com/compare/alpha-vantage-vs-twelve-data.md)
- [Databento vs Intrinio](https://www.anchorterminal.com/compare/databento-vs-intrinio.md)
- [Databento vs Twelve Data](https://www.anchorterminal.com/compare/databento-vs-twelve-data.md)
- [Finnhub vs Intrinio](https://www.anchorterminal.com/compare/finnhub-vs-intrinio.md)
- [Finnhub vs Twelve Data](https://www.anchorterminal.com/compare/finnhub-vs-twelve-data.md)
- [Intrinio vs Massive (formerly Polygon.io)](https://www.anchorterminal.com/compare/intrinio-vs-massive.md)
- [Intrinio vs Tiingo](https://www.anchorterminal.com/compare/intrinio-vs-tiingo.md)
- [Massive (formerly Polygon.io) vs Twelve Data](https://www.anchorterminal.com/compare/massive-vs-twelve-data.md)
- [Tiingo vs Twelve Data](https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.md)
- [Financial Datasets vs Intrinio](https://www.anchorterminal.com/compare/financial-datasets-vs-intrinio.md)
- [Financial Datasets vs Twelve Data](https://www.anchorterminal.com/compare/financial-datasets-vs-twelve-data.md)
- [Financial Modeling Prep vs Intrinio](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio.md)
- [Financial Modeling Prep vs Twelve Data](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.md)
- [EODHD vs Intrinio](https://www.anchorterminal.com/compare/eodhd-vs-intrinio.md)
- [EODHD vs Twelve Data](https://www.anchorterminal.com/compare/eodhd-vs-twelve-data.md)
- [Benzinga vs Intrinio](https://www.anchorterminal.com/compare/benzinga-vs-intrinio.md)
- [Benzinga vs Twelve Data](https://www.anchorterminal.com/compare/benzinga-vs-twelve-data.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp