# Financial Modeling Prep vs Intrinio

> Intrinio scores 54.2 (C) to Financial Modeling Prep's 48.7 (D) for market fundamentals. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio
- Markdown: https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio.md (~4,400 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

Intrinio scores 54.2 (C) on agent readiness against Financial Modeling Prep's 48.7 (D), and leads in 4 of 7 scored categories. Financial Modeling Prep leads on schema & documentation, payments & pricing and transparency & trust. Both do market fundamentals.

- Financial Modeling Prep: grade D, 48.7/100, rank #1022 of 1349. Markdown https://www.anchorterminal.com/tools/financial-modeling-prep.md · JSON https://www.anchorterminal.com/api/v1/tools/financial-modeling-prep.json
- Intrinio: grade C, 54.2/100, rank #812 of 1349. Markdown https://www.anchorterminal.com/tools/intrinio.md · JSON https://www.anchorterminal.com/api/v1/tools/intrinio.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

### Financial Modeling Prep (D)

Good for: Agents doing company research on statements, ratios, DCF, filings, transcripts and calendars with one key, and US coverage on cheap plans.

Ahead on:
- Schema & documentation, 61 against 43
- Payments & pricing, 30 against 20
- Transparency & trust, 57 against 51

Also in its favour:
- Free to start without a card

Watch for: The documented MCP connection URL puts the API key in the query string, and the REST docs accept `?apikey=` too

### 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.

Ahead on:
- Reliability, 83 against 50
- Agent ergonomics, 70 against 59
- Security & auth, 35 against 30
- Maintenance & community, 70 against 60

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


## Why the edge

### Reliability: Intrinio +33

- Financial Modeling Prep (50): Read with the hosted lines. A public status page at status.financialmodelingprep.com is linked from every page (20), but its figures load by script and our reader got an error, so no incident history could be read (5). Limits are published with numbers, 250 calls a day on Basic and 300, 750 and 3,000 calls a minute on paid plans, with bandwidth caps per plan (15). No 429 behaviour, Retry-After or backoff guidance was found in the docs, api-docs.md or FAQs (0). No SLA found; the terms let FMP change limits without notice (0). The stable API is generally available (10). 20 + 5 + 15 + 0 + 0 + 10 = 50.
- Intrinio (83): Graded as a hosted service. Atlassian Statuspage at status.intrinio.com with APIv2 and APIv1 components (20). The incident feed's newest entry is a delayed SIP feed for CTA on 24 June 2026, so the 90 days to 3 November are clean (30). Limits are published in part. Pages above 100 records and bulk requests are 1 a minute on free feeds and 1 a second on paid ones, free feeds are throttled at 100 requests a second, and the daily and per-minute caps for a plan are shown only on the account page (8 of 15). A 429 carries an explanation of the limit and a 503 marks throttling or the 25-second timeout, with no Retry-After or backoff guidance (5 of 15). The Enterprise plan lists an SLA (10). The REST API is generally available (10). Total 83.

### Schema & documentation: Financial Modeling Prep +18

- Financial Modeling Prep (61): No OpenAPI document was found. The MCP page says the server supplies strict parameter definitions, but the tool list needs a key and was not read (5 of 25). llms.txt links api-docs.md and pricing.md, Markdown written for agents (10). Each of the 199 endpoints in api-docs.md has a purpose paragraph and a plan marker in pricing.md, with little on when not to use it (13 of 20). Parameters are tabled with type, example and a required star, but allowed values sit in prose and no enums are given (8 of 15). Every endpoint has an example request and response; no error responses are documented anywhere we read (10 of 15). A /stable path, legacy /v3 and /v4 marked discontinued, and a changelog dated by day through 2 November 2026 (15). 5 + 10 + 13 + 8 + 10 + 15 = 61.
- 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.

### Agent ergonomics: Intrinio +11

- Financial Modeling Prep (59): The REST API is the surface graded. `limit` and `page` on list endpoints, `from` and `to` on series, and batch quote endpoints size responses, with no field selection (15 of 25). Page and limit parameters on lists and date filters on series, no cursor (15 of 20). A missing key returned 401 with an `Error Message` text field in our one test call, and no error reference exists (5 of 20). Every call is a GET read; the MCP server's annotations were not read (16 of 20). Few required parameters and sensible defaults, but no official SDK in any language (8 of 15). 15 + 15 + 5 + 16 + 8 = 59.
- 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.

### Payments & pricing: Financial Modeling Prep +10

- Financial Modeling Prep (30): No x402, MPP or L402 (0). Four personal plans priced per month by calls a minute, public without login, with per-endpoint plan limits in pricing.md; commercial prices are by agreement (10). A free Basic plan at 250 calls a day with no card stated (20). The key comes from a browser signup and no key API was found (0). 0 + 10 + 20 + 0 = 30.
- 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.

### Maintenance & community: Intrinio +10

- Financial Modeling Prep (60): Read as a closed service. The changelog's newest entry is 2 November 2026 (30). Entries dated 6, 8, 12, 28 and 29 October and 2 November 2026, more than three in 90 days (20). A public changelog, a help centre, FAQs and a support address, with issues reported through a site chatbot per the FAQ (10 of 15). No official SDK; the FAQ points at third-party packages (0 of 15). No package to assess, and nothing else to show for CI or dependency health (0 of 10). 30 + 20 + 10 + 0 + 0 = 60.
- 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.

### Transparency & trust: Financial Modeling Prep +6

- Financial Modeling Prep (57): A closed service under terms that are clear on personal and commercial use and on display licensing, last updated 1 August 2023, but that name no legal entity, address or governing law (12 of 30). The privacy policy is undated, keeps data for as long as necessary with no periods, says no third parties receive data while naming Google AdSense and Analytics, and no DPA was found (8 of 30). The docs keep a Legacy section and api-docs.md says /v3 and /v4 are discontinued, with no notice period stated; behaviour changes such as the Economics Indicators default window appear in the dated changelog (8 of 20). Google services are the only processors named and no data location is given (5 of 20). 12 + 8 + 8 + 5 = 33.
- 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.

## Score by category

| Category | Weight | Financial Modeling Prep | Intrinio | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 50 | 83 | Intrinio +33 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 61 | 43 | Financial Modeling Prep +18 |
| Agent ergonomics | 13% (16.2 this run) | 59 | 70 | Intrinio +11 |
| Security & auth | 14% (17.5 this run) | 30 | 35 | Intrinio +5 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | Financial Modeling Prep +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 60 | 70 | Intrinio +10 |
| Transparency & trust | 7% (8.8 this run) | 57 | 51 | Financial Modeling Prep +6 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **48.7 · D** | **54.2 · C** | |

## Facts side by side

| Fact | Financial Modeling Prep | Intrinio |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Financial Modeling Prep | Intrinio, Inc. |
| Hosted endpoint | `https://financialmodelingprep.com/stable` | `https://api-v2.intrinio.com` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Read-only variant documented | no | yes |
| llms.txt | yes | no |
| Last release | 2026-11-02 | 2026-05-27 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | none | 76 stars |

## Verdicts

**Financial Modeling Prep.** About 199 stable REST endpoints with Markdown docs for agents, a dated changelog and a free key at 250 calls a day. The one key travels in the query string on the documented MCP address, error responses and 429 handling are undocumented, the status history could not be read, and personal plans forbid any company use.

**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.

## Before you call either

### Financial Modeling Prep

1. Send the key as an `apikey` header, not in the URL, and treat the MCP `?apikey=` address as a secret
2. Use the /stable paths from api-docs.md; /api/v3 and /v4 are discontinued even though the FAQ still shows a v3 example
3. On the free plan expect 5 results and page 0 on many list endpoints; read pricing.md before planning a crawl
4. A missing or wrong key returns HTTP 401 with an `Error Message` field; stop and ask the user rather than retry
5. Do not display or pass on the data in a product; personal plans forbid it

### 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

## Questions

### Which is better for AI agents, Financial Modeling Prep or Intrinio?

Intrinio scores 54.2 (C) on agent readiness against Financial Modeling Prep's 48.7 (D), and leads in 4 of 7 scored categories. Financial Modeling Prep leads on schema & documentation, payments & pricing and transparency & trust.

### Do Financial Modeling Prep and Intrinio need an API key?

Both need an API key.

### Can an agent call Financial Modeling Prep and Intrinio without installing anything?

Yes. Financial Modeling Prep has a hosted endpoint at https://financialmodelingprep.com/stable and Intrinio at https://api-v2.intrinio.com.


## For agents

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

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- [Databento vs Financial Modeling Prep](https://www.anchorterminal.com/compare/databento-vs-financial-modeling-prep.md)
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- [Financial Modeling Prep vs Finnhub](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-finnhub.md)
- [Financial Modeling Prep vs Tiingo](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-tiingo.md)
- [Financial Modeling Prep vs Twelve Data](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.md)
- [EODHD vs Financial Modeling Prep](https://www.anchorterminal.com/compare/eodhd-vs-financial-modeling-prep.md)
- [EODHD vs Intrinio](https://www.anchorterminal.com/compare/eodhd-vs-intrinio.md)
- [Benzinga vs Financial Modeling Prep](https://www.anchorterminal.com/compare/benzinga-vs-financial-modeling-prep.md)
- [Benzinga vs Intrinio](https://www.anchorterminal.com/compare/benzinga-vs-intrinio.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